Can't flash PCA10040

RE: Can't flash PCA10040

Petter Myhre — Thu, 17 Aug 2017 13:53:52 GMT

I'm not sure. Suspecting a hardware issue since you are able to flash external chips. Have you checked that the chip is powered? I guess you could also try to use Debug In, and see if you can program it with the working PCA10040 v1.1.1, when running with a battery or similar.

RE: Can't flash PCA10040

Thu, 17 Aug 2017 09:38:13 GMT

Exactly, I want to program the onboard nrf52. I've removed the debug cords, but it doesn't seem to make a difference.

I've compared all of the solder traces between the two boards and they look identical. I don't see any other obvious hardware modifications. So you don't think it's likely to be a software issue?

RE: Can't flash PCA10040

Petter Myhre — Thu, 17 Aug 2017 09:11:52 GMT

So you don't want to program external chips with the board anymore? You want to use the on board chip together with nRF Connect? Firstly I would remove anything from the Debug Out port, if it then doesn't work I would suspect there has been done hardware changes to the board. Could that be?