RAK811 Tracker - HowTo

  • Hi,
    now I have a J-Link Interface (Segger) but how to connect to RAK811 Trackerboard?
    Is there a schematic/pin-diagram how to connect?

  • administrators


  • @frml55 you should also check the JLink user guide for the pinouts of your debugger http://www.farnell.com/datasheets/1562851.pdf

  • @rakadmin Does it mean that I must have J-link even to put the Devices EUI, App EUI and App key into the RAK811 Trackerboard?

    I purchased the J-Link through your taobao store but I am not sure if I can use it on my Virtualbox with Windows 7.

    Can I have the environment set up in Ubuntu Linux?

    I just want to setup the Lora Tracker to test in Cayenne MyDevice for now.

  • administrators

    Hello, we currently only provide the Windows environment, if you want to download the program in the Liunx environment, you need to modify the procedures for the gcc compiler environment.

  • @olunia

    Try this, it's work on debian and ubuntu


  • Hi,
    FYI, i just update the Makefile (some settings were "conflicting")...

  • Hi,
    now I have connected the Segger J-Link adapter like this:

    I've installed CoIDE on my Windows10 PC and "GNU Tools ARM Embedded - 6 2017-q2-update"

    When I try to build I get compiled 56 files without a failure, but when start linking
    the following failure appears:

       [cc] Starting link
       [cc] arm-none-eabi-gcc -mcpu=cortex-m3 -mthumb -g2 -nostartfiles -Wl,-Map=RAK811Breakboard_classA.map -Os "-LC:/Eigene Dateien/0_Familienmitglieder/Maze/IOT Allgemein/RAK811 Tracker/coIDE/classA" "-Wl,-TC:/Eigene Dateien/0_Familienmitglieder/Maze/IOT Allgemein/RAK811 Tracker/coIDE/classA/link.ld" -g -o RAK811Breakboard_classA.elf ..\obj\sx1276.o ..\obj\printf.o ..\obj\stm32l1xx_hal_rcc.o ..\obj\stm32l1xx_hal_adc.o ..\obj\lis3dh.o ..\obj\gps-board.o ..\obj\startup_stm32l151xb.o ..\obj\sysIrqHandlers.o ..\obj\gpio-board.o ..\obj\stm32l1xx_hal_uart.o ..\obj\uart-board.o ..\obj\gps.o ..\obj\stm32l1xx_hal_pwr.o ..\obj\Region.o ..\obj\stm32l1xx_hal_spi.o ..\obj\LoRaMac.o ..\obj\fifo.o ..\obj\RegionKR920.o ..\obj\timer.o ..\obj\stm32l1xx_hal_gpio.o ..\obj\uart.o ..\obj\rtc-board.o ..\obj\stm32l1xx_hal_cortex.o ..\obj\utilities.o ..\obj\main.o ..\obj\stm32l1xx_hal_rtc.o ..\obj\cmac.o ..\obj\adc-board.o ..\obj\aes.o ..\obj\system_stm32l1xx.o ..\obj\sx1276-board.o ..\obj\RegionEU868.o ..\obj\RegionUS915-Hybrid.o ..\obj\RegionAS923.o ..\obj\RegionCommon.o ..\obj\LoRaMacCrypto.o ..\obj\stm32l1xx_hal_i2c.o ..\obj\RegionIN865.o ..\obj\stm32l1xx_hal.o ..\obj\delay.o ..\obj\RegionAU915.o ..\obj\spi-board.o ..\obj\stm32l1xx_hal_rcc_ex.o ..\obj\stm32l1xx_hal_adc_ex.o ..\obj\eeprom-board.o ..\obj\stm32l1xx_hal_dma.o ..\obj\board.o ..\obj\i2c-board.o ..\obj\stm32l1xx_hal_spi_ex.o ..\obj\stm32l1xx_hal_pwr_ex.o ..\obj\gpio.o ..\obj\adc.o ..\obj\RegionUS915.o ..\obj\i2c.o ..\obj\stm32l1xx_hal_rtc_ex.o ..\obj\stm32l1xx_hal_usart.o -lm -lgcc -lc -lrdimon
       [cc] ..\obj\startup_stm32l151xb.o:(.isr_vector+0x0): undefined reference to `_estack'
       [cc] c:/program files (x86)/gnu tools arm embedded/6 2017-q2-update/bin/../lib/gcc/arm-none-eabi/6.3.1/../../../../arm-none-eabi/lib/thumb/v7-m\libc.a(lib_a-init.o): In function `__libc_init_array':
       [cc] collect2.exe: error: ld returned 1 exit status
       [cc] init.c:(.text.__libc_init_array+0x20): undefined reference to `_init'

    Can anyone help me to build my .bin file?

  • The problem with failed linking is solved.
    CoIDE's configurtion of link file was wrong.
    After I corrected this I've got my bin file, but ...

    • How to get the code in the RAK811 tracker flash?
    • How to connect to TTN?
    • How to connect to Cayenne to test the tracker?

  • Hi,
    in commissioning.h the EUI Values are in "big endian".
    If I build the project with big endian byte format, it doesent works.
    If I build it in little endian it works but activation in TTN doesn't work?!

    What to do?

    Options for code generation (crossStudio) are:

    • Little little endian code and data.
    • Big big endian code and data.
    • BE-8 little endian code and big endian data.

  • It's Chinese New Year so we may have to wait for some answers. I'm facing similar problems.
    When RAK say on there Boxes IoT made easy, what do they mean? it dose not looks that easy to me. Than again I'm not a developer dealing with embedded code. I hoped it would have been a config file you edit and that's it. Can you please continue to share your progress as this would greatly help me and I'm sure many other frustrated owners of the RAK 811 tracker. Thank you

  • administrators

    @frml55 said in RAK811 Tracker - HowTo:

    How to connect to TTN?
    How to connect to Cayenne to test the tracker?

    About this problem ,please see the document:http://docs.rakwireless.com/en/RAK811 TrackerBoard/Software Development/Node Location Solution Kit With TTN V1.0.pdf

  • Can replace RAK811 by RN2903 of (microchip) ????????

  • May be can not, we do not know much about RN2903.

  • Has anyone had any success reading and writing to the eeprom on these boards?

  • This is the Code I have been trying to get going

    void TestEeprom() {
            printf("Eeprom test begin");
            char buffer[] = "hello out there";
            char buffer2[64];
            memset(buffer2, 0, sizeof(buffer2));
            memcpy(buffer2, "placeholder", sizeof("placeholder"));
            uint8_t result = EepromWriteBuffer(0, (uint8_t*)buffer, sizeof(buffer));
            printf("Write result: %d\n", result);
            printf(result == SUCCESS ? "success\n" : "fail\n");
            result = EepromReadBuffer(0, (uint8_t*)buffer2, sizeof(buffer2));
            printf("Read result: %d\n", result);
            printf(result == SUCCESS ? "success\n" : "fail\n");
            printf("Read: %s\n", buffer2);

    This code is resulting in both the read and write code reporting as a fail.

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