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RP64 Won't Boot After Power Down
ColPanic_
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Joined: Apr 2021
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#3
04-26-2021, 06:53 PM
Thanks LMM!

I think I've actually found the solution to my latest boot problem: if I have UART2 TX connected when I bring up the external power supply, the RP64 consistently fails to boot. Otherwise, it's booting up just fine. The wiki only mentioned UART2 RX should be disconnected during boot, so this was unexpected.
This should be easy to work around, I can probably just tri-state that pin on my microcontroller for a few seconds during power up and be OK.

This wasn't the first time I had problems booting from SD, though it was the first time I had the UART connected. I think I'll order an EMMC module just to be safe.

I'll post my project as soon as I know everything's working as it should!

ColPanic_
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Messages In This Thread
RP64 Won't Boot After Power Down - by ColPanic_ - 04-25-2021, 04:56 PM
RE: RP64 Won't Boot After Power Down - by LMM - 04-26-2021, 01:13 AM
RE: RP64 Won't Boot After Power Down - by ColPanic_ - 04-26-2021, 06:53 PM
RE: RP64 Won't Boot After Power Down - by LMM - 04-27-2021, 01:14 AM
RE: RP64 Won't Boot After Power Down - by LMM - 04-29-2021, 04:49 AM
RE: RP64 Won't Boot After Power Down - by gechu - 09-04-2021, 12:12 PM
RE: RP64 Won't Boot After Power Down - by tizbac - 04-08-2023, 06:56 AM
RE: RP64 Won't Boot After Power Down - by dkebler - 06-27-2023, 07:31 AM

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