RE: Custom board is not responsive even after successfully flushing with nRF5340DK with SWD

frogrammer — Thu, 07 Aug 2025 14:32:36 GMT

Yes, before i had these two lines, now i have added them again, it works.

CONFIG_CLOCK_CONTROL_NRF_K32RC_RC=y

CONFIG_CLOCK_CONTROL_NRF_K32RC_XTAL=n

although, it threw me off when VS Code could not detect my board, and nrf Connect desktop programmer spewed out errors beyond my knowledge, and couldn’t show memory layout.

RE: Custom board is not responsive even after successfully flushing with nRF5340DK with SWD

Einar Thorsrud — Thu, 07 Aug 2025 12:30:12 GMT

Hi,

A cable fault does not look likely as from the VS Code screenshot I see that programming the device was successfull. When you write that it does not work, did you do any debugging to see the state of the device (by observing logs or starting a debug session and inspecting the state)?

Is it so that you had the application working on the custom board on the old setup? And do you still get it to run on a DK on your new setup? A typical reason for problesm when going to custom boards, is if that does not have the 32.768 kHz crystal or DCDC inducors, and any of these are enabled in firmware.