Test program not working in Custom Board

RE: Test program not working in Custom Board

ovrebekk — Mon, 30 Jan 2017 07:52:39 GMT

That is what matters. Hopefully you will have less issues from now on :)

RE: Test program not working in Custom Board

Rodrigo Lorenzo Leal — Fri, 27 Jan 2017 15:00:44 GMT

Yeah, I think that too. Another possibility might be the changes I did in the folder structure (I deleted unused files, examples etc and just kept the components and our application). Usually, I check the makefile very carefully, but I must have missed a flag or something. The good thing is we got everything running even with our folder structure.

RE: Test program not working in Custom Board

ovrebekk — Fri, 27 Jan 2017 14:00:32 GMT

That is a very sound strategy. I am just surprised that the code you attached would not run without an external LF clock. Since it only uses GPIO, RTT and nrf_delay_ms I would expect it to run fine even without a 32k clock.

RE: Test program not working in Custom Board

Rodrigo Lorenzo Leal — Fri, 27 Jan 2017 13:52:41 GMT

Torbjørn! Tha's why is a test program. I wanted to start with something small and that I could verify right away. Since our custom board has a lot of IC and components, If I tried to load our main app right away, debugging that would have been a nightmare. Fortunately, we already manage to advance quite fast on the testing and even have Bluetooth functionalities going!

RE: Test program not working in Custom Board

ovrebekk — Fri, 27 Jan 2017 13:41:20 GMT

Hi Rodrigo. It is good to hear you found the issue, but I am a bit surprised that the LF clock setting had an effect on your test program, since it only toggles a pin. I assume you were also running some more complicated examples?

RE: Test program not working in Custom Board

Roger Clark — Wed, 25 Jan 2017 19:59:21 GMT

Thats interesting.

BTW. I had other bizarre issues, when some one gave me 32.000 Khz crystals to fit on their board, but the value is supposed to be 32.768khz I cant exactly remember what happened, but I remember the code appeared to run, but did not run correctly ;-)

RE: Test program not working in Custom Board

Rodrigo Lorenzo Leal — Wed, 25 Jan 2017 10:54:57 GMT

Solved the problem.

In the end, the problem was that I didn't have a 32KHz crystal on my custom board. After I changed the source of the Low-Frequency Clock by writing the register, it worked.

Afterward, I just added the correspondent definition of the clock source in my custom board header file and deleted the Low-Frequency Clock initialization.

As a general comment, If you're going to drop the 32KHz crystal, don't forget to add the following line in the custom_board.h

#define NRF_CLOCK_LFCLKSRC      {.source        = NRF_CLOCK_LF_SRC_RC,              \
                                 .rc_ctiv       = 16,                               \
                                 .rc_temp_ctiv  = 2,                                \
                                 .xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM}

The rc_ctiv and rc_temp_ctiv parameter where configured acording to this.

RE: Test program not working in Custom Board

Roger Clark — Wed, 25 Jan 2017 06:42:25 GMT

Is that the entirety of your test program, or are you actually using something like the blinky example?

Have you tried other pins, or is it only pin 10 that works?

I suspect you have a hardware fault(s)?

RE: Test program not working in Custom Board

ovrebekk — Tue, 24 Jan 2017 10:40:36 GMT

Hi Rodrigo

Can you debug the code on your custom board?