Application not flashing to board

RE: Application not flashing to board

bsas — Fri, 05 Jul 2019 21:47:01 GMT

Hi Hung,

I have resolved the issue. I'm not 100% what the issue was, but I believe it was some incorrect FLASH/SRAM linker macros.

Thank you for all your help.

RE: Application not flashing to board

Hung Bui — Mon, 01 Jul 2019 14:00:13 GMT

If instead of debugging you simply flash your application using Segger Embedded Studio, would it work ?

Are you testing on your custom board or a nRF51 DK ? Do you have 32kHz crystal on the board ?

If you test the TWI example would it work ?

RE: Application not flashing to board

bsas — Fri, 28 Jun 2019 23:31:12 GMT

Hi Hung,

I'm using SEGGER.

Yes, if I debug the application in SEGGER, it works fine.

I've added some of the TWI_Scanner functions to my project, as well as modifying the nus_data_handler function to send some data from the TWI slave when it recieves certain characters via BLE.

Yes. As a test, I used ble_app_uart and changed the name of the device and flashed the hex and SD to my board, and it works fine.

Thank you,

Bennett

RE: Application not flashing to board

Hung Bui — Fri, 28 Jun 2019 14:57:54 GMT

Which IDE do you use to flash and debug your application ?

If you debug your application did it work ?

Which modification did you make ? If you simply change the advertising name, would it work ?

RE: Application not flashing to board

bsas — Thu, 27 Jun 2019 23:52:41 GMT

Hello Hung,

I have debugged my application (along with other unmodified examples) and they run as expected. It's only when I try flashing the application with nRF Connect (or any other method, for that matter) that I do not see the board advertise/application run. Again, it does work when I flash unmodified examples, however.

Thanks,

Bennett

RE: Application not flashing to board

Hung Bui — Thu, 27 Jun 2019 12:40:43 GMT

Hi Benneth,

Please try to debug the application. You can start first by testing a simple application (the blinky application for example) without softdevice. Just to make sure the chip running correctly.

Then you can test and debug application with softdevice (ble_app_hrs for example). Please step in the code and debug.

Please follow this debug guide.

RE: Application not flashing to board

bsas — Wed, 26 Jun 2019 19:12:13 GMT

Hi Hung,

Thank you for your response. After I flash the application and soft device, I do not see it advertise, I don't see anything reported on the nRF Log or anything like that.

i have the NRF51 DK, with a 32 kHz crystal. I also tried using the RC oscillator instead, and get the same results.

Thanks,

Bennett

RE: Application not flashing to board

Hung Bui — Wed, 26 Jun 2019 12:12:44 GMT

Hi Bennett,

It's more likely a bug in our nRFConnect software. Seems that it doesnt recognize the S130 softdevice when reading the flash. I will report this to the team.

But it shouldn't be a big problem. The chip should still operate. Do you see the chip advertising after you flash the softdevice and the application ? Note that the precompiled hex in the examples in the SDK already include a softdvice.

Which hardware board do you have ? Please be aware that in the example we expect the 32kHz crystal on board. If you don't have 32 kHz crystal you would need to configure the soft device to use 32kHz RC instead.

RE: Application not flashing to board

bsas — Tue, 25 Jun 2019 17:43:05 GMT

Hi Hung,

Yes, I've tried using unmodified examples, both with and without softdevices, and they seem to be flashing fine. I see the same thing as above in the nRF Connect app when I flash the examples with SDs.

I am using S130 and SDK 12.3.0.

RE: Application not flashing to board

Hung Bui — Tue, 25 Jun 2019 12:25:54 GMT

Hi Benneth,

Have you tried to test with the unmodified example(s) ? When you flash the example and the softdevice do you see it reflected in nRF Connect app ?

Which softedvice do you use and which SDK version ?