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ST AN3972 Application note handbook

1. emberSerialPrintf APP_SERIAL EVENT too long since last heard emberSerialPrintf APP_SERIAL deleting address table index x status x r n i status ticksSinceLastHeard i OxFFFF Network maintenance if timeBeforeSinkAdvertise 2 status emberSendManyToOneRouteRequest concentratorType 10 radius emberSerialPrintf APP_SERIAL EVENT sink send many to one route request status 0x x r n status d 10 21 Doc ID 022161 Rev 1 AN3972 Application firmware description 3 2 3 2 1 3 2 2 do the sink advertise multicast if timeBeforeSinkAdvertise 0 emberSerialPrintf APP_SERIAL EVENT sink automatically advertising to find sensors r n sinkAdvertise timeBeforeSinkAdvertise TIME_BEFORE_SINK_ADVERTISE Each smartplug object of the list includes all the information related to the power consumption measurement of each smartplug device installed in the building These data are sent using a private ZigBee profile with a specific cluster ID CLUST_GET_PLUG_DATA_ID 0x1010 which is initialized into the function ZB_Clusterslnitialization the message related to this cluster is managed by the function OnGetPlugDataMsg that updates the data of the smartplug object included in the smartplug objects list The smartplug devices are compliant with both the Home Automation profile and the private profile implemented in the Home
2. way AN3972 Sf Application note Home web console for ZigBee smartplugs Introduction This document describes how to use the STM3210C EVAL based on the STM32F107VC microcontroller as a web console to monitor and control a ZigBee network of smartplugs The application can be used as a reference for the development of a ZigBee TCP IP Networks Bridge and is an example on how in a smartgrid scenario the services offered by a ZigBee HAN can be exported to the Internet by an Ethernet Internet gateway The STM32F107VC coordinates the ZigBee network through an SPZB260 PRO module included in an adapter connected by the expansion connectors of the STM3210C EVAL the ZigBee network is built using several STEVAL IHP001V3s used to monitor and control several AC loads lights appliances etc inside the HAN The adapter also includes an M24LR64 R dual interface EEPROM to store the TCP IP network configuration In fact in the microcontroller firmware a web server is also implemented which allows to monitor the AC load power consumption measured by each smartplug and to control its status ON OFF November 2011 Doc ID 022161 Rev 1 1 21 www st com Contents AN3972 Contents 1 Document and library rules 0 cee eee 4 1 1 e EE EE A 2 Hardware EG store eke eee ee eee Oe eee e 5 2 1 STM3210C EVAL demonstration board 5 2 2 SPZB260 PRO adapter EEN 6 e SE ET en e MEET 8 3 Application firmware description
3. 000 c cece eee 9 3 1 ZigBee se tion 643 06 E eee eee A ER AEN BEER Deva ee REEE 9 3 1 1 ZIGBOG IIDIANGS e EEN EE NNN we eos NEE wee ee 9 3 1 2 ZigBee application loyer 9 3 2 TCP IP Section 2 ee eee eee eens 11 3 2 1 TCP IP stack 2 0 0 ee eee ne eee eee 11 3 2 2 TCP IP application layer 20 00 cee 11 3 3 Source code organization 0 es 15 4 DEMO S tUP eg EE EE bes EE EEN 16 4 1 HTTP server limitations 18 4 2 Demo limitations naana ccc eee ees 18 5 R f reNc STE EEN ENNEN EE SEN ees Gee ES 19 6 Revision history ite e deat RECETTE EN Ae dee ENN 20 2 21 Doc ID 022161 Rev 1 DI AN3972 List of figures List of figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 STM3210C EVAL demonstration board 1 2 0 0 000 c eet 5 SPZB260 PRO adapter layout 0 0 cette ee 6 How to connect SPZB260 PRO adapter to the STM3210C EVAL 7 Firmware architecture 2 0 eee eee 9 Source code folder tree 15 PC TCP IP properties configuration 00 0 eee 16 Smart Home Information web page 16 Smartplug list detail of Smart Home Information web page 17 RFID PC user Interface 17 Writing details of RFID PC user Interface 17 Demo SOUP esiaren te tet d bee ee nadine peer ea ie eae orate ore 18 Doc ID 022161 Rev 1 3 21 Document and library rules AN3972
4. 1 Document and library rules This document uses the conventions described in the sections below 1 1 Acronyms Table 1 describes the acronyms used in this document Table 1 List of acronyms Acronym Meaning APP Application API Application programming interface HAL Hardware abstraction layer RTOS Real time operating system HAN Home area network MCU Microcontroller unit SPI Serial peripheral interface OOP Object oriented programming EEPROM Electrically erasable programmable read only memory OS Operating system RTOS Real time operating system HA Home automation ZCL ZigBee clusters library SICS Swedish institute of computer science TCP Transport communication protocol IP Internet protocol HTTP Hypertext transfer protocol HTML Hypertext markup language 4 21 Doc ID 022161 Rev 1 ky AN3972 Hardware kit 2 2 1 Hardware kit This section describes the hardware components necessary to set up the home web console demo kit One STM3210C EVAL board One SPZB260 PRO module adapter board for the STM3210C EVAL e Several ZigBee smartplug boards STEVAL IHP001V3 STM3210C EVAL demonstration board The STM3210C EVAL is a standard evaluation tool for the STM32F107xx microcontroller which includes an embedded Ethernet controller this is the main feature necessary for the home web console For further details about this board please refer to the UMO600 user manual
5. Figure 1 STM3210C EVAL demonstration board AM10572v1 The connectors CNS and CN9 which include all the MCU pinouts are used to connect the SPZB260 PRO adapter so a specific configuration of the board is necessary to free some MCU I O resources The following is the board setup e To close jumper JP19 To open jumper JP15 e Toremove R79 R84 and R169 Table 2 shows the pinout mapping of the connectors over the adapter Doc ID 022161 Rev 1 5 21 Hardware kit AN3972 Table 2 SPZB260 PRO adapter pin description STM32 pin no Pinname STM3210C EVAL Extension ZigBee adapter UO UO assignment connector pin no assignment VDD 3 3 V CN8 Pin 48 VCC_3V3 VSS GND CN9 Pin 50 GND 29 PA4 SPI1_NSS CN9 Pin 41 ZIG_SS 30 DAG SPI1_CLK CN9 Pin 40 ZIG_SCLK 31 PA6 SPI1_MISO CN9 Pin 38 ZIG_MISO 32 PA7 SPI1_MOSI CN9Q Pin 37 ZIG_MOSI 92 PB6 CAN2_TX I2C1_SCK CN8 Pin 36 12C1_SCK 93 PB7 12C1_SDA CN8 Pin 37 12C1_SDA 2 PE3 Trace_DO CN8 Pin 42 ZIG_HOST_INT 3 PE4 Trace_D1 CN8 Pin 43 VCC GPIO for M24LR64 r 4 PE5 Trace_D2 CN8 Pin 44 ZIG_WAKE 5 PE6 Trace_D3 CN8 Pin 47 ZIG_RSTB 2 2 SPZB260 PRO adapter This board allows to add the ZigBee connectivity to the STM3210C EVAL board it includes the connectors for the SPZB260 PRO module and the M24LR64 R dual interface EEPROM Figure 2 shows the adapter layout Figure 2 SPZB260 PRO adapter layout on oo ee ee o
6. SAVING OR LIFE SUSTAINING APPLICATIONS NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY DEATH OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ST PRODUCTS WHICH ARE NOT SPECIFIED AS AUTOMOTIVE GRADE MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER S OWN RISK Resale of ST products with provisions different from the statements and or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever any liability of ST ST and the ST logo are trademarks or registered trademarks of ST in various countries Information in this document supersedes and replaces all information previously supplied The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2011 STMicroelectronics All rights reserved STMicroelectronics group of companies Australia Belgium Brazil Canada China Czech Republic Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Philippines Singapore Spain Sweden Switzerland United Kingdom United States of America www st com ky Doc ID 022161 Rev 1 21 21
7. Web Console application running on the STM3210C EVAL On the smartplug the ON OFF command is implemented by the HA standard profile so the home web console uses a standard ZCL command for this command implemented by the function SendZclOnOffCmd TCP IP section TCP IP stack The web section of the application is based on the IwIP stack implemented by SICS It is designed to reduce memory usage and code size in order to be used in embedded systems For details related to this TCP IP stack refer to the lwIP manual available at www sics se The TCP IP task which is implemented by the tcpip_thread function is created by the function vStartEthernetTasks The tcpip_thread task creates the task ethernetif_input that manages the messaging process with the Ethernet controller which is embedded in STM32 TCP IP application layer The HTTP server services run on the task httpd it mainly creates a TCP listener on port 80 and as soon as an incoming connection is received the server accepts it and parses the HTML request by the function ParseHTMLRequest after the parsing procedure the connection is closed The task is normally in sleep state and it is woken up by the incoming connection request from the client The HTML parser processes both GET and POST requests and expects to immediately get the data The web page is made up of two static parts and two dynamic parts so it is organized into four frames The static parts and the index pages
8. a smartplug is removed from this list when it isn t heard from for a specified time and it is added when the concentrator receive a select sink message from it this message is managed in handleSensorSelectSink called by the callback function ezspIncomingMessageHandler At Doc ID 022161 Rev 1 9 21 Application firmware description AN3972 the same time the application periodically sends in broadcast the Sink Advertise message to keep the network alive and a many to one route request to update the routing tables of all smartplugs in the network The code sections that implement these functions are the following Joined smartplugs list maintenance for i 0 i lt APPLICATION_ADDRESS_TABLE_SIZE i if ticksSinceLastHeard i OxFFFF if ticksSinceLastHeard i gt MISS_PACKET_TOLERANCE SEND_DATA_RATE Remove the lost SmartPlug from the Plugs collection MP CoordinatorType pObjCoordinator GetCoordinatorObj if pObjCoordinator pObjSmartPlug pObjCoordinator gt GetSmartPlug pObjCoordinator emberGetAddressTableRemoteNodelId i if pObjSmartPlug id pObjSmartPlug gt ID pObjCoordinator gt DelSmartPlug pObjCoordinator emberGetAddressTableRemoteNodeId i sprintf msg Node d Deleted id LCD_DisplayStringLineCol Line8 300 unsigned char msg emberSetAddressTableRemoteNodeId i EMBER_TABLE_ENTRY_UNUSED_NODE_ID
9. AN3972 4 16 21 Demo setup To set up the demo one STM3210C EVAL board modified as described in Section 2 1 with a ZigBee adapter is necessary a set of STEVAL IHP001V3s a PC with Ethernet connectivity and an Ethernet switch or hub with standard Ethernet cable if an Ethernet switch or hub is not available it is possible to use a crossed Ethernet cable The adapter is not provided in the package but the Gerber files are available for downloading together with the firmware package By using the browser of the PC it is possible to monitor and control each smartplug of the HAN simply writing the IP address of the board shown in the board display in the address bar It is possible to do the same from any computer connected to the Internet configuring the PC as the Internet gateway providing it has an Internet connection of course with a public IP address unfortunately not all Internet providers assign public IP by default Go step by step 1 Turn on the STM3210C EVAL board with daughterboard 2 Set the PC network with static IP address Figure 6 PC TCP IP properties configuration Internet Protocol TCP IP Properties General You can get IP settings assigned automatically if your network supports this capability Otherwise you need to ask your network administrator for the appropriate IP settings Obtain an IP address automatically Use the following IP address IP address 192 168 0 1 Subnet m
10. Page PrepareFrame2 s_cDynamicPage pxNetCon file len strlen s_cDynamicPage sReqCount else if strncmp char pcRxString 4 top2 htm 9 Build the dynamic page file data s_cDynamicPage PrepareFramel s_cDynamicPage pxNetCon file len strlen s_cDynamicPage Doc ID 022161 Rev 1 strncemp pcRxString GET 4 for int i 4 i lt usLength i if pcRxString i pcRxString i r pcRxString i pcRxString i 0 d AN3972 Application firmware description else if strncemp char pcRxString 4 conf htm 9 Build the dynamic page file data s_cDynamicPage PrepareFrameConf s_cDynamicPage pxNetCon file len strlen s_cDynamicPage else int nFileFound 0 if char zl pcRxString 4 amp amp char pcRxString 5 0 if sReqCount lt 1 nFileFound fs_open index html amp file else nFileFound 0 else nFileFound fs_open char pcRxString 4 amp file if nFileFound fs_open 404 html amp file Write out the HTTP OK header strcpy txt webHTTP_OK sprintf txt strlen webHTTP_OK webHTTP_Info file len Write out the HTTP Info header netconn_write pxNetCon txt ul6_t strlen txt NETCONN_COPY Write out the dynamically generated page writeGeneratedPages file pxNetCon Post Command Handler if strnemp pcRxStr
11. S Ha Giwip Ha Network Tasks HOST Library Ha Oo sTzsP_us o ZIGBEE_LIB Ha D main c Ho amp startup_stm32f10x_cl s Ha D stm32d eval_io_expander c O stm32f10x_it_iar c Le Gj Output D codeBase map Lef codeBase out AM10576v1 The STZSP_LIB folder files include all the low level functions for interfacing the SPZB260 PRO module the ZIGBEE_LIB and COORDINATOR_OBJ folders include the basic ZigBee libraries which implement the ZigBee data the smartplug data and Coordinator data objects The APPLICATION folder files include the interface to the ZigBee basic libraries and also the application layer source files The DUAL_EEPROM_LIB folder includes the library for the I C access of the M24LR64 R The FreeRTOS includes all source file of the OS from www freertos org The source code reports the license agreement to use it The IwIP folder includes the source file of the TCP IP stack from SICS The source code reports the license agreement to use it The Network Tasks folder includes the source code of the tasks related to the TCP IP stack execution and the HTTP web server task with the file system implementation as well The ST Library folder includes the STM32 MCU standard library source files The main c files include the configuration functions the OS startup function and the ZigBee Section task prvApplicationTask Doc ID 022161 Rev 1 15 21 Demo setup
12. are stored in the embedded flash of the STM32 the dynamic parts are built at runtime on the basis of the smartplug data objects list maintained by the ZigBee application layer described in Section 3 1 2 The first dynamic part shows a table reporting the label the measured voltage current and power consumption for each smartplug in the HAN the table is refreshed every 30 seconds The second dynamic part shows a list of smartplugs using the Doc ID 022161 Rev 1 11 21 Application firmware description AN3972 12 21 labels according to the table allowing the selection of each smartplug and sends an ON or OFF command to it The command is sent as a POST request to the web server The page is formatted according to a styles file css which is also stored in the embedded flash The network parameters IP address IP Gateway address and IP address subnet mask are stored in the DUAL EEPROM included in the ZigBee module adapter and read at the startup by the MCU if an EEPROM isn t recognized the default values are used The parsing procedure is as follows HTML parsing procedure if pxRxBuffer NULL Where is the data netbuf_data pxRxBuffer void amp pcRxString amp usLength Is this a GET We don t handle anything else if Is the page requested debug html if strncemp char pcRxString 4 top3 htm 9 sReqCount Build the dynamic page file data s_cDynamic
13. ask 255 255 255 0 Detault gateway 192 168 0 1 Use the following DNS server addresses Preferred DNS server Altemate DNS server Advanced 3 Connect the Ethernet cross cable from STM3210C EVAL to PC 4 Open Internet Explorer on 192 168 0 100 as shown in the LCD display Figure 7 Smart Home Information web page HAO Pow frome O AS o URE Address httn 192 168 0 103 Le Go Smart Home Information Data are collected in real time through ZigBee network and displayed accordingly in this web page EZA Power Consumption Monitoring EN z A n A9 Ey ISS ID LABEL VOLTAGE V CURRENT A POWER W d Ly Smart Plug Control Plug Action E Eea done D internet Doc ID 022161 Rev 1 ky AN3972 Demo setup 5 Turn on one or more ZigBee smartplugs make sure that the smartplug is linked to the coordinator STM3210C EVAL board with daughterboard in this case the connection icon on the smartplug LCD should show the red light blinking push the button on the upper right on the smartplug to link unlink to the coordinator 6 Refresh Internet Explorer Figure 8 Smartplug list detail of Smart Home Information web page Power Consumption Monitoring ID LABEL VOLTAGE V CURRENT A POWER W Smart Plug Control ON OFF 7 Nowitis possible to control the remote ZigBee smar
14. ddress bar to reach the web server running on the STM3210C EVAL board Figure 11 shows a typical demo setup Figure 11 Demo setup AM10583v1 HTTP server limitations The system has been tested with several Internet browsers and some limitation has been found with the following browsers Opera e Mozilla e Safari The limitations are related mainly to the page formatting and in the case of Safari to the POST management as well Full compatibility is only achieved with Internet Explorer and Google Chrome Demo limitations Only for demonstration purposes the number of smartplugs that the STM3210C EVAL can manage is limited to 5 Doc ID 022161 Rev 1 ky AN3972 References 5 References STM32F107VC datasheet RM0008 reference manual STM32F10xFWLib 3 1 2 FreeRTOS official website www freertos org IwIP user manual SICS website www sics se UMO600 user manual AN2993 application note Oo Noah wn ki Doc ID 022161 Rev 1 19 21 Revision history AN3972 6 20 21 Revision history Table 3 Document revision history Date Revision Changes 11 Nov 2011 1 Initial release Doc ID 022161 Rev 1 AN3972 Please Read Carefully Information in this document is provided solely in connection with ST products STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections modifications or improvements to this document and th
15. e products and services described herein at any time without notice All ST products are sold pursuant to ST s terms and conditions of sale Purchasers are solely responsible for the choice selection and use of the ST products and services described herein and ST assumes no liability whatsoever relating to the choice selection or use of the ST products and services described herein No license express or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT UNLESS EXPRESSLY APPROVED IN WRITING BY TWO AUTHORIZED ST REPRESENTATIVES ST PRODUCTS ARE NOT RECOMMENDED AUTHORIZED OR WARRANTED FOR USE IN MILITARY AIR CRAFT SPACE LIFE
16. ing POST 5 if strnemp char pcRxString 5 top2 htm 9 ky Doc ID 022161 Rev 1 13 21 Application firmware description AN3972 14 21 Detect Smart Plug Action ActionDetect pcRxString usLength SB PrepareFramel s_cDynamicPage pxNetCon file data s_cDynamicPage file len strlen s_cDynamicPage else if strncmp char pcRxString 5 conf htm 9 Detect Smart Plug Action ActionDetectConf pcRxString usLength SB PrepareFrameConf s_cDynamicPage pxNetCon file data s_cDynamicPage file len strlen s_cDynamicPage strcpy txt webHTTP_OK sprintf txt strlen webHTTP_OK webHTTP_Info file len Write out the HTTP Info header netconn_write pxNetCon txt ul6_t strlen txt NETCONN_COPY WriteGeneratedPages file pxNetCon netbuf_delete pxRxBuffer Doc ID 022161 Rev 1 d AN3972 Application firmware description 3 3 Source code organization The firmware has been developed using IAR v5 50 1 but it is portable with minimum effort to other development tools The source code is organized following the folder tree shown in Figure 5 Figure 5 Source code folder tree B Files 4 5 codeBase Debug Server v HACI APPLICATION Ham aPP_Layer Ha COORDINATOR Layer Ha a HAL_Layer Ha mcu Layer Ham ZIGBEE_Layer Le ZSP_Layer Common demo files a oca G3 DUAL_EEPROM_LIB 4 Gi FreeRTO
17. itecture Figure 4 Firmware architecture Layer RTOS Application RTOS indepen RTOS independent Hardware dependent AM10575v1 The firmware includes a common hardware dependent layer which mainly includes the STM32 standard library over this layer the libraries and the application tasks are grouped in two sections one for the ZigBee part and the other for the TCP IP part The FreeRTOS allows the correct execution of these tasks and their interaction ZigBee section ZigBee libraries The ZigBee libraries which are independent from the OS are part of the firmware package of the STEVAL IHP001V3 board and are fully documented please refer to www st com ZigBee application layer The application is based on the same principle as the typical sink sensors scenario supporting a many to one protocol where there are several sensors which in this case are the smartplugs that periodically send data to a concentrator which in this case is also the network coordinator and is implemented by the STM3210C EVAL The application layer is implemented by the task prvApplicationTask which is implemented inside the main c file It calls the function emberTick which includes the functions for the ZigBee stack finite state machine evolution and the function applicationTick which implements the ZigBee section of the application layer The application maintains a list of the smartplugs joined to the HAN
18. o on KE se se ae oe ALLIGI wh AA E IUII AM10573v1 Figure 3 shows how to connect to the STM3210C EVAL board 6 21 Doc ID 022161 Rev 1 AN3972 Hardware kit Figure 3 How to connect SPZB260 PRO adapter to the STM3210C EVAL AM10574v1 The SPZB260 PRO is a 2 4 GHz ZigBee module compliant with FCC regulations FCC ID S9NZB260A for further information refer to the SPZB260 PRO datasheet The M24LR64 R is an EEPROM with both 1 C interface and RF interface this allows a standard memory access for an MCU using the DC and an access for a standard long range ISO 15693 ISO 18000 3 mode 1 RFID reader Using the RF interface the memory can read write even when it is not powered In this application the EEPROM stores in the first three 32 bit memory locations the TCP IP network parameters e P address e Gateway IP address e P address mask The parameters are programmed by the RFID reader with the board switched off and at the power on during boot the MCU reads the network parameters to configure the TCP IP stack The 64 Kbit memory is organized into 8192 x 8 bits accessing from the CC bus and into 2048 x 32 bits accessing from the RF interface M24LR64 R is the slave of the ke communication with STM32 the two jumpers included on the board are used to set the slave address of the memory For further information about M24LR64 R functionalities refer to the M24LR64 R datasheet for info
19. rmation related to application development several application notes are available for downloading at www st com Doc ID 022161 Rev 1 7 21 Hardware kit AN3972 2 3 8 21 STEVAL IHP001V3 The STEVAL IHP001V3 ZigBee smartplug demonstration board employs the STM32F 10x microcontroller ZigBee SPZB260 PRO module and STPM01 energy metering IC to implement a ZigBee meter node which allows the user to monitor and manage the energy consumption of a connected load In a typical home system implementation the board is plugged into an electrical wall socket and supplies a home appliance or other generic electrical load Current power energy and other information related to the electrical load connected to the smartplug board can be shown on an LCD displayed locally or sent to a ZigBee data concentrator through a home building ZigBee network While the STEVAL IHP001V3 replaces the STEVAL IHP001V2 the hardware for both the V2 and V3 versions of the smartplug demonstration boards are identical The STEVAL IHP001V3 differs from the V2 version only in terms of the ZigBee PRO stack update More information is available for downloading at www st com Doc ID 022161 Rev 1 ky AN3972 Application firmware description 3 3 1 Application firmware description The firmware has been developed over the FreeRTOS operating system in order to simplify the integration of the different application parts Figure 4 shows the firmware arch
20. tplug 8 To change the IP address the user must power off the board and connect to it using the RF interface For example using STARTKIT M24LR64 In this case the user should read the block 0 of the EEPROM DUAL IFs 4 bytes reading the actual IP address Figure 9 RFID PC user interface TEE Bag Write AFI TATRA 9 The user can easily change this value putting the new IP address in HEX for example writing 192 168 0 3 gt COh A8 h OOh O3h Figure 10 Writing details of RFID PC user interface RF User Interface MEMORY seen by RF sector block data sss Joooo co as oo 03 M multiple read Read with block Security Status Read block block from 0000 to 0000 co as 00 03 Fill with Get Multiple Block Security Status 4 Doc ID 022161 Rev 1 17 21 Demo setup AN3972 4 1 4 2 18 21 If it is available the simplest method to use the PC as gateway is to share the Internet connection and enable the web server service from the settings specifying the board IP address If the PC is configured correctly it works as a gateway with IP address 192 168 0 1 the subnet mask of the LAN is set accordingly and if the board has for example an IP address like 192 168 0 xxx the subnet mask is set to 255 255 255 0 so it is enough to configure the IP addresses set of the board accordingly from a PC connected to the Internet write the public IP address of the PC in the a

ST AN3972 Application note handbook

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