Hello Friends:
Perhaps someone out there has some advice. I am building a couple A2DVI boards, v2.0.
I have one working card, but the others are having issues with the PiPico, specifically accepting the firmware.
These are PiPico 2040 boards and not PiPico 2. They are genuine PiPico boards (at least they are marked as such).
I am using the proper firmware type when uploading to the Pico.
I have tried a couple PiPicos and they all flash SOS with any version of the firmware beyond 0.7, the original firmaware. (although I have not tried v0.8)
I have one PiPico working. It is a PiPicoH. But the only difference between a PiPico 2040 and a PiPico H 2040 should be a debug plug on the opposite end of the board from the USB.
I have tried Mac and PC, I have tried different cables, I have tried different USB ports, I have tried flashing the nuke file to clean the board completely. I have tried flashing it in and out of the A2DVI card.
Frankly I am perplexed.
Anyone else run into this?
Thanks in advance,
Mark
I also tried rebuilding the v1.7 firmware. Built correctly but again, will not load onto the PiPico.
Firmware up to v1.0 will load.
Load fail begins with firmware 1.1 and above
Are you trying to program Picos by themselves through USB, or are they permanently soldered to the card?
I chose to go with headers on the picos and a socket on the card.
I have tried programming the picos on and off the card. None of the firmware beyond 1.0 will load on the pico w/o the pico going into SOS mode.
Being on the card or out should not influence the ability to program the pico, as I understand it. And, as noted, I can program firmware versions up and including 1.o to the pico.
The pico that has worked with firmware >1.0 is a PiPico H. But as noted, the only difference between a Pico and a Pico H is a soldered header for debug board connection, otherwise they are electronically identical, if my research is correct.