add uart service into butonless_dfu

[Stas]

I added uart service (here and here) and I think in part of ble everything goes well. I have blinking led1 and can see all my services. Then I tried add uart part. After adding uart_init, uart_event_handler, nus_data_handler functions, some defines (solved all compile error) I got led3 is always ON. in NRF_LOG nothing, in NRF_CONNECT nothing.

[Hung Bui]

Maybe you want to check if there is any assertion, most likely it was wrong RAM configuration, as you need to increase the number of Vendor specified UUID. Please try to follow this guide to know if assertion occurs and how to track it down.

[Stas]

Sorry for long delay before answer. Actually I increased vendor UUID to 2, then I change IRAM settings and get nothing about IRAM compliant in LOGS. But I still get fatal error and reset. I tried to debug with guide you reference to. I set break point in front of while loop, go into debug mode (keil), run program, and broke on raw NRF_BREAKPOINT_COND; of file app_error_weak.c. As I understand we need to get info about error's location in app_error.c file so I tried add to watch window vars m_error_data, m_error_data.p_file_name again run program, but in watch window I see only . Here's screen ybex.com/.../1294hufolwh27q0sycvap6s96q8g9eqgra6thdbr.html

in RTT_LOG I got

0> app: Setting vector table to bootloader: 0x00078000

0> app: Fatal

ybex.com/.../9c3iaeahpx2rq8db8sprejk5wf1xtnkmd692iyt3.html

[Jørgen Holmefjord]

If you want to read the values of m_error_data, you need to set the breakpoint after it is assigned (close to the while(loop); at the end of app_error.c). You should also be able to read the error code/line number/file name in the call stack + locals window, under app_error_handler, when you are breaking in app_error_weak.c.

[Stas]

if I understand correct I need to set breakpoints against

UNUSED_VARIABLE(m_error_data);

in app_error.c file ybex.com/.../zizrjniq4j76wun4urnjqig0rqeqdyh2oqslhdkt.html and against

 app_error_save_and_stop(id, pc, info);

in app_error_weak.c ybex.com/.../pptrwrkbj0ylfzjmg4ylrmtlpv800l3mahsfxqlm.html

Why in value of p_file_name I see a little bit confused symbols? ybex.com/.../w557s4mngy4601deujh7ygyhhywvjtimfaq00n9y.html

PS Its not about uart issue.

[Jørgen Holmefjord]

From the value of th PC, it looks like the error originates from the softdevice. This is most likely why you are not seeing any usefull information. What is the issue?