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nrf51822 uart example doesn´t work

tobias.poppe

Hey pro´s, first thanks for this great community! I´ve read a lot of conntents here, and there is a huge amount of knowledge in this forum! But since 2 weeks i´ve got a problem i can´t solve...

I use a small board with a 51822 on it, programmed by a st-link via open-ocd. I work on a mac, so i use gcc. Since here no problem... First i tried a blinking-led-program, without softdevice, everythings fine. Second i tried the HRS-Example from SDK10 with the S110. I changed the makefile so the ram is allocated right, used mergehex to merge the compiled hex with the s110, burned it via open-ocd, everythings fine. The app on my iphone recognizes the board in 2 seconds, everythings ok.

As i need a ble-uart connection for my project, i tried the ble-uart-example next. compiled fine, but the app doesn´t find the nrf?!?!?? After some minutes for a few second "nodric hrs" popped on, but i couldn´t connect.

Any ideas what i´ve done wrong? Thanks a lot

Grettings from germany Tobias

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    It is hard/impossible to help you without any code or error logs, sorry. You should debug the application. To do this, my advice would be:

    1. Program the S110 SoftDevice once on the device. You can use nRFgo Studio or the nRF5x-Command-Line-Tools (only compatible with a Segger tools) or OpenOCD with any compatible SWD probe. Have a look at my answer if you are looking to do this with OpenOCD and make. It will be much more faster if you do not need to program the SD each time.
    2. Enable GDB to debug your application (without merging with the SD) using the GNU ARM Eclipse plugin. You will find many tutorial on how configure gdb.

    I used the same toolchain as you (I am running Linux). Please post here more details on the error or stack trace.

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  • 0

    It is hard/impossible to help you without any code or error logs, sorry. You should debug the application. To do this, my advice would be:

    1. Program the S110 SoftDevice once on the device. You can use nRFgo Studio or the nRF5x-Command-Line-Tools (only compatible with a Segger tools) or OpenOCD with any compatible SWD probe. Have a look at my answer if you are looking to do this with OpenOCD and make. It will be much more faster if you do not need to program the SD each time.
    2. Enable GDB to debug your application (without merging with the SD) using the GNU ARM Eclipse plugin. You will find many tutorial on how configure gdb.

    I used the same toolchain as you (I am running Linux). Please post here more details on the error or stack trace.

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