Starter Kit and User Manual for the HelloDevice 1200
Contents
1. 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 jp2 Figure 3 3 The HelloDevice 1200 External Interface Pin Symbol Description 1 11 BAO BA10 Dual Port RAM Address 12 19 BDO BD7 Dual Port RAM Data 20 GND Ground 21 Write Dual Port RAM Control Signal Write 22 CE Dual Port RAM Control Signal Chip Enable 23 Read Dual Port RAM Control Signal Read 24 IRQ Dual Port RAM Control Signal IRQ 25 Busy Dual Port RAM Control Signal Busy 26 Reset Microprocessor Reset 27 32 Not Used 33 35 LEDO LED2 Ethernet Status Indicator LED Tx Rx Collision 36 Tx RJ45 Connector Ethernet Data 37 Tx 38 Rx 39 Rx 40 Vec Power Supply Vcc Table 3 1 Pin Assignment of the HelloDevice External Interface Starter Kit and User Manual for the HelloDevice 1200 3 2 Power Supply Voltage Supply 5V DC 10 Current Supply 200mA or lower 3 3 Microprocessor Specifications Scenix SX52BD 8 Bit Microprocessor 4 Kbytes Program Memory 52 pin PQFP See Figure 3 1 part 2 3 4 Ethernet Interface The HelloDevice is connected to an Ethernet hub or switch by the RJ45 connector on the HelloDevice Demo Board Distances of up to 100m are supported 3 4 1 Ethernet Controller2. MAC Media Access Control address is total 6 bytes and it is composed of 3 bytes organization code and 3 bytes product code MAC address of HelloDevice is composed of 00 01 95 which is a company code and xx xx xx which is a product code E g 00 01 95 01 aa 08 Starter Kit and User Manual for the HelloDevice 1200 DB Setting for BootP x MACType i MAC Length fe IP 192 168 1 15 MAC Joo fo1 95 foa fo2 03 Gateway Addr 192 168 1 1l Subnet Mask 255 255 255 0 Cancel Figure 4 9 BOOTP Database Record Input Window Enter MAC address IP address of HelloDevice 1 and 6 should be always entered for H W address type and H W address length items for Ethernet MAC address is printed on the sticker on the Ethernet controller chip of HelloDevice main board Figure 4 9 shows an example setting of 00 01 95 04 02 03 MAC address and 192 168 1 15 IP address Since the BOOTP function of HelloDevice is working by using broadcast message you don t have to enter gateway address and sub net mask 3 Click Add button to finish database editing The records entered in step 2 are added to the IP database 4 Launch the functions of BOOTP by pressing the BootP start button The HelloDevice Utility will then operate as a BOOTP server Note that the message on the Status bar will change from Monitoring to Listening BOOTP request If HelloDevice Utility gets BOOTP request from a certain HelloDev
3. index html dpram jar and 404 html files in the folder are used 1 Modify index html file in DPRDemo folder Enter IP address of the HelloDevice currently in the IP address parameter associated with Java applet within index html file Save the file without modifying other parameters lt HTML gt lt HEAD gt lt TITLE gt Simulator lt TITLE gt lt HEAD gt lt BODY gt lt H1 gt DPRAM R W demo lt H1 gt lt APPLET CODE Simulator ora VSedpram jar WIDTH 520 HEIGHT 450 gt lt param name polling value 1 gt lt APPLET gt lt BODY gt lt HTML gt Figure 5 8 Modifying index html for Dual Port RAM Communication Note Several parameters can be used for java applet of dual port RAM communication IP address the HelloDevice IP address TCP port Always set as 6001 Polling interval 10 ms resolution Set proper value according to the application e g polling value 1 means that dual port RAM will be polled at every 10 ms 2 Build and upload web files in DPRDemo folder Follow the procedure described in section 5 1 with web files in DPRDemo folder instead of FirstDemo folder to upload these web pages to the HelloDevice 23 Starter Kit and User Manual for the HelloDevice 1200 3 When uploading has been completed run the web browser to go to http 192 168 1 15 index html page If the web page in figure 5 9 is not displayed retry the procedure 2 If it continues
4. 17 18 33 mov datalo Scratcho Write the value of Scratch0 to Data line refer to 19 26 clrb dpramcs Chip Enable pin 31 nCE LOW clrb rw Set Write Active pin 30 nWR LOW setb rw Clear Write Active pin 30 nWR HIGH setb dpramcs Chip Disable pin 31 nCE HIGH retp Generating interrupt into the HelloDevice Before you generate an interrupt to the HelloDevice you should specify the address and length of the data to be read by the HelloDevice In this sample your device will specify the address value at InAddrMSB and InAddrLSB of interrupt control register location by writing as such You will also specify the data length at InLenMSB InLenLSB by writing such And then you will have to write data to the specified location Next you will have to generate interrupt by writing OxAA value to INTR_L register Then interrupt is generated into the HelloDevice and the HelloDevice will read the data written by user device The following is a sample code InAddrMSB equ S7F4 InAddrLSB equ 7F5 InLenMSB equ 7F6 InLenLSB equ 7F7 OutAddrMSB equ STE8 38 Starter Kit and User Manual for the HelloDevice 1200 OutAddrLsSB equ STEQ OutLenMSB equ STFA OutLenLSB equ 7FB INTR R equ 7FE INTR_L equ 7FF Write specified address into InAddr registers mov DPROffsetMSB InAddrMSB amp ff00 gt gt 8 mov DPROffsetLSB InAddrMSB amp SOOff mov w AddressMSB call dpra
5. Demo Screen and Dual Port RAM of the HelloDevice 6 Connecting User Devices 25 Starter Kit and User Manual for the HelloDevice 1200 In order to communicate with your device connected to the HelloDevice 1200 from the your PC you should implement Internet socket program of your PC It should send a TCP IP based Dual Port RAM Read Write command to the HelloDevice When the HelloDevice receives this command it will change the value of specified location of its Dual Port RAM or sends current value of specified location to network Finally this value is transmitted to the Internet socket interface program of you PC Figure 6 1 shows a basic concept of remote data communication by using the HelloDevice You should implement an Internet socket program or Java applet based on the HelloDevice communication protocol You should also implement hardware according to the specification of the HelloDevice Dual Port RAM interface Refer to the Data Sheet attached to this manual for further information of the HelloDevice Dual Port RAM CY7C136 User s Device 192 168 1 15 TCP 6001 Port Interrupt Data 0 7 Address 0 10 HelloDevice Communication Dual Port RAI Dual Port RAM Read Respons Read Write Command Ethernet my 192 168 1 23 192 1 User Figure 6 1 Remote data communication of the HelloDevice application You should consider a couple of point of view in designing Dual Port RAM communication system by u
6. IP address currently set in the Found IP item will be displayed MAC po ifor os ifon foo sos Found IP 192 168 1 15 Received Figure 4 10 IP address check using the IP Find function 8 Check if the HelloDevice web server operates correctly The HelloDevice has a built in 404 html file in flash memory factory default To check the functions of your web server run any web browser and connect to the address http 192 168 1 15 The web page in Figure 4 11 verifies that the HelloDevice works successfully as a web server Starter Kit and User Manual for the HelloDevice 1200 i E E Figure 4 11 HelloDevice default Web page 4 3 2 Changing IP address To change the IP address initialize the IP address to the factory default value of 0 0 0 0 and repeat the procedures of setting an IP address in section 4 3 1 At this point ask your network administrator for a new IP address For example let s try to change IP address of 192 168 1 15 to 192 168 1 18 1 Initializing IP address Before you initialize IP address of HelloDevice you have to remove IP MAC address data stored in your PC This information is stored in ARP cache and you can make sure what is stored in the cache by using the following command This is the response of the command in case that IP address of user PC is 192 168 1 100 gt gt arp a Interface 192 168 1 100 on Interface 2 Internet Address Physical Address Type 192 168
7. The Ethernet Controller provides the functions of framing and addressing data and detecting and avoiding errors and collisions See Figure 3 1 Part 3 Specifications a RealTek Full duplex Ethernet Controller RTL8019AS Supports 10 base 5 10 base 2 and 10 base T compliant with IEEE802 3 16 Kbytes SRAM NE2000 Compatible 3 4 2 RJ45 Connector Shielded Connector compliant with AT amp T258 specifications In Demo board Starter Kit and User Manual for the HelloDevice 1200 Description Red Line White with orange Orange White with green Not used Blue Not used White with blue Rx Green Not used White with brown SININ AJS INJ e Not used Brown Figure 3 4 RJ45 connector 3 4 3 Status Indicator LED s There are four status indicator LED s which indicate the following Power LED Indicates the Power On status of the HelloDevice RxLED Indicates that the Ethernet controller is receiving Ethernet packets from the network If it is correctly connected to the network this LED will blink when packets are received TxLED Indicates that the Ethernet controller is sending packets Before setting the HelloDevice network configuration this LED will blink every second After network configuration if connected correctly this LED blinks only in response to requests from the user s PC for example ping or server activity Collision LED Indicates that one or more Ether
8. Tx to Rx of the other side Straight Ethernet cable Cross over Ethernet cable Rx Rx Rx Tx ke T Tx Rx You can emulate the 1 1 networking if you hook up cross over cable between your PC and the HelloDevice without being affected by network routing Take following steps for IP address reconfiguration 1 Remove Ethernet cable from your PC 2 Directly hook up cross over cable between your PC and the HelloDevice 5Vpower suply User PC Cross over Ethernet Cable 49 Starter Kit and User Manual for the HelloDevice 1200 3 Configure the network environment set up of your PC so that it can communicate with the HelloDevice TCP IP parameters of network configuration should be modified temporarily e g Let s say that IP address of the HelloDevice is 192 168 1 23 and that of your PC is 172 168 1 22 Modify the IP address of your PC and gateway as shown in the following picture 142 166 1 22 255 255 755 O You may modify the IP address to different IP address of 192 168 1 xx other than 192 168 1 23 since those addresses can also be working in the subnet Then press OK button You will have to keep in mind your original network environment set up parameters since this is temporary set up for IP address reconfiguration of the HelloDevice 4 Make sure if your PC can communicate with the HelloDevice by using ping utility gt gt ping 192 168 1 23
9. be careful in implementation of communication routines since the memory mapping rule should be reflected in the memory based communication routines For example you may reserve the 1016 bytes of the memory area as InBox from which the HelloDevice can read data The address of this area may be from 0x000 to 0x3F7 You may also reserve the rest of the data area 0x3F8 0x7EF as OutBox from which your device can read data In this case you will have to implement the host side application to read data from this InBox area You can read device information to make your device write device specific data to this area If interrupt based communication is required interrupt control registers will be used in the communication Typically there are two cases that users use interrupt registers in the communication A the HelloDevice requests your device to read data from its Dual Port RAM area This interrupt is used when the HelloDevice want to inform the your device of the fact that it has updated the 27 Starter Kit and User Manual for the HelloDevice 1200 certain area of Dual Port RAM Then your device may perform certain device specific tasks by using the data read from the memory e g an interrupt service routine of your device may read specified memory area first and then it may display the LCD screen from this data or may drive actuators from the data Note the HelloDevice does not have any interrupt reentrancy protection mechanism
10. power supply and Ethernet Set the IP address of HelloDevice Check the HelloDevice network connection 4 1 Installing Utility Software Run setup1x00 exe in the HelloDevice CD ROM from the PC that is connect to the network Setup1x00 exe can be run in Microsoft Windows 95 98 NT and 2000 Select Complete and press Next button in the setup type display screen Setup Type Choose the setup type that best suits your needs sca oped Figure 4 1 Initial screen of the HelloDevice utility software installation program Starter Kit and User Manual for the HelloDevice 1200 The setup program will automatically be installed onto c Program Files HelloDevice utility folder fe HelloDevice Utility Software for HD 1x00 Setup Installing HelloDevice Utility Software for HD 1x00 The program features you selected are being installed Ingeei eipilelel Figure 4 2 Screen that shows the HelloDevice utility software is being installed Once setup is completed a shortcut icon of the HelloDevice Utility Software is created on the desktop and on the program menu If the following HelloDevice utility main window appears when the shortcut is clicked the setup has been successfully completed lt p HelloDevice Utility Software for HD 1x00 eprint IP Eina sist Clee Figure 4 3 Initial screen for the HelloDevice utility software Starter Kit and User Manual for the HelloDevice 1200 4 2 Connecting Hardw
11. 1 15 00 01 95 04 02 03 dynamic 192 168 1 23 01 a0 11 34 11 0d dynamic Remove the corresponding item to the current HelloDevice information by using the following command 16 Starter Kit and User Manual for the HelloDevice 1200 gt gt arp d 192 168 1 15 Now you are ready to initialize current IP address of HelloDevice Go to IP Setup window and click IP Clear button to display a window where you can clear the IP address If you want to clear the current IP address of 192 168 1 15 just enter the current setting of the IP address as shown below in figure 4 12 and click OK button Then the present IP address of 192 168 1 15 set on HelloDevice will be changed to factory default of 0 0 0 0 192 168 1 15 Figure 4 12 IP address Clear window 2 Verifying the initialization of an IP address Check if Tx LED of HelloDevice blinks When an IP address is initialized the HelloDevice will send the BOOTP request message The Tx LED of the HelloDevice will keep blinking 3 Resetting an IP address To reset an IP address to 192 168 1 18 edit modify the contents of the IP address database using the Edit function and repeat the procedures of setting an IP address in section 4 3 1 p P e e 192 168 P Figure 4 13 IP address change using the Edit function in the IP address database 17 Starter Kit and User Manual for the HelloDevice 1200 5 Quick Tour This chapter shows how to build a homepage on the HelloDe
12. Buf 0 DPRGet 2 DPRAM address tmp offset gt gt 8 commandBuf 1 tmp tmp offset amp OxOOFF commandBuf 2 tmp 3 DPRAM length tmp length gt gt 8 commandBuf 3 tmp tmp length amp OxOOFF commandBuf 4 tmp 4 Interrupt fla commandBuf 5 0 0 Do interrupt commandLen 6 Send command to the HelloDevice err sendto sock amp commandBuf commandLen 0 struct sockaddr amp clientAddr sizeof clientAddr a if err 1 perror nsend error n exit 1 Allocate buffer for incoming packet ResponseBuf calloc length 4 sizeof char Receive incomming packet lenReceived recvfrom sock ResponseBuf not generate Interrupt to device AA Generate 44 Starter Kit and User Manual for the HelloDevice 1200 length 0 struct sockaddr amp clientAddr amp clientLen if lenReceived lt 0 perror nError receiving n exit 0 Store memory status for future use for i 0 count 0 i lt length i printf 2 2x t ResponseBuf it 4 if count 9 count 0 printf n countt printf n n Display incoming packet size printf nsd bytes received n n lenReceived Free free ResponseBuf Close TCP socket TCPSocketClose Process DPRAM Write void DPR Writ
13. Flag Max 1450 bytes 0x000 0x7EF Table 6 5 the HelloDevice Dual Port RAM Write protocol If you want to generate interrupt into user device after writing data to Dual Port RAM you have to set interrupt flag as OxAA when you transmit TCP packet Let s say that you want to write a 4 byte data of 0x12345678 to the Dual Port RAM address OxOFF of the HelloDevice you should send the command as listed in table 6 6 0x78 0x00 OxFF 0x00 0x04 OxAA 0x12 0x34 0x56 0x78 Command Address Length Interrupt Data Table 6 6 Example of Dual Port RAM Write command 6 3 Setting Up Hardware 6 3 1 the HelloDevice Dual Port RAM Demo Board A Demo Board is designed to supply power to the HelloDevice to provide interface with Ethernet by RJ45 connector and to communicate with your board through Dual Port RAM using Dual Port RAM interface connector Depending on the your board implementation he can run simple I O control demo and A D converter demo by using built in components of the Demo Board Demo Board is composed of the following modules The HelloDevice interface 40 pin connector for the HelloDevice interface User board interface 1 channel A D converter 4 point Input switch 4 point output LED 26 pin Dual Port RAM interface connector 20 pin I O A D converter interface connector Power adapter jack 32 Starter Kit and User Manual f
14. HelloDevice 21 Starter Kit and User Manual for the HelloDevice 1200 This procedure is displayed on the Progress bar and when it has finished a Flash download completed dialog box will appear 7 Enter URL http 192 168 1 15 index html in the web browser and try connecting The web page in Figure 5 7 will appear If not you might not have entered the value of the IP address correctly and as a result the web server will not operate successfully If the web page fails to appear check the IP address setting of web server and reload the file 12 Industrial Web Seaver Microsoft internet Explor File Ect Wew Forces Took Hebe 0 O AJA a a coe Biop Rehesh Hone Seach Favorites Hishow a bee 152 61 Sines hired SENA TECHNOLOGIES WwWw sena com lof vice Embedded web server for numerous Devices Figure 5 7 HelloDevice FirstDemo Web page screen A user s homepage can be customized in the same way as described above 22 Starter Kit and User Manual for the HelloDevice 1200 5 2 Dual Port RAM Communication demo using Demo Board The Starter Kit provides a Demo Board and sample programs for the demo of Dual Port RAM communication This section describes how to run the demo Use sample web files of the HelloDevice Utility Software in Demo DPRDemo folder to read and write the contents of Dual Port RAM of the HelloDevice See Figure 5 1 for the location of the sample files
15. RAM 3 6 Flash Memory 3 7 Firmware Setting Up the Hardware 4 1 Installing Utility Software 4 2 Connecting Hardware 4 3 Setting Up Network Quick Tour 5 1 Building a Homepage 5 2 Dual Port Communication Demo Using Demo Board Connecting User devices 6 1 Dual Port RAM Communication 6 2 Communication Protocol 6 3 Setting Up Hardware 6 4 Sample Programs Appendix A Dual port RAM Data Sheet Appendix B A D Converter Data Sheet Appendix C IP address configuration by using crossover Ethernet cable Starter Kit and User Manual for the HelloDevice 1200 1 Before You Start Items supplied in the HelloDevice 1200 Starter Kit HelloDevice 1200 Main Board 5V Switching Mode Power Supply SMPS or Power Adaptor Hardware HelloDevice 1200 Demo Board Dual port RAM Interface Cable 26 pins 2 5mm pitch A D Converter amp I O Interface Cable 20 pins 2 5mm pitch HelloDevice Utility Software and Sample Demo Program Software Download the latest version at http www sena com User s Manual Operating Environment Voltage Supply 5V DC 10 Current Supply 200mA or lower Operating Humidity 0 95 Operating Temperature 0 50 Degrees Centigrade Technical Support Sena Technologies Inc 210 Yangjae dong Seocho gu Seoul Korea 137 130 Phone 82 2 573 7772 Fax 82 2 573 7710 Email support sena com http www sena com Start
16. TECHNOLOGIES Starter Kit and User Manual for the HelloDevice 1200 Version 1 2 Starter Kit and User Manual for the HelloDevice 1200 Version 1 1 Last revised on January 3 2001 Printed in Korea Copyright Copyright 2000 Sena Technologies Inc All rights reserved Sena Technologies reserves the right to make changes and improvements to its product without providing notice Trademark The HelloDevice is a trademark of Sena Technologies Inc Windows is a registered trademark of Microsoft Corporation Ethernet is a registered trademark of XEROX Corporation Notice to Users When a system failure may cause serious consequences protecting life and property against such consequences with a backup system or safety device is essential The user agrees that protection against consequences resulting from system failure is the user s responsibility This device is not approved for life support or medical systems Changes or modifications to this device not explicitly approved by Sena Technologies will void the user s authority to operate this device Company Address Sena Technologies Inc 210 Yangjae dong Seocho gu Seoul Korea 137 130 Telephone 82 2 573 7772 Fax 82 2 573 7710 Email info sena com Website http www sena com Table of Contents Before You Start Overview Main Board Specifications 3 1 External Interface 3 2 Power Supply 3 3 Microprocessor 3 4 Ethernet Interface 3 5 Dual Port
17. Thus the processing time of the interrupt service routine should be less than 5 ms since the minimal time required to generate interrupt from the HelloDevice is 5 ms This is the case that next interrupt may be generated before the previous interrupt service routine is finished There will be no problem if your device services interrupt from the HelloDevice in less than 5 ms If a host application sends data at the interval larger than 5 ms there may not be any problem B Your device requests the HelloDevice to read data from Dual Port RAM area This interrupt is used when your device want to inform the HelloDevice of the fact that it has updated the certain area of Dual Port RAM Then the HelloDevice will read this data first and then it will send this data to the host PC connected to the HelloDevice by TCP IP protocol e g your device may be composed of sensors for temperature pressure or some other sensing units Whenever the sensor output is updated your device may notify the fact to the HelloDevice Eventually the data will be sent to application of host PC Note Interrupt generation interval of your device should be larger than 5 ms since the minimal time required to process interrupt from your device is 5 ms Fig 6 3 shows the flow chart that the user device generates interrupting into the HelloDevice for sending data to PC Fig 6 4 shows the flow chart that HelloDevice generates interrupting of dual port ram Read to the user
18. are The HelloDevice 1200 interfaces with your device through external interface pins only Therefore RJ45 connector and LED along with microprocessor should be implemented on the your device side and the HelloDevice 1200 will be plugged into it The demo board in Starter Kit can be a good reference for your device design Figure 4 4 shows the HelloDevice 1200 Main Board and Demo Board ADCLIO ADINTA year ran Ta 12 1 6 Data i ADWR 4 ey 9 ADRD 13 Input Address ria 5 17 20 Output Date 10 ADC utpu nbUSY NNNNN OU SAN 3i INPUT1 y 327 HelloDevice DPRAN 4 fis Figure 4 4 The HelloDevice 1200 Main Board and Demo Board 1 Plug Main Board onto the Demo Board through JP1 and JP2 connectors of the Main Board 1 HelloDev At this point make sure that the JP1 JP2 of Main Board are connected to the corresponding JP1 JP2 of the Demo Board and pin numbers of both Main Board and Demo Board from 1 to 40 are connected properly Figure 4 5 shows a picture of the HelloDevice mounted on Demo Board correctly Note Be sure to check not to reverse connection The reverse connection makes fatal problem Fig 4 5 shows that HelloDevice is mounted on the demo board correctly Starter Kit and User Manual for the HelloDevice 1200 ADCEIO jt ADINTA DPRAN 22 Jiri VEC yn 9 ADAD 13 16 fi 2 12 Address 724 in anre 17 30 13 20 Data 25 21 nBUSY 26 AA E INPUTI a a3 77 emrrerereiers povererere
19. at maximum number of bytes that can be sent in Ethernet frame is 1500 bytes including header lengths of TCP IP Command Number of Byte 1 2 3 4 5 Read command Ox77 Dual Port RAM Data length Address 0x0000 0x07EF 0x000 0x05AA Read response Address of Response data Length of Response data Data value of the specified size Table 6 3 the HelloDevice Dual Port RAM Read protocol This is the command that will read specified address of HelloDevice Dual Port RAM and will be followed by the corresponding response Let s say that you want to read 4 bytes of data the address of which starts from 0x10 If the current data of that address is 0x12345678 it will be displayed like table 6 4 0x77 0x00 0x10 0x00 0x04 Command Address Length 0x00 0x10 0x00 0x04 0x12 0x34 0x56 0x78 Address Length Data Table 6 4 Example of Dual Port RAM Read command response 6 2 2 Writing a Dual Port RAM This command is used to change specified length of data in a specified location of Dual Port RAM It does not require any response from the HelloDevice The maximum writing data length is also limited to 249 0x0F9 31 Starter Kit and User Manual for the HelloDevice 1200 byte Type Number of Bytes 1 2 3 4 5 6 7 Write 0x78 Dual PortRAM Data length Interrupt Data command Address Ox001 OxSAA
20. device so that user device can read data from the HelloDevice The terminologies IN OUT used in the figure are described in terms of interrupt direction In the HelloDevice side it will be In if interrupt is generated into the HelloDevice from your device or vice versa The symbols of OUTAddr OUTLen INAddr INLen is described in Table 6 1 Interrupt control register 28 Starter Kit and User Manual for the HelloDevice 1200 Update data in Dual Port RAM Interrupt Figure 6 3 User device is generating interrupt into the HD1200 Write the address of data written Write the length of data written Generate interrupt Interrupt into user device INTR _L register OxAA nIRQpin LOW Read OUTAddr User device reads specified address of Dual Port RAM Read OUTLen User device reads specified length of the data Read data User device reads data From specified address By specified length Do something User device perform certain tasks by using the data read Figure 6 4 User device data handling process after HD1200 generates interrupt into the user device 29 Starter Kit and User Manual for the HelloDevice 1200 Symbol Address Description INAddrMSB Ox7F4 MSB Address of the data to be sent to host PC when interrupt is generated into the HelloDevice from user device INAddrLSB Ox7F5 LSB Address of the data to be sent to host PC when interrupt is generated int
21. e char commandBuf 1450 6 1 data 1450 1 int commandLen int offset length tmp int i err printf n nEnter offset in hex MAX Ox7FF scanf Sx amp offset printf nEnter length in digit MAX 1450 scanf Sd amp length printf nEnter value in hex scanf s data Re Initialize TCP socket TCPSocketInit Make TCP command commandBuf 0 DPRSet tmp offset gt gt 8 commandBuf 1 tmp tmp offset amp 0x00FF commandBuf 2 tmp tmp length gt gt 8 r r 45 Starter Kit and User Manual for the HelloDevice 1200 commandBuf 3 tmp tmp length amp OxOOFF commandBuf 4 tmp commandBuf 5 0xAA 0 Do not generate Interrupt to device interrupt for i 0 i lt length i commandBuf i 6 datal i commandLen 6 strlen data Send command to the HelloDevice err sendto sock amp commandBuf commandLen 0 struct sockaddr amp clientAddr sizeof clientAddr a if err 1 perror nsend error n exit 1 6 4 2 Using Java applet for communication AA Generate The program source codes with Java applets as demonstrated in section 5 2 are Simulator java RamPanel java Util java ValueDisplayPanel java and DPRComm java located at the HelloDevice installation folder Src java folder You can access a web site and control the linked device remotely by creating web pa
22. elloDevice web server The HelloDevice Utility Software provides the functions of building and uploading this type of file To make HelloDevice function as a web server perform the following steps 1 Create the web pages with a web publishing tool 2 Use the HelloDevice Utility Software to transform the created web pages into an uploadable form 3 Upload the transformed files to the HelloDevice 4 Use a web browser to connect to the uploaded web page In this example use the web files in the FirstDemo folder to construct a web server home page These examples are composed of an index html HelloDevice block diagram and cube animation demo with a Java applet 1 Select Web files tab to go to the window containing web file manager tools HelloDevice Utility Software for HD 1x00 ioj x IP Set Up Web Files Sys Set up Web Resource FileName TSize Index Find and Build Web File eral oe rar _Target Fi Select Build File History Delete History Monitoring Upload Built File Figure 5 2 Web File Tool screen of the HelloDevice Utility Software 2 Click Find button to find web files to build Go to the folder containing the example files select the top level FirstDemo folder and click OK button Starter Kit and User Manual for the HelloDevice 1200 Browse for Folder i CHAT DIRECTX Easy CD Creator FrontPage Express ii parva a lOdemo serialNemn F
23. er Kit and User Manual for the HelloDevice 1200 2 Overview The HelloDevice is a connectivity solution that allows any device in any industry to communicate over any network using any interface The HelloDevice 1x00 product family is a board level Ethernet controller that lets manufacturers and system integrators connect devices such as home appliances and industrial control systems directly to the Internet via Ethernet and remotely communicate with and control them with standard web browsers such as Microsoft Explore and Netscape Navigator The HelloDevice 1x00 product family is categorized into three types depending on how the HelloDevice connects to a user device Digital I O communication module HelloDevice 1100 Dual port RAM communication module HelloDevice 1200 Serial communication module HelloDevice 1300 Table 2 1 shows the basic specifications of the HelloDevice 1x00 Series Model HelloDevice 1100 HelloDevice 1200 HelloDevice 1300 Basic Spec 8 bits microprocessor 50 MIPS Memory Saves user Web files Connection 16 contact points digital See ogc input _ 2 KB dual port RAM RS 232 485 User device 16 contact points digital output Max 38 400 bps Internet Protocol Support HelloDevice utility software for Windows 95 98 NT 2000 platform IP addressing and Web i 1 channel Utility Software Table 2 1 Basic specifications of the HelloDevice 1x00 1 Currently HTTP 1 1 specificati
24. f A D converter and to write this numeric to specified location of Dual Port RAM Eventually you can test the change of the A D converter output if you poll the HelloDevice Dual Port RAM by using socket interface program 3 I O Control Test When you select the switch of Demo Board a signal of 5V TTL level falls from high to low on the input line Low Active Your device may read the status of input line and write the result to Dual Port RAM Also your device may read data from the specified location of Dual Port RAM and then turn on off the LED of Demo Board by setting output line as 5V HIGH level If the output is High LED turns on High Active 41 Starter Kit and User Manual for the HelloDevice 1200 6 4 Sample Programs 6 4 1 Using the Socket Program for Communication The following C program source code shows how to implement Internet socket interface program for the HelloDevice communication This sample code is implemented to read and to write Dual Port RAM data by using Berkeley socket C API functions This source is a part of the entire source code the HelloDevice installation folder Src C dprdemo c TestThroughput function is for testing the maximal speed of the communication in your network environment Process Test Throughput void TestThroughput unsigned char commandBuf 5 ResponseBuf int commandLen lenReceived int j total_length 0 int of
25. fset length tmp double bps 0 int err loop int clientLen clock_t start finish double duration Enter loop count for this test printf nEnter loop count of this demo n gt gt Read loop count scanf d amp loop Fix the size as 1450 which is max of Ethernet packet size This is max size of the DPRAM data that can be transferred in the HelloDevice offset 0 length 1450 Initialize TCP socket TCPSocketInit Make TCP command 6 byte coce 1 Command ID commandBuf 0 DPRGet 2 DPRAM address tmp offset gt gt 8 commandBuf 1 tmp tmp offset amp OxOOFF commandBuf 2 tmp 3 DPRAM length tmp length gt gt 8 commandBuf 3 tmp tmp length amp OxOOFF commandBuf 4 tmp 4 Interrupt flag commandBuf 5 0 0 Do not generate Interrupt to device AA Generate interrupt commandLen 6 42 1000 Starter Kit and User Manual for the HelloDevice 1200 Initialize length count total_length 0 Start time measurement start clock Loop of send receive for j 0 j lt loop j Send command to the HelloDevice err sendto sock amp commandBuf commandLen 0 struct sockaddr amp clientAddr sizeof clientAddr a if err 1 perror nsend error n exit 1 Response data 4 byte address length data ResponseBuf unsigned char calloc lengt
26. ges and inserting applets written with these source codes into html files The following example shows how to implement Internet socket interface for sending and receiving signals through TCP Port 6001 of the HelloDevice to control Dual Port RAM with Java applets public synchronized byte readValue int addr int length int inputData 0 int tmp 0 byte rxData new byte length 4 byte retData new byte length byte data new byte 5 if length gt Oxff length Oxff data 0 COMMAND_GET data l byte addr gt gt 8 amp 0x000000ff data 2 byte addr amp 0x000000ff data 3 byte length gt gt 8 amp 0x000000ff data 4 byte length amp 0x000000ff try socketTCP getOutputStream write data 0 data length tmp instream read rxData 0 rxData length if tmp 1 46 Starter Kit and User Manual for the HelloDevice 1200 for int i 0 i lt 256 i retData i rxData it 4 return retData catch Exception e System out printlin Err e return data public synchronized void writeValue int addr int length byte buffer byte txData new byte length 6 txData 0 COMMAND_SET txData 1 byte addr gt gt 8 amp 0x000000ff txData 2 byte addr amp 0x000000ff txData 3 byte length gt gt 8 amp 0x000000ff txData 4 byte length amp 0x000000ff txData 5 0 Set interr
27. gt gt Pinging 192 168 1 23 with 32 bytes of data Reply from 192 168 1 23 bytes 32 time 10ms TTL 251 Reply from 192 168 1 23 bytes 32 time lt 10ms TTL 251 Reply from 192 168 1 23 bytes 32 time 10ms TTL 251 5 Run the HelloDevice Utility program 6 Take steps described in chapter 4 3 2 Changing IP address 50
28. h 4 sizeof char Receive incomming packet lenReceived recvfrom sock ResponseBuf length 4 0 struct sockaddr amp clientAddr amp clientLen i if lenReceived lt 0 perror nError receiving n exit 0 Accumulate Total data length received so far total_length length 4 Clear receive length lenReceived 0 free ResponseBuf Print progress count printf Sdth loop r j Finish the time measurment finish clock Measure elapsed time in second duration double finish start CLOCKS_PER_SEC Print result printf n n n 2 3f seconds elapsed for d loops n duration loop total bytes 8 bit byte duration sec bps total_length 8 0 duration 1000 0 Kbps printf Total 1f Kbytes transferred n printf 3f Kbps throughput measured n Close TCP socket TCPSocketClose double total_length 1000 0 bps 43 Starter Kit and User Manual for the HelloDevice 1200 void DPR_Read unsigned char commandBuf 5 ResponseBuf int commandLen lenReceived int i count err int clientLen int offset length tmp printf n nEnter offset in hex MAX Ox7FF scanf x amp offset printf nEnter length in digit MAX 1450 scanf Sd amp length Initialize TCP socket TCPSocketInit Make TCP command 1 Command ID command
29. he BOOTP request of the HelloDevice Since the factory default setting of the HelloDevice IP address is 0 0 0 0 the HelloDevice sends BOOTP request Starter Kit and User Manual for the HelloDevice 1200 for IP assignment when it is powered up for the first time Thus users can see Tx LED keeps blinking periodically as a reminder Since IP address of the HelloDevice is managed by an IP address database a properly allocated MAC IP address record should be entered into the database See Figure 4 8 For a valid IP address users should ask their network administrator Hellotiavcce Uiliiy Sahane for HD 100 iaz P Set Up Web Files Sya Set up Font DE BOOTP database record BOOTP database list 4 management function STATUS Monihoring bg soe ana BOOTP server function IP address tracing modifying function Figure 4 8 IP address setting screen of the HelloDevice utility software Take the following steps to set up the IP address using the HelloDevice Utility Software Setting an IP address with the HelloDevice Utility Software 1 Run the HelloDevice Utility shortcut icon on the desktop of your PC and select IP Set up menu click on the IP Set up window This window provides the BOOTP server function for IP address setup BootP Start BootP Stop trace function IP Find and IP address initialize functions IP Clear 2 Press the Add button and enter the BOOTP database record as shown below
30. ice which does not exist in BOOTP DB List it will run DB Setting for BOOTP window automatically User should enter IP address and Gateway address of the HelloDevice and add them to BOOTP DB list 5 Check the status of Tx LED on HelloDevice The HelloDevice Utility Software will send a reply for IP assignment to the BOOTP request of the HelloDevice The Tx LED will be blinking periodically to indicate a BOOTP request At this point Status bar displays the BootP reply sent 192 168 1 15 message Wait until Tx LED does not blink any longer and then stop the functions of BOOTP server by clicking BOOTP Stop button Starter Kit and User Manual for the HelloDevice 1200 6 Use the ping command to check your IP address setting of HelloDevice Run the ping program at the command prompt If your IP address is correctly set the response to the ping will be as follows gt gt ping 192 168 1 15 gt gt Pinging 192 168 1 15 with 32 bytes of data Reply from 192 168 1 15 bytes 32 time 10ms TTL 251 Reply from 192 168 1 15 bytes 32 time lt 10ms TTL 251 Reply from 192 168 1 15 bytes 32 time 10ms TTL 251 If the response above is not displayed the IP address was not entered correctly so you should repeat steps 4 5 and 6 7 Use IP Find to identify IP address setting of HelloDevice Click IP Find button and the window in figure 4 10 will be shown Enter the MAC address of HelloDevice and click Find button The
31. igure 5 3 Finding Web server demo files 3 Select a file name to build Enter the file name of the built image and click Save button to save By default the HelloDevice web files built will have the extension hd The current window closes and Build complete dialog box appears Save As O O OO O ae HelloDevice My Pictures My Webs pe HelloDevice file hd Figure 5 4 Saving Web sample Build file 4 Enter an IP address of the HelloDevice to upload the built files 20 Starter Kit and User Manual for the HelloDevice 1200 It is assumed that the IP address of HelloDevice is 192 168 1 15 as is shown in chapter 4 HelloDevice Utility Software for HD 1x00 iles HelloDevice Utility D s HelloDevice Utility D felloDevice Utiity D HelloDevice Utility D C Program Files HelloDevice Utiity D C Program Files HelloDevice Utility D C Program Files HelloDevice Utility D CAF HelloDevice Utility D i ok Hallam auina Llib Monitoring Figure 5 5 Entering the IP address to upload the built files 5 Click the Target file button to select the built image files to upload f Open 2 x L HelloDevice My Pictures My Webs sample hd Files of type HelloDevice file hd Canc Figure 5 6 Screen of selecting the Build files to upload 6 Click Upload button to upload the built image files to
32. in C or Java applet working on the web The Internet socket interface should be implemented to allow the TCP IP protocol to communicate with the HelloDevice and it should send Read Write command to the TCP port 6001 and current IP address of the HelloDevice The HelloDevice will interpret this command to read and write Dual Port RAM of the HelloDevice The communication command and corresponding response between socket interface and the HelloDevice are summarized in Table 6 2 Command Packets Direction User PC the HelloDevice Dual Port RAM Read Get command Get response Dual Port RAM Write VIN Set command Table 6 2 the HelloDevice Dual Port RAM Read Write Command and Response 30 Starter Kit and User Manual for the HelloDevice 1200 The address of 2 Kbytes of Dual Port RAM is from 0x000 to Ox7EF So you should consider this scope in designing communication interface between your system and the HelloDevice 6 2 1 Reading a Dual Port RAM To read specified area of the HelloDevice Dual Port RAM from your PC you should send corresponding commands into the HelloDevice from socket interface program of PC the HelloDevice will reply to this command and returns corresponding response The Read command and corresponding response are summarized in table 6 3 As it is shown as the table 6 3 the maximum readable data length is limited to 1450 0x5AA byte This limitation is from the fact th
33. mwrite mov DPROffsetMSB InAddrLSB amp ff 00 gt gt 8 mov DPROffsetLSB InAddrLSB amp SOOff mov w AddressLSB call dpramwrite Write specified length into InLen registers mov DPROffsetMSB InLenMSB amp Sff 00 gt gt 8 mov DPROffsetLSB InLenMSB amp SOOff mov w LengthMSB call dpramwrite mov DPROffsetMSB InLenLSB amp Sff 00 gt gt 8 mov DPROffsetLSB InLenLSB amp SOOff mov w LengthLSB call dpramwrite Write data for the loop count of specified length mov DPROffsetMSB AddressMSB mov DPROffsetLSB AddressLSB call dpramwrite Generate interrupt by writing AA into INTR_L register mov DPROffsetMSB Intr_L amp Sff00 gt gt 8 39 mov mov call Starter Kit and User Manual for the HelloDevice 1200 DPROffSetLSB w SAA dpramwrite Intr_L amp soofft Interrupt service routine of user device If you receive interrupt from the HelloDevice you should read data from the specified location To read data at the location you should read address and length of data from OutBox register And then you will have to read data from the address After you finish reading the data you will need to do something with this data Read specified data address from OutAddr registers Mov Mov call DPROffsetMSB DPROffsetLSB dpramread Add
34. net packets transmitted from the Ethernet controller to the network may have collided with another packets In this case the Ethernet controller will automatically resend the packets 3 5 Dual Port RAM Dual Port RAM is a 2 Kbytes duplex communication memory chip which both a user device and the HelloDevice can read write This memory can be accessed through 8 data lines BDO BD7 and 11 address Starter Kit and User Manual for the HelloDevice 1200 lines BAO BA10 of JP1 and JP2 Cypress CY7C136 2 Kbytes Dual Port RAM See Appendix A 52 pin PQFP 3 6 Flash Memory Web page resources files that the user creates to control the user device are stored in the flash memory of HelloDevice Main Board 4 MBits 512 Kbytes Composed of 2 048 sectors of 256 Bytes 3 7 Firmware The HelloDevice Firmware resides in the program memory of microprocessor The firmware includes a TCP IP stack conforming to the Open System Interconnection OSI requirements for an Internet connection and the dual port RAM interface for connection to the user devices The HelloDevice Supports Dual Port RAM System Communication Configuration Application rm A A Table 3 2 OSI 7 Layers and the HelloDevice 1200 Firmware Starter Kit and User Manual for the HelloDevice 1200 4 Setting Up the Hardware The HelloDevice 1200 is as follows Install the HelloDevice Utility Software on user s PC Connect the HelloDevice to the
35. nicates with the HelloDevice Dual Port RAM and describes how to use Demo Board to test I O control and A D converter control 36 Starter Kit and User Manual for the HelloDevice 1200 u4 BAO 52 10 BDO BAI cy 1i BDI lt User Device BAR voa Le BAG Host 13 BDZ BAA Voal 14 BD4 BAS Host 5 BDS User Device gt BAG OBL 16 BD BAF 17 BD TA OFL BAG 20 D0 BAIDS0 VOOR 2101 lt HelloDevice WCC VEC VOIR 232 D VEC VO2R 0 233 D3 WO3R Al 24 D4 WO4R EA VIAR 25 D5 AS 26 D6 R10 R11 R12 A VOR F5 p7 HelloDewice gt Ea VOFR FE 4 nBuSsY 4 User Device AT BUSYL 42 DPRAMBUSYT Z HelloDevife 76 BUSYR p d0 niRQ lt User Device Alo INTL 41 DPINT lt HelloDevice INTR vec User Device gt NWR HelloDevice gt R W R13 User Device gt RO HelloDevice gt DPRAWCS nCE ey7c136 55ne Note Pull Up Resistor Rii R13 is Required Figure 6 8 HelloDevice amp User Device use ports of Dualport RAM 1 Dual Port RAM Communication To implement the hardware refer to the specifications of the HelloDevice external interface Dual Port RAM connector of Demo Board and attached data sheet of CY7C136 Dual Port RAM When you implement your hardware you can use Vcc GND lines of Dual Port RAM interface connector of Demo Board This way an additional 5V DC power supply is not required This section illustrates a subroutine of reading and writing each one byte in Dual Port RAM of the HelloDevice
36. o the HelloDevice from user device INLenMSB Ox7F6 MSB length of the data to be sent to host PC when interrupt is generated into the HelloDevice from user device INLenLSB Ox7F7 LSB length of the data to be sent to host PC when interrupt is generated into the HelloDevice from user device OUTAddrMSB 0x7F8 MSB Address of the data to be read by user device when interrupt is generated into user device OUTAddrLSB Ox7F9 LSB Address of the data to be read by user device when interrupt is generated into user device OUTLenMSB Ox7FA MSB length of the data to be read by user device when interrupt is generated into user device OUTLenLSB Ox7FB LSB length of the data to be read by user device when interrupt is generated into user device INTR_R Ox7FE Used that HelloDevice generates interrupt into user device If the HelloDevice sets this register value as OxAA interrupt will be generated into user device INTR_L Ox7FF Used that user device generates interrupt into the HelloDevice If user device sets this register value as OxAA interrupt will be generated into the HelloDevice Table 6 1 the HelloDevice Dual Port RAM interrupt control register 6 2 Communication Protocol To read and write the HelloDevice Dual Port RAM remotely on the Internet the Internet socket interface program should be implemented on the your PC to communicate with the HelloDevice This socket interface is usually implemented in the form of a socket program written
37. ons are supported Starter Kit and User Manual for the HelloDevice 1200 3 Hardware Specifications The hardware configuration and the system block diagram of the HelloDevice 1200 Main Board are shown below in Figure 3 1 and Figure 3 2 The board layout in Figure 3 1 may be slightly different from the layout of the HelloDevice main board in the Starter Kit for the performance improvement Rear side Figure 3 1 the HelloDevice 1200 Configuration and Components LED Interface RJ45 connector 10 Base T Ethernet controller interface filter 10 Base T 512 KB Sx52BD Flash Memory microprocessor Power supply interface 2 KB Dual Port RAM Dual Port RAM interface Figure 3 2 the HelloDevice 1200 System Block Diagram Starter Kit and User Manual for the HelloDevice 1200 3 1 External Interface The HelloDevice provides JP1 and JP2 connectors that has 38 signal pins for external interface which allows internal components of the main board such as microprocessor Ethernet controller and dual port RAM to be interfaced with the user device Figure 3 3 and Table 3 1 represent the pin assignment for the external interface of the HelloDevice 1200 BAO BAI BA2 BA3 BA4 BAS BAS BA7 BAS BA9 BAIO BDO BDI BD2 BD3 BD BDS BD6 BD7 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19720 JPA
38. or the HelloDevice 1200 RJ45 connector for Ethernet interface Figure 6 5 shows the components and pin assignment of the HelloDevice Dual Port RAM Demo Board Interface pin assignment is also summarized in Table 6 7 Connector Pin Symbol Description 1 Vcc Vcc DPRAM 2 12 BAO BA10 Dual Port RAM address line 13 20 BDO BD7 Dual Port RAM data line 21 nBusy Dual Port RAM control line Busy 22 NIRQ Dual Port RAM control line IRQ 23 nRead Dual Port RAM control line Read 24 NCE Dual Port RAM control line Chip Enable 25 nWrite Dual Port RAM control line Write 26 NGND GND 1 8 DBO DB7 AD converter 8 bit data line ADC amp 9 ADRD AD converter control line Read IO 10 ADCS AD converter control line Chip Select 11 ADINTR AD converter control line Interrupt 12 ADWR AD converter control line Write 13 16 IN0 IN3 4 point input line 17 20 OUTO OUT3 4 point output line Table 6 7 the HelloDevice demo board pin assignment 33 Starter Kit and User Manual for the HelloDevice 1200 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 JP2 20719 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 7 1 mP 4 point Input HelloDevice interface switch LED Dual Port RAM connector Reset switch A D converter Power connector VO Control connector g
39. rery asouppy OOM o S 2 2 z z x er eur ef HelloDevice Figure 4 5 Mounting the HelloDevice Main Board on Demo Board 2 Hook up Demo Board to the 5V power supply adapter HelloDevice 1200 110 220 V HelloDevice Demo board z 5Vpower supply Figure 4 6 Connecting the HelloDevice to 5V Power Supply 11 Starter Kit and User Manual for the HelloDevice 1200 3 Connect Ethernet cable between Ethernet Hub and RJ45 connector Refer to chapter 3 Hardware Specifications for the specifications of RJ45 connector HelloDevice Power Collision HelloDevice Demo Board Ethernet Cable Hub or Switch 5V Power Supply Ethernet backbone Figure 4 7 Connecting the HelloDevice to Ethernet 4 Check the status of the Tx LED on Demo Board Tx LED should be blinking every second If not there is a problem in the initial setting of the HelloDevice hardware 4 3 Configuring Network In order for a HelloDevice to function as a server on the network a static IP address must be set for the HelloDevice This section describes how to configure and change IP address for a HelloDevice 4 3 1 Setting IP Address The HelloDevice Utility Software is used to set up an IP address for a HelloDevice by utilizing BOOTP BOOTstrap Protocol which is defined in the Internet protocol standard RFC 951 and RFC 1542 The Utility Software provides BOOTP a server function and will respond to t
40. ressMSB w DPROffsetMSB DPROffsetLSB dpramread AddressLSB w OutAddrMSB OutAddrMSB OutAddrLSB OutAddrLSB Read specified data length from OutLen registers Mov DPROffsetMSB Mov DPROffset LSB call dpramread mov LengthMSB w Mov DPROffsetMSB Mov DPROffset LSB call dpramread mov LengthLSB w Read data mov mov call dpramread Out LenMSB Out LenMSB OutLenLSB OutLenLSB for the loop count of specified length DPROffsetMSB AddressMSB DPROffsetLSB AddressLSB amp amp amp Sf 00 gt gt 8 amp SOOff amp Sf 00 gt gt 8 amp SOOff S 00 gt gt 8 SOOff S 00 gt gt 8 SOOff 40 Starter Kit and User Manual for the HelloDevice 1200 Do something required to control user device by using the data read 2 A D Converter Test Refer to the included specifications of both the HelloDevice external interface and Demo Board ADC connector for hardware implementation Next refer to the A D converter Data Sheet attached to this manual for National Semiconductor s ADC0804 8 data lines and 4 control lines are required for an A D converter interface 5V DC signal is connected to input line of A D converter By changing the value of 10K variable resistor on Demo Board the input value of A D converter is changed You can implement a simple program to read output o
41. sing the HelloDevice 1200 One is the communication from your device to the HelloDevice and the other is the one from your PC to the HelloDevice In your PC side Dual Port RAM Read Write application should be implemented based on TCP IP protocol either by using Java applet or socket application In your device side hardware and firmware should be implemented to read and write Dual Port RAM of the HelloDevice 26 Starter Kit and User Manual for the HelloDevice 1200 6 1 Dual Port RAM Communications the HelloDevice has 2 Kbytes of Dual Port RAM the address of which is from 0x000 Ox7FF The first 2032 bytes of the memory area is for user s data whereas the last 16 bytes is the registers for interrupt based communication Your device may receive interrupt from the HelloDevice or can generate interrupt to the HelloDevice by using these registers Figure 6 2 shows the HelloDevice memory map of Dual Port RAM area Reserved Reserved Reserved Reseved IN IN IN IN Our Ou Our QUT Pesarved Pesaved INIRL AaB ASB Le LerLSB ActHVEB AASB Lev LB m OKT R XR OKA KOKO XR XP KM KB X XD E OOK Figure 6 2 the HelloDevice Dual Port RAM memory map As you can see 2032 bytes of user data area in the Figure 6 2 there s no specified memory area mapping scheme such as write area read area message box and so on Various memory map can be applied to this memory area based on your communication design scheme Thus you should
42. t RJ45 connector Status LED 4 point output LED Figure 6 5 the HelloDevice Demo Board Figure 6 6 shows a Schematic of the HelloDevice Demo Board You can refer to this to design your own hardware for the HelloDevice interface 34 Starter Kit and User Manual for the HelloDevice 1200 BERBERS out iea e poe a T a E E p zE nial Figure 6 6 the HelloDevice Demo Board Schematic Note JP3 Debug J1 J2 is connected with jumper when you make board 35 Starter Kit and User Manual for the HelloDevice 1200 6 3 2 Implementing hardware of user device You can perform data communication between your hardware and the HelloDevice through Dual Port RAM interface connector of Demo Board You can also hook up your hardware with the HelloDevice and test A D converter and I O control by using corresponding interface connector You may implement Dual Port RAM based device control monitor demo by using both interface Figure 6 7 shows the conceptual diagram of using Demo Board to implement the Dual Port RAM communication Dual Port RAM I Dual Port RAM Interface T O ADC Interface Dual Port RAM Interface Dual Port RAM T O ADC Interface HelloDevice demo board User board Figure 6 7 Concept diagram of the HelloDevice Dual Port RAM communication demo This section focuses on the way your hardware commu
43. to fail displaying the web page contact the Technical Support team at Sena Technologies E EEEE glele ale alelelelels E E BEJE ale gle ajajaja al2 a a see eees Jajajaja sia lalele aalala slalalale alala lalalalalala s s s s a a a z5 oo l w oo oo oo oo a l oO oo i ai 2 BIE alalslels ggg ala e a ala Ee sis glelelalelele 2 alalala lela eee 22 gi Figure 5 9 Web Page for Dual Port RAM Demonstration This demo screen shows how to read and write the 255 bytes area of the HelloDevice Dual Port RAM The java applet periodically reads and displays the Dual Port RAM the address of which is from 0x00 to OxFE You can also change the 1 byte value of each address Figure 5 10 shows the screen and the real mappings of Dual Port RAM The value in the grids shown in Figure 5 9 will represent the current value of memory 4 Check if Dual Port RAM has been written successfully Try changing the current value of Dual Port RAM address 0x010 to OxFF 24 Starter Kit and User Manual for the HelloDevice 1200 Move the cursor to the grid corresponding to the address 0x10 gt Double click the mouse gt Enter FF in the edit box labeled Hex which is located in the Address panel gt Press Enter HelloDevice 2Kbyte Dual Port RAM 0x000 DPRAM R W demo OxOFF rFErererererry cus Ee eee 0x800 Figure 5 10 Relationship between Dual Port RAM
44. to help you to implement firmware of your user defined device This example is written in Scenix Sx microprocessor assembly language Read memory To read Dual Port RAM specify the address for DPROffsetLSB and DPROffsetLSB and then call _dpramread subroutine To read multiple bytes call _dpramread several times _dpramread mov datalo SFF Set Data Read line as input refer to pin 19 26 mov addlo DPROffsetLSB Setmemory address Address 0 7 refer to 9 16 mov addhi DPROffsetMSB Setmemory address Address 8 10 refer to 17 18 33 37 Starter Kit and User Manual for the HelloDevice 1200 setb rw Ser as Read Active pin 30 nWR HIGH clrb dpramcs Chip Enable pin 31 nCE LOW mov Scratch0O datalo Read data from Data line and save it to Scratch0 variable refer to pin 19 26 seth dpramcs Chip Disable pin 31 nCE HIGH movw Scratch0 Save the value of Scratch0 into w register retp Write memory To write Dual Port RAM specify address for DPROffsetLSB and DPROffsetLSB save appropriate 1 byte value to w register and call _dpramwrite subroutine To save multiple byte values call __dpramwrite several times _dpramwrite mov Scratch0O w Save the data to be written to Scratch0 variable mov datalo 00 Set Data Read line as output refer to pin 19 26 mov addlo DPROffsetLSB Setmemory address Address 0 7 refer to pin 9 16 mov addhi DPROffsetMSB Setmemory address Address 8 10 refer to
45. upt flags as 0 System arraycopy buffer addr txData 6 length Initialize socket try socketTCP getOutputStream write txData 0 txData length catch Exception e System out printlin Err e Starter Kit and User Manual for the HelloDevice 1200 Appendix A Dual port RAM Data Sheet Provided in HelloDevice CD ROM as PDF file format or Can be downaloadable from Sena Technologies web site http www sena com Appendix B A D Converter Data Sheet Provided in HelloDevice CD ROM as PDF file format or Can be downaloadable from Sena Technologies web site http www sena com 48 Starter Kit and User Manual for the HelloDevice 1200 Appendix C IP address configuration by using cross over Ethernet cable You may configure the wrong IP address for the HelloDevice that cannot be run in your current network environment You might not initialize the IP address of the HelloDevice before you install it to different network environment In these cases you cannot access the HelloDevice via network since only network based IP configuration function is provided in the HelloDevice In these cases you will have to use cross over Ethernet cable for communication with the HelloDevice The ordinary Ethernet cable is straight type in which Rx line is connected into Rx line of other side and Tx line with Tx line of other side Meanwhile crossover Ethernet cable is a cable with Rx connected to Tx of the other side and
46. vice web server and demonstrates the Dual Port RAM communication between the HelloDevice Main Board and Demo Board The following sample program files are included in the Starter Kit 1 First web server demo sample 2 Sample for web based Dual Port RAM communication 3 Java applet source code for Dual Port RAM demo 4 C program source for Dual Port RAM demo Section 5 1 describes how to use the sample 1 to start a web server for the first time while section 5 2 provides an exercise to communicate with the HelloDevice Dual Port RAM over the web using the sample 2 Samples of 3 and 4 are described in chapter 6 Connecting User Devices Sample 1 Sample 2 Sample 4 iHi Sample 3 Figure 5 1 Location of the HelloDevice Sample Files 5 1 Building a Homepage For the HelloDevice to function as a web server web resources like HTML files image files and Java class files should be stored on the flash memory of the HelloDevice up to 256 files or a total data size of 500 Kbytes can be stored on the flash memory Since the HelloDevice does not use a general operating ststems web files are managed in the form of file index Starter Kit and User Manual for the HelloDevice 1200 table Web files are stored in the flash memory of the HelloDevice by building an integrated image file and then uploading it onto the HelloDevice This image file contains a file index table that is recognized only by H
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