I would normally post this at VPuniverse but that website seems to be having trouble these days.
I have competed 3 PIN2DMDs using the V4-Nucleo shield. I have built a few before and I can't remember having the same issue.
The issue is the SD card reader does not seem to work. Is there a way to fault find this problem? I have checked continuity for all of the pins and all are good except SD-CD, but I believe this is not used in any case. The actual SD reader is a waveshare that I have used on the other working PIN2DMD.
I believe that the SD card reader is not working because:
- the firmware update did not work.
- I have put the key onto the card and the DMD is still not activated
_ put fsq and pal files on the card and they are not used
The SD card itself is good, I tried it in a fully working PIN2DMD.