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RabbitCore RCM4200 - Digi International

1. PARAMETERS channel the channel number 0 to 7 corresponding to LNO to LN7 opmode the mode of operation SINGLE single ended input DIFF differential input mAMP 4 2 mA input channel SINGLE DIFF mAMP 0 AINO AINO AINI AINO 1 AIN1 AIN1 AINO AIN1 2 AIN2 AIN2 AIN3 AIN2 3 AIN3 AIN3 AIN2 AIN3 4 AIN4 AIN4 AINS AIN4 5 AINS AINS AIN4 AINS 6 AIN6 AIN6 AIN7 AIN6 7 AIN7 AIN7 AIN6 AIN7 Not accessible on Prototyping Board 60 RabbitCore RCM4200 gaincode valuel voltsi value2 volts2 RETURN VALUE 0 if successful analnCalib continued the gain code of 0 to 7 applies only to Prototyping Board Gain Code wies N 0 xl 0 22 5 1 x2 0 11 25 2 x4 0 5 6 3 x5 0 4 5 4 x8 0 2 8 5 x10 0 2 25 6 x16 0 1 41 7 x20 0 1 126 the first A D converter channel raw count value 0 2047 the voltage or current corresponding to the first A D converter channel value 0 to 20 V or 4 to 20 mA the second A D converter channel raw count value 0 2047 the voltage or current corresponding to the first A D converter channel value 0 to 20 V or 4 to 20 mA if not able to make calibration constants SEE ALSO anaIn anaInVolts analnmAmps anaInDiff anaInCalib brdInit User s Manual 61 analnVolts float anaInVolts unsigned int channel unsigned int gaincode DESCRIPTION Reads t
2. iii 109 B 4 3 Analog Features RCM4200 O0N1Y i 110 B 4 3 1 A D Converter Inputs eden aa ehi 110 B 4 3 2 Thermistor Input mnn ie EA RANA ILE 112 B 4 3 3 A D Converter Calibratlom erret e vierten aan 112 B 4 4 Serial Communication e 113 BA4A4 1 RS 232 k a tore Aaa He i rc e E ecrit ee ies 114 B 5 Prototyping Board Jumper Configurations eene ener 115 Appendix C Power Supply 119 C T Power Supplies sec utet iaia gene me 119 C 1 1 Battery Backup anna aio eere een 119 Cul Battery Backup Circuit cec tete Leti Tae eie pe erase evt a ape tit 120 GAGS Reset Generator REESE E PA XUI PERIERE PARRA AARON 121 Index 123 Schematics 127 User s Manual RabbitCore RCM4200 1 INTRODUCTION The RCM4200 series of RabbitCore modules is one of the next generation of core modules that take advantage of new Rabbit 4000 features such as hardware DMA clock speeds of up to 60 MHz I O lines shared with up to six serial ports and four levels of alternate pin functions that include variable phase PWM auxiliary I O quadrature decoder and input capture Coupled with more than 500 new opcode instructions that help to reduce code size and improve processing speed this equates to a core module that is fast efficient and the ideal solution for a wide range of embedded applications The RCM4200 also features an integrated 10 100Base T Ethernet port an A D converter and a serial flas
3. 116 JP18 PB5 Switch S2 116 JP19 LN4 buffer filter to RCM4200 116 JP2 3 3 V current measurement 115 JP20 LN5 buffer filter to RCM4200 116 JP21 LN6 buffer filter to RCM4200 116 JP22 LN7 buffer filter to RCM4200 116 JP23 analog inputs LN4 LN6 configuration 117 JP24 analog inputs LNO LN3 configuration 117 JP3 JP4 PCO TxD LED DSZ 4 2 onem 115 SPREA 116 D S3 52 one 116 JP9 JP10 PC3 RxC Switch S3 116 RCM4200 e 99 JP1 LNO or PDO on J2 99 JP10 PE5 or SMODEO out put on J2 100 JP11 PE6 or SMODEI out put on J2 100 JP12 PE7 or STATUS out put on J2 100 JP13 clocked synchronous or programmed I O access to serial flash 100 JP14 clocked synchronous or programmed I O access to serial flash 100 JP15 clocked synchronous or programmed I O access to serial flash 100 JP16 LED DS3 display eee ere 100 JP2 LN2 or PD2 on J2 99 JP2 LN6 or PD6 on J2 99 JP4 LN7 or PD7 on J2 99 JP5 LN5 or PDS on J2 99 JP6 LN4 or PD4 on J2 99 JP7 LN3 or PD3 on J2 JP8 data SRAM size 100 JP9 LNI or PDI on J2 mS 100 jumper locations 99 M MAC addresses 78 O onchip encryption RAM how to use 17 P pinout Ethernet
4. DNLOADCALIB C Demonstrates how to retrieve analog calibration data to rewrite it back to the user block using a terminal emulation utility such as Tera Term 29 rar Start Tera Term or another terminal emulation program Ji on your PC and configure the serial parameters as 29 2 follows e Baud rate 19 200 bps 8 bits no parity 1 stop bit e Enable Local Echo option e Feed options Receive CR Transmit CR LF Now compile and run this sample program Verify that the message Waiting Please Send Data file message is being display in the Tera Term display window before proceeding Within Tera Term select File gt Send File gt Path and filename then select the OPEN option within the dialog box Once the data file has been downloaded Tera Term will indicate whether the calibration data were written successfully e UPLOADCALIB C Demonstrates how to read the analog calibration constants from the user block using a terminal emulation utility such as Tera Term Start Tera Term or another terminal emulation program on your PC and configure the serial parameters as follows User s Manual 23 e Baud rate 19 200 bps 8 bits no parity 1 stop bit e Enable Local Echo option e Feed options Receive CR Transmit CR LF Follow the remaining steps carefully in Tera Term to avoid overwriting previously saved calibration data when using
5. RabbitCore RCM4200 C Programmable Analog Core Module with Serial Flash and Ethernet User s Manual 019 0159 090508 E RabbitCore RCM4200 User s Manual Part Number 019 0159 090508 E Printed in U S A 2006 2009 Digi International Inc All rights reserved No part of the contents of this manual may be reproduced or transmitted in any form or by any means without the express written permission of Digi International Permission is granted to make one or more copies as long as the copyright page contained therein is included These copies of the manuals may not be let or sold for any reason without the express written permission of Digi International Digi International reserves the right to make changes and improvements to its products without providing notice Trademarks Rabbit RabbitCore and Dynamic C are registered trademarks of Digi International Inc Rabbit 4000 is a trademark of Digi International Inc The latest revision of this manual is available on the Rabbit Web site www rabbit com for free unregistered download Digi International Inc www rabbit com RabbitCore RCM4200 TABLE OF CONTENTS Chapter 1 Introduction 1 TI ORCMA200 Peature sc oicec aceraca iaia 2 1 2 Advantages of the RCM4200 iii einen 4 1 3 Development and Evaluation ToolS eese eese enne nennen entere nnn nennen nnne enne 5 1 3 1 RCM4200 Development Kit erret ii iii ir 5 1
6. 5 2 7 2 Alerts These function calls can be found in the Dynamic C LIB RCM4xxx RCM4xxx LIB library timedAlert void timedAlert unsigned long timeout DESCRIPTION Polls the real time clock until a timeout occurs The RCM4200 will be in a low power mode during this time Once the timeout occurs this function call will enable the normal power source PARAMETER timeout the duration of the timeout in seconds RETURN VALUE None digInAlert void digInAlert int dataport int portbit int value unsigned long timeout DESCRIPTION Polls a digital input for a set value or until a timeout occurs The RCM4400W will be in a low power mode during this time Once a timeout occurs or the correct byte is received this function call will enable the normal power source and exit PARAMETERS dataport the input port data register to poll e g PADR portbit the input port bit 0 7 to poll value the value of 0 or 1 to receive timeout the duration of the timeout in seconds enter 0 for no timeout RETURN VALUE None User s Manual 53 5 2 8 Analog Inputs RCM4200 only The function calls used with the Prototyping Board features and the A D converter on the RCM4200 model are in the Dynamic C LIB RCM4xxx ADC_ADS7870 LIB library Dynamic C v 10 07 or later is required to use the A D converter function calls anaInConfig unsigned int anaInConfig unsigned int instructionbyte unsigned int cmd long brate DESCRIPT
7. 5 shared high speed CMOS compatible ports all 5 configurable as asynchronous with IrDA 4 as clocked serial SPD and 1 as SDLC HDLC 1 clocked serial port shared with serial flash 1 asynchronous clocked serial port dedicated for programming 90 RabbitCore RCM4200 Table A 1 RCM4200 Specifications continued Parameter RCM4200 RCM4210 Serial Rate Maximum asynchronous baud rate CLK 8 Slave Interface Slave port allows the RCM4200 to be used as an intelligent peripheral device slaved to a master processor Real Time Clock Yes Ten 8 bit timers 6 cascadable from the first Timers one 10 bit timer with 2 match registers and one 16 bit timer with 4 outputs and 8 set reset registers Watchdog Supervisor Yes Pulse Width Modulators 3 channels synchronized PWM with 10 bit counter 3 channels variable phase or syn chronized PWM with 16 bit counter 4channels synchronized PWM with 10 bit counter 4channels variable phase or syn chronized PWM with 16 bit counter Input Capture 2 input capture channels can be used to time input signals from various port pins Quadrature Decoder 1 quadrature decoder channel accepts inputs from external incremental encoder modules 2 quadrature decoder channels accept inputs from external incremental encoder modules Power pins unloaded 3 0 3 6 V DC 240 mA typ 3 3 V 275 mA 3
8. Input Output RXD TXD I O Strobe I1 Timer C1 RCLKF Input Capture Serial Port D 26 PC2 Input Output TXC TXF I O Strobe I2 Timer C2 27 PC3 Input Output RXC TXC RXF I O Strobe I3 Timer C3 SCLKD Input Capture Serial Port C shared by serial flash 28 PC4 Input Output TXB I O Strobe I4 PWMO TCLKE 29 PCS Input Output RXB TXB I O Strobe I5 PWMI RCLKE Input Capture Serial Port B shared by RCMA200 A D converter 30 PC6 Input Output TXA TXE T O Strobe I6 PWM2 31 PC7 Input Output RXA TXA RXE I O Strobe I7 PWM3 SCLKC Input Capture Programming port 32 PEO Input Output I O Strobe IO A20 Timer CO TCLKF INTO QRDIB User s Manual 31 Table 2 RCM4200 Pinout Configurations continued Pin Pin Name Default Use Alternate Use Notes 33 PEI Input Output I O Strobe I1 A21 Timer C1 RXD RCLKF INTI QRDIA Input Capture 34 PE2 Input Output I O Strobe I2 A22 Timer C2 TXF DREQO QRD2B Ethernet enable 35 PE3 Input Output I O Strobe I3 A23 Timer C3 RXC RXF SCLKD DREQI QRD2A Input Capture 36 PE4 Input Output I O Strobe I4 A0 INTO PWMO TCLKE 37 PES SMODEO Input Output I O Strobe I5 INTI PWMI RXB RCLKE Input Capture PES is the default configuration 38 PE6 SMODEI Input Output T O Strobe I6 PWM2 TX
9. A D converter 5 high speed CMOS compatible ports all 5 configurable as asynchro nous with IrDA 4 as clocked serial SPI and 1 as SDLC HDLC 1 clocked serial port shared with serial flash asynchronous clocked serial port dedicated for programming The RCM4200 is programmed over a standard PC USB port through a programming cable supplied with the Development Kit NOTE The RabbitLink cannot be used to program RabbitCore modules based on the Rabbit 4000 microprocessor Appendix A provides detailed specifications for the RCM4200 User s Manual 1 2 Advantages of the RCM4200 e Fast time to market using a fully engineered ready to run ready to program micro processor core e Competitive pricing when compared with the alternative of purchasing and assembling individual components e Easy C language program development and debugging e Rabbit Field Utility to download compiled Dynamic C bin files and cloning board options for rapid production loading of programs e Generous memory size allows large programs with tens of thousands of lines of code and substantial data storage 4 RabbitCore RCM4200 1 3 Development and Evaluation Tools 1 3 1 RCM4200 Development Kit The RCM4200 Development Kit contains the hardware essentials you will need to use the RCM4200 module The items in the Development Kit and their use are as follows RCM4200 module Prototyping Board Universal AC
10. Control Panel and then double click the Network icon 2 Select the network interface card used for the Ethernet interface you intend to use e g TCP IP Xircom Credit Card Network Adapter and click on the Properties button Depending on which version of Windows your PC is running you may have to select the Local Area Connection first and then click on the Properties button to bring up the Ethernet interface dialog Then Configure your interface card for a 10Base T Half Duplex or an Auto Negotiation connection on the Advanced tab NOTE Your network interface card will likely have a different name 3 Now select the IP Address tab and check Specify an IP Address or select TCP IP and click on Properties to assign an IP address to your computer this will disable obtain an IP address automatically IP Address 10 10 6 101 Netmask 255 255 255 0 Default gateway 10 10 6 1 4 Click OK or Closes to exit the various dialog boxes RCM4200 IP 10 10 6 101 System Netmask 255 255 255 0 User s PC Ethernet crossover cable Direct Connection PC to RCM4200 Module User s Manual 83 6 5 Run the PINGME c Sample Program Connect the crossover cable from your computer s Ethernet port to the RCM4200 mod ule s RJ 45 Ethernet connector Open this sample program from the SAMPLES TCPIP ICMP folder compile the program an
11. channels with one gain using two known voltages to generate the calibration constants for each channel The constants will be written into the user block data area Connect a positive voltage from 0 20 V DC for example the power supply positive out put to analog input channels LNOIN LNE6IN on the Prototyping Board and connect the ground to GND Use a voltmeter to measure the voltage and follow the instructions in the Dynamic C STDIO window once you compile and run this sample program Remember that analog input LN7 on the Prototyping Board is used with the thermistor and is not be used with this sample program NOTE The above sample program will overwrite the existing calibration constants e AD CAL CHAN C Demonstrates how to recalibrate one single ended analog input channel with one gain using two known voltages to generate the calibration constants for that channel The constants will be rewritten into the user block data area Connect a positive voltage from 0 20 V DC for example the power supply positive out put to an analog input channel on the Prototyping Board and connect the ground to GND Use a voltmeter to measure the voltage and follow the instructions in the Dynamic C STDIO window once you compile and run this sample program Remember that analog input LN7 on the Prototyping Board is used with the thermistor and is not be used with this sample program NOTE The above sample program will overwrite the existing calibrati
12. 1 2 for the RCM4200 module and 10 1 1 1 for your PC you can edit the values in the section that directly follows the General Configuration com ment in the TCP CONFIG LIB library You will find this library in the LIB TCPIP directory You can create a CUSTOM CONFIG LIB library and use a TCPCONFIG value greater than 100 Instructions for doing this are at the beginning of the TCP_CONFIG LIB library in the LIB TCPIP directory There are some other standard configurations for TCPCONFIG that let you select differ ent features such as DHCP Their values are documented at the top of the TCP_CON FIG LIB library in the LIB TCPIP directory More information is available in the Dynamic C TCP IP User s Manual 82 RabbitCore RCM4200 6 4 2 How to Set Up your Computer for Direct Connect Follow these instructions to set up your PC or notebook Check with your administrator if you are unable to change the settings as described here since you may need administrator privileges The instructions are specifically for Windows 2000 but the interface is similar for other versions of Windows TIP If you are using a PC that is already on a network you will disconnect the PC from that network to run these sample programs Write down the existing settings before changing them to facilitate restoring them when you are finished with the sample pro grams and reconnect your PC to the network 1 Go to the control panel Start gt Settings gt
13. 11 22 The measurements are taken at the 5096 points under the following conditions e T 40 C to 85 C V VDDjo 10 e Internal clock to nonloaded CLK pin delay lt 1 ns 85 C 3 0 V The clock to address output delays are similar and apply to the following delays e T the clock to address delay e Tcs x the clock to memory chip select delay e Trocsx the clock to I O chip select delay e Tiorp the clock to I O read strobe delay e Tjowg the clock to I O write strobe delay e Tpuren the clock to I O buffer enable delay The data setup time delays are similar for both Tyetyp and Toda When the spectrum spreader is enabled with the clock doubler every other clock cycle is shortened sometimes lengthened by a maximum amount given in the table above The shortening takes place by shortening the high part of the clock If the doubler is not enabled then every clock is shortened during the low part of the clock period The maxi mum shortening for a pair of clocks combined is shown in the table Technical Note TN227 Interfacing External I O with Rabbit Microprocessor Designs contains suggestions for interfacing I O devices to the Rabbit 4000 microprocessors User s Manual 97 A 5 Conformal Coating The areas around the 32 kHz real time clock crystal oscillator have had the Dow Corning silicone based 1 2620 conformal coating applied The conformally coated area is shown in Figure A 5 The conformal
14. 32 SOIDWOTB itur eremi teilen esent ene tee INI M II E TU tees nee 6 1 3 3 Onlme Documentatlon esee ei exte E a Rohr sabe see ba eorr bae Eee eR e Eee read duet 6 Chapter 2 Getting Started 7 ZI Navstel yr tin Ces se ioe occa tees ete periere e iumtut nte teint it 7 2 2 Hardware Connections iecit e inei tete ias tia 8 2 2 1 Step 1 Prepare the Prototyping Board for Development eene 8 2 2 2 Step 2 Attach Module to Prototyping Board sese 9 2 2 3 Step 3 Connect Programming Cable sess eene 10 2 2 4 Step 4 Connect POWet ertet ricette rinite piena dte teritori 11 2 3 Rund Sample Program sc uere ort oeeeet kitten erp EES E eor pet neo e ee Persei beso eua esos ep Doer PP eine e aS 12 CRM renis A 12 2 4 Where Do T Go Prom Here ise esee rere ente Rat 13 p MES LEIBNI NOTE 13 Chapter 3 Running Sample Programs 15 ues 15 3 2 Sample Programs 3er ete etie eet ee EER EE ig ese bes eue Deep rai 16 3 2 1 Use of Serial Flash i 18 3 2 2 Serial Communica oN sesen rne irienner rir EE e E EE EErEE ar E EE ENE E EE ETAC EKER RETo 19 3 2 3 A D Converter Inputs RCM4200 0N1Y 22 3 2 3 1 Downloading and Uploading Calibration Constants eene 23 3 24 RealTime Clock em sniene ra aer aE Ea aae EEn Ee EEE EE E VES EBPN EENE RE A ie
15. AIN1 2 AIN2 AIN2 AIN3 AIN2 3 AIN3 AIN3 AIN2 AIN3 4 AIN4 AIN4 AIN5 AIN4 5 AINS AINS AIN4 AINS 6 AIN6 AIN6 AIN7 AIN6 7 AIN7 AIN7 AIN6 AIN7 ALLCHAN read all channels for selected opmode Not accessible on Prototyping Board User s Manual 69 anaInEEWr continued gaincode the gain code of 0 to 7 The gaincode parameter is ignored when channel is ALLCHAN Gain Code Bet ole nee 0 x1 0 22 5 1 x2 0 11 25 2 x4 0 5 6 3 x5 0 4 5 4 x8 0 2 8 5 x10 0 2 25 6 x16 0 1 41 7 x20 0 1 126 Applies to Prototyping Board RETURN VALUE 0 if successful if address is invalid or out of range SEE ALSO analnEEWr analnCalib 70 RabbitCore RCM4200 5 3 Upgrading Dynamic C Dynamic C patches that focus on bug fixes are available from time to time Check the Web site www rabbit com support for the latest patches workarounds and bug fixes 5 3 1 Add On Modules Dynamic C installations are designed for use with the board they are included with and are included at no charge as part of our low cost kits Rabbit Semiconductor offers for purchase add on Dynamic C modules including the popular uC OS II real time operating system as well as PPP Advanced Encryption Standard AES FAT file system Rabbit Web and other select libraries NOTE Version 2 10 or later of the Dynamic C FAT file system module is required for the RCM4200 mod
16. Dynamic C and the sample programs 1 Prepare the Prototyping Board for Development 2 Attach the RCM4200 module to the Prototyping Board 3 Connect the programming cable between the RCM4200 and the PC 4 Connect the power supply to the Prototyping Board 2 2 1 Step 1 Prepare the Prototyping Board for Development Snap in four of the plastic standoffs supplied in the bag of accessory parts from the Devel opment Kit in the holes at the corners as shown in Figure 2 Figure 2 Insert Standoffs 8 RabbitCore RCM4200 2 2 2 Step 2 Attach Module to Prototyping Board Turn the RCM4200 module so that the mounting holes line up with the corresponding holes on the Prototyping Board Insert the metal standoffs as shown in Figure 3 secure them from the bottom using two screws and washers then insert the module s header J2 on the bottom side into socket RCMI on the Prototyping Board Insert standoffs between uuu o mounting holes and gc 2 DE di Prototyping Board E y 7 emi TON uo UXA Ta Lod B o000000000 ONQOQOQOQQQQO 00000Q0QQQQOQOO pro OOOOOOOOOOOOOO rx OO0OO0000000000 r OOOO0000000000R RCM4200 f O0000000000000 00000000000000 ra 00000000000000 ra ooo000000000000123 ra 00000000000000 ra 00000000000000 i 90000090000900Q l t Line up mounting 0000000000000 holes with
17. E Port C Serial Port D will always be checking parity so parity errors should occur during every other sequence To set up the Prototyping Board you will need to tie TxC and RxD together on the RS 232 header at J4 using one of the jumpers supplied in the Development Kit as shown in the diagram The Dynamic C STDIO window will display the error sequence e SERDMA C This program demonstrates using DMA to transfer data from a circular buffer to the serial port and vice versa The Dynamic C STDIO window is used to view or clear the buffer Before you compile and run the sample program you will need to connect the RS 232 header at J4 to your PC as shown in the diagram using the serial to DB9 cable Colored supplied in the Development Kit edge 3 Once you have compiled and run the sample program start Tera Term or another terminal emulation program to connect to the selected PC serial port at a baud rate of 115 200 bps You can observe the output in the Dynamic C STDIO window as you type in Tera Term and you can gg also use the Dynamic C STDIO window to clear the Janes buffer d 8 The Tera Term utility can be downloaded from hp vector co jp authors VA002416 teraterm html User s Manual 19 e SIMPLE3WIRE C This program demonstrates basic RS 232 serial communication Lower case characters are sent on TxC and are eae received by RxD The received
18. Ethernet con nectors are numbered in reverse to the order used here ETHERNET RJ 45 Plug Figure 8 RJ 45 Ethernet Port Pinout Three LEDs are placed next to the RJ 45 Ethernet jack one to indicate Ethernet link activity LINK ACT one to indicate when the RCM4200 is connected to a functioning 100Base T network SPEED and one FDX COL to indicate that the current connection is in full duplex mode steady on or that a half duplex connection is experiencing collisions blinks The RJ 45 connector is shielded to minimize EMI effects to from the Ethernet signals User s Manual 37 4 2 3 Programming Port The RCM4200 is programmed via the 10 pin header labeled J1 The programming port uses the Rabbit 4000 s Serial Port A for communication Dynamic C uses the programming port to download and debug programs Serial Port A is also used for the following operations e Cold boot the Rabbit 4000 on the RCM4200 after a reset e Fast copy designated portions of flash memory from one Rabbit based board the master to another the slave using the Rabbit Cloning Board Alternate Uses of the Programming Port All three Serial Port A signals are available as e asynchronous serial port e an asynchronous serial port with the clock line usable as a general CMOS I O pin The programming port may also be used as a serial port via the DIAG connector on the programming cable In addition to Serial Port A the Rabbit 4000 startup
19. JP6 LN4 or PD4 on J2 pin 44 2 3 PD4 RCM4210 User s Manual Table A 9 RCM4200 Jumper Configurations continued Header Description Pins Connected Factory Default 1 2 LN3 RCM4200 JP7 LN3 or PD3 on J2 pin 43 2 3 PD3 RCM4210 1 2 512K x JP8 Data SRAM Size 2 3 256K 1 2 LN1 RCM4200 JP9 LNI or PDI on J2 pin 41 2 3 PDI RCM4210 1 2 PES x PES or SMODEO Output JP10 on J2 pin 37 2 3 SMODEO 1 2 PE6 X PE6 or SMODEI Output JP11 on J2 pin 38 2 3 SMODE1 1 2 PE7 x PE7 or STATUS Output JP12 on J2 pin 39 2 3 STATUS Clocked Synchronous or 1 2 RxC to Serial Flash x JP13 Programmed I O Access to Serial Flash 2 3 Programmed I O to Serial Flash Clocked Synchronous or 1 2 TxC to Serial Flash x JP14 Programmed I O Access to Serial Flash 2 3 Programmed I O to Serial Flash Clocked Synchronous or 1 2 SCLKC to Serial Flash x JP15 Programmed I O Access to Serial Flash 2 3 Programmed I O to Serial Flash 1 2 FDX COL displayed by LED DS3 x JP16 LED DS3 Display optional ACT displayed by LED es DS3 NOTE The jumper connections are made using 0 Q surface mounted resistors 100 RabbitCore RCM4200 APPENDIX B PROTOTYPING BOARD Appendix B describes the features and accessories of the Proto typing Board and explains the use of the Prototyping Board to demonstrate the RCM4200 and to build prot
20. MHz NOTE Do not depend on the flash memory sector size or type in your program logic The RCM4200 and Dynamic C were designed to accommodate flash devices with various sector sizes in response to the volatility of the flash memory market Developing software with Dynamic C is simple Users can write compile and test C and assembly code without leaving the Dynamic C development environment Debugging occurs while the application runs on the target Alternatively users can compile a program to an image file for later loading Dynamic C runs on PCs under Windows 95 and later Programs can be downloaded at baud rates of up to 460 800 bps after the program compiles User s Manual 47 Dynamic C has a number of standard features e Full feature source and or assembly level debugger no in circuit emulator required e Royalty free TCP IP stack with source code and most common protocols e Hundreds of functions in source code libraries and sample programs gt Exceptionally fast support for floating point arithmetic and transcendental functions gt RS 232 and RS 485 serial communication gt Analog and digital I O drivers gt 1 C SPI GPS file system gt LCD display and keypad drivers Powerful language extensions for cooperative or preemptive multitasking e Loader utility program to load binary images into Rabbit targets in the absence of Dynamic C e Provision for customers to create their own source code libraries and augment
21. Rabbit 4000 at 58 98 MHz Rabbit 4000 at 29 49 MHz EMI Reduction Spectrum spreader for reduced EMI radiated emissions Ethernet Port 10 100Base T RJ 45 3 LEDs Data SRAM 512K 8 bit Program Execution Fast SRAM 512K 8 bit Flash Memory 512K 8 bit Serial Flash Memory 8 Mbytes 4 Mbytes Connection for user supplied backup battery Backup Banery to support RTC and data SRAM General Purpose I O 25 parallel digital T O lines configurable with four layers of alternate functions 35 parallel digital I O lines configurable with four layers of alternate functions A D Converter Resolution A D Conversion Time including 120 us raw Additional Inputs 2 startup mode reset in CONVERT 2 startup mode reset in Additional Outputs Status reset out analog VREF Status reset out 8 channels single ended or 4 channels differential Analog Inputs Programmable gain 1 2 4 5 8 10 16 and 20 V V 12 bits 11 bits single ended 180 us Auxiliary I O Bus Can be configured 6 address lines shared with parallel I O lines plus I O read write for 8 data lines and Serial Ports 4 shared high speed CMOS compatible ports all4configurable as asynchronous with IrDA 4 as clocked serial SPI asynchronous clocked serial port shared with programming port 1 clocked serial port shared with serial flash 1 clocked serial port shared with A D converter
22. avoid conflicts between the data SRAM and the program execution fast SRAM 50 RabbitCore RCM4200 5 2 5 RCM4200 Cloning The RCM4200 does not have a pull up resistor on the PB1 CLKA line of the program ming port Because of this the procedure to generate clones from the RCM4200 differs from that used for other RabbitCore modules and single boards computers You must set the CL FORCE MASTER MODE macro to in the Dynamic C CLONECONFIG LIB library to use the RCM4200 as a master for cloning An RCM4200 master will not run the appli cation and further debugging is not possible as long as the CL FORCE MASTER MODE macro is set to 1 Any cloned RCM4200 modules will be sterile meaning that they can not be used as a master for cloning To develop and debug an application on an RCM4200 comment out the CL FORCE MASTER MODE macro or set it to 0 NOTE Instead of defining this macro is your application you may simply add the line CL FORCE MASTER MODE 1 under the Dynamic C Options gt Project Options Defines tab then click OK When you recompile your program this will have the same effect as setting the macro to 1 within the CLONECONFIG LIB library See Technical Note TN207 Rabbit Cloning Board for additional information on Rabbit Semiconductor s cloning board and how cloning is done 5 2 6 Serial Flash Drivers The Dynamic C LIB SerialFlash SFLASH LIB and LIB SerialFlash SFLASH FAT LIB libraries provide the function calls nee
23. can flow only out of the battery to prevent charging the battery e A voltage VOSC is supplied to U6 which keeps the 32 768 kHz oscillator working when the voltage begins to drop 120 RabbitCore RCM4200 C 1 3 Reset Generator The RCM4200 uses a reset generator to reset the Rabbit 4000 microprocessor when the volt age drops below the voltage necessary for reliable operation The reset occurs between 2 85 V and 3 00 V typically 2 93 V Since the RCM4200 will operate at voltages as low as 3 0 V exercise care when operating close to the 3 0 V minimum voltage for example keep the power supply as close as possible to the RCM4200 since your RCM4200 could reset unintentionally The RCM4200 has a reset output pin 3 on header J2 User s Manual 121 122 RabbitCore RCM4200 A A D converter access via Prototyping Board uus dien 110 function calls anal 58 anaInCalib 60 anaInConfig 54 anaInDiff 64 anaInDriver 56 anaInEERd 67 anaInEEWT 69 analnmAmps 66 anaInVolts 62 inputs differential measure ments 111 negative voltages 111 single ended measure ments 110 additional information online documentation 6 analog inputs See A D converter auxiliary I O bus 34 B b
24. characters are converted to upper case US TxD RxD GNI and are sent out on TxD are received on RxC and are displayed in the Dynamic C STDIO window To set up the Prototyping Board you will need to tie TxD and RxC together on the RS 232 header at J4 and you will also tie RxD and TxC together using the jumpers supplied in the Development Kit as shown in the diagram e SIMPLE5WIRE C This program demonstrates 5 wire RS 232 serial communication with flow control on Serial Port D and data flow on Serial Port C To set up the Prototyping Board you will need to tie TxD and RxD together on the RS 232 header at J4 and you will also tie TxC and Rae s RxC together using the jumpers supplied in the Development Kit as I 0 o J4 TxD RxD GND shown in the diagram Once you have compiled and run this program you can test flow con trol by disconnecting the TxD jumper from RxD while the program is running Charac ters will no longer appear in the STDIO window and will display again once TxD is connected back to RxD If you have two Prototyping Boards with modules run this sample program on the sending board then disconnect the programming cable and reset the sending board so that the module is operating in the Run mode Connect TxC TxD and GND on the sending board to RxC RxD and GND on the other board then with the programming cable attached to the other modul
25. coating protects these high impedance circuits from the effects of moisture and contaminants over time 1 Wm Jen Conformally coated area Figure A 5 RCM4200 Areas Receiving Conformal Coating Any components in the conformally coated area may be replaced using standard soldering procedures for surface mounted components A new conformal coating should then be applied to offer continuing protection against the effects of moisture and contaminants NOTE For more information on conformal coatings refer to Technical Note 303 Con formal Coatings 98 RabbitCore RCM4200 A 6 Jumper Configurations Figure A 6 shows the header locations used to configure the various RCM4200 options via jumpers See ee ohne UUUUUUTUTU J O100 OXON NO Figure A 6 Location of RCM4200 Configurable Positions Table A 9 lists the configuration options Table A 9 RCM4200 Jumper Configurations EE Factory Header Description Pins Connected Default 1 2 LNO RCM4200 JP1 LNO or PDO on J2 pin 40 2 3 PDO RCM4210 1 2 LN2 RCM4200 JP2 LN2 or PD2 on J2 pin 42 2 3 PD2 RCM4210 1 2 LN6 RCM4200 JP3 LN6 or PD6 on J2 pin 46 2 3 PD6 RCM4210 1 2 LN7 RCM4200 JP4 LN7 or PD7 on J2 pin 47 2 3 PD7 RCM4210 1 2 LN5 RCM4200 JP5 LN5 or PDS on J2 pin 45 2 3 PD5 RCM4210 1 2 LN4 RCM4200
26. float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset 2 float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset ADMA 3 float gain float offset 4 float gain float offset END 24 RabbitCore RCM4200 3 2 4 Real Time Clock If you plan to use the real time clock functionality in your application you will need to set the real time clock Set the real time clock using the SETRTCKB C sample program from the Dynamic C SAMPLES RTCLOCK folder using the onscreen prompts The RTC_TEST C sample program in the Dynamic C SAMPLES RTCLOCK folder provides additional examples of how to read and set the real time clock User s Manual 25 26 RabbitCore RCM4200 4 HARDWARE REFERENCE Chapter 4 describes the hardware components and principal hardware subsystems of the RCM4200 Appendix A RCM4200 Specifica tions provides complete physical and electrical specifications Figure 5 shows the Rabbit based subsystems designed into the RCM4200 Customer specific applications RABBIT CMOS level signals 4000 Level Flash RS 232 RS 485 serial communication A D Converter drivers on motherboard RabbitCore Module Figure 5 RCM4200 Subsystems User s Ma
27. includes some background on the chip select circuit used in power management C 1 Power Supplies The RCM4200 requires a regulated 3 0 V 3 6 V DC power source The RabbitCore design presumes that the voltage regulator is on the user board and that the power is made available to the RCM4200 board through header J2 An RCM4200 with no loading at the outputs operating at 58 98 MHz typically draws 240 mA and may draw up to 275 mA at 3 6 V and 85 C the corresponding current draw for the RCM4210 is typically 200 mA and up to 225 mA at 3 6 V and 85 C C 1 1 Battery Backup The RCM4200 does not have a battery but there is provision for a customer supplied bat tery to back up the data SRAM and keep the internal Rabbit 4000 real time clock running Header J2 shown in Figure C 1 allows access to the external battery This header makes it possible to connect an external 3 V power supply This allows the SRAM and the inter nal Rabbit 4000 real time clock to retain data with the RCM4200 powered down 43 3 V IN 1 External Battery INZ AW a VBAT_EXT 7 Figure C 1 External Battery Connections at Header J2 A lithium battery with a nominal voltage of 3 V and a minimum capacity of 165 mA h is recommended A lithium battery is strongly recommended because of its nearly constant nominal voltage over most of its life User s Manual 119 The drain on the battery by the
28. locations used to configure the various Prototyping Board options via jumpers e gt U gt V U gt UU UU DEDEDERDBRLI P J J JP J J JP J J P J P e TINOT NONM EANNAN D 0 0 0 0 0 0 0 E JP24 ez Figure B 8 Location of Configurable Jumpers on Prototyping Board Table B 6 lists the configuration options using either jumpers or 0 surface mount resistors Table B 6 RCM4200 Prototyping Board Jumper Configurations Header Description Pins Connected Pactor Default JP1 5 V Current Measurement 1 2 Via trace or jumper Connected JP2 3 3 V Current Measurement 1 2 Via trace or jumper Connected i TxD on header J4 x I PCO TxD LED DS2 JP4 JP4 12 PCO to LED DS2 n c PCO available on header J2 User s Manual 115 Table B 6 RCM4200 Prototyping Board Jumper Configurations continued Header Description Pins Connected Factory Default RxD on header J4 x JS PCI RxD Switch S2 JP6 JP6 12 PCI to Switch S2 n c PCI available on header J2 n TxC on header J4 x TET PC2 TxC LED DS3 JP6 JP8 12 PC2 to LED DS3 n c PC2 available on header J2 JE PC3 to Switch S3 1 2 n PC3 RxC Switch S3 JP10 JP10 L2 RxC on header J4 x n c PC3 available on header J2 JP11 LNO buffer filter to RCM4200 1 2 Connected 1 2 Connected PB2 to LED DS2 x
29. on line help by creating function description block comments using a special format for library functions e Standard debugging features gt Breakpoints Set breakpoints that can disable interrupts gt Single stepping Step into or over functions at a source or machine code level uC OS I aware gt Code disassembly The disassembly window displays addresses opcodes mnemonics and machine cycle times Switch between debugging at machine code level and source code level by simply opening or closing the disassembly window gt Watch expressions Watch expressions are compiled when defined so complex expressions including function calls may be placed into watch expressions Watch expressions can be updated with or without stopping program execution gt Register window All processor registers and flags are displayed The contents of general registers may be modified in the window by the user D Stack window shows the contents of the top of the stack gt Hex memory dump displays the contents of memory at any address gt STDIO window printt outputs to this window and keyboard input on the host PC can be detected for debugging purposes printf output may also be sent to a serial port or file 48 RabbitCore RCM4200 5 2 Dynamic C Function Calls 5 2 1 Digital I O The RCM4200 was designed to interface with other systems and so there are no drivers written specifically for the I O The general Dynamic C read an
30. port 37 Prototyping Board 107 RCM4200 alternate configurations 30 RCM4200 headers 28 power supplies T3 V al arin cees ticks 119 battery backup 119 Program Mode 39 switching modes 39 programming cable PROG connector 39 RCM4200 connections 10 programming port 38 Prototyping Board 102 access to RCM4200 analog inputs Li 103 adding components 109 dimensions 105 expansion area 103 features 102 103 jumper configurations 115 jumper locations 115 mounting RCM4200 9 pinout eee 107 power supply 106 prototyping area 108 specifications 106 use of Rabbit 4000 signals 108 R Rabbit 4000 spectrum spreader time delays 97 Rabbit subsystems 29 RCM4200 mounting on Prototyping Boat isc seins 9 real time clock battery backup 120 Run Mode 39 switching modes 39 S sample programs 16 A D converter AD CAL ALL C 22 112 AD CAL CHAN C 22 112 AD RDVOLT ALL C AD SAMPLE 22 THERMISTOR C 23 112 A D converter calibration DNLOADCALIB C 23 UPLOADCALIB C 23 getting to
31. same the file name e Enable the File APPEND option at the bottom of the dialog box e Select the OPEN option at the right hand side of the dialog box Tera Term is now ready to log all data received on the serial port to the file you specified You are now ready to compile and run this sample program A message will be displayed in the Tera Term display window once the sample program is running Enter the serial number you assigned to your RabbitCore module in the Tera Term display window then press the ENTER key The Tera Term display window will now display the calibration data Now select CLOSE from within the Tera Term LOG window which will likely be a separate pop up window minimized at the bottom of your PC screen This finishes the logging and closes the file Open your data file and verify that the calibration data have been written properly A sample is shown below Serial port transmission Uploading calibration table Enter the serial number of your controller 9MN234 SN9MN234 ADSE 0 float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset dl float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset float gain float offset ADDF 0 float gain float offset
32. to the direct connection using a crossover cable is a direct connection using a hub The hub relays packets received on any port to all of the ports on the hub Hubs are low in cost and are readily available The RCM4200 uses 10 Mbps Ethernet so the hub or Ethernet adapter can be a 10 Mbps unit or a 10 100 Mbps unit In a corporate setting where the Internet is brought in via a high speed line there are typi cally machines between the outside Internet and the internal network These machines include a combination of proxy servers and firewalls that filter and multiplex Internet traf fic In the configuration below the RCM4200 could be given a fixed address so any of the computers on the local network would be able to contact it It may be possible to configure the firewall or proxy server to allow hosts on the Internet to directly contact the controller but it would probably be easier to place the controller directly on the external network out side of the firewall This avoids some of the configuration complications by sacrificing some security User s Manual 75 Firewall Proxy Server Res E Network AT Ethernet Ethernet RCM4200 Typical Corporate Network System If your system administrator can give you an Ethernet cable along with its IP address the netmask and the gateway address then you may b
33. up 21 PB5 Switch S3 normally open pulled up 22 23 PB6 PB7 Output pulled high 24 25 PCO PCI Serial Port D RS 232 header J4 high 26 27 PC2 PC3 Serial Port C used by serial flash high 28 29 PCA PCS Serial Port B used by A D converter RCM4200 only 30 31 PC6 PC7 Serial Port A programming port high 32 33 PEO PE1 Output high 34 PE2 External I O strobe Ethernet 35 38 PE3 PE6 Output high 39 PE7 Serial flash SCLK 40 47 LNO LN7 A D converter inputs RCM4200 only 48 CONVERT st VERT input RCM4200 49 VREE a ese voltage RCM4200 DET ec PDO PD7 output high are available on these pins for the RCM4210 There is a 1 3 x 2 through hole prototyping space available on the Prototyping Board The holes in the prototyping area are spaced at 0 1 2 5 mm 3 3 V 5 V and GND traces run along the top edge of the prototyping area for easy access Small to medium circuits can be prototyped using point to point wiring with 20 to 30 AWG wire between the proto typing area the 43 3 V 5 V and GND traces and the surrounding area where surface 108 RabbitCore RCM4200 mount components may be installed Small holes are provided around the surface mounted components that may be installed around the prototyping area B 4 1 Adding Other Components There are pads for 28 pin TSSOP devices 16 pin SOIC devices and 6 pin SOT devices that can be used for surface mount prototyping with these devices There are al
34. update is 100 complete This assures the integrity of the data in case a reset or a power failure occurs during the update process At power on the application program uses the active copy of the variable pointed to by its associated flag The sample code below shows how a protected variable is defined and how its value can be restored main protected int statel state2 state3 SysIsSoftReset restore any protected variables The bbram keyword may also be used instead if there is a need to store a variable in battery backed SRAM without affecting the performance of the application program Data integrity is not assured when a reset or power failure occurs during the update process Additional information on bbram and protected variables is available in the Dynamic C User s Manual 5 2 4 1 SRAM Chip Select Considerations The basic SRAM memory on Rabbit based boards is always connected to CS1 OE1 and WEI Both the data SRAM and the program execution fast SRAM on the RCM4200 share OE1 The BIOS defined macro C81 ALWAYS ON is set to 0 by default to disable CS1 set it high The macro may be redefined in the BIOS to 1 which will set a bit in the MMIDR register that forces CS1 to stay enabled low This capability is normally used to speed up access time for battery backed SRAM as long as no other memory chips are connected to OE1 and WE1 Therefore the CS1 ALWAYS ON macro must remain at its default setting of 0 to
35. 00 read ID and set byte rate cmd the command data that configure the registers addressed by the in struction byte Enter 0 if you are performing a read operation For example i analnConfig 0x07 0x3b 0 write ref osc reg and enable brate the serial clock transfer rate of 9600 to 115 200 bytes per second brate must be set the first time this function is called Enter 0 for this parameter thereafter for example anaInConfig 0x00 0x00 9600 resets device and sets byte rate RETURN VALUE 0 on write operations data value on read operations SEE ALSO anaInDriver anaIn brdInit User s Manual 55 analnDriver int anaInDriver unsigned int cmd DESCRIPTION Reads the voltage of an analog input channel by serial clocking an 8 bit command to the A D converter by its Direct Mode method This function assumes that Model most significant byte first and the A D converter oscillator have been enabled See anaIn Config for the setup The conversion begins immediately after the last data bit has been transferred An ex ception error will occur if Direct Mode bit D7 is not set An exception error will occur if Direct Mode bit D7 is not set PARAMETERS cmd contains a gain code and a channel code as follows D7 1 D6 D4 Gain Code D3 D0 Channel Code Use the following calculation and the tables below to determine cmd cmd 0x80 gain code 16 channel code Gain Gain Code Multip
36. 00 e TAMPERDETECTION C demonstrates how to detect an attempt to enter the bootstrap mode When an attempt is detected the battery backed onchip encryption RAM on the Rabbit 4000 is erased This battery backed onchip encryption RAM can be useful to store data such as an AES encryption key from a remote location This sample program shows how to load and read the battery backed onchip encryption RAM and how to enable a visual indicator Once this sample is compiled and running you pressed the F9 key while the sample program is open remove the programming cable and press the reset button on the Prototyping Board to reset the module LEDs DS2 and DS3 will be flashing on and off Now press switch S2 to load the battery backed RAM with the encryption key The LEDs are now on continuously Notice that the LEDs will stay on even when you press the reset button on the Prototyping Board Reconnect the programming cable briefly and unplug it again to simulate an attempt to access the onchip encryption RAM The LEDs will be flashing because the battery backed onchip encryption RAM has been erased Notice that the LEDs will continue flashing even when you press the reset button on the Prototyping Board You may press switch S2 again and repeat the last steps to watch the LEDs e TOGGLESWITCH C demonstrates the use of costatements to detect switch presses using the press and release method of debouncing LEDs DS2 and DS3 on the Proto typing Boa
37. 00 SCLKB PBO only RCLKE PDS PCS PES TXC PC2 PC3 TCLKE PD4 PC4 PE4 Serial Port C s iad RXC PC3 PD3 PE3 RCLKE must be selected to be on the same parallel Serial flash S LKC PD2 PE2 PE7 PC7 port as TXE 4 2 1 1 Using the Serial Ports The receive lines on the RCM4200 serial ports do not have pull up resistors If you are using the serial ports without a receiver chip for example for RS 422 RS 232 or RS 485 serial communication the absence of a pull up resistor on the receive line will likely lead to line breaks being generated since line breaks are normally generated whenever the receive line is pulled low If you are operating a serial port asynchronously you can inhibit character assembly during breaks by setting bit 1 in the corresponding Serial Port Extended Register to 1 Should you need line breaks you will have to either add a pull up resistor on your motherboard or use a receiver that incorporates the circuits to have the output default to the nonbreak levels The Dynamic C RS232 LIB library requires you to define the macro RS232_ NOCHARASSYINBRK to inhibit break character assembly for all the serial ports define RS232 NOCHARASSYINBRK This macro is already defined so that it is the default behavior for the sample programs in the Dynamic C SAMPLES RCM4200 SERIAL folder 36 RabbitCore RCM4200 4 2 2 Ethernet Port Figure 8 shows the pinout for the RJ 45 Ethernet port J3 Note that some
38. 000000000 O reeO0O0O000000000000 Lee rs OOOOOOOOOO0000 E C OC OO o Ol re Ooooooooooooo x OoooooooooooooooO AI O O i MD OQ OJO OJOIO OOJO QQQ OO OJOO I o ool n 310 78 8 3 80 97 r O0000000000000000 amp OOOOOOOOOOOOOOOO fe OOOOOOOOOOOOOOOO i OOOOOOOOOOOOOQ LZ mOOOOO 00000000 000000 Rey RT E s 853553 AIN DSS J3 OO0000lf1 Of an ld Q Q ali RAT 7x BL AN ITO BOD CON BO BOD A A TENOS SO GOO GOO6 GOOD amp Y 00000000000000000000000 E ctO000000000000000000000000 c c gil Kat m ler 1 d LI N O A e i Qu y OU UURJU ONAAVZCV z amp pw Jos vw ji e E ooooo 58581 e e E Dlo EE R21 DODO R2BE ID LIH O C ver vx 1 0 15 3 8 0 165 3 485 0 15 4 2 88 5 I 3 8 Figure B 2 Prototyping Board Dimensions User s Manual 105 Table B 1 lists the electrical mechanical and environmental specifications for the Proto typing Board Table B 1 Prototyping Board Specifications Parameter Specification Board Size 3 80 x 3 80 x 0 48 97 mm x 97 mm x 12 mm Operating Temperature 0 C to 70 C Humidity 5 to 95 noncondensing Input Voltage 8 V to 24 VDC Maximum C
39. 090 0230 pdf 090 0128 Programming Cable Schematic www rabbit com documentation schemat 090 0128 pdf 090 0252 USB Programming Cable Schematic www rabbit com documentation schemat 090 0252 pdf You may use the URL information provided above to access the latest schematics directly User s Manual 127
40. 1 or JP2 you must either be using the ammeter or have a jumper in place in order for power to be delivered to the Prototyping Board User s Manual 109 B 4 3 Analog Features RCM4200 only The Prototyping Board has typical support circuitry installed to complement the ADS7870 A D converter on the RCM4200 model the A D converter is not available on the RCM4210 model B 4 3 1 A D Converter Inputs Figure B 6 shows a pair of A D converter input circuits The resistors form an approx 11 1 attenuator and the capacitor filters noise pulses from the A D converter input The 470 Q inline jumpers allow other configurations see Table B 6 and provide digital isolation when you are not using an A D converter Parallel Port D is available These jumpers optimize using RabbitCore modules with or without A D converters if you are designing your own circuit the best performance for the A D converter would be realized with 0 Q resistors Inline jumpers are 470 Q resistors 100 kQ ADC LNO_IN e n NANI RCM4200 LN1 IN ANN 100 kQ c c 22nF 22nF x mE JP23 JP24 5 BVREF 2 048 V E li 1 Figure B 6 A D Converter Inputs AGND The A D converter chip can make either single ended or differential measurements depending on the value of the opmode parameter in the software function call Adjacent AID converter inputs are paired to make differentia
41. 25 Chapter 4 Hardware Reference 27 4 1 RCM4200 Digital Inputs and Outputs io 28 AA Memory VO Interface ceteri aprieta ienasi agaaa Intra 34 4 1 2 Other Inputs and OUUPUISs 2 cctscecsdsesseesecsbessivensserssocdaseeeonsoteneessdvehassessvevnesscuuteatiwendeuensevsatsebevecs 34 4 2 Serial Communication ii 35 42 Serial Potts utet be tete ete iie ea 35 42 1 1 Usine the Serial PortServer deere ee e pria enne ne ene enge inet rhe rte tene eap eo Resin 36 42 2 Ethernet Poft te prete tirer EE PERREEN ENI e REUS MEER EE RAE be e Eo oae EE E RENE AYER En ERE IO 37 4 2 3 Programming Porti c X 38 2 5 Prosramtinp Cable tenete e ete ue EIER MR PEE UNE 39 4 3 1 Changing Between Program Mode and Run Mode 39 4 3 2 Standalone Operation of the RCM4200 40 User s Manual 4 4 A D Converter RCM4200 only ii 41 44 T A D Converter Power Supply 5 oett i ana aan 43 AD Other Hardware sarai eterne ee ER eR ORE E eee eee sees EEN R SES 44 4 51 Clock Doubler 2 4 eodsacc T RIA RAR elastin um weeks 44 4 5 2 Spectrum Spreader oett center ti eee tete se Mees e E SEP eee e D RE Fe eret bee ee 44 4 6 Memory esee eie eene sea ode Dei 45 COMMI aa ii anali M 45 4 6 2 Flash EPROM 2053s ove AIAR Ia AA ee tape ep queda e EP 45 46 3 Serial Elash cime RT RESET TRU RR ERO ER
42. 6 V and 85 C max 3 0 3 6 V DC 200 typ mA 3 3 V 225 mA 3 6 V and 85 C max Operating Temperature 40 C to 85 C Humidity 5 to 95 noncondensing Coniectois One 2 x 25 1 27 mm pitch IDC signal header One 2 x 5 1 27 mm pitch IDC programming header Board Size 1 84 x 2 42 x 0 84 47 mm x 61 mm x 21 mm User s Manual 91 A 1 1 A D Converter Table A 2 shows some of the important A D converter specifications For more details refer to the ADC7870 data sheet Table A 2 A D Converter Specifications Parameter Test Conditions Typ Max Analog Input Characteristics Input Capacitance 4 9 7 pF Input Impedance Common Mode 6 MQ Differential Mode 7MQ Static Accuracy Resolution Single Ended Mode 11 bits Differential Mode 12 bits Integral Linearity 1 LSB 2 5 LSB Differential Linearity 0 5 LSB Dynamic Characteristics Throughput Rate 52 ksamples s Voltage Reference Accuracy Vier 2 048 V and 2 5 V 0 05 0 25 Buffer Amp Source Current 20 mA Buffer Amp Sink Current 200 uA Short Circuit Current 20 mA 92 RabbitCore RCM4200 A 1 2 Headers The RCM4200 uses a header at J2 for physical connection to other boards J2 is a 2 x 25 SMT header with a 1 27 mm pin spacing J1 the programming port is a 2 x 5 header with a 1 27 mm pin spacing Figure A 3 shows the layout of another board for the RCM4200 to be plugged into These refer
43. CMA200 only Analog reference 49 VREF voltage 50 GND Ground Analog ground 4 1 1 Memory I O Interface The Rabbit 4000 address lines A amp 0 A19 and all the data lines D0 D7 are routed inter nally to the onboard flash memory and SRAM chips I 0 write IOWR and I 0 read IORD are available for interfacing to external devices and are also used by the RCM4200 Parallel Port A can also be used as an external I O data bus to isolate external I O from the main data bus Parallel Port B pins PB2 PB7 can also be used as an auxiliary address bus When using the auxiliary I O bus for any reason you must add the following line at the beginning of your program define PORTA AUX IO required to enable auxiliary I O bus Selected pins on Parallel Ports D and E as specified in Table 2 may be used for input capture quadrature decoder DMA and pulse width modulator purposes 4 1 2 Other Inputs and Outputs The PES PE7 pins can be brought out to header J2 instead of the STATUS and the two SMODE pins SMODEO and SMODEI as explained in Appendix A 6 RESET IN is normally associated with the programming port but may be used as an external input to reset the Rabbit 4000 microprocessor and the RCM4200 memory RESET OUT is an output from the reset circuitry that can be used to reset other peripheral devices 34 RabbitCore RCM4200 4 2 Serial Communication The RCM4200 module does not have any serial d
44. Detected the programming cable may be connected to the wrong COM port a connection may be faulty or the target system may not be powered up First check to see that the power LED on the Prototyping Board is lit If the LED is lit check both ends of the programming cable to ensure that it is firmly plugged into the PC and the programming header on the RCM4200 with the marked colored edge of the programming cable towards pin of the programming header Ensure that the module is firmly and correctly installed in its connectors on the Prototyping Board If Dynamic C appears to compile the BIOS successfully but you then receive a communi cation error message when you compile and load a sample program it is possible that your PC cannot handle the higher program loading baud rate Try changing the maximum download rate to a slower baud rate as follows e Locate the Serial Options dialog in the Dynamic C Options gt Project Options gt Communications menu Select a slower Max download baud rate If a program compiles and loads but then loses target communication before you can begin debugging it is possible that your PC cannot handle the default debugging baud rate Try lowering the debugging baud rate as follows e Locate the Serial Options dialog in the Dynamic C Options gt Project Options gt Communications menu Choose a lower debug baud rate 12 RabbitCore RCM4200 If there are no faults with the hardware check that you have s
45. E DREQO PE6 is the default configuration 39 PE7 STATUS Input Output I O Strobe I7 PWM3 RXA RXE SCLKC DREQI Input Capture PE7 SCLKC is the default configuration 32 RabbitCore RCM4200 Table 2 RCM4200 Pinout Configurations continued Pin Pin Name Default Use Alternate Use Notes 40 47 LNI0 7 Analog Input A D converter RCM4200 only 40 PDO Input Output T O Strobe IO Timer CO D8 INTO SCLKD TCLKF QRDIB 41 PDI Input Output IA6 I O Strobe I1 Timer C1 D9 INTI RXD RCLKF QRDIA Input Capture RCMA210 only 42 PD2 Input Output I O Strobe I2 Timer C2 D10 DREQO TXF SCLKC QRD2B SCLKC see Section 4 2 1 43 PD3 Input Output IA7 I O Strobe I3 Timer C3 DII DREQI RXC RXF QRD2A Input Capture 44 PD4 Input Output T O Strobe I4 D12 PWMO TXB TCLKE 45 PD5 Input Output IA6 I O Strobe I5 D13 PWMI RXB RCLKE Input Capture RCM4210 only User s Manual Table 2 RCM4200 Pinout Configurations continued Pin Pin Name Default Use Alternate Use Notes T O Strobe I6 D14 PWM2 TXA TXE 46 PD6 Input Output IA7 Serial Port E I O Strobe I7 RCM4210 only D15 PWM3 RXA RXE Input Capture 47 PD7 Input Output A D converter 48 CONVERT Digital Input RCM4200 only 1 15 V 2 048 V 2 500 V on chip ref voltage R
46. I 45 Chapter 5 Software Reference 47 5 T More About Dynamic C pente ee ete emper 47 25 2 Dynamic C Function Calls pee ieeesette to eerie traer ie te pee tp aee eet e genet ees 49 5 2 1 Digital UO hahah ei piel ns EL Re ee OUS ee nee 49 23 2 2 Serial Communication Driv ts 5 ete alari irene cao 49 23 2 3 User Block ala AR Ea e ER ene hence ques dere c Ie ei 49 324 SRAM USE reote egi iei cpi rele endete e Bip te ope d votre cp e terere 50 5 29 RCMA200 Cloning i e ttp terme ede te ne RHENO ere retient 50 52 06 Serial Flash rivers r oet ee t eee een eren SE HERPES 51 5 2 7 Prototyping Board Function CallSs i 52 3 2 7 1 Board Inmtialization ete ette eter Pete gene rane pee derer eee EE 22 5127712 ICTS eroe eorr eed it Ee t ee def c e eade 53 5 2 8 Analog Inputs RCM4200 only nennen nene nete nennen enne enn 54 5 3 Upgrading Dynamic Cirio recte tete ve tv eere tebe i Eee ter o ette e tas 71 5 3 1 Add On Modules ster te eh eph Pape nentes die see eri pe E I e 71 Chapter 6 Using the TCP IP Features 73 6 1 TCP IP Connection Srs unie as ee renes tete bec ERE Tee S aaa 73 6 2 TCP IP Primer on P Addresses eH RIINA 75 6 2 IP Addresses Explained ete aaa deed ere UHR TI 6 2 2 How IP Addresses are Used er rrt rte I ee aer Enn eie rerba 78 6 2 3 Dynamically Assigned Internet Addresses ie 79 6 3 Placing Your Device on the Network entente
47. ION Use this function to configure the A D converter This function will address the A D converter chip in Register Mode only and will return an error if you try the Direct Mode Appendix B 4 3 provides additional addressing and command information ADS7870 Signal ADS7870 State RCM4200 Function State LNO Input AINO LNI Input AINI LN2 Input AIN2 LN3 Input AIN3 LN4 Input AIN4 LN5 Input AINS LN6 Input AIN6 LN7 Input AIN7 RESET Input Board reset device RISE FALL Input Pulled up for SCLK active on rising edge 1 00 Input Pulled down I O1 Input Pulled down 1 02 Input Pulled down 1 03 Input Pulled down CONVERT Input Pulled down when not driven BUSY Output PEO pulled down logic high state converter is busy CCLKCNTRL Input Pulled down 0 state sets CCLK as input CCLK Input Pulled down external conversion clock SCLK Input PBO serial data transfer clock SDI Input PC4 3 wire mode for serial data input SDO Output PCS serial data output CS driven ICS Input BUFEN pulled up active low enables serial interface BUFIN Input Driven by VREF VREF Output Connected to BUFIN and BUFOUT BUFOUT Output Driven by VREF 54 RabbitCore RCM4200 analnConfig continued PARAMETERS instructionbyte the instruction byte that will initiate a read or write operation at 8 or 16 bits on the designated register address For example checkid anaInConfig 0x5F 0 96
48. IP settings you entered in the TCP_CONFIG LIB library e PINGLED C This program demonstrates ICMP by pinging a remote host It will flash LEDs DS2 and DS3 on the Prototyping Board when a ping is sent and received e SMTP C This program demonstrates using the SMTP library to send an e mail when the S2 and S3 switches on the Prototyping Board are pressed LEDs DS2 and DS3 on the Prototyping Board will light up when e mail is being sent 84 RabbitCore RCM4200 6 7 Where Do I Go From Here NOTE If you purchased your RCM4200 through a distributor or through a Rabbit partner contact the distributor or partner first for technical support If there are any problems at this point e Use the Dynamic C Help menu to get further assistance with Dynamic C e Check the Rabbit Semiconductor Technical Bulletin Board and forums at www rabbit com support bb and at www rabbit com forums e Use the Technical Support e mail form at www rabbit com support If the sample programs ran fine you are now ready to go on Additional sample programs are described in the Dynamic C TCP IP User s Manual Please refer to the Dynamic C TCP IP User s Manual to develop your own applications An Introduction to TCP IP provides background information on TCP IP and is available on the CD and on our Web site User s Manual 85 86 RabbitCore RCM4200 APPENDIX A RCM4200 SPECIFICATIONS Appendix A provides the specifications for the RCM4200 and desc
49. JP12 PB2 LED DS2 n c PB2 available on header J2 JP13 LNI buffer filter to RCM4200 1 2 Connected 1 2 Connected PB3 to LED DS3 x JP14 PB3 LED DS3 n c PB3 available on header J2 JP15 LN2 buffer filter to RCM4200 1 2 Connected 1 2 Connected PB4 to Switch S2 x JP16 PB4 Switch S2 n c PB4 available on header J2 JP17 LN3 buffer filter to RCMA200 1 2 Connected 1 2 Connected PBS to Switch S3 x JP18 PB5 Switch S3 n c PB5 available on header J2 JP19 LN4 buffer filter to RCM4200 1 2 Connected JP20 LNS buffer filter to RCM4200 1 2 Connected JP21 LN6 buffer filter to RCM4200 1 2 Connected JP22 LN7 buffer filter to RCM4200 1 2 Connected 116 RabbitCore RCM4200 Table B 6 RCM4200 Prototyping Board Jumper Configurations continued Header Description Pins Connected Factory Default 1 2 Tied to analog ground x JP23 LN4 IN LN6 IN 2 3 Tied to VREF 1 2 Tied to analog ground x JP24 LNO IN LN3 IN 2 3 Tied to VREF JP25 Thermistor Location 1 2 n c NOTE Jumper connections JP3 JP10 JP12 JP14 JP16 JP18 JP23 and JP24 are made using 0 Q surface mounted resistors Jumper connections JP11 JP13 JP15 JP17 and JP19 JP22 are made using 470 Q surface mounted resistors User s Manual 117 118 RabbitCore RCM4200 APPENDIX C POWER SUPPLY Appendix C provides information on the current requirements of the RCM4200 and
50. O PE2 PE4 PE6 PDO LNO PD2 LN2 PD4 LN4 PD6 LN6 RRERRERRRERREERRRRGERREEL E 000000000000000000000000 N AGND LNEIN OO LNSIN LN4IN OQ LN3IN LN2IN OO LN1IN LNOIN Analog Inputs Figure B 4 Prototyping Board Pinout The analog signals are brought out to labeled points at header location J3 on the Prototyping Board Although header J3 is unstuffed a 2 x 7 header can be added Note that analog signals are only available from the RCM4200 included in the Development Kit the RCM4210 model does not have an A D converter User s Manual 107 All signals from the RCM4200 module are available on header J2 of the Prototyping Board The remaining ports on the Rabbit 4000 microprocessor are used for RS 232 serial communication Table B 2 lists the signals on header J2 and explains how they are used on the Prototyping Board Table B 2 Use of RCM4200 Signals on the Prototyping Board Pin Pin Name Prototyping Board Use 1 413 3 V 43 3 V power supply 2 GND 3 RST OUT Reset output from reset generator 4 IORD External read strobe 5 IOWR _ External write strobe 6 RESET_IN Input to reset generator 8 15 PAO PA7 Output pulled high 16 PBO CLKB used by A D converter RCM4200 only 17 PBI Programming port CLKA 18 PB2 LED DS2 normally high off 19 PB3 LED DS3 normally high off 20 PB4 Switch S2 normally open pulled
51. Programming Cable WinXP 2K folder double click DPInst exe to install the USB drivers Drivers for other operating systems are available online at www ftdichip com Drivers V CP htm 2 2 4 Step 4 Connect Power Once all the other connections have been made you can connect power to the Prototyping Board If you have the universal AC adapter prepare the AC adapter for the country where it will be used by selecting the appropriate plug Snap in the top of the plug assembly into the slot at the top of the AC adapter as shown in Figure 4 then press down on the plug until it clicks into place Connect the AC adapter to 3 pin header J1 on the Prototyping Board as shown in Figure 4 above The connector may be attached either way as long as it is not offset to one side the center pin of J1 is always connected to the positive terminal and either edge pin is ground Plug in the AC adapter The PWR LED on the Prototyping Board next to the power con nector at J1 should light up The RCM4200 and the Prototyping Board are now ready to be used NOTE A RESET button is provided on the Prototyping Board next to the battery holder to allow a hardware reset without disconnecting power To power down the Prototyping Board unplug the power connector from J1 You should disconnect power before making any circuit adjustments in the prototyping area changing any connections to the board or removing the RCM4200 from the Prototyping Board Use
52. RCM4200 is typically 7 5 uA when no other power is sup plied If a 165 mA h battery is used the battery can last about 2 5 years 165 mAh 2 5 vears 7 55 pA ui it The actual battery life in your application will depend on the current drawn by components not on the RCM4200 and on the storage capacity of the battery The RCM4200 does not drain the battery while it is powered up normally Cycle the main power off on after you install a backup battery for the first time and when ever you replace the battery This step will minimize the current drawn by the real time clock oscillator circuit from the backup battery should the RCM4200 experience a loss of main power NOTE Remember to cycle the main power off on any time the RCM4200 is removed from the Prototyping Board or motherboard since that is where the backup battery would be located Rabbit Semiconductor s Technical Note TN235 External 32 768 kHz Oscillator Circuits provides additional information about the current draw by the real time clock oscillator circuit C 1 2 Battery Backup Circuit Figure C 2 shows the battery backup circuit External Battery D1 R16 VBAT EXT gt Figure C 2 RCM4200 Backup Battery Circuit The battery backup circuit serves three purposes e It reduces the battery voltage to the SRAM and to the real time clock thereby limiting the current consumed by the real time clock and lengthening the battery life e Jt ensures that current
53. a given value or save user specified text to a selected page 18 RabbitCore RCM4200 3 2 2 Serial Communication The following sample programs are found in the SAMPLES RCM4200 SERIAL folder e FLOWCONTROL C This program demonstrates how to configure Serial Port D for CTS RTS flow control with serial data coming from Serial Port C TxC at 115 200 bps The serial data received are displayed in the STDIO window To set up the Prototyping Board you will need to tie TxD and RxD together on the RS 232 header at J4 and you will also tie TxC and Rt Uc RxC together using the jumpers supplied in the Development Kit as aldo o shown in the diagram A repeating triangular pattern should print out in the STDIO window The program will periodically switch flow control on or off to demonstrate the effect of flow control If you have two Prototyping Boards with modules run this sample program on the sending board then disconnect the programming cable and reset the sending board so that the module is operating in the Run mode Connect TxC TxD and GND on the sending board to RxC RxD and GND on the other board then with the programming cable attached to the other module run the sample program e PARITY C This program demonstrates the use of parity modes by repeatedly sending byte values 0 127 from Serial Port C to Serial Port D DO The program will switch between generating parity or not on Serial Es LE
54. adapter 12 V DC 1 A includes Canada Japan U S Australia N Z U K and European style plugs Development Kits sold in North America may contain an AC adapter with only a North American style plug USB programming cable with 10 pin header 10 pin header to DB9 serial cable Dynamic C CD ROM with complete product documentation on disk Getting Started instructions A bag of accessory parts for use on the Prototyping Board Rabbit 4000 Processor Easy Reference poster Registration card Programming Cable Ba 6 amp Universal AC Adapter 17 with Plugs o EMEN Accessory Parts for Prototyping Board RabbitCore RCM4200 Getting Started Prototyping Board Instructions Figure 1 RCM4200 Development Kit User s Manual 1 3 2 Software The RCM4200 is programmed using version 10 09 or later of Dynamic C A compatible version is included on the Development Kit CD ROM Rabbit Semiconductor also offers add on Dynamic C modules containing the popular uC OS II real time operating system the FAT file system as well as PPP Advanced Encryption Standard AES and other select libraries In addition to the Web based technical support included at no extra charge a one year telephone based technical support module is also available for purchase Visit our Web site
55. adings for the A D converter inputs Table A 7 A D Converter Inputs Parameter Value Input Capacitance 4 9 7 pF Common Mode 6 MQ Input Impedance Differential 7 MQ User s Manual 95 Figure A 4 shows a typical timing diagram for the Rabbit 4000 microprocessor external I O read and write cycles External I O Read no extra wait states k T1 gt lt Tw gt lt T2 gt m EN A 15 0 Tadr Sx TT TN Tosx Tes NOC Sie Tlocsx Tiocs 7 NORD TioRD TioRD 3 BUFEN TBUFEN TBUFEN gt setup lt D 7 0 hold External I O Write no extra wait states lt T1 gt lt Tw gt lt T2 gt ed EE E A 15 0 Tadr ICS lw DAT csx Tes NOCSx X T TS XK 71 Tiocsx Tiocsx gt IIOWR das TBUFEN TBUFEN D 7 0 Tpuzv Tpvuz Figure A 4 External I O Read and Write Cycles No Extra Wait States NOTE IOCSx can be programmed to be active low default or active high 96 RabbitCore RCM4200 Table A 8 lists the delays in gross memory access time for several values of VDDjo Table A 8 Preliminary Data and Clock Delays Clock to Address Worst Case UE Output Delay Data Setup Spectrum Spreader Delay va ns Time Delay ns e ns 0 5 ns setting 1 ns setting 2 ns setting SOPH i BOPE ESI no dbl dbl nodbl dbl no dbl dbl 3 3 6 8 11 1 2 3 2 3 3 4 5 4 5 9 1 8 18 24 33 3 71 6 5 8 12
56. and Run Mode The RCM4200 is automatically in Program Mode when the PROG connector on the pro gramming cable is attached and is automatically in Run Mode when no programming cable is attached When the Rabbit 4000 is reset the operating mode is determined by the status of the SMODE pins When the programming cable s PROG connector is attached the SMODE pins are pulled high placing the Rabbit 4000 in the Program Mode When the programming cable s PROG connector is not attached the SMODE pins are pulled low causing the Rabbit 4000 to operate in the Run Mode RESET RCM4200 when changing mode Press RESET button if using Prototyping Board OR Cycle power off on after removing or attaching programming cable 3 pin power connector Programming Cable Colored edge ar iL O OOOO Q o O o o Q eoa ep zz il e lo Q gt eo O O A 000000 09000 00GO0C OO ri Ga 00 oo oO a iO O GIO O DIO ORO O ee Lm O 0000000000000000000 00000000000000000 0000000000000000 9900000000 00 oo oo oooooooOoOOOOOOOOO0O0O0O0O0000 oO O O a i pi al Figure 9 Switching Between Program Mode and Run Mode User s Manual 39 A pr
57. as 10 V The RS 232 transceiver also provides the proper line loading for reliable communication RS 232 can be used effectively at the RCM4200 module s maximum baud rate for distances of up to 15 m RS 232 flow control on an RS 232 port is initiated in software using the serX 1owcon trolon function call from RS232 LIB where X is the serial port C or D The locations of the flow control lines are specified using a set of five macros SERX RTS PORT Data register for the parallel port that the RTS line is on e g PCDR SERA RTS SHADOW Shadow register for the RTS line s parallel port e g PCDRShadow SERA RTS BIT The bit number for the RTS line SERA CTS PORT Data register for the parallel port that the CTS line is on e g PCDRShadow SERA CTS BIT The bit number for the CTS line Standard 3 wire RS 232 communication using Serial Ports C and D is illustrated in the following sample code define CINBUFSIZE 15 set size of circular buffers in bytes define COUTBUFSIZE 15 define DINBUFSIZE 15 define DOUTBUFSIZE 15 define MYBAUD 115200 set baud rate endif main serCopen MYBAUD open Serial Ports C and D serDopen MYBAUD serCwrFlush flush their input and transmit buffers serCrdFlush serDwrFlush serDrdFlush serCclose MYBAUD close Serial Ports C and D serDclose MYBAUD 114 RabbitCore RCM4200 B 5 Prototyping Board Jumper Configurations Figure B 8 shows the header
58. at www rabbit com or contact your Rabbit Semiconductor sales representative or authorized distributor for further information 1 3 3 Online Documentation The online documentation is installed along with Dynamic C and an icon for the docu mentation menu is placed on the workstation s desktop Double click this icon to reach the menu If the icon is missing use your browser to find and load default htm in the docs folder found in the Dynamic C installation folder The latest versions of all documents are always available for free unregistered download from our Web sites as well 6 RabbitCore RCM4200 2 GETTING STARTED This chapter describes the RCM4200 hardware in more detail and explains how to set up and use the accompanying Prototyping Board NOTE This chapter and this manual assume that you have the RCM4200 Development Kit If you purchased an RCM4200 module by itself you will have to adapt the infor mation in this chapter and elsewhere to your test and development setup 2 1 Install Dynamic C To develop and debug programs for the RCM4200 series of modules and for all other Rabbit Semiconductor hardware you must install and use Dynamic C If you have not yet installed Dynamic C version 10 09 or a later version do so now by inserting the Dynamic C CD from the Development Kit in your PC s CD ROM drive If autorun is enabled the CD installation will begin automatically If autorun is disabled or the installa
59. attery backup battery life 120 CirCult rie rore isaer 120 external battery connec 8 0 1 119 real time clock 120 reset generator 121 use of battery backed SRAM Self I n eeu 50 board initialization function calls 52 brdInit 52 bus loading 95 C clock doubler 44 Cloning oes 50 conformal coating 98 D Development Kits 5 RCMA200 Development Kit 5 AC adapter 5 Getting Started instruc DU NM 5 programming cable 5 digital VO iier 28 function calls 49 digInAlert 53 timedAlert 53 TO buffer sourcing and sinking limits 95 memory interface 34 SMODEO 34 38 SMODEI 34 38 dimensions Prototyping Board 105 RCMA200 sse 88 Dynamic C 6 7 12 47 add on modules 7 71 installation 7 battery backed SRAM 50 libraries RCM40xx LIB 52 protected variables 50 sample programs 16 standard features debugging 48 telephone based technical support 6 71 upgrades and patches 71 USB
60. ble on Prototyping Board User s Manual 67 anaInEERd continued gaincode the gain code of 0 to 7 The gaincode parameter is ignored when channel is ALLCHAN Gain Code Bet else Renee 0 x1 0 22 5 1 x2 0 11 25 2 x4 0 5 6 3 x5 0 4 5 4 x8 0 2 8 5 x10 0 2 25 6 x16 0 1 41 7 x20 0 1 126 Applies to Prototyping Board RETURN VALUE O 1f successful if address is invalid or out of range SEE ALSO analnEEWr analnCalib 68 RabbitCore RCM4200 anaInEEWr int anaInEEWr unsigned int channel int opmode unsigned int gaincode DESCRIPTION Writes the calibration constants gain and offset for an input based from global tables _adcCalibS adcCalibD and adcCalibMto designated positions in the flash memory Depending on the flash size the following macros can be used to identify the starting address for these locations ADC CALIB ADDRS address start of single ended analog input channels ADC CALIB ADDRD address start of differential analog input channels ADC CALIB ADDRM address start of milliamp analog input channels NOTE This function cannot be run in RAM PARAMETER channel the channel number 0 to 7 corresponding to LNO to LN7 opmode the mode of operation SINGLE single ended input DIFF differential input mAMP 4 20 mA input channel SINGLE DIFF mAMP 0 AINO AINO AINI AINO 1 AINI AIN1 AINO
61. d RS 232 Header SMT Prototyping Area 102 RabbitCore RCM4200 B 1 1 Prototyping Board Features Power Connection A a 3 pin header is provided for connection to the power supply Note that the 3 pin header is symmetrical with both outer pins connected to ground and the center pin connected to the raw V input The cable of the AC adapter provided with the North American version of the Development Kit is terminated with a header plug that connects to the 3 pin header in either orientation The header plug leading to bare leads provided for overseas customers can be connected to the 3 pin header in either orientation Users providing their own power supply should ensure that it delivers 8 24 V DC at 8 W The voltage regulators will get warm while in use Regulated Power Supply The raw DC voltage provided at the 3 pin header is routed to a 5 V switching voltage regulator then to a separate 3 3 V linear regulator The regulators provide stable power to the RCM4200 module and the Prototyping Board Power LED The power LED lights whenever power is connected to the Prototyping Board Reset Switch A momentary contact normally open switch is connected directly to the RCMA200 s RESET IN pin Pressing the switch forces a hardware reset of the system I O Switches and LEDs Two momentary contact normally open switches are con nected to the PB4 and PBS pins of the RCM4200 module and may be read as inputs by sample applicati
62. d edge perl mr C Q ea Qu 2 Ss lo EO O A OOOOO0O0000 ZEN ae Q i 2000000000000000000000 OOO000D00 C000 EL 0000 Ge 0 uen ar TLIUTRTLI iO 0 GIO O DIO ORO O c ce mp ERERERREERERERSEERSREREIS fee ESSEEN 535552 n z DS e TEI erorerorore o i O dooddob0 0000000 00000000 Figure 4 Connect Programming Cable and Power Supply NOTE Never disconnect the programming cable by pulling on the ribbon cable Carefully pull on the connector to remove it from the header NOTE Fither a serial or a USB programming cable was supplied with the Development Kit If you have a serial programming cable an RS 232 USB converter Rabbit Part No 20 151 0178 is available to allow you to use the serial programming cable with a USB port Depending on the programming cable connect the other end to a COM port or a USB port on your PC 10 RabbitCore RCM4200 If you are using a USB programming cable your PC should recognize the new USB hard ware and the LEDs in the shrink wrapped area of the programming cable will flash if you get an error message you will have to install USB drivers Drivers for Windows XP are available in the Dynamic C Drivers Rabbit USB
63. d start it running under Dynamic C The crossover cable is connected from your computer s Ethernet adapter to the RCM4200 module s RJ 45 Ethernet connector When the program starts running the green LINK light on the RCM4200 module should be on to indicate an Ethernet connection is made Note If the LINK light does not light you may not be using a crossover cable or if you are using a hub with straight through cables perhaps the power is off on the hub The next step is to ping the module from your PC This can be done by bringing up the MS DOS window and running the pingme program ping 10 10 6 101 or by Start gt Run and typing the entry ping 10 10 6 101 The ping routine will ping the module four times and write a summary message on the screen describing the operation 6 6 Running Additional Sample Programs With Direct Connect The following sample programs are in the Dynamic C SAMPLES RCM4200 TCPIP folder e BROWSELED C This program demonstrates a basic controller running a Web page Two device LEDs are created along with two buttons to toggle them Users can use their Web browser to change the status of the lights The DS2 and DS3 LEDs on the Prototyping Board will match those on the Web page As long as you have not modified the TCPCONFIG 1 macro in the sample program enter the following server address in your Web browser to bring up the Web page served by the sample program http 10 10 6 100 Otherwise use the TCP
64. d write functions allow you to customize the parallel I O to meet your specific needs For example use WrPortI PEDDR amp PEDDRShadow 0x00 to set all the Port E bits as inputs or use WrPortI PEDDR amp PEDDRShadow OxFF to set all the Port E bits as outputs When using the auxiliary I O bus on the Rabbit 4000 chip add the line define PORTA AUX IO required to enable auxiliary I O bus to the beginning of any programs using the auxiliary I O bus The sample programs in the Dynamic C SAMPLES RCM4200 folder provide further examples 5 2 2 Serial Communication Drivers Library files included with Dynamic C provide a full range of serial communications sup port The RS232 LIB library provides a set of circular buffer based serial functions The PACKET LIB library provides packet based serial functions where packets can be delimited by the 9th bit by transmission gaps or with user defined special characters Both libraries provide blocking functions which do not return until they are finished transmitting or receiving and nonblocking functions which must be called repeatedly until they are fin ished allowing other functions to be performed between calls For more information see the Dynamic C Function Reference Manual and Technical Note TN213 Rabbit Serial Port Software 5 2 3 User Block Certain function calls involve reading and storing calibration constants from to the simulated EEPROM in flash memory located at
65. ded to use the serial flash The FAT file system function calls are in the Dynamic C LIB FileSystem FAT CONFIG LIB library User s Manual 51 5 2 7 Prototyping Board Function Calls The functions described in this section are for use with the Prototyping Board features The source code is in the Dynamic C LIB RCM4xxx RCM42xx LIB library if you need to modify it for your own board design NOTE The analog input function calls are supported only by the RCM4200 model since the RCM4210 does not have an A D converter The sample programs in the Dynamic C SAMPLES RCM4200 folder illustrate the use of the function calls Other generic functions applicable to all devices based on Rabbit microprocessors are described in the Dynamic C Function Reference Manual 5 2 7 1 Board Initialization brdInit void brdInit void DESCRIPTION Call this function at the beginning of your program This function initializes Parallel Ports A through E for use with the Prototyping Board and on the RCM4200 model loads the stored calibration constants for the A D converter This function call is intended for demonstration purposes only and can be modified for your applications Summary of Initialization 1 I O port pins are configured for Prototyping Board operation Unused configurable I O are set as tied outputs RS 232 is not enabled LEDs are off U A N The slave port is disabled RETURN VALUE None 52 RabbitCore RCM4200
66. demonstrating various uses of TCP IP for networking embedded systems These programs require you to connect your PC and the RCM4200 module together on the same network This network can be a local private net work preferred for initial experimentation and debugging or a connection via the Internet RCM4200 System RCM4200 System User s PC lt A Ethernet crossover Doe To additional cable network Direct Connection Mor CUPIS network of 2 computers Direct Connection Using a Hub User s Manual 81 6 4 1 How to Set IP Addresses in the Sample Programs With the introduction of Dynamic C 7 30 we have taken steps to make it easier to run many of our sample programs You will see a TCPCONFIG macro This macro tells Dynamic C to select your configuration from a list of default configurations You will have three choices when you encounter a sample program with the TCPCONFIG macro 1 You can replace the TCPCONFIG macro with individual MY IP ADDRESS MY NET MASK MY GATEWAY and MY NAMESERVER macros in each program You can leave TCPCONFIG at the usual default of 1 which will set the IP configurations to 10 10 6 100 the netmask to 255 255 255 0 and the nameserver and gateway to 10 10 6 1 If you would like to change the default values for example to use an IP address of 10 1
67. devices based on the Rabbit microprocessor Chapter 5 describes the libraries and function calls related to the RCM4200 5 1 More About Dynamic C Dynamic C has been in use worldwide since 1989 It is specially designed for program ming embedded systems and features quick compile and interactive debugging A com plete reference guide to Dynamic C is contained in the Dynamic C User s Manual You have a choice of doing your software development in the flash memory or in the static SRAM included on the RCM4200 The flash memory and SRAM options are selected with the Options gt Program Options gt Compiler menu The advantage of working in RAM is to save wear on the flash memory which is limited to about 100 000 write cycles The disadvantage is that the code and data might not both fitin RAM NOTE An application can be compiled directly to the battery backed data SRAM on the RCM4200 module but should be run from the fast SRAM after the serial programming cable is disconnected Your final code must always be stored in flash memory for reliable operation RCM4200 modules have a fast program execution SRAM that is not battery backed Select Code and BIOS in Flash Run in RAM from the Dynamic C Options gt Project Options gt Compiler menu to store the code in flash and copy it to the fast program execution SRAM at run time to take advantage of the faster clock speed This option optimizes the performance of RCM4200 modules running at 58 98
68. displayed in the Dynamic C STDIO window The sample program is targeted specifically for the thermistor included with the Development Kit with Ro 25 C 3 KQ and B 25 85 3965 Be sure to use the applicable R and p values for your thermistor if you use another thermistor EVREG Inline jumper is 470 Q resistor 3 1kQ TA LN7_IN ADC y RCM4200 mE 2 2 nF AGND 2e A JP25 i 338383393 O Thermistor Figure B 7 Prototyping Board Thermistor Input B 4 3 3 A D Converter Calibration To get the best results form the A D converter it is necessary to calibrate each mode single ended or differential for each of its gains It is imperative that you calibrate each of the A D converter inputs in the same manner as they are to be used in the application For example if you will be performing floating differential measurements or differential mea surements using a common analog ground then calibrate the A D converter in the corre sponding manner The calibration must be done with the JP23 JP24 selection jumpers in the desired position see Figure B 6 If a calibration is performed and a jumper is subse quently moved the corresponding input s must be recalibrated The calibration table in software only holds calibration constants based on mode channel and gain Other factors affecting the calibration must be taken into account by calibrating using the same mode and gain setup as i
69. e run the sample program Once you have compiled and run this program you can test flow control by disconnecting TxD from RxD as before while the program is running Since the J4 header locations on the two Prototyping Boards are connected with wires there are no slip on jumpers at J4 on either Prototyping Board e SWITCHCHAR C This program demonstrates transmitting and then receiving an ASCII string on Serial Ports C and D It also displays the serial data received from both ports in the STDIO window To set up the Prototyping Board you will need to tie TxD and RxC together on the RS 232 header at J4 and you will also tie RxD and RxC_TxC TxC together using the jumpers supplied in the Development Kit as OE shown in the diagram si Once you have compiled and run this program press and release switches S2 and S3 on the Prototyping Board The data sent between the serial ports will be displayed in the STDIO window 20 RabbitCore RCM4200 e IOCONFIG_SWITCHECHO C This program demonstrates how to set up Serial Port E which then transmits and then receives an ASCII string when switch S2 is pressed The echoed serial data are displayed in the Dynamic C STDIO window Note that the I O lines that carry the Serial Port E signals are not the Rabbit 4000 defaults The Serial Port E I O lines are configured by calling the library function serEconfig that was generated by the Rabbit 4000 IOCONFIG EXE utility pro gram Seria
70. e Rabbit 4000 microprocessor used in the RCM4200 are configurable and so the factory defaults can be reconfigured Table 2 lists the Rabbit 4000 factory defaults and the alternate configurations User s Manual 29 Table 2 RCM4200 Pinout Configurations Pin Pin Name Default Use Alternate Use Notes 1 3 3 V_IN 2 GND Reset output from Reset 3 RES_OUT Reset output Reset input Generator or external reset input 4 NORD Output External I O read strobe 5 IOWR Output External I O write strobe 6 RESET IN Input Input to Reset Generator 7 VBAT EXT Battery input Slave port data bus SD0 SD7 8 15 PA 0 7 Input Output External I O data bus ID0 1D7 SCLKB SCLKB used by RCM4200 16 PBO Input Output A D converter see External I O Address IA6 Section 4 2 1 SCLKA 17 PBI Input Output Programming port CLKA External I O Address IA7 18 PB2 Input Output 2 uibus d External O Address IAO 19 PB3 Input Output PRU iti External I O Address IA1 SAO 20 PB4 Input Output External I O Address IA2 21 PB5 Input Output ia DILE External O Address IA3 ISCS 22 PB I tput i ome External I O Address IA4 SLAVATN 23 PB7 Input Output External I O Address IA5 30 RabbitCore RCM4200 Table 2 RCM4200 Pinout Configurations continued Pin Pin Name Default Use Alternate Use Notes 24 PCO Input Output TXD T O Strobe IO Timer CO TCLKF 25 PCI
71. e able to run the sample programs with out having to setup a direct connection between your computer and the RCM4200 You will also need the IP address of the nameserver the name or IP address of your mail server and your domain name for some of the sample programs 76 RabbitCore RCM4200 6 2 1 IP Addresses Explained IP Internet Protocol addresses are expressed as 4 decimal numbers separated by periods for example 216 103 126 155 10 1 1 6 Each decimal number must be between 0 and 255 The total IP address is a 32 bit number consisting of the 4 bytes expressed as shown above A local network uses a group of adja cent IP addresses There are always 2 IP addresses in a local network The netmask also called subnet mask determines how many IP addresses belong to the local network The netmask is also a 32 bit address expressed in the same form as the IP address An example netmask is 255 255 255 0 This netmask has 8 zero bits in the least significant portion and this means that 28 addresses are a part of the local network Applied to the IP address above 216 103 126 155 this netmask would indicate that the following IP addresses belong to the local network 216 103 126 0 216 103 126 1 216 103 126 2 etc 216 103 126 254 216 103 126 255 The lowest and highest address are reserved for special purposes The lowest address 216 102 126 0 is used to identify the local network The highest address 216 102 126 255 is u
72. e analog input channel ADTIMEOUT 4095 if the conversion is incomplete or busy bit timeout ADOVERFLOW 4096 for overflow or out of range SEE ALSO anaInCalib anaIn anaInVolts 66 RabbitCore RCM4200 anaInEERd root int anaInEERd unsigned int channel unsigned int opmode unsigned int gaincode DESCRIPTION Reads the calibration constants gain and offset for an input based on their designated position in the flash memory and places them into global tables adcCalibs adcCalibD and adcCalibM for analog inputs Depending on the flash size the following macros can be used to identify the starting address for these locations ADC CALIB ADDRS address start of single ended analog input channels ADC CALIB ADDRD address start of differential analog input channels ADC CALIB ADDRM address start of milliamp analog input channels NOTE This function cannot be run in RAM PARAMETER channel the channel number 0 to 7 corresponding to LNO to LN7 opmode the mode of operation SINGLE single ended input DIFF differential input mAMP 4 20 mA input channel SINGLE DIFF mAMP 0 AINO AINO AINI AINO 1 AIN1 AIN1 AINO AIN1 2 AIN2 AIN2 AIN3 AIN2 3 AIN3 AIN3 AIN2 AIN3 4 AIN4 AIN4 AINS AIN4 5 AIN5 AINS AINA AIN5 6 AIN6 AIN6 AIN7 AIN6 7 AIN7 AIN7 AIN6 AIN7 ALLCHAN read all channels for selected opmode Not accessi
73. egative voltages but the differential mode described below may be used to measure negative voltages Differential measurements require two channels As the name differential implies the dif ference in voltage between the two adjacent channels is measured rather than the differ ence between the input and analog ground Voltage measurements taken in differential mode have a resolution of 12 bits with the 12th bit indicating whether the difference is positive or negative The A D converter chip can only accept positive voltages as explained in Section 4 4 Both differential inputs must be referenced to analog ground and both inputs must be positive with respect to analog ground Table B 4 provides the differential voltage ranges for this setup Table B 4 Differential Voltage Ranges Min Differential Max Differential Voltage with Gain A D Converter Resolution Voltage gr 5 prescaler Multiplier Actual Gain mV V V 0 22 528 x1 1 11 0 11 264 x2 1 8 5 5 0 5 632 x4 3 6 2 75 0 4 506 x5 4 5 2 20 0 2 816 x8 12 1 375 0 2 253 x10 9 0 1 100 0 1 408 x16 14 4 0 688 0 1 126 x20 18 0 550 User s Manual 111 B 4 3 2 Thermistor Input Analog input LN7_IN on the Prototyping Board was designed specifically for use with a thermistor at JP25 in conjunction with the THERMISTOR C sample program which demon strates how to use the analog input to measure temperature which will be
74. elected the correct COM port within Dynamic C as explained for the USB port above Press lt Ctrl Y gt to force Dynamic C to recompile the BIOS If Dynamic C still reports it is unable to locate the target system repeat the above steps for another available COM port You should receive a Bios compiled successfully message once this step is completed successfully 2 4 Where Do I Go From Here If the sample program ran fine you are now ready to go on to the sample programs in Chapter 3 and to develop your own applications The sample programs can be easily modified for your own use The user s manual also provides complete hardware reference information and software function calls for the RCM4200 series of modules and the Prototyping Board For advanced development topics refer to the Dynamic C User s Manual also in the online documentation set 2 4 1 Technical Support NOTE If you purchased your RCM4200 through a distributor or through a Rabbit partner contact the distributor or partner first for technical support If there are any problems at this point e Use the Dynamic C Help menu to get further assistance with Dynamic C e Check the Rabbit Semiconductor Technical Bulletin Board and forums at www rabbit com support bb and at www rabbit com forums e Use the Technical Support e mail form at www rabbit com support User s Manual 13 14 RabbitCore RCM4200 3 RUNNING SAMPLE PROGRAMS To develop and debug program
75. ence design values are relative to one of the mounting holes RCM4200 Series Footprint 0 334 0 72 0 62 8 5 7T 18 di 16 LY Figure A 3 User Board Footprint for RCM4200 User s Manual 93 A 2 Rabbit 4000 DC Characteristics Table A 3 Rabbit 4000 Absolute Maximum Ratings Symbol Parameter Maximum Rating Ta Operating Temperature 40 to 85 C Ts Storage Temperature 55 to 125 C Vin Maximum Input Voltage peo 2 VDDjo Maximum Operating Voltage 3 6V Stresses beyond those listed in Table A 3 may cause permanent damage The ratings are stress ratings only and functional operation of the Rabbit 4000 chip at these or any other conditions beyond those indicated in this section is not implied Exposure to the absolute maximum rating conditions for extended periods may affect the reliability of the Rabbit 4000 chip Table A 4 outlines the DC characteristics for the Rabbit 4000 at 3 3 V over the recom mended operating temperature range from T4 40 C to 85 C VDDro 3 0 V to 3 6 V Table A 4 3 3 Volt DC Characteristics Symbol Parameter Min Typ Max I O Ring Supply Voltage 3 3 V 3 0 V 3 3 V 3 6 V VDDro T O Ring Supply Voltage 1 8 V 1 65 V 1 8 V 1 90 V High Level Input Voltage Vin VDDyo 3 3 V ZON Low Level Input Voltage Yi VDDyjo 3 3 V oy High Level Output Voltage Vou VDDyo 3 3 V ZAN Low Leve
76. eral purpose I O lines configurable with up to four alternate functions 3 3 V I O lines with low power modes down to 2 kHz Up to six CMOS compatible serial ports four ports are configurable as a clocked serial ports SPI and two ports are configurable as SDLC HDLC serial ports Combinations of up to eight single ended or four differential 12 bit analog inputs RCM4200 only Alternate I O bus can be configured for 8 data lines and 6 address lines shared with parallel I O lines I O read write 512K flash memory 512K SRAM and a fixed mass storage flash memory option that may be used with the standardized directory structure supported by the Dynamic C FAT File System module Real time clock Watchdog supervisor RabbitCore RCM4200 There are two RCM4200 production models Table 1 summarizes their main features Table 1 RCM4200 Features mass data storage 8 Mbytes serial flash Feature RCM4200 RCM4210 Microprocessor Rabbit 4000 at 58 98 MHz Rabbit 4000 at 29 49 MHz Data SRAM 512K a 512K _ Flash Memory program 512K Flash Memory 4 Mbytes serial flash A D Converter 12 bits Serial Ports 4 high speed CMOS compatible ports all 4 configurable as asynchro nous with IrDA 4 as clocked serial SPI asynchronous clocked serial port shared with programming port 1 clocked serial port shared with serial flash 1 clocked serial port shared with
77. et cables and a 10Base T Ethernet hub are available from Rabbit Semiconductor in a TCP IP tool kit More information is available at www rabbit com Now you should be able to make your connections User s Manual 73 Connect the AC adapter and the serial programming cable as shown in Chapter 2 Get ting Started Ethernet Connections There are four options for connecting the RCM4200 module to a network for develop ment and runtime purposes The first two options permit total freedom of action in selecting network addresses and use of the network as no action can interfere with other users We recommend one of these options for initial development No LAN The simplest alternative for desktop development Connect the RCM4200 module s Ethernet port directly to the PC s network interface card using an RJ 45 crossover cable A crossover cable is a special cable that flips some connections between the two connectors and permits direct connection of two client systems A standard RJ 45 network cable will not work for this purpose Micro LAN Another simple alternative for desktop development Use a small Eth ernet 10Base T hub and connect both the PC s network interface card and the RCM4200 module s Ethernet port to it using standard network cables The following options require more care in address selection and testing actions as conflicts with other users servers and systems can occur LAN Connect t
78. g ground User s Manual 41 If a device such as a battery is connected across two channels for a differential measurement and it is not referenced to analog ground then the current from the device will flow through both sets of attenuator resistors without flowing back to analog ground as shown in Figure 11 This will generate a negative voltage at one of the Figure 11 Current Flow from Ungrounded or Floating Source inputs LN1 which will almost certainly lead to inaccurate A D conversions To make such differential measurements connect the R1 resistors to the A D converter s internal reference voltage which is software configurable for 1 15 V 2 048 V or 2 5 V This internal reference voltage is available on pin 49 of header J2 as VREF and allows you to convert analog input voltages that are negative with respect to analog ground NOTE The amplifier inside the A D converter s internal voltage reference circuit has a very limited output current capability The internal buffer can source up to 20 mA and sink only up to 200 pA Use a separate buffer amplifier if you need to supply any load current The A D converter s CONVERT pin is available on pin 48 of header J2 and can be used as a hardware means of forcing the A D converter to start a conversion cycle at a specific time The CONVERT signal is an edge triggered event and has a hold time of two CCLK periods for debounce A conversion is s
79. ge from 2 V to 2 V differential mode or from 0 V to 2 V single ended mode Use a resistor divider such as the one shown in Figure 10 to measure voltages above 2 V on the analog inputs LN1 3 BVREF eae jc 1 AGND E RO ADC LNO NAN y RCM4200 ANN RO Figure 10 Resistor Divider Network for Analog Inputs The RI resistors are typically 20 KQ to 100 KQ with a lower resistance leading to more accuracy but at the expense of a higher current draw The RO resistors would then be 180 kQ to 900 KQ for a 10 1 attenuator The capacitor filters noise pulses on the A D converter input The actual voltage range for a signal going to the A D converter input is also affected by the 1 2 4 5 8 10 16 and 20 V V software programmable gains available on each channel of the ADS7870 A D converter Thus you must scale the analog signal with an attenuator circuit and a software programmable gain so that the actual input presented to the A D converter is within the range limits of the ADS7870 A D converter chip 2 V to 2 V or 0 V to 2 V The A D converter chip can only accept positive voltages With the R1 resistors connected to ground your analog circuit is well suited to perform positive A D conversions When the RI resistors are tied to ground for differential measurements both differential inputs must be referenced to analog ground and both inputs must be positive with respect to analo
80. h memory for mass storage Each production model has a Development Kit with the essentials that you need to design your own microprocessor based system and includes a complete Dynamic C software development sys tem The Development Kits also contains a Prototyping Board that will allow you to evaluate the specific RCM4200 module and to prototype circuits that interface to the module You will also be able to write and test software for the RCM4200 modules Throughout this manual the term RCM4200 refers to the complete series of RCM4200 RabbitCore modules unless other production models are referred to specifically The RCM4200 has a Rabbit 4000 microprocessor operating at up to 58 98 MHz static RAM flash memory serial flash mass storage option an 8 channel A D converter two clocks main oscillator and timekeeping and the circuitry necessary for reset and man agement of battery backup of the Rabbit 4000 s internal real time clock and 512K of static RAM One 50 pin header brings out the Rabbit 4000 I O bus lines parallel ports A D converter channels and serial ports The RCM4200 receives its 3 3 V power from the customer supplied motherboard on which it is mounted The RCM4200 can interface with all kinds of CMOS compatible digital devices through the motherboard User s Manual 1 1 RCM4200 Features Small size 1 84 x 2 42 x 0 84 47 mm x 61 mm x 21 mm Microprocessor Rabbit 4000 running at up to 58 98 MHz Up to 33 gen
81. hannel SINGLE DIFF mAMP 0 AINO AINO AINI AINO 1 AIN1 AINI AINO AIN1 2 AIN2 AIN2 AIN3 AIN2 3 AIN3 AIN3 AIN2 AIN3 4 AIN4 AIN4 AINS AIN4 5 AINS AINS AIN4 AINS 6 AIN6 AIN6 AIN7 AIN6 7 AIN7 AIN7 AIN6 AIN7 Not accessible on Prototyping Board gaincode the gain code of 0 to 7 applies only to Prototyping Board Gain Code multipli MS 0 x1 0 22 5 1 x2 0 11 25 2 x4 0 5 6 3 x5 0 4 5 4 x8 0 2 8 5 x10 0 2 25 6 x16 0 1 41 7 x20 0 1 126 58 RabbitCore RCM4200 analn continued RETURN VALUE A value corresponding to the voltage on the analog input channel 0 2047 for single ended conversions 2048 2047 for differential conversions ADTIMEOUT 4095 if the conversion is incomplete or busy bit timeout ADOVERFLOW 4096 for overflow or out of range SEE ALSO anaIn anaInConfig anaInDriver User s Manual 59 anaInCalib int anaInCalib int channel int opmode int gaincode int valuel float voltsl int value2 float volts2 DESCRIPTION Calibrates the response of the desired A D converter channel as a linear function using the two conversion points provided Four values are calculated and placed into global tables adcCalibS adcCalibD and adcCalibMto be later stored into simulat ed EEPROM using the function ana InEEWr Each channel will have a linear con stant and a voltage offset
82. he RCM4200 module s Ethernet port to an existing LAN preferably one to which the development PC is already connected You will need to obtain IP addressing information from your network administrator WAN The RCM4200 is capable of direct connection to the Internet and other Wide Area Networks but exceptional care should be used with IP address settings and all network related programming and development We recommend that development and debugging be done on a local network before connecting a RabbitCore system to the Internet TIP Checking and debugging the initial setup on a micro LAN is recommended before connecting the system to a LAN or WAN The PC running Dynamic C does not need to be the PC with the Ethernet card Apply Power Plug in the AC adapter The RCM4200 module and Prototyping Board are now ready to be used RabbitCore RCM4200 6 2 TCP IP Primer on IP Addresses Obtaining IP addresses to interact over an existing operating network can involve a num ber of complications and must usually be done with cooperation from your ISP and or network systems administrator For this reason it is suggested that the user begin instead by using a direct connection between a PC and the RCM4200 using an Ethernet crossover cable or a simple arrangement with a hub A crossover cable should not be confused with regular straight through cables In order to set up this direct connection the user will have to use a PC without ne
83. he state of a single ended analog input channel and uses the previously set calibration constants to convert it to volts PARAMETERS channel the channel number 0 to 7 corresponding to LNO to LN7 Channel Code 9le Ended Voltage Ranget Input Lines V 0 AINO 0 22 5 1 AINI 0 22 5 2 AIN2 0 22 5 3 AIN3 0 22 5 4 AIN4 0 22 5 5 AINS 0 22 5 6 AIN6 0 22 5 7 AIN7 0 2 Negative input is ground T Applies to Prototyping Board t Used for thermistor in sample program gaincode the gain code of 0 to 7 applies only to Prototyping Board Gain Code nda Maria 0 x1 0 22 5 1 x2 0 11 25 2 x4 0 5 6 3 x5 0 4 5 4 x8 0 2 8 5 x10 0 2 25 6 x16 0 1 41 7 x20 0 1 126 Applies to Prototyping Board 62 RabbitCore RCM4200 anaInVolts continued RETURN VALUE A voltage value corresponding to the voltage on the analog input channel ADTIMEOUT 4095 if the conversion is incomplete or busy bit timeout ADOVERFLOW 4096 for overflow or out of range SEE ALSO anaInCalib anaIn anaInmAmps brdInit User s Manual 63 anaInDiff float anaInDiff unsigned int channel unsigned int gaincode DESCRIPTION Reads the state of differential analog input channels and uses the previously set calibra tion constants to convert it to volts PARAMETERS channel the cha
84. holes on Prototyping Board SO O GEO O DIO C amp O O qe Figure 3 Install the Module on the Prototyping Board NOTE It is important that you line up the pins on header J2 of the module exactly with socket RCMI on the Prototyping Board The header pins may become bent or damaged if the pin alignment is offset and the module will not work Permanent electrical dam age to the module may also result if a misaligned module is powered up Press the module s pins gently into the Prototyping Board socket press down in the area above the header pins For additional integrity you may secure the RCM4200 to the stand offs from the top using the remaining two screws and washers User s Manual 9 2 2 3 Step 3 Connect Programming Cable The programming cable connects the module to the PC running Dynamic C to download programs and to monitor the module during debugging Connect the 10 pin connector of the programming cable labeled PROG to header J1 on the RCM4200 as shown in Figure 4 Be sure to orient the marked usually red edge of the cable towards pin 1 of the connector Do not use the DIAG connector which is used for a normal serial connection Remove slot cover insert tab into slot SES AC Adapter z 2 Snap plug into place 3 pin power connector Programming Cable Colore
85. know the RCM4200 CONTROLLED C 16 FLASHLEDL C 16 FLASHLED2 C 16 TAMPERDETECTION C duet eei Sana 17 TOGGLESWITCH C 17 how to run TCP IP sample programs 81 82 how to set IP address 82 onboard serial flash SERIAL FLASHLOG C rotanti 18 SFLASH_INSPECT C 18 PONG G erano 12 real time clock RTC_TEST C 25 SETRTCKB C 25 serial communication FLOWCONTROL C 19 IOCONFIG SWITCHECHO C 21 PARITY C aee 19 SERDMA C 19 SIMPLE3WIRE C 20 SIMPLESWIRE C 20 SWITCHCHARC 20 124 RabbitCore RCM4200 sample programs cont d TCP IP BROWSELED C 84 DISPLAY MAC 78 PINGLED C 84 PINGMEC 84 SMTEC ues 84 USERBLOCK CLEAR C 49 USERBLOCK INFO C 49 serial communication 35 function calls 49 Prototyping Board RS 232 x xis 114 software PACKET LIB 49 RS232 LIB 49 serial flash software FAT CONFIG LIB 51 SFLASHL LIB 51 SFLASH_FAT LIB 51 serial ports sess 35 Ethernet port 37 programming port 38 receive line not pulled up 36 Serial Port B A D converter Serial Port C serial flash 35 Serial Port E tonica 21 35 software 6 auxi
86. l Output Voltage VoL VDDyjo 3 3 V d I O Ring Current 29 4912 MHz I 10 13 3 2536 ud I All other I O 8 mA DRIVE except TXD TXDD TXD TXDD 94 RabbitCore RCM4200 A 3 I O Buffer Sourcing and Sinking Limit Unless otherwise specified the Rabbit I O buffers are capable of sourcing and sinking 8 mA of current per pin at full AC switching speed Full AC switching assumes a 29 4 MHz CPU clock with the clock doubler enabled and capacitive loading on address and data lines of less than 70 pF per pin The absolute maximum operating voltage on all I O is 3 6 V A 4 Bus Loading You must pay careful attention to bus loading when designing an interface to the RCM4200 This section provides bus loading information for external devices Table A 5 lists the capacitance for the various RCM4200 I O ports Table A 5 Capacitance of Rabbit 4000 I O Ports Input Output I O Ports Capacitance Capacitance pF pF Parallel Ports A to E 12 14 Table A 6 lists the external capacitive bus loading for the various RCM4200 output ports Be sure to add the loads for the devices you are using in your custom system and verify that they do not exceed the values in Table A 6 Table A 6 External Capacitive Bus Loading 40 C to 85 C Output Port Clock Speed Maximum External i MHz Capacitive Loading pF All I O lines with clock doubler enabled 58 98 100 Table A 7 lists the lo
87. l Port E is configured to use Parallel Port E bits PD6 and PD7 These signals are available on the Prototyping Board s Module Extension Header header J2 Serial Port D is left in its default configuration using Parallel Port C bits PCO and PCI These signals are available on the Prototyping Board s RS 232 connector header J4 Serial Port D transmits and then receives an ASCII string when switch S3 is pressed Also note that there is one library generated by IOCONFIG EXE in the Dynamic C SAMPLES RCM4200 SERIAL folder for the 22 MHz RCM4210 To set up the Prototyping Board you will need to tie TxD 2 and RxD together on the RS 232 header at J4 using the eNO sine jumpers supplied in the Development Kit you will also MA tie TxE PD6 and RxE PD7 together with a soldered PE Poono PD1LN1 o o PD2 LN2 wire or with a wire jumper if you have soldered in the PD3LN3 0 PDALN4 PDS LN5 Oo PD6 LN6 IDC header supplied with the accessory parts in the Eon bara vt Development Kit VREF o o AGND Once you have compiled and run this program press and release switches S2 or S3 on the Prototyping Board The data echoed between the serial ports will be displayed in the STDIO window User s Manual 21 3 2 3 A D Converter Inputs RCM4200 only The following sample programs are found in the SAMPLES RCM4200 ADC folder AD CAL ALL C Demonstrates how to recalibrate all the single ended analog input
88. l measurements The default setup on the Prototyping Board is to measure only positive voltages for the ranges listed in Table B 3 Table B 3 Positive A D Converter Input Voltage Ranges Min Voltage ode t Gain A D Converter Resolution V V Multiplier Actual Gain mV 0 0 122 528 x1 1 11 0 0 11 264 x2 1 8 5 5 0 0 5 632 x4 3 6 2 75 0 0 4 506 x5 4 5 2 20 0 0 12 816 x8 7 2 1 375 0 0 312 253 x10 9 0 1 100 0 0 1 408 x16 14 4 0 688 0 0 1 126 x20 18 0 550 110 RabbitCore RCM4200 Many other possible ranges are possible by physically changing the resistor values that make up the attenuator circuit NOTE Analog input LN7_IN does not have the 10 KQ resistor installed and so no resistor attenuator is available limiting its maximum input voltage to 2 V This input is intended to be used for a thermistor that you may install at header location JP25 It is also possible to read a negative voltage on LNO IN LNS IN by moving the 0 Q jumper see Figure B 6 on header JP23 or JP24 associated with the A D converter input from analog ground to the reference voltage generated and buffered by the A D converter Adjacent input channels are paired moving the jumper on JP 23 changes both of the paired channels LN4 IN LNS5 IN and moving the jumper on JP24 changes LNO IN LN1 IN and LN2 IN LNG3 IN At the present time Rabbit Semiconductor does not offer the software drivers to work with single ended n
89. l now remain off whenever you are in the project file where you defined the macro NOTE Refer to the Rabbit 4000 Microprocessor User s Manual for more information on the spectrum spreading setting and the maximum clock speed 44 RabbitCore RCM4200 4 6 Memory 4 6 1 SRAM All RCM4200 modules have 512K of battery backed data SRAM installed at U10 and the RCM4200 model has 512K of fast SRAM installed at U12 4 6 2 Flash EPROM All RCM4200 modules also have 512K of flash EPROM installed at U11 NOTE Rabbit Semiconductor recommends that any customer applications should not be constrained by the sector size of the flash EPROM since it may be necessary to change the sector size in the future Writing to arbitrary flash memory addresses at run time is discouraged Instead define a user block area to store persistent data The functions writeUserBlock and readUserBlock are provided for this Refer to the Rabbit 4000 Microprocessor Designer s Handbook for additional information 4 6 3 Serial Flash Up to 8 Mbytes of serial flash memory is available to store data and Web pages Sample programs in the SAMPLES RCM4200 Serial_ Flash folder illustrate the use of the serial flash memory User s Manual 45 46 RabbitCore RCM4200 5 SOFTWARE REFERENCE Dynamic C is an integrated development system for writing embedded software It runs on an IBM compatible PC and is designed for use with single board computers and other
90. liary I O bus 34 49 VO drivers 49 libraries ADC ADS7870 LIB 54 RCM40XX LIB 52 serial communication driv E 49 serial flash 51 specifications AID converter chip 92 bus loading 95 digital I O buffer sourcing and sinking limits 95 exclusion zone 89 header footprint 93 Prototyping Board 106 Rabbit 4000 DC characteris CS cristo ero nia 94 Rabbit 4000 timing dia Stasi 96 RCM4200 ees 87 dimensions 88 electrical mechanical and environmental 90 relative pin 1 locations 93 spectrum spreader 97 SettIDBS sisi nonne 44 subsystems digital inputs and outputs 28 switching modes 39 T TCP IP primer 75 technical support 13 U USB serial port converter Dynamic C settings 12 user block determining size 49 function calls 49 readUserBlock 45 writeUserBlock 45 reserved area for calibration constants eeeee 49 User s Manual 126 RabbitCore RCM4200 SCHEMATICS 090 0241 RCM4200 Schematic www rabbit com documentation schemat 090 024 1 pdf 090 0230 Prototyping Board Schematic www rabbit com documentation schemat
91. lier 0 x1 1 x2 x4 x5 x8 x10 x16 x20 SEND tn AJ SN 56 RabbitCore RCM4200 analnDriver continued Channel Code PR Input Channel Code e ae E 0 AINO AINI 8 AINO AINO 1 AIN2 AIN3 9 AINI AINI 2 AIN4 AINS 10 AIN2 AIN2 31 AIN6 AIN7 11 AIN3 AIN3 4 AINO AINI 12 AIN4 AIN4 5 AIN2 AIN3 13 AINS AINS 6 AIN4 AINS 14 AIN6 AIN6 T AIN6 AIN7 15 AINT AIN7 Negative input is ground T Not accessible on Prototyping Board t Not accessible on Prototyping Board RETURN VALUE A value corresponding to the voltage on the analog input channel 0 2047 for 11 bit conversions 2048 2047 for 12 bit conversions ADTIMEOUT 4095 if the conversion is incomplete or busy bit timeout ADOVERFLOW 4096 for overflow or out of range SEE ALSO anaInConfig anaIn brdInit User s Manual 57 analn int anaIn unsigned int channel int opmode int gaincode DESCRIPTION Reads the value of an analog input channel using the Direct Mode method of addressing the A D converter Note that it takes about 1 second to ensure an internal capacitor on the A D converter is charged when the function is called the first time PARAMETERS channel the channel number 0 to 7 corresponding to LNO to LN7 opmode the mode of operation SINGLE single ended input DIFF differential input mAMP 4 20 mA input c
92. mode SMODEO SMODE 1 STATUS and reset pins are available on the programming port The two startup mode pins determine what happens after a reset the Rabbit 4000 is either cold booted or the program begins executing at address 0x0000 The status pin is used by Dynamic C to determine whether a Rabbit microprocessor is present The status output has three different programmable functions 1 It can be driven low on the first op code fetch cycle 2 It can be driven low during an interrupt acknowledge cycle 3 It can also serve as a general purpose output once a program has been downloaded and is running The reset pin is an external input that is used to reset the Rabbit 4000 Refer to the Rabbit 4000 Microprocessor User s Manual for more information 38 RabbitCore RCM4200 4 3 Programming Cable The programming cable is used to connect the programming port of the RCM4200 to a PC serial COM port The programming cable converts the RS 232 voltage levels used by the PC serial port to the CMOS voltage levels used by the Rabbit 4000 When the PROG connector on the programming cable is connected to the programming port on the RCM4200 programs can be downloaded and debugged over the serial interface The DIAG connector of the programming cable may be used on header J1 of the RCM4200 with the RCM4200 operating in the Run Mode This allows the programming port to be used as a regular serial port 4 3 1 Changing Between Program Mode
93. n the intended use Sample programs are available to illustrate how to read and calibrate the various A D inputs for the single ended operating mode Mode Read Calibrate Single Ended one channel AD CAL CHAN C Single Ended all channels AD RDVOLT ALL C AD CAL ALL C 112 RabbitCore RCM4200 B 4 4 Serial Communication The Prototyping Board allows you to access the serial ports from the RCM4200 module Table B 5 summarizes the configuration options Note that Serial Ports E can be used only when the RCM4210 is installed on the Prototyping Board Table B 5 Prototyping Board Serial Port Configurations Serial Port Header Default Use Alternate Use A J2 Programming Port RS 232 n reo S C J2 J4 Serial Flash D J2 JA RS 232 J2 RS 232 Serial Ports E may be used as a serial port or the corresponding pins at header location J2 may be used as parallel ports User s Manual 113 B 4 4 1 RS 232 RS 232 serial communication on header J4 on both Prototyping Boards is supported by an RS 232 transceiver installed at U3 This transceiver provides the voltage output slew rate and input voltage immunity required to meet the RS 232 serial communication protocol Basically the chip translates the Rabbit 4000 s signals to RS 232 signal levels Note that the polarity is reversed in an RS 232 circuit so that a 3 3 V output becomes approxi mately 10 V and 0 V is output
94. ned IP address under Windows NT or later you can run the ipconfig command Start gt Run gt cmd while you are connected and look at the interface used to connect to the Internet Many networks use IP addresses that are assigned using DHCP When your computer comes up and periodically after that it requests its networking information from a DHCP server The DHCP server may try to give you the same address each time but a fixed IP address is usually not guaranteed If you are not concerned about accessing the RCM4200 from the Internet you can place the RCM4200 on the internal network using an IP address assigned either statically or through DHCP User s Manual 79 6 3 Placing Your Device on the Network In many corporate settings users are isolated from the Internet by a firewall and or a proxy server These devices attempt to secure the company from unauthorized network traffic and usually work by disallowing traffic that did not originate from inside the net work If you want users on the Internet to communicate with your RCM4200 you have several options You can either place the RCM4200 directly on the Internet with a real Internet address or place it behind the firewall If you place the RCM4200 behind the fire wall you need to configure the firewall to translate and forward packets from the Internet to the RCM4200 80 RabbitCore RCM4200 6 4 Running TCP IP Sample Programs We have provided a number of sample programs
95. nennen eere 80 6 4 Running TCP IP Sample ProgramS e 81 6 4 1 How to Set IP Addresses in the Sample ProgramS eene 82 6 4 2 How to Set Up your Computer for Direct Connect eene enne 83 6 5 Run the PINGME C Sample Program i 84 6 6 Running Additional Sample Programs With Direct Connect 84 6 7 Where Do I Go From Here 5 eet te ee eR ade tete op ee ree s 85 Appendix A RCM4200 Specifications 87 A 1 Electrical and Mechanical Characteristics eene nere nennen ener enne trennen 88 AT AD CODVETIGE eode peor DEO RIED RE ERE ERO RETE 92 WA m M 93 A 2 Rabbit 4000 DC Characteristics ii 94 A 3 I O Buffer Sourcing and Sinking Limit ie 95 ALA Bus Loading iia Re PERRO dE SS 95 AS Contormal Coating iaia elia nter torte tinte Luni landa 98 A 6 Jumper Configurations ie 99 Appendix B Prototyping Board 101 Bell Introduction n ree eee Remp petes 102 B 1 1 Prototyping Board Features eee reet tite e e etie ses e eei oe recs 103 B 2 Mechanical Dimensions and Layout i 105 B 3 PowerSupply ite rr EUR HERES TINI NONO Pe tr prt rici 106 RabbitCore RCM4200 B 4 Using the Prototyping Board i 107 B 4 1 Adding Other ComponentsS iii 109 B 4 2 Measuring Current DraW
96. nnel number 0 to 7 corresponding to LNO to LN7 channel DIFF voltage Nange V 0 AINO AINI 22 5 to 422 5 1 AINI AINI 2 AIN2 AIN3 22 5 to 22 5 3 AIN3 AIN3 4 AIN4 AIN5 22 5 to 422 5 5 AINS AINS 6 AIN6 AIN7 7 T AINT AIN7 Accessible on Prototyping Board gaincode the gain code of 0 to 7 applies only to Prototyping Board A 0 x1 22 5 422 5 1 x2 11 25 411 25 2 x4 5 6 45 6 3 x5 4 5 44 5 4 x8 2 8 42 8 5 x10 2 25 2 25 6 x16 1 41 1 41 7 x20 1 126 1 126 64 RabbitCore RCM4200 analnDiff continued RETURN VALUE A voltage value corresponding to the voltage differential on the analog input channel ADTIMEOUT 4095 if the conversion is incomplete or busy bit timeout ADOVERFLOW 4096 for overflow or out of range SEE ALSO anaInCalib anaIn anaInmAmps brdInit User s Manual 65 analnmAmps float anaInmAmps unsigned int channel DESCRIPTION Reads the state of an analog input channel and uses the previously set calibration con stants to convert it to current PARAMETERS channel the channel number 0 to 7 corresponding to LNO to LN7 Channel Code TQUE 0 AINO 1 AIN1 2 AIN2 3 AIN3 4 AIN4 5 AINS 6 AIN6 7 AIN7 Negative input is ground Applies to Prototyping Board RETURN VALUE A current value between 4 00 and 20 00 mA corresponding to the current on th
97. nual 27 4 1 RCM4200 Digital Inputs and Outputs Figure 6 shows the RCM4200 pinouts for header J2 Note 3 3 V IN RESET OUT IOWR VBAT_EXT PA1 PA3 PA5 PA7 PB1_SCLKA PB3 PB5 PB7 PC1 PC3 RxC PC5 RxB PC7 RxA PE1 PE3 PE5 SMODEO PE7 STATUS PD4 LN1 PD3 LN3 PD5 LN5 PD7 LN7 VREF GND ORD RESET_IN PAO PA2 PA4 PAG PBO_SCLKB PB2 PB4 PB6 PCO PC2_TxC PC4_TxB PC6_TxA PEO PE2 ENET EN PE4 PE6 SMODE1 PDO LNO PD2 LN2 PD4 LN4 PD6 LN6 CONVERT GND n c not connected These pinouts are as seen on the Bottom Side of the module Figure 6 RCM4200 Pinout Headers J2 is a standard 2 x 25 IDC header with a nominal 1 27 mm pitch 28 RabbitCore RCM4200 Figure 7 shows the use of the Rabbit 4000 microprocessor ports in the RCM4200 modules PAO PA7 PB2 PB7 PDO PD7 E RCM4210 only Port B UU o i RABBIT 4000 Serial Ports C amp D Serial Ports E amp F RCM4210 only U 3 a PCE Serial Port B Clock Doubler Backup Battery Support RES_IN PB1 PC6 STATUS Programming Real Time Clock Misc YO PC7 RES Cu EN Watchdog oe SMODEO SMODE1 11 Timers RESET_OUT PC4 NORD AID Converter Slave Port NOWR Figure 7 Use of Rabbit 4000 Ports The ports on th
98. ogram runs in either mode but can only be downloaded and debugged when the RCM4200 is in the Program Mode Refer to the Rabbit 4000 Microprocessor User s Manual for more information on the pro gramming port 4 3 2 Standalone Operation of the RCM4200 Once the RCM4200 has been programmed successfully remove the programming cable from the programming connector and reset the RCM4200 The RCM4200 may be reset by cycling the power off on or by pressing the RESET button on the Prototyping Board The RCM4200 module may now be removed from the Prototyping Board for end use installa tion CAUTION Power to the Prototyping Board or other boards should be disconnected when removing or installing your RCM4200 module to protect against inadvertent shorts across the pins or damage to the RCM4200 if the pins are not plugged in cor rectly Do not reapply power until you have verified that the RCM4200 module is plugged in correctly 40 RabbitCore RCM4200 4 4 A D Converter RCM4200 only The RCM4200 has an onboard ADS7870 A D converter whose scaling and filtering are done via the motherboard on which the RCM4200 module is mounted The A D converter multiplexes converted signals from eight single ended or four differential inputs to Serial Port B on the Rabbit 4000 The eight analog input pins LNO LN7 each have an input impedance of 6 7 MQ depending on whether they are used as single ended or differential inputs The input signal can ran
99. on constants for the selected channel e AD RDVOLT ALL C Demonstrates how to read all single ended A D input channels using previously defined calibration constants The constants used to compute equivalent voltages are read from the user block data area so the sample program cannot be run using the Code and BIOS in RAM compiler option Compile and run this sample program once you have connected a positive voltage from 0 20 V DC for example the power supply positive output to analog input channels LNOIN LN6IN on the Prototyping Board and ground to GND Follow the prompts in the Dynamic C STDIO window Raw data and the computed equivalent voltages will be displayed Remember that analog input LN7 on the Prototyping Board is used with the thermistor and is not be used with this sample program AD SAMPLE C Demonstrates how to how to use a low level driver on single ended inputs The program will continuously display the voltage averaged over 10 samples that is present on an A D converter channel except LN7 The constants used to compute equivalent voltages are read from the user block data area so the sample program cannot be run using the Code and BIOS in RAM compiler option Compile and run this sample program once you have connected a positive voltage from 0 20 V DC to an analog input except LN7 on the Prototyping Board and ground to GND Follow the prompts in the Dynamic C STDIO window Raw data and the computed eq
100. ons Two LEDs are connected to the PB2 and PB3 pins of the RCM4200 module and may be driven as output indicators by sample applications Prototyping Area A generous prototyping area has been provided for the installation of through hole components 3 3 V 5 V and Ground buses run around the edge of this area Several areas for surface mount devices are also available Note that there are SMT device pads on both top and bottom of the Prototyping Board Each SMT pad is connected to a hole designed to accept a 30 AWG solid wire Module Extension Header The complete pin set of the RCM4200 module is duplicated at header J2 Developers can solder wires directly into the appropriate holes or for more flexible development a 2 x 25 header strip with a 0 1 pitch can be sol dered into place See Figure B 4 for the header pinouts NOTE The same Prototyping Board can be used for several series of RabbitCore mod ules and so the signals at J2 depend on the signals available on the specific RabbitCore module Analog Inputs Header The Prototyping Board s analog signals are presented at header J3 These analog signals are connected via attenuator filter circuits on the Proto typing Board to the corresponding analog inputs on the RCM4200 module Developers can solder wires directly into the appropriate holes or for more flexible development a 2 x 7 header strip with a 0 1 pitch can be soldered into place See Figure B 4 for the header pin
101. otypes of your own circuits The Prototyping Board has power supply connections and also provides some basic I O peripherals RS 232 LEDs and switches as well as a prototyping area for more advanced hardware development User s Manual 101 B 1 Introduction The Prototyping Board included in the Development Kit makes it easy to connect an RCM4200 module to a power supply and a PC workstation for development It also pro vides some basic I O peripherals RS 232 LEDs and switches as well as a prototyping area for more advanced hardware development For the most basic level of evaluation and development the Prototyping Board can be used without modification As you progress to more sophisticated experimentation and hardware development modifications and additions can be made to the board without modifying the RCM4200 module The Prototyping Board is shown below in Figure B 1 with its main features identified RCM4200 Module Connector RCM4200 Standoff Mounting SMT Prototyping Area Current Measurement Headers Backup 5V 3 3 V and Battery GND Buses 59 00000000000 90000909900000 SS 000000000000000 SO O GEO O DIO O80 O ql Ca I i S o RCM4200 Module Extension Header Switches Figure B 1 Prototyping Boar
102. outs User s Manual 103 e RS 232 Two 3 wire or one 5 wire RS 232 serial ports are available on the Prototyp ing Board at header J4 A 10 pin 0 1 pitch header strip installed at J4 allows you to connect a ribbon cable that leads to a standard DE 9 serial connector e Current Measurement Option You may cut the trace below header JP1 on the bottom side of the Prototyping Board and install a 1 x 2 header strip from the Develop ment Kit to allow you to use an ammeter across the pins to measure the current drawn from the 5 V supply Similarly you may cut the trace below header JP2 on the bottom side of the Prototyping Board and install a 1 x 2 header strip from the Development Kit to allow you to use an ammeter across the pins to measure the current drawn from the 3 3 V supply e Backup Battery A 2032 lithium ion battery rated at 3 0 V 220 mA h provides battery backup for the RCM4200 SRAM and real time clock 104 RabbitCore RCM4200 B 2 Mechanical Dimensions and Layout Figure B 2 shows the mechanical dimensions and layout for the Prototyping Board 2 735 69 5 B e es E T aV E mm FLEAS SSI MZ ie Pe OOOOOOOO re OCOOOOOOOOO0000 re OOO0OOOOOOoOOOOQgl re OOO0OoOoOoooooooOOQ re ODOOOO000O0000000 re ODOOOO0000000000 re DOOOOOOOOOOOO Om t re OOoo0ooooooooooo re OCOOOOOOO0O00O0N O re O00000
103. port settings 12 E Ethernet cables 73 how to tell them apart 73 Ethernet connections 73 75 10 100Base T 75 10Base T Ethernet card 73 additional resources 85 direct connection 75 Ethernet cables 75 Ethernet hub 73 IP addresses 75 77 MAC addresses 78 STEPS suini 74 Ethernet port 37 pinout in 37 exclusion zone 89 F features n 2 Prototyping Boards 102 103 flash memory addresses user blocks 45 H hardware connections install RCM4200 on Prototyping Board 9 power supply 11 programming cable 10 l T O buffer sourcing and sinking JAMES uites 95 IP addresses 77 how to set in sample programs M EE 82 how to set PC IP address 83 User s Manual 123 J jumper configurations Prototyping Board 115 JP1 5 V current measure ment 115 JP1 LNO buffer filter to RCM4200 116 JP12 PB2 LED DS2 116 JP13 LN1 buffer filter to RCM4200 116 JP14 PB3 LED DS3 116 JP15 LN2 buffer filter to RCM4200 116 JP16 PB4 Switch S2 116 JP17 LN3 buffer filter to RCM4200
104. r s Manual 11 2 3 Run a Sample Program Once the RCM4200 is connected as described in the preceding pages start Dynamic C by double clicking on the Dynamic C icon on your desktop or in your Start menu For the RCM4200 model select Code and BIOS in Flash Run in RAM on the Compiler tab in the Dynamic C Options Project Options menu Select Code and BIOS in Flash for the RCM4210 Click OK If you are using a USB port to connect your computer to the RCM4200 click on the Communications tab and verify that Use USB to Serial Converter is selected to sup port the USB programming cable Click OK You may have to determine which COM port was assigned to the RS 232 USB converter Open Control Panel gt System gt Hardware gt Device Manager gt Ports and identify which COM port is used for the USB connection In Dynamic C select Options gt Project Options then select this COM port on the Communications tab then click OK You may type the COM port number followed by Enter on your computer keyboard if the COM port number is outside the range on the dropdown menu Now find the file PONG C which is in the Dynamic C SAMPLES folder To run the pro gram open it with the File menu compile it using the Compile menu and then run it by selecting Run in the Run menu The STDIO window will open on your PC and will dis play a small square bouncing around in a box 2 3 1 Troubleshooting If you receive the message No Rabbit Processor
105. ram More complete information on Dynamic C is provided in the Dynamic C User s Manual User s Manual 15 3 2 Sample Programs Of the many sample programs included with Dynamic C several are specific to the RCM4200 modules These programs will be found in the SAMPLES RCM4200 folder e CONTROLLED c Demonstrates use of the digital outputs by having you turn LEDs DS2 and DS3 on the Prototyping Board on or off from the STDIO window on your PC Parallel Port B bit 2 LED DS2 Parallel Port B bit 3 LED DS3 Once you compile and run CONTROLLED C the following display will appear in the Dynamic C STDIO window lt lt Proto board LEDs pP From PC keyboard Select 22052 or 3 053 to toggle LEDs Press GQ To Quit gt Press 2 or 3 on your keyboard to select LED DS2 or DS3 on the Prototyping Board Then follow the prompt in the Dynamic C STDIO window to turn the LED ON or OFF A logic low will light up the LED you selected e FLASHLED1 C demonstrates the use of assembly language to flash LEDs DS2 and DS3 on the Prototyping Board at different rates Once you have compiled and run this program LEDs DS2 and DS3 will flash on off at different rates e FLASHLED2 c demonstrates the use of cofunctions and costatements to flash LEDs DS2 and DS3 on the Prototyping Board at different rates Once you have compiled and run this program LEDs DS2 and DS3 will flash on off at different rates 16 RabbitCore RCM42
106. rd are turned on and off when you press switches S2 and S3 S2 and S3 are controlled by PB4 and PBS respectively Once you have loaded and executed these five programs and have an understanding of how Dynamic C and the RCM4200 modules interact you can move on and try the other sample programs or begin building your own User s Manual 17 3 2 1 Use of Serial Flash The following sample programs can be found in the SAMPLES RCM4200 Serial Flash folder SERIAL _FLASHLOG C This program runs a simple Web server and stores a log of hits on the home page of the serial flash server This log can be viewed and cleared from a browser at http 10 10 6 100 You will likely have to first configure your net work interface card for a 10Base T Half Duplex 100Base T Half Duplex or an Auto Negotiation connection on the Advanced tab which is accessed from the control panel Start Settings Control Panel by choosing Network Connections SFLASH_INSPECT C This program is a handy utility for inspecting the contents of a serial flash chip When the sample program starts running it attempts to initialize a serial flash chip on Serial Port C Once a serial flash chip is found the user can perform five different commands to print out the contents of a specified page set all bytes on the specified page to a single random value clear set to zero all the bytes in a speci fied page set all bytes on the specified page to
107. ribes the conformal coating User s Manual 87 A 1 Electrical and Mechanical Characteristics Figure A 1 shows the mechanical dimensions for the RCM4200 0 125 dia 3 2 0 19 5 Please refer to the RCM4200 footprint diagram later in this appendix for precise header locations i Y o gt ri a Qe Se SS VN p V Sa L02184 Be r RS 47 e Figure A 1 RCM4200 Dimensions NOTE All measurements are in inches followed by millimeters enclosed in parentheses All dimensions have a manufacturing tolerance of 0 01 0 25 mm 88 RabbitCore RCM4200 It is recommended that you allow for an exclusion zone of 0 04 1 mm around the RCM4200 in all directions when the RCM4200 is incorporated into an assembly that includes other printed circuit boards An exclusion zone of 0 08 2 mm is recom mended below the RCM4200 when the RCM4200 is plugged into another assembly Figure A 2 shows this exclusion zone Exclusion Zone Figure A 2 RCM4200 Exclusion Zone User s Manual 89 Table A 1 lists the electrical mechanical and environmental specifications for the RCM4200 Table A 1 RCM4200 Specifications Parameter RCM4200 RCM4210 Microprocessor
108. river or receiver chips directly on the board However a serial interface may be incorporated on the board the RCM4200 is mounted on For example the Prototyping Board has an RS 232 transceiver chip 4 2 1 Serial Ports There are five serial ports designated as Serial Ports A B C D and E AII five serial ports can operate in an asynchronous mode up to the baud rate of the system clock divided by 8 An asynchronous port can handle 7 or 8 data bits A 9th bit address scheme where an additional bit is sent to mark the first byte of a message is also supported Serial Port A is normally used as a programming port but may be used either as an asyn chronous or as a clocked serial port once application development has been completed and the RCM4200 is operating in the Run Mode Serial Port B is shared by the RCM4200 module s A D converter and is set up as a clocked serial port Since this serial port is set up for synchronous serial communication on the RCM4200 model you will lose the A D converter s functionality if you try to use the serial port in the asynchronous mode Serial Port B is available without any restrictions on the RCM4210 Serial Port C is shared with the serial flash and is set up as a clocked serial port PE7 is set up to provide the SCLKC output to the serial flash but PD2 also provides the SCLKC ouput automatically when Serial Port C is used as a clocked serial port Since this serial port is available for synchronous
109. s for the RCM4200 and for all other Rabbit Semiconductor hardware you must install and use Dynamic C This chapter provides a tour of its major features with respect to the RCM4200 3 1 Introduction To help familiarize you with the RCM4200 modules Dynamic C includes several sample programs Loading executing and studying these programs will give you a solid hands on overview of the RCM4200 s capabilities as well as a quick start with Dynamic C as an application development tool NOTE The sample programs assume that you have at least an elementary grasp of ANSIC If you do not see the introductory pages of the Dynamic C User s Manual for a sug gested reading list In order to run the sample programs discussed in this chapter and elsewhere in this manual 1 Your module must be plugged in to the Prototyping Board as described in Chapter 2 Getting Started 2 Dynamic C must be installed and running on your PC 3 The programming cable must connect the programming header on the module to your PC 4 Power must be applied to the module through the Prototyping Board Refer to Chapter 2 Getting Started if you need further information on these steps To run a sample program open it with the File menu if it is not still open then compile and run it by pressing F9 Each sample program has comments that describe the purpose and function of the pro gram Follow the instructions at the beginning of the sample prog
110. sed as a broadcast address Usually one other address is used for the address of the gateway out of the network This leaves 256 3 253 available IP addresses for the example given User s Manual 77 6 2 2 How IP Addresses are Used The actual hardware connection via an Ethernet uses Ethernet adapter addresses also called MAC addresses These are 48 bit addresses and are unique for every Ethernet adapter manufactured In order to send a packet to another computer given the IP address of the other computer it is first determined if the packet needs to be sent directly to the other computer or to the gateway In either case there is an Ethernet address on the local network to which the packet must be sent A table is maintained to allow the protocol driver to determine the MAC address corresponding to a particular IP address If the table is empty the MAC address is determined by sending an Ethernet broadcast packet to all devices on the local network asking the device with the desired IP address to answer with its MAC address In this way the table entry can be filled in If no device answers then the device is nonexistent or inoperative and the packet cannot be sent Some IP address ranges are reserved for use on internal networks and can be allocated freely as long as no two internal hosts have the same IP address These internal IP addresses are not routed to the Internet and any internal hosts using one of these reserved IP addre
111. serial communication on either RCM4200 model you will lose the serial flash s functionality if you try to use the serial port in the asynchronous mode NOTE Since Serial Port C is shared with the serial flash exercise care if you attempt to use Serial Port C for other serial communication Your application will have to manage the sharing negotiations to avoid conflicts when reading or writing to the serial flash Serial Port D may also be used as a clocked serial port Note that PDO provides the SCLKD ouput automatically when Serial Port D is set up as a clocked serial port Serial Port E which is available only on the RCM4210 can also be configured as an SDLC HDLC serial port The IrDA protocol is also supported in SDLC format by Serial Port E Serial Port E must be configured before it can be used The sample program IOCONFIG SWITCHECHO C in the Dynamic C SAMPLES RCM4200 SERIAL folder shows how to configure Serial Port E User s Manual 35 Table 3 summarizes the possible parallel port pins for the serial ports and their clocks Table 3 Rabbit 4000 Serial Port and Clock Pins i TXA PC6 PC7 PD6 TXD PCO PCI Serial Port A program RXA PC7 PD7 PE7 Serial Port D RXD PC1 PD1 PEI i t TRS part SCLKA PBI SCLKD _ PDO PEO PE3 PC3 Serial Port B TXB PC4 PC5 PD4 TXE PD6 PC6 PEG used by A D RXB PCS PDS PES Serial Port E RXE PD7 PC7 PE7 converter on RCM4210 RCM42
112. so pads that can be used for SMT resistors and capacitors in an 0805 SMT package Each component has every one of its pin pads connected to a hole in which a 30 AWG wire can be soldered standard wire wrap wire can be soldered in for point to point wiring on the Prototyping Board Because the traces are very thin carefully determine which set of holes is con nected to which surface mount pad B 4 2 Measuring Current Draw The Prototyping Board has a current measurement feature available at header locations JP1 and JP2 for the 5 V and 3 3 V supplies respectively To measure current you will have to cut the trace on the bottom side of the Prototyping Board corresponding to the power supply or power supplies whose current draw you will be measuring Header loca tions JP1 and JP2 are shown in Figure B 5 Then install a 1 x 2 header strip from the Development Kit on the top side of the Prototyping Board at the header location s whose trace s you cut The header strip s will allow you to use an ammeter across their pins to measure the current drawn from that supply Once you are done measuring the current place a jumper across the header pins to resume normal operation Bottom Side O JP1 JP2 se US Cut traces CURRENT MEASUREMENT JRA Ge WA es Cr or T JRZ SM Figure B 5 Prototyping Board Current Measurement Option NOTE Once you have cut the trace below header location JP
113. sses cannot communicate on the external Internet without being connected to a host that has a valid Internet IP address The host would either translate the data or it would act as a proxy Each RCM4200 RabbitCore module has its own unique MAC address which consists of the prefix 0090C2 followed by a code that is unique to each RCM4200 module For exam ple a MAC address might be 0090C2C002C0 TIP You can always obtain the MAC address on your module by running the sample program DISPLAY MAC C from the SAMPLES TCPIP folder 78 RabbitCore RCM4200 6 2 3 Dynamically Assigned Internet Addresses In many instances devices on a network do not have fixed IP addresses This is the case when for example you are assigned an IP address dynamically by your dial up Internet service provider ISP or when you have a device that provides your IP addresses using the Dynamic Host Configuration Protocol DHCP The RCM4200 modules can use such IP addresses to send and receive packets on the Internet but you must take into account that this IP address may only be valid for the duration of the call or for a period of time and could be a private IP address that is not directly accessible to others on the Internet These addresses can be used to perform some Internet tasks such as sending e mail or browsing the Web but it is more difficult to participate in conversations that originate elsewhere on the Internet If you want to find out this dynamically assig
114. tCore RCM4200 B 4 Using the Prototyping Board The Prototyping Board is actually both a demonstration board and a prototyping board As a demonstration board it can be used to demonstrate the functionality of the RCM4200 right out of the box without any modifications to either board The Prototyping Board comes with the basic components necessary to demonstrate the operation of the RCM4200 Two LEDs DS2 and DS3 are connected to PB2 and PB3 and two switches S2 and S3 are connected to PB4 and PB5 to demonstrate the interface to the Rabbit 4000 microprocessor Reset switch S1 is the hardware reset for the RCM4200 The Prototyping Board provides the user with RCM4200 connection points brought out con veniently to labeled points at header J2 on the Prototyping Board Although header J2 is unstuffed a 2 x 25 header is included in the bag of parts RS 232 signals Serial Ports C and D are available on header J4 A header strip at J4 allows you to connect a ribbon cable and a ribbon cable to DB9 connector is included with the Development Kit The pinouts for these locations are shown in Figure B 4 a z o GND ar zn J4 TxD RxC RxD TxC RS 232 3 3V GND GND IRST OUT NORD IIOWR IRST_IN VBAT_EXT PA1 PA3 PA5 PA7 PB1 PB3 RCM4200 Ps5 Signals Fer PC1 PC3 PC5 PC7 PE1 PE3 PES PE7 PD1 LN1 PD3 LN3 PDS LNS PD7 LN7 VREF PAO PA2 PA4 PAG PBO PB2 PB4 PB6 PCO PC2 PC4 PC6 PE
115. tarted by an active rising edge on the CONVERT pin The CONVERT pin must stay low for at least two CCLK periods before going high for at least two CCLK periods Figure 12 shows the timing of a conversion start The double falling arrow on CCLK indicates the actual start of the conversion cycle Conversion starts BUSY MEE CONV Figure 12 Timing Diagram for Conversion Start Using CONVERT Pin Appendix B explains the implementation examples of these features on the Prototyping Board 42 RabbitCore RCM4200 4 4 1 A D Converter Power Supply The analog section is isolated from digital noise generated by other components by way of a low pass filter composed of C1 L1 and C86 on the RCM4200 as shown in Figure 13 The V analog power supply powers the A D converter chip 3 3 V V L1 L C1 C86 7100 nF la nF Figure 13 Analog Supply Circuit User s Manual 43 4 5 Other Hardware 4 5 1 Clock Doubler The RCM4200 takes advantage of the Rabbit 4000 microprocessor s internal clock doubler A built in clock doubler allows half frequency crystals to be used to reduce radiated emissions The 58 98 MHz frequency specified for the RCM4200 model is generated using a 29 49 MHz crystal The clock doubler may be disabled if 58 98 MHz clock speeds are not required Disabling the Rabbit 4000 microprocessor s internal clock doubler will reduce power consumption and further reduce radiated emissions The clock do
116. the top 2K of the reserved user block memory area 3800 39FF This leaves the address range 0 37FF in the user block available for your application These address ranges may change in the future in response to the volatility in the flash memory market in particular sector size The sample program USERBLOCK INFO Cin the Dynamic C SAMPLESNUSERBLOCK folder can be used to determine the version of the ID block the size of the ID and user blocks whether or not the ID user blocks are mir rored the total amount of flash memory used by the ID and user blocks and the area of the user block available for your application The USERBLOCK CLEAR C sample program shows you how to clear and write the con tents of the user block that you are using in your application the calibration constants in the reserved area and the ID block are protected User s Manual 49 5 2 4 SRAM Use The RCM4200 module has a battery backed data SRAM and a program execution SRAM Dynamic C provides the protected keyword to identify variables that are to be placed into the battery backed SRAM The compiler generates code that maintains two copies of each protected variable in the battery backed SRAM The compiler also generates a flag to indicate which copy of the protected variable is valid at the current time This flag is also stored in the battery backed SRAM When a protected variable is updated the inactive copy is modified and is made active only when the
117. tion does not start use the Windows Start Run menu or Windows Disk Explorer to launch setup exe from the root folder of the CD ROM The installation program will guide you through the installation process Most steps of the process are self explanatory Dynamic C uses a COM serial port to communicate with the target development system The installation allows you to choose the COM port that will be used The default selec tion is COM1 You may select any available port for Dynamic C s use If you are not cer tain which port is available select COMI This selection can be changed later within Dynamic C NOTE The installation utility does not check the selected COM port in any way Speci fying a port in use by another device mouse modem etc may lead to a message such as could not open serial port when Dynamic C is started Once your installation is complete you will have up to three new icons on your PC desk top One icon is for Dynamic C another opens the documentation menu and the third is for the Rabbit Field Utility a tool used to download precompiled software to a target system If you have purchased any of the optional Dynamic C modules install them after installing Dynamic C The modules may be installed in any order You must install the modules in the same directory where Dynamic C was installed User s Manual 7 2 2 Hardware Connections There are three steps to connecting the Prototyping Board for use with
118. tworking or disconnect a PC from the corporate network or install a second Ethernet adapter and set up a separate private network attached to the second Ethernet adapter Disconnecting your PC from the corporate network may be easy or nearly impossible depending on how it is set up If your PC boots from the network or is dependent on the network for some or all of its disks then it probably should not be disconnected If a second Ethernet adapter is used be aware that Windows TCP IP will send messages to one adapter or the other depending on the IP address and the binding order in Microsoft products Thus you should have different ranges of IP addresses on your private network from those used on the cor porate network If both networks service the same IP address then Windows may send a packet intended for your private network to the corporate network A similar situation will take place if you use a dial up line to send a packet to the Internet Windows may try to send it via the local Ethernet network if it is also valid for that network The following IP addresses are set aside for local networks and are not allowed on the Internet 10 0 0 0 to 10 255 255 255 172 16 0 0 to 172 311 255 255 and 192 168 0 0 to 192 168 255 255 The RCM4200 uses a 10Base T type of Ethernet connection which is the most common scheme The RJ 45 connectors are similar to U S style telephone connectors except they are larger and have 8 contacts An alternative
119. ubler is disabled with a simple config uration macro as shown below 1 Select the Defines tab from the Dynamic C Options gt Project Options menu 2 Add the line CLOCK_DOUBLED 0 to always disable the clock doubler The clock doubler is enabled by default and usually no entry is needed If you need to specify that the clock doubler is always enabled add the line CLOCK_ DOUBLED 1 to always enable the clock doubler 3 Click OK to save the macro The clock doubler will now remain off whenever you are in the project file where you defined the macro 4 5 2 Spectrum Spreader The Rabbit 4000 features a spectrum spreader which helps to mitigate EMI problems The spectrum spreader is on by default but it may also be turned off or set to a stronger setting The means for doing so is through a simple configuration macro as shown below 1 Select the Defines tab from the Dynamic C Options gt Project Options menu 2 Normal spreading is the default and usually no entry is needed If you need to specify normal spreading add the line ENABLE_SPREADER 1 For strong spreading add the line ENABLE_SPREADER 2 To disable the spectrum spreader add the line ENABLE_SPREADER 0 NOTE The strong spectrum spreading setting is not recommended since it may limit the maximum clock speed or the maximum baud rate It is unlikely that the strong set ting will be used in a real application 3 Click OK to save the macro The spectrum spreader wil
120. uiv alent voltages will be displayed If you attach a voltmeter between the analog input and ground you will be able to observe that the voltage in the Dynamic C STDIO window tracks the voltage applied to the analog input as you vary it 22 RabbitCore RCM4200 THERMISTOR C Demonstrates how to use analog input LN7 to calculate temperature for display to the Dynamic C STDIO window This sample program assumes that the thermistor is the one included in the Development Kit whose values for beta series resistance and resistance at standard temperature are given in the part specification Install the thermistor at location JP25 on the Prototyping Board before running this sample program Observe the temperature changes shown in the Dynamic C STDIO window as you apply heat or cold air to the thermistor 3 2 3 1 Downloading and Uploading Calibration Constants The Tera Term utility called for in these sample programs can be downloaded from hp vector co jp authors VA0024 1 6 teraterm html These sample programs must be compiled to flash memory To do so select Options gt Project Options in Dynamic C then select the Compiler tab and select Code and BIOS in Flash for the BIOS Memory Setting Before you compile and run these sample programs you will also need to connect the RS 232 header at J4 to your PC as shown in the diagram using the serial to DB9 cable Colored supplied in the Development Kit edge
121. ules Each Dynamic C add on module has complete documentation and sample programs to illustrate the functionality of the software calls in the module Visit our Web site at www rabbit com for further information and complete documentation for each module In addition to the Web based technical support included at no extra charge a one year telephone based technical support module is also available for purchase User s Manual 71 72 RabbitCore RCM4200 6 USING THE TCP IP FEATURES 6 1 TCP IP Connections Programming and development can be done with the RCM4200 without connecting the Ethernet port to a network However if you will be running the sample programs that use the Ethernet capability or will be doing Ethernet enabled development you should connect the RCM4200 module s Ethernet port at this time Before proceeding you will need to have the following items e If you don t have Ethernet access you will need at least a 10Base T Ethernet card available from your favorite computer supplier installed in a PC e Two RJ 45 straight through Ethernet cables and a hub or an RJ 45 crossover Ethernet cable Figure 14 shows how to identify the two Ethernet cables based on the wires in the trans parent RJ 45 connectors Same Different color order color order in connectors in connectors Straight Through Crossover Cable Cable Figure 14 How to Identify Straight Through and Crossover Ethernet Cables Ethern
122. urrent Draw 800 mA max for 3 3 V supply including user added circuits 1 A total 3 3 V and 5 V combined 1 3 x 2 0 33 mm x 50 mm throughhole 0 1 spacing FIQUOI PIG ita additional space for SMT components One 2 x 25 header socket 1 27 mm pitch to accept RCM4200 One 1 x 3 IDC header for power supply connection Connectors One 2 x 5 IDC RS 232 header 0 1 pitch Two unstuffed header locations for analog and RCM4200 signals 25 unstuffed 2 pin header locations for optional configurations B 3 Power Supply The RCM4200 requires a regulated 3 0 V 3 6 V DC power source to operate Depending on the amount of current required by the application different regulators can be used to supply this voltage The Prototyping Board has an onboard 5 V switching power regulator from which a 3 3 V linear regulator draws its supply Thus both 5 V and 43 3 V are available on the Prototyping Board The Prototyping Board itself is protected against reverse polarity by a Shottky diode at D2 as shown in Figure B 3 LINEAR POWER REGULATOR 3 3 v SWITCHING POWER REGULATOR Py J Ti 1 D2 DGIN JPA LM1117 P2 zz H s U2 ei ut ao Q l Di403 cs aaa C6 c4 i e T47 pF 330 uH 330 uF 10 uF 10 pF IL LM2575 la L1 aE L LL B140 Figure B 3 Prototyping Board Power Supply 106 Rabbi

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