no logs in terminal for ble_app_uart_c

RE: no logs in terminal for ble_app_uart_c

veletron — Tue, 12 Mar 2019 14:00:15 GMT

I have this exact same issue. Keil V5. NSDK 15.2 Stock code, no logging output via either UART or RTT. In Main, there are two lines:

printf("BLE UART central example started.\r\n");
NRF_LOG_INFO("BLE UART central example started.");

The 'printf' shows in my terminal via UART, but NOTHING is shown for any of the NRF_LOG_INFO lines anywhere in the project. Logging is set to info and turned on in SDK Config.

A lack of any logging makes it near impossible to debug this app or the client app that connects to it, and makes the example useless

Please advise how to enable logging!

Nigel

RE: no logs in terminal for ble_app_uart_c

Evgeny Erlihman — Mon, 18 Sep 2017 15:39:08 GMT

Looking in the map files, i can see that all the .debug_str sections differ in size with mine being bigger. I checked the hex file that you attached on Sep 12, it does not work for me as well, while the hex file you attached on Sep 7 does work.

RE: no logs in terminal for ble_app_uart_c

Petter Myhre — Tue, 12 Sep 2017 14:03:42 GMT

I tried with GCC as well, seems to be working fine.

Here is my hex.

Here is the .map file.

Here is the linker script

RE: no logs in terminal for ble_app_uart_c

Evgeny Erlihman — Thu, 07 Sep 2017 14:41:27 GMT

Same result, i cant find a way to add my map file. Can you please add yours for me to compare and see if there are major differences?

RE: no logs in terminal for ble_app_uart_c

Petter Myhre — Thu, 07 Sep 2017 13:56:35 GMT

The release notes mention that GCC ARM Embedded 4.9 2015q3 was used in testing and verification, maybe you can see if that makes any difference.

RE: no logs in terminal for ble_app_uart_c

Evgeny Erlihman — Thu, 07 Sep 2017 13:52:26 GMT

GNU Tools ARM Embedded\6 2017-q2-update

RE: no logs in terminal for ble_app_uart_c

Petter Myhre — Thu, 07 Sep 2017 13:50:27 GMT

Hmm. What compiler are you using?

RE: no logs in terminal for ble_app_uart_c

Evgeny Erlihman — Thu, 07 Sep 2017 12:58:56 GMT

Yes, i can see logs using this hex file

RE: no logs in terminal for ble_app_uart_c

Petter Myhre — Thu, 07 Sep 2017 11:24:24 GMT

Strange. Here is the hex file I compiled. Does it work?

RE: no logs in terminal for ble_app_uart_c

Evgeny Erlihman — Wed, 06 Sep 2017 16:53:33 GMT

Another thing that i just noticed, if i flash ble_app_uart_c_pca10040_s132.hex, i can see the logs on my terminal. But if i flash the softdevice and the application that i built, the logs would not work for me.

RE: no logs in terminal for ble_app_uart_c

Evgeny Erlihman — Wed, 06 Sep 2017 14:40:45 GMT

Hi Petter, Thank you for testing it out! What version of SEGGER software and terminal application were you using?

RE: no logs in terminal for ble_app_uart_c

Petter Myhre — Wed, 06 Sep 2017 14:19:04 GMT

Just tested the example. Seems to be working fine here. Unmodified it should output to both UART and RTT.