Serial port fails after softdevice_setup in RUN mode. Works in DEBUG. HFCLK?

RE: Serial port fails after softdevice_setup in RUN mode. Works in DEBUG. HFCLK?

Steph van Schalkwyk — Wed, 21 Feb 2018 19:12:35 GMT

Hi.

I may revisit this later if we decide to add FreeMODBUS. Right now I only use it for debugging.

It does seem that the UART IRQs are not asserted after softdevice_setup.

I'll come back to this at some stage.

Thanks for the help.

RE: Serial port fails after softdevice_setup in RUN mode. Works in DEBUG. HFCLK?

Jørgen Holmefjord — Tue, 20 Feb 2018 12:29:00 GMT

Let me know if you want us to investigate this further. This will most likely require you to upload/described your project in more details. If you do not want to share code in public, you can create a new private case.

Are you talking about the UART IRQs?

RE: Serial port fails after softdevice_setup in RUN mode. Works in DEBUG. HFCLK?

Steph van Schalkwyk — Thu, 15 Feb 2018 16:28:22 GMT

Hi Jorgen

I changed the serial port from interrupt to polling and that is working for me now. It isn't entirely satisfactory, but will have to do.

It seems the IRQ is not asserted after the softdevice initialization (S212).

Regards

Steph

RE: Serial port fails after softdevice_setup in RUN mode. Works in DEBUG. HFCLK?

Jørgen Holmefjord — Wed, 14 Feb 2018 13:47:05 GMT

Hi,

If the code is running after softdevice_init function call, it does sound like this could be an issue with the HFCLK, as all clocks are run in Debug mode. However, it sounds strange that the clock should be running before initializing the softdevice, but not after. Have you tried calling sd_clock_hfclk_request after softdevice_init, to see if this solve the issue?

Could you provide some more details on what is happening in the s_write function, and the UART/softdevice config?

Best regards,
Jørgen