nrf connect sdk v2.9.0 logs not printing

RE: nrf connect sdk v2.9.0 logs not printing

Marte Myrvold — Mon, 20 Jan 2025 12:34:41 GMT

Hi,

You are selecting the nRF21540 DK as board target, but the device you link to is the Adafruit Feather nRF52840 Sense, so the correct board target is adafruit_feather_nrf52840/nrf52840/sense. This could explain why you are having issues seeing the logs. Please try using adafruit_feather_nrf52840/nrf52840/sense as board target instead.

Additionally, the Matter samples are not the simplest samples so I recommend selecting a simpler sample to test whether logging works.

Best regards,
Marte

RE: nrf connect sdk v2.9.0 logs not printing

Prajwal Tayade — Fri, 17 Jan 2025 12:05:54 GMT

im using custom board nrf21540dk i.e., while building code selectes device is nrf21540dk/nrf52840.

https://learn.adafruit.com/adafruit-feather-sense/pinouts

i tried matter sample light switch code that code also showing like -

above is the build configuration of matter light switch sample code

devzone.nordicsemi.com/.../matter_5F00_light_5F00_switch_5F00_build_5F00_logs.txt

after build showing this error

for this error i add this configuration into prj.conf file

SB_CONFIG_MATTER_FACTORY_DATA_GENERATE=n

CONFIG_CHIP_FACTORY_DATA=n

but now facing new error -

RE: nrf connect sdk v2.9.0 logs not printing

Marte Myrvold — Fri, 17 Jan 2025 11:44:35 GMT

Hi,

I tried both with an empty prj.conf and with the following:

CONFIG_LOG=y
CONFIG_UART_CONSOLE=y
CONFIG_LOG_BACKEND_UART=y
CONFIG_UART_CONSOLE=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
CONFIG_LOG_PRINTK=y
CONFIG_GPIO=y

CONFIG_USE_SEGGER_RTT=n
CONFIG_LOG_BACKEND_RTT=n

CONFIG_LOG_BUFFER_SIZE=2948

Do you see any logs if you try a different sample, such as the Bluetooth Peripheral LBS sample located in nrf/samples/bluetooth/peripheral_lbs?

Best regards,
Marte

RE: nrf connect sdk v2.9.0 logs not printing

Prajwal Tayade — Fri, 17 Jan 2025 10:12:42 GMT

hello

with empty prj.conf no logs printing. i tried serial terminal app but for nrf connect sdk v2.9.0 no logs printing in serial terminal but for v2.7.0 logs printing.

in prj.conf file which configuration you include.

RE: nrf connect sdk v2.9.0 logs not printing

Marte Myrvold — Fri, 17 Jan 2025 09:55:32 GMT

Hi,

Are you able to get logs if prj.conf is empty? Have you tried using a different terminal emulator, such as the one in the nRF Connect for Visual Studio Code extension or the Serial Terminal app?

I tried to reproduce the issue, but I got logs with the Hello World sample in v2.9.0. The only difference I saw when using the Kconfig options in your screenshot was that the "hello world" line was printed before the nRF Connect SDK and Zephyr banners instead of after.

Best regards,
Marte