[nRF54L15-PDK v0.8.1] Problems with burning external boards

[zero]

Dear devzone,

I followed this instruction to use nRF54L15-PDK v0.8.1 to burn external boards. The wiring diagram is as follows:

Command line input: nrfutil device recover
The following error message appears:

There is no problem burning external boards with nRF52840-DK v3.0.2.
How can I use nRF54L15-PDK v0.8.1 to burn external boards?

BR,

Zero

[Asbjørn]

Hi Zero,

I assume with your reply that it is still not working?

I had a go with what I have available here and I can use my nRF54L15-DK 0.8.1 to program an nRF53832 DK and a nRF5430 Thingy. I have nRFUtil 7.13.0, but I don't think that should make much difference. Just as an attempt, are you able to program your nRF2840-DK with the nRF54L15-DK?

Do you have an oscilioscope or some probe available to monitor the lines of the DEBUG_OUT? What sort of device is on the custom board you are trying to program?

Best regards

Asbjørn

[zero]

Hi Asbjørn，

Now we know the problem. 1 pin SWD0_VTG in debug_out needs to be given a high level to be consistent with the vdd voltage of the external board. 

Thanks for your support

BR,

Zero