How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Yclee — Tue, 15 Sep 2020 08:41:24 GMT

Thank you!

I will check Error condition link and ignore this type of error(576).

Best Regards,

Yclee

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Vidar Berg — Tue, 15 Sep 2020 08:28:06 GMT

You are getting an Error condition on the UART bus, so it's not an actual NON_MEM error. You may try to ignore this type of error by commenting the APP_ERROR_HANDLER() at line 576.

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Yclee — Tue, 15 Sep 2020 08:26:13 GMT

And I tried

1) increase RX/TX buffer size,

2) enable flow control,

but the result is not changed.

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Yclee — Tue, 15 Sep 2020 08:01:08 GMT

It saids error at main.c 575,

(main function is in the project UART-ADC example )

the main function code is

575line: case APP_UART_COMMUNICATION_ERROR:
576line: APP_ERROR_HANDLER(p_event->data.error_communication);
577line: break;

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Vidar Berg — Tue, 15 Sep 2020 07:52:32 GMT

Hi,

[quote userid="93366" url="~/f/nordic-q-a/65902/how-to-solve-the-error-12-nrf_error_data_size-in-uart-communication-code/269544"]The debug results is like this. ERROR 4 NO_MEM.. (Should I see more detail debugging results?)[/quote]

Yes, you should see the full error message if you expand the terminal window. It should tell you the file name and line number of where error 4 occured.

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Yclee — Tue, 15 Sep 2020 07:42:09 GMT

Hi, yes I had enabled debugging log.

The debug results is like this. ERROR 4 NO_MEM.. (Should I see more detail debugging results?)

I was changed the start memory address(RAM_START=0x20002d28) since the earlier error message suggest that

changing the start memory address. After that, the only NO_MEM error is occured while UART with DSP28335 module.

So I doubt that the data format between two module maybe different. However, the UART/UARTE has 1 start bit,

I think the other problem may be exists.

cf)

I connected the RX/TX/GND between 2 modules.

In PC connection environment, RX/TX/GND/VDD connected with Serial to USB module.

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Vidar Berg — Tue, 15 Sep 2020 07:00:45 GMT

Hello,

The app_error handler is invoked when an error has been passed to one one of the APP_ERROR_CHECK() macros in your code. So we need to find out where this happened. Do you have debug logging enabled?

The UART/UARTE uses 1 start bit.

Best regards,

Vidar

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Yclee — Tue, 15 Sep 2020 05:57:26 GMT

Hello,

I am using

https://github.com/NordicPlayground/nRF52-ADC-examples

examples. And after I upload my question, I checked that the same error is not occured in BLE-PC communication(UART).

The error occured in app_error_weak line 100 NRF_BREAKPOINT_COND and sometimes ERROR 4 [NRF_ERROR_NO_MEM] occurs. I think the DSP-BLE connections or data (start bit, etc.) may be problem.

Can I change start bit setting in nRF52832 project? (I think this is the problem)

Thank you for your reply.

Best regards,

Yclee

RE: How to solve the ERROR 12 [NRF_ERROR_DATA_SIZE] in UART communication code?

Vidar Berg — Tue, 15 Sep 2020 05:52:21 GMT

Hi,

Are you able to tell where the errors are returned in your code, is it returned by the UART driver functions? Also, which SDK example did you base your project on?

Best regards,

Vidar