User manual for 505 dev system 2004 05 07
Contents
1. destination master or slave The frame must be ack ed by the destination or else the source will retransmit the frame If the source is Slave it will give up transmitting after approximately 25 seconds the time out for no sync info from master If the source is Master it will not quit until DIP switches are changed or the board is powered off Duplicate control is implemented If the frame ID of a data frame is equal to the last received frame ID the frame is identified as a duplicate The frame is ack ed but no data is given to user Note After power on the boards establish contact get synchronised The master board keeps the boards in synch by transmitting a timestamp every 4 seconds approximately If the slave does not get a timestamp for 25 seconds approximately it starts to transmit timestamp requests In Advanced Byte Transfer Mode LED3 is set on when a message is transmitted and LED4 is set on when a message is received This is done to visualize the RF activity Please read the examples below Example 1 Every time Master transmits a timestamp a short flash can be seen on LED3 at the Master board And if the Slave receives the timestamp a short flash can be seen on LED4 at the Slave board Example 2 When a Slave is reset it starts to transmit requests for timing info This can be seen as short flashes on LED3 Then when the slave receives timing info from Master a short flash can be seen on2. If no ack for 5 attempts LEDI off Use next frequency randomly selected next time END LOOP The message is transmitted at 19231 bps Manchester encoded that is 241923 1 38462 signal elements sec CRC 16 bits is used LEDI will go on if an ack is received and will go off if no ack is received during 5 attempts Note If LED1 at Master is ON it indicates 2 way communication OK because e Master has to transmit message correctly e Slave has to receive message correctly e Slave has to transmit ack correctly and finally e Master has to receive ack correctly only then is LED1 set ON A new message is transmitted every 100 msec approximately 11 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 Combination 2 Slave The following procedure is implemented for a 2 Way Link Test Slave LOOP Enter receive mode on frequency n n 0 24 Search for Message Message characters A Z 26 bytes If Message found LEDI on Enter transmit mode on frequency n Transmit ack and CRC checksum Ack Message characters A Z 26 bytes If no Message for 5 attempts LED1 off Use next frequency randomly selected next time END LOOP The ack is transmitted at 19231 bps Manchester encoded that is 2519231 38462 signal elements sec CRC 16 bits is used LEDI will go on if a message
3. LED4 and the flashing of LED3 stops This can be used to visually identify Master and Slave are sync ed Example 3 When a Master is reset it will transmit timestamps for approx 3 seconds to be sure Slave is resync ed The LED3 will flash during this period it appears to be on due to short time between transmissions The Slave will flash LED4 for every timestamp 17 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 it receives it will not receive all because the jump pattern is updated when a timestamp is received Automatic hopping between 25 frequencies is implemented to meet the FCC part 15 247 regulations The units will jump approx 10 times second There is an internal timer in both Master and Slave The timer is a 3 byte 24 bit timer the 3 bytes are called Timer Upper Timer High and Timer Low A Timer Low overflow will generate an interrupt every 0 37msec approx with a 11 0592MHz xtal connected to the micro controller In the interrupt service routine ISR the Timer High and Timer Upper registers are updated Timer High will overflow every 256 0 37msec 94 8msec This overflow is used to indicate time to change frequency a flag is set in ISR the flag is tested in the main program Whenever Timer_High overflows Timer_Upper is incremented When the main program detects time to change fre
4. Q Q O 0 Q QO Q 9 nc gt Q LE EE EEE m a rj x DEE ji ni En C2 Z EN 33 Y200 R213 2 OSC2 32 LT us lien T p OSG1 133 T Pa vss jI U200 aves 30 211 R212 on 29 22p Fa PIC18LF4320 PE C21 C213 nc 100nF 190n 2 e EADER 10 R210 100k DTE RTS DTE CTS MICRFSOSDEVI Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tet 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 Q300 D300 BCP56 10 __ gt RFVDD DC JACK gt DIGVDD 100nF D303 LED302 K a POWER MICRFSOSDEVI Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tet 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 Si i Sj L L L a a a a a a gt gt R1 6k2 c2 ci C3 nc R2 100nF 10nF OR Ni Yi wo wo a a a a gt L va a 9 O co N oO L a m a a a a a N C9 a a E a a 1 5pF 2 a Zz z 2 2 Zz a gt oO lt 6 e 0 gt 1 R Os 72 S Q 24 Tvi j 41 RFGND gt gt O a OXTALOUT R3 18k HTH ca 2 2 ll PTATBIAS XTALIN 22 TSX 10A 16MHz lI 1 5pF V2P 3 RFVDD cs H2 lt _Jcs 4 RFGND scLk 2 lt __ ScCLk L1 C5 ANT lt gt 50ohm line 50ohm line 5 ANT MICRF505 lo 20 lt gt 10 C6 C4 8n7 8p2 el MLF32 19 DATAIXO 2p2 Bp3 I RFGND DATAIXO lt gt ull eno DATACLK LS lt gt DATACLK R4 17 l 8 NC L NC E 5 RFVD
5. D dis 2 2 929 3 te a gt oO T 3 3 Q Q O Li L Q O a a Zz O o a e lt wo Ko 9 ite LD S O TP1 TP2 o om R5 m a Mi 82k RSSI a a a a a a gt gt gt C7 C10 C12 C13 Ri nc nc 1n 10n 1n 1n MICRF505DEV1 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 R101 IO MCU OO JO 505 R102 ik 4k7 R103 SCLK_MCU CLK 505 R104 1k 4k7 CS_MCU AV S_505 R106 1k 4k7 R107 100k DATAIXO_MCU EUT JDATAIXO 505 R108 560k DATACLK MCU R109 ATACLK 505 R110 nc IO MICRF505DEV I Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970
6. MICRF505 User Manual for Development System Rev 2004 05 07 MICRF 505 User Manual for Development System 915 MHz Rev 2004 05 07 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 07 Table of contents ka Todt a P E ka e ka E cats ER 2 Development Board Inputs Outputs ese ede kode de aa vey ea Da ee owen 2 1 Summary of DIP Switch Setting w reisi ewe keke xek so pose no kek kr KA 3y Getta Started eden K RE Test Modes RS 5y 2 WwWay Link Test Mode ua 6 Interface in Byte Transfer Modes EE eee kereke ee ek cues kek senate daki rk KA 1 Simple Byte Transfer Mode junusmanenmstanssinisiktmeinesisi knes avdokosasosposson 8 Advanced Byte Transfer Mode sss 97 PC program RE Test Bench 5 x5 o s K l a in Sad eden 10 Firmware change upgrade u erkeke kerx eee keke keke kk kek esse sed 11 SJ ae EM REE kan a a Str al kaa a O RE eta dan Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 07 1 Introduction This document MICRF505 User Manual for Development System describes the features of the development system The development system is made of 2 development boards For details on the MICRF505 transceiver a product in the RadioWire product lin
7. TAIXO pins refer Development Board Inputs Outputs Set the boards in Simple Byte Transfer Mode all DIPs off Connect each board in Simple Byte Transfer Mode to a PC running HyperTerminal Send characters or text files between the PCs Note No ARQ is used number of data packets getting through depends on link quality Make sure the cable is 1 1 and that RTS CTS TX RX and GND are used Make sure the data format is 9600 8 N 1 and hardware handshake is used Also make sure the jumpers for RS232 use are in place Finally set two boards in Advanced Byte Transfer Mode Set one as Master the other as Slave Only DIP3 ON for the Master both DIP3 and DIP4 ON for the Slave Select RS232 interface that is make sure RS232 jumpers are in place and connect the boards to PCs Start HyperTerminal or other terminal program and observe that text written on one PC are received and displayed on the other one and v v Try e g to transmit a textfile note textfile from one PC to the other ARQ is used in this mode that is all data packets should get through Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 4 RF Test Modes In RF Test Modes only 1 frequency 915 0MHz is available Or the User can enter another frequency through the PC program refer to chapter 9 DIP switch set
8. an Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 2 1 Summary of DIP Switch Setting To select mode of operation bring DIP switches ON or OFF according to the table below The modes of operation described in detail in the following sections are e RF Test Modes Enter RX mode TX a carrier TX1010 or enter PC configurable mode e Byte Transfer Mode Transfer bytes between e g 2 PCs Select Simple or Advanced e 2 way Link Test Mode Use 2 development boards to communicate If LED1 goes on it indicates Link OK The 4 DIP switches labelled I 2 3 4 are placed in a single component In addition ON is written on the component DIPI DIP2 DIP3 DIP4 Mode of operation OFF OFF gt Byte transfer modes OFF OFF Simple Byte Transfer Mode OFF ON reserved ON OFF Advanced Byte Transfer Mode Master ON ON Advanced Byte Transfer Mode Slav OFF ON gt Reserved OFF OFF reserved OFF ON reserved ON OFF reserved ON ON reserved ON OFF gt 2 Way Link Test Modes OFF OFF LINK Test Master OFF ON LINK Test Slave ON OFF reserved ON ON reserved ON ON gt RF Test Modes OFF OFF RF Test Rx OFF ON RF Test Tx1010 ON OFF RF Test TxCarrier ON ON Enable Configuration via PC Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User M
9. and from the PC select RF TestBench gt Development Board Commands Make sure the board is in transmit mode first When leaving PC mode The board will use the default control word already programmed into the flash program memory or it will use the control word entered from the PC program and stored in the EEPROM Which one to select the source of the control word is selected in the PC program select FRF TestBench gt Development Board Commands From the PC program try e g to change the output power level PA setting and observe the effect on spectrum power consumption and link range The EEPROM control word can be used in RF Test Mode 2 way Link Test Mode and Simple Byte Transfer Mode It will not be used in Advanced Byte Transfer Mode If the EEPROM control word is used in 2 Way Link Test Mode No frequency jumping is done only the control word stored in EEPROM will be used Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 Suggestions for RF Testing 1 Set one board to transmit a carrier Use a spectrum analyser to observe the frequency spectrum Repeat for transmit 1010 2 Set one board to receive mode and another to transmit 1010 Use an oscilloscope to observe the tx ed and rx ed data Data I O Set tx ed data as the trigger source 3 Set
10. anual for Development System Rev 2004 05 06 3 Getting Started Before power up of the development board e Get familiar with the inputs outputs refer to Development Board Inputs Outputs e Select mode of operation via DIP switches e If Byte Transfer Mode Simple or Advanced is selected Select interface Insert the 4 jumpers DTE RTS DTE CTS DTE RX DTE TX to select RS232 interface Remove the jumpers to select logical level interface connect to e g another micro controller Note Always power on the boards with the RS232 cable disconnected After power on Connect a RS232 cable if wanted To get familiar with the boards the following sequence is suggested First try the 2 way Link Test Mode On one board set only DIP1 ON This will be the Master On the other board Set DIPI and DIP4 ON This will be the Slave Try to increase decrease the distance between the boards and observe LEDI at the boards If LEDI at the Master is on A 2 way link 1s established from Master to Slave and back to Master LED1 at the Slave will be on as long as the link from Master to Slave is OK Then try the RF Test Mode Common to all RF Tests DIP1 and DIP2 ON Set one board to transmit 1010 DIP3 OFF DIP4 ON and another board to receive DIP3 and DIP4 OFF Observe LEDI on the receiving board indicates received 1010 OK Optionally use an oscilloscope to observe the DATACLK and DA
11. ard is Slave Messages the alphabet are transmitted back and forth between the two boards This mode is useful when testing radio communication in different environments testing antennas testing encapsulation etc Automatic hopping between 25 frequencies is implemented to meet the FCC part 15 247 regulations CRC is implemented A LED LED 1 indicates link OK e Simple Byte Transfer Mode In this mode the user can enter a number of bytes into a development board The board will tell the user to stop start entering bytes via the CTS pin If there is no delay between bytes 64 bytes can be entered before the board says stop The board will then transmit the bytes and say start to user If no user bytes are entered the board will search for RF messages and if found output the message to the user if user is ready indicated by the RTS pin CRC is Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 07 implemented messages received through RF are only given to user if the CRC is OK Advanced Byte Transfer Mode In this mode of operation one board is Master and another board is Slave Operates like the Simple Byte Transfer Mode except When transmitting user data the board will construct a frame by adding frame type frame ID and sync info Automatic hopping between 25 frequencies is implement
12. de to test range and error rate Combination 2 can be used to test parameters like deviation and transmit spectrum Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 Combination 3 Transmit carrier The board will enter transmit mode and transmit a carrier that is no modulation is applied This can be used to check the frequency spectrum the output power and the current consumption Combination 4 Enable configuration via PC This setting is also referred to as PC mode Refer to the chapter called PC program for details on the PC program Make sure the 4 jumpers DTE RTS DTE CTS DTE RX and DTE TX are in place Make sure the board is powered on without the RS232 cable connected and then connect the cable Entering PC mode Before any command is given from the PC the RF chip will stay in receive or transmit mode depending on the selected mode before entering PC mode While in PC mode When a control word is sent from the PC to the board the board will store the entered word in EEPROM and program the RF chip with it It is possible to transfer a control word from 2 dialog boxes press the Transfer button inside the dialog box Main menu DRF TestBench gt Quick Setup or Main menu DRF TestBench DS Complete Setup Note If giving a TX1010 comm
13. ds jump to a new frequency channel approx 10 times sec Channels are used randomly Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 07 2 Development Board Inputs Outputs DTE RTS jumper DTE CTS jumper LEDI DTE RX jumper LED3 DIE TX Header for optional jumper b LED4 external i o LED2 Header for 1 DATAIXO MICRF505 interface 2 DATACLK 3 LD 4 RSSI RS232 connector 9 pin D sub 5 IO 6 SCLK 7 CS 10 Da 8 GND J203 JP102 MICRF505 S RF m 5 A I Transceiver S 2 H Y200 Ae Sr lan He A gt lt oa aa mi E mo mu FE C204 f SE g cans ED an Y201 W200 ZE SMA antenna r j gs Ti U mE connector O On Ea BE 3 C205p212 a 207 an 51 0304 O Ed Jumper for RF Power supply battery SR 5 S 7 power 6 9 volt J300 800 C 2 JP204 Ss UN ez measuremnet Center pin H li de S m Landes 5 e 2 3 DIP switches ICSP connector 1 2 3 4 Micrel Semiconductor 1849 Fortune Dr S
14. e Please refer to the appropriate data sheet For the latest updates on products related to RadioWire please visit www micrel com Outline of this document Following this introduction an overview of the board s inputs outputs is given Then a Get started chapter is included and the different modes of operation are described An overview of how to program update the firmware is also included Finally schematics are given Purpose of the Development system The development system provides hands on experience with the MICRF505 transceiver The user can use the included software and hardware or make a new program and flash it into the micro controller That is the user can use the boards both to evaluate the MICRF505 chip and as an aid in the development of a radio communication system A separate PC program is available Through this program it is possible to set the programming word for the MICRF505 chip both the frequency dividers and the control bits can be set At present this program is referred to as RF TestBench Main modes of operation of the development system e RF Test Modes The user can test the RF properties of the transceiver It is possible to transmit a 1010 pattern default 38462 transitions sec to transmit a carrier or to stay in receive mode searching for a 1010 pattern default 38462 transitions sec e 2 way Link Test Mode In this mode of operation one board is Master and another bo
15. e g power levels e Try to give a Transmit 1010 command gt RF TestBench Development Board Commands Make sure the dev board is in transmit mode first e It is possible to use the pre programmed settings stored in the flash program memory or the settings stored in EEPROM for the other modes of operation as well that is not only in PC mode Select Flash or EEPROM via a command in RF TestBench gt RF TestBench gt Development Board Commands Exception In Advanced Byte Transfer Mode only the pre programmed settings can be used Also note If EEPROM settings are used in 2 way Link Test Mode no frequency hopping will be done only the frequency and control bits stored in EEPROM will be used e If EEPROM settings is selected the board can be disconnected from the PC and the different modes of operation can be run and now the settings stored in EEPROM are used To use the pre programmed settings again Enter PC Mode DIP setting described above and give command from RF TestBench e Other possibilities are SRF TestBench gt Development Board Commands e Read out the firmware version number the firmware stored in flash program memory of the micro controller e Restart micro controller uC program like a power on reset e Reset EEPROM control word settings to default pre programmed settings e Read out the present EEPROM controlword 20 Micrel Semiconductor 1849 Fortune Dr San Jo
16. ed to meet the FCC part 15 247 regulations ARQ CRC and duplicate control are implemented as well Master is responsible for maintaining the link by transmitting timestamps If Slave is reset or gets out of sync it requests a timestamp from Master Development System Features 915 MHz band 25 pre programmed frequencies f0 903 MHz f1 904 MHz f2 905 MHz f23 926 MHz and f24 927 MHz Flash based micro controller PIC18LF4320 for easy firmware upgrade testing Plug directly into ICD2 from Microchip Antenna External antenna User interface RS232 interface or interface through I O pins 4 DIP switches to select mode of operation I LED to indicate power on I LED to indicate RF powered 4 LEDs to indicate status or control information Possible to use 5 external I O pins Possible to observe the interface between RF chip and micro controller via header pins Possible to measure RF part power consumption In 2 way Link Test Mode and Byte Transfer Modes Bits to transmit are Manchester encoded That is every bit is coded into 2 elements The bit rate is 19231 bps the element rate is 38462 elements sec that is the actual on the air rate is 38462 elements sec Power supply 6 9 volt DC Apply to the centre pin note External antenna connector Type SMA Automatic hopping in 2 way Link Test Mode and Advanced Byte Transfer Mode is implemented Development boar
17. here is no difference between master and slave in this mode Error detection CRC 16 bit is implemented Only 1 frequency is used no frequency hopping Duplicate control or ARQ packets being acknowledged or re transmitted are not implemented in this mode Data flow from UserA to BoardA then to BoardB and finally to UserB 1 If Board A is ready to get bytes CTS is active UserA enters bytes into BoardA 2 Bytes are buffered in BoardA When 64 bytes are entered or gt 5msec since last byte BoardA constructs a frame it adds preamble sync length and CRC BoardA then transmits the frame and BoardB receives it 3 When the frame is completely received by BoardB The CRC is tested If CRC is OK BoardB gives the data to UserB if UserB is ready RTS is active 15 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 Example how to use Simple Byte Transfer Mode User A connected to board A wants to transfer 6 bytes Hello User B connected to board B receives the bytes User A e Test if CTS at board A is active If CTS is active the board is ready to accept bytes from the user e Transfer Hello into the board using 9600 8 N 1 Transfer Isb of every byte first after the start bit Board A Read 6 bytes from User A Detect TX idle for gt 5 msec Format the packet to transmit the 6 b
18. is received and will go off if no message is received during 5 attempts Note If LED1 at Slave is ON it indicates 1 way communication OK because e Master has to transmit message correctly and e Slave has to receive message correctly only then is LED1 set ON After reset or if Slave gets out of Sync it starts to jump slowly It stays on every frequency a long time At least long enough for master to transmit a Message on all the frequencies Master Slave sync mechanism in 2 way Link Test Both Master and Slave have an internal timer with a period of approx 100 msec The internal timer of the master is never changed Whenever a period is reached timer wrap around the Master will enter transmit mode transmit a message turn to receive mode and search for ack If ack is received or not received At the next wrap around a new frequency is entered and the procedure is repeated The internal timer of the Slave is reset whenever a message from the Master is received Then the Slave enters transmit mode and transmits ack then it enters receive mode at the next frequency and start to search for a new message 12 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 6 Interface in Byte Transfer Modes In Simple or Advanced Byte Transfer Mode Interface to the board in the fo
19. l 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 CTS is an input to the DTE It is used to control data flow from DTE to DCE DCE brings CTS active to signal DCE ready for bytes from DTE DCE brings CTS inactive to signal DCE not ready for bytes from DTE Before DTE outputs bytes to DCE the CTS line is tested If CTS is active DTE knows that DCE is ready to receive bytes and DTE transfer the bytes on the TXD line Maximum number of bytes to transmit in one batch is 64 bytes The board will signal stop sending bytes by setting CTS inactive when 64 bytes are read Note the board can buffer 2 additional bytes Other bytes will be lost The bytes can be entered with random delay between them but if the data line TX is idle for more than 5 msec no new start bit the board assumes end of transfer from user After end of transfer is detected the buffered bytes are transmitted via the MICRF505 14 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 7 Simple Byte Transfer Mode DIP switch setting Combin DIP1 DIP2 DIP3 DIP4 Text 1 OFF OFF OFF OFF Note There is no Master or Slave in this mode of operation Combination 1 Refer to interface description in Interface in Byte Transfer Modes T
20. llowing way Select interface e Insert the 4 jumpers A B C D to select RS232 interface e Remove the 4 jumpers A B C D to select logic levels Connect jumper pins directly to e g a micro controller The board is treated as a DCE data communications equipment The connected user is treated as a DTE data terminal equipment That is a DCE DTE cable should be used This cable should be 1 1 that is Connect pin i on the DCE side to pin i on the DTE side The following pins are used referred to a 9 pin connector names related to DTE Pin Name DTE side Direction both DTE and DCE DTE DCE 2 RX tM 3 TX OO i 7 RTS OU ok 8 CTS k 5 Ground Interface setting Baudrate 9600 Number of databits 8 Parity None Number of stopbits 1 Handshake RTS CTS The interface works as follows Note that active state of RTS and CTS is low a logical 0 seen by the micro controller RTS is an output from DTE the user It is used to control data flow from DCE the board to DTE DTE brings RTS active to signal DTE ready for data bytes from DCE DTE brings RTS inactive to signal DTE not ready for data bytes from DCE Before DCE outputs bytes to DTE the RTS line is tested If RTS is active DCE knows that DTE is ready to receive bytes and DCE transfer the bytes on the RXD line 13 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Te
21. on in the main menu field If the Target not found warning pops up repeat steps above Identify and press the Program target device button in the main menu field Wait for programming to finish refer to the Output window and remove the development board from ICD2 e Optional Confirm firmware version via RF TestBench 21 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 ll Schematics 300 Serie POWER J101 HEADER 1 DIGVDD LOGIC 200 Serie LOGIC EXT DATA JP102 RFUNIT 100 serie DATAIXO 505 DATAIXO MCU DATACLK 505 DATACLK MCU RFUNIT 10 Serie Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 P200 CONNECTOR DB9 LO DIS 00 m Na O fr 16 7 pe 2 E DON C203 C204 C205 100n 100n DIGVDD vpn n VDD_1 a Q ol kow T T si R201 SW DIP 4 10R i EEE R202 100 R204 MOD G20 DTE_TX R20 00 JP20b 9 6u8 Hi R20 00 e U201 r N Q RS232 IN1 Q DATAIXO Qumi GES RS232 IN2 gt OUT2 RS232 OUT1 C208 RS232 OUT2 IN1 nc C1 IN2 C1 V INVALID Va FORGEOFF Ferske sj sjela ci ONN 9 9 NI 9 C209 22p 2 C2 FORCEON
22. one board in receive mode Turn the other board off and use a signal generator to input a 1010 pattern Increase Decrease the output power level from the signal generator and observe LED1 and the rx ed data This can be used to test the sensitivity As long as the LEDI is on the board is able to read a 1010 pattern Although a random pattern should be used in sensitivity measurements this test gives an indication of the possible detectable signal level 10 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 5 2 way Link Test Mode DIP switch setting Combin DIP1 DIP2 DIP3 DIP4 Text 1 ON OFF OFF OFF Master 2 ON OFF OFF ON Slave In this mode of operation one card is Master and the other is Slave If not overruled from the PC program 25 frequencies are used refer to RF Test Mode Enable configuration via PC Automatic hopping between the 25 frequencies is implemented to meet the FCC part 15 247 regulations Combination 1 Master The following procedure is implemented for a 2 Way Link Test Master LOOP Enter transmit mode on frequency n n 0 24 Transmit Message and CRC checksum Message characters A Z 26 bytes Enter receive mode on frequency n Search for ack Ack Message characters A Z 26 bytes If ack found LED 1 on
23. ouble clicking PCxx bat xx sw version number e Read the welcome message e From the main menu select serial port COM1 or COM2 via Setup gt Communication port e From the main menu select RF TestBench gt Quick Setup or gt Complete Setup o Select Quick Setup if you want the program to calculate parameters based on basic parameters like xtal frequency RF frequency and bit rate Enter values and press the Calc button To see the resulting control word fields press the See Details button o Select Complete Setup to enter the control word fields manually Press the Calc button to see resulting frequencies etc Press More Info button to get more information 19 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 o Note that the complete resulting control word can be found in RF TestBench gt Overview e To transfer a control word to the development board from Quick Setup or Complete Setup Enter change the fields and press Transfer The entered values are stored in the micro s EEPROM e Observe the Status field If not Success is displayed please check connections power and try again In the following some suggestions are made for the user to get familiar with RF TestBench e Experiment with
24. quency it uses Timer_Upper as an index in a frequency look up table where the frequencies are randomly stored That is The next index will not give the next frequency but a random frequency The internal timer of the master is never changed The internal timer of the slave is updated whenever a frame from master is received 18 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 9 PC program RF TestBench The PC program is referred to as RF TestBench The RF TestBench can be used without the development board It can be used to calculate fields in the control word to enter into MICRF505 Examples Find settings for a specific bitrate RF TestBench should be self explaining Installation and running are straightforward e Copy the files into a separate directory e Start the program by double clicking PCxx bat xx sw version number If using RF TestBench together with an development board Make sure the DIP switches are set like this Combin DIP1 DIP2 DIP3 DIP4 Text 1 ON ON ON ON Using RF TestBench e Power on the board e Connect the development board to a PC via a cable o 1 1 RS232 cable o Make sure RTS CTS TX RX and GND are included in the cable pins 2 3 5 7 8 o Note Power on the board before connecting the cable to the board e Start RF TestBench by d
25. se CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 10 Firmware change upgrade The development boards are equipped with a socket for ICSP in circuit serial programming Through ICSP it is possible to download new firmware into the micro controller The download feature is made for use with MPLAB ICD2 from Microchip Connect the development board directly to the ICD2 using the cable from the ICD2 kit Via ICD2 it s possible to step through and debug firmware code as well That is Make your own program download it debug it and run it MPLAB IDE integrated development environment is available for free from Microchip s homepage PC compiler must be bought How to upgrade firmware xxx hex xxx firmware name skip reading this if you are familiar with ICD2 Connect ICD2 to your PC and to power please refer to ICD2 user manual Connect ICD2 and development board via the standard ICD2 cable Start MPLAB IDE Select Configure gt Select Device gt PIC18F4320 gt OK File Import gt xxx hex gt Open Programmer gt Select Programmer gt MPLAB ICD2 Programmer gt Settings gt Power Tab Make sure Power target circuit from MPLAB ICD2 is checked e Programmer gt Settings gt Program Tab Make sure all fields are checked in the Select Memories box gt OK Identify and press the Reset and connect to ICD butt
26. ting note that both DIP1 and DIP 2 are ON for all RF tests Combin DIP1 DIP2 DIP3 DIP4 Text 1 ON ON OFF OFF Receive mode only 2 ON ON OFF ON Transmit 1010 38462 sec 3 ON ON ON OFF Transmit carrier 4 ON ON ON ON Enable configuration via PC Combination 1 Receive mode only The board will continuously search for a 1010 pattern The board searches for a pattern with evenly spaced transitions the searched time between transitions is 26 micro sec 38462 transitions sec The board utilizes the on board bit synchronizer feature of the MICRF505 If a 1010 pattern is received LED 1 will be on If an error in the 1010 pattern is detected LED1 will be off for at least 2 second The LEDI off time is set to 2 second to let the user visually observe an error The received data is also clocked out directly to a header DATACLK and DATAIXO are available at the header close to the antenna side Test points in header Pin 8 is the one near the antenna side 8 Gnd 7 CS Chip Select 6 SCLK Programming clock line 5 IO Programming data line 4 RSSI Received signal strength indicator analogue level 3 LD Lock detect 2 DATACLK Data clock 1 DATAIXO Data input output Combination 2 Transmit 1010 The board will enter transmit mode and transmit a 1010 pattern 38462 transitions sec are made This can be combined with Combination 1 Receive mo
27. ytes Hello Enter transmit mode Transmit the packet using Manchester encoding Enter Receive mode Board B Receive a packet Un pack the bytes from the packet Test that the number of bytes is a legal number of bytes 1 64 Test that CRC is OK Test if RTS is active If RTS is active the user is ready to accept bytes from the board e Transfer the 6 bytes Hello to the User Transfer Isb of every byte first User B Read 6 bytes from board Note Since no addressing is used other users let s say User C User D and User E will receive the 6 bytes as well If the boards are used in a network the message has to include some address information and the user s protocol has to handle it 16 Micrel Semiconductor 1849 Fortune Dr San Jose CA 95131 USA Tel 408 944 0800 Fax 408 944 0970 MICRF505 User Manual for Development System Rev 2004 05 06 8 Advanced Byte Transfer Mode DIP switch setting Combin DIP1 DIP2 DIP3 DIP4 Text 1 OFF OFF ON OFF Master 2 OFF OFF ON ON Slave Make sure one board is master and one is slave This mode of operation has a similar functionality as Simple Byte Transfer Mode in addition some advanced features are included described below Error detection CRC 16 bit is implemented Stop and wait ARQ packets being acknowledged or re transmitted is implemented This means A source Master or slave sends a frame to a
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