Hey I’m the engineer that designed the MicroMod Main boards and I am keen to discover the source of the issue, if there is one. Paulvha has been kind enough to post this on the Main Board Double hardware repository but I’ll try to post here first and close the issue when we find a solution.
Link to repository: https://github.com/sparkfun/SparkFun_Mi … e/issues/3
So far, I’ve tried to destroy my MM SAMD51 Processor Board with and ESP32 Function Board in slot zero following the steps Paulvha outlined. I’ve tried two other function boards with this particular Processor Board and I’ve done other unkind things to my Processor board like swapping the jumper mid upload, but no luck yet. I need more processor boards and more time.
I’ll update as I know more.