How to write SDcard with fatfs on different pin.

RE: How to write SDcard with fatfs on different pin.

y001 — Wed, 17 Oct 2018 09:05:21 GMT

I rewrote sdk_config.h and it worked well !!

Thank you very much.

RE: How to write SDcard with fatfs on different pin.

Jørgen Holmefjord — Tue, 16 Oct 2018 08:06:02 GMT

Like I suggested before, you are initializing NRF_LOG and have the UART backend enabled. This use GPIO P0.06 by default and will prevent you from using the pin with SPI. To disable NRF_LOG module, change your sdk_config.h file to the following defines:

#define NRF_LOG_ENABLED 0

#define NRF_LOG_BACKEND_UART_ENABLED 0

RE: How to write SDcard with fatfs on different pin.

y001 — Tue, 16 Oct 2018 04:28:51 GMT

Is this OK with this?

devzone.nordicsemi.com/.../0257.sdk_5F00_config.h devzone.nordicsemi.com/.../0385.main.c

RE: How to write SDcard with fatfs on different pin.

Jørgen Holmefjord — Mon, 15 Oct 2018 07:32:48 GMT

Yes, any GPIO of the nRF52832 can be used for UART interface. Did you check your code and make sure that you do not initialize UART of NRF_LOG with UART backend on the same pins?

Can you upload your main.c and sdk_config.h files?

RE: How to write SDcard with fatfs on different pin.

y001 — Sat, 13 Oct 2018 15:01:06 GMT

Thank you for reply!

It is written that the nRF52DK you are using can be used with SPI for P0.06-P0.08,but should I change the setting?

I would be happy if you let me know if you know the solution.

RE: How to write SDcard with fatfs on different pin.

y001 — Sat, 13 Oct 2018 14:52:55 GMT

Thank you for reply!

The chenged part is only pin number.

After changing the pin, I used the LED to check if it is usable.

Should I show all thw contents of main.c?

RE: How to write SDcard with fatfs on different pin.

Jørgen Holmefjord — Wed, 10 Oct 2018 12:47:17 GMT

Please make sure you do not initialize UART or NRF_LOG in the application. The pins P0.05-P0.08 is by default used for UART interface on the nRF52-DK.

RE: How to write SDcard with fatfs on different pin.

awneil — Wed, 10 Oct 2018 09:51:49 GMT

[quote userid="73638" url="~/f/nordic-q-a/39335/how-to-write-sdcard-with-fatfs-on-different-pin"],I can not write SDcard[/quote]

So what debugging have you done to find where it's going wrong?

Have you confirmed that all those pins are available for use?

Use 'Insert Code' to properly post source code: