Implementing SAADC example to send data over Bluetooth

RE: Implementing SAADC example to send data over Bluetooth

Susheel Nuguru — Wed, 02 Oct 2019 10:08:29 GMT

[quote user="joneves"]While running "saadc_sampling_event_init" the program gets into "app_error_fault_handler" inside "app_error_weak.c"[/quote]

This is something you can debug by yourself. Please look at this blog which will make you understand how to debug errors that lead to app_error_fault_handler.

[quote user="joneves"]Is this a memory issue? What I'm I doing wrong and how should I solve it? If it is possible.[/quote]

The error code will give us a proper direction to look into. Can you please tell me what error code you got with APP_ERROR_CHECK, that lead your code execution into app_error_fault_handler?

RE: Implementing SAADC example to send data over Bluetooth

joneves — Tue, 01 Oct 2019 15:22:25 GMT

After the debug I discovered that apparently I get stuck in the function "nrf_log_panic" inside "nrf_log_frontend.c".

The program gets in this function from the "saadc_sampling_event_init" function in my main.

While running "saadc_sampling_event_init" the program gets into "app_error_fault_handler" inside "app_error_weak.c"

The "saadc_sampling_event_init" runs ok until:

timer_cfg.bit_width = NRF_TIMER_BIT_WIDTH_32;

Is this a memory issue? What I'm I doing wrong and how should I solve it? If it is possible.

RE: Implementing SAADC example to send data over Bluetooth

awneil — Tue, 01 Oct 2019 13:46:12 GMT

[quote userid="82582" url="~/f/nordic-q-a/52752/implementing-saadc-example-to-send-data-over-bluetooth/212834"] I'm not that experienced writing code this way[/quote]

Maybe start here, then:

https://infocenter.nordicsemi.com/topic/struct_nrf5gs/struct/nrf5gs_sw_dev.html

There is are specific sections on debugging; eg,

infocenter.nordicsemi.com/.../debug.html

RE: Implementing SAADC example to send data over Bluetooth

joneves — Tue, 01 Oct 2019 13:25:45 GMT

To be honest with you, I thought about using the debugger to understand what is happening better. But as I'm not that experienced writing code this way, I'm even less using debug tools. Not that sure how to configure it.

Anyway, I was trying to understand if there was any known issue or direct tip.

I will search a bit more to understand how to make a proper and useful debug. If you have any tip on this...it would be really welcome 🙂

RE: Implementing SAADC example to send data over Bluetooth

awneil — Mon, 30 Sep 2019 22:13:57 GMT

[quote userid="82582" url="~/f/nordic-q-a/52752/implementing-saadc-example-to-send-data-over-bluetooth"]Nordic nRF52840 PDK[/quote]

You mean the Preview Dev Kit?

That was early silicon with known issues - you should get a current Dev Kit.

[quote userid="82582" url="~/f/nordic-q-a/52752/implementing-saadc-example-to-send-data-over-bluetooth"]Apparently it is not reaching the Bluetooth device "generation" function[/quote]

Have you used the debugger to see what's happening in the code?

Are you using a Debug configuration - with log outputs ... ?