Using nRF52DK with VisualGDB. Trying to get logging enabled

[borje]

(NRF_LOG_ENABLED=1) but get lots of undefined references from e.g uart-related parts (nrf_drv_uart_init). Any tricks to get by easily? Börje

[Daniel Wang]

What SDK version is this? Also, what examples in the SDK are you testing? Where are you setting NRF_LOG_ENABLED=1? in sdk_config.h or as a define?

[Roger Clark]

NRF_LOG_ENABLED=1 directs the NRF_LOG_xxx statements to the UART, so you need to connect a USB to Serial adaptor to whichever pins are defined to be the UART for your board.

[borje]

I'm using sdk 12.1.0 and ble heart rate service plain. I think I should be able to use the SEGGER usb connection uart as it shows in windows as COM9. Börje

[Sigurd]

Then you also need to enable the RTT logging. Make sure you have NRF_LOG_BACKEND_SERIAL_USES_RTT 1 in sdk_config.h. Remember to enable the NRF_LOG in sdk_config.h. See this answer, and this answer on how to use the configuration wizard.

[borje]

I actually got it to work on the COM9 using PuTTY. However, the app still crashes at power_manage with the following TTY output: SDH:INFO:sd_ble_enable: RAM START at 0x20002128 SDH:WARNING:sd_ble_enable: app_ram_base should be adjusted to 0x20001fe8 SDH:WARNING:ram size should be adjusted to 0xe018 APP:INFO:Heart rate collector example APP_ERROR:ERROR:Fatal