Issue with Reading VREGMAIN.DCDCEN with nrfutil.

[Kenta]

Hi,

I am trying to write a hex file created by building with the nRF54L15/CPUAPP to the nRF54L15-DK, and check whether it is in DCDC mode or LDO mode using the nrfutil command.

When I run the following command:

nrfutil device x-read --x-family nrf54l --address 0x40120600

I get the following error message:

Error: Failed to memrd read one or more devices:
* 1057790269: [Probe] Device error: Range 0x40120600..0x40120604 is not covered by any memory, code: Generic

Could you please guide me on how to read VREGMAIN.DCDCEN using nrfutil?

Best regards.

[Amanda Hsieh]

Hi, 

The address of VREGMAIN.DCDCEN is 0x50120600. 

We need to add --direct to the command to read registers. Try with this command "nrfutil device x-read --x-family nrf54l --address 0x50120600 --width 32 --direct"

>nrfutil device x-read --x-family nrf54l --address 0x50120600 --width 32 --direct
1057799082
0x50120600: 00000001

Regards,
Amanda H.

[Kenta]

It worked. Thank you!