nrf5340 bricked after being programmed with a Mac M1

RE: nrf5340 bricked after being programmed with a Mac M1

user73165 — Wed, 08 Jun 2022 13:13:29 GMT

Hi,

I don't see any reasons for Mac being the culprit. Do you have external inductors for the DC/DC on your custom board? Could you share your schematics? I can convert the case to private first if you prefer it.

regards

Jared

RE: nrf5340 bricked after being programmed with a Mac M1

user66968 — Wed, 08 Jun 2022 12:17:11 GMT

Hi Jared,

3.3V on both. I doubt it’s a hardware issue as other boards from the same run work fine. It’s like programming them with the M1 caused the debug port to lock.

Thanks,

Diego

RE: nrf5340 bricked after being programmed with a Mac M1

user73165 — Wed, 08 Jun 2022 09:18:37 GMT

Hi there,

When you program the board, what voltage do you measure directly on:

RESET pin
VDD pins

regards
Jared