[Grbl_Esp32 Issue#267] How to correctly write a CPU map

#1 – bdring 于 2019-10-26

cpu_map.h has a lot of examples and every feature should be referenced somewhere.

I would be careful on some of your spare pins. Especially the ones used for the flash. See this wiki page.

https://github.com/bdring/Grbl_Esp32/wiki/Setting-Up-the-I-O-Pins

Those flash pins are used for on board SPI flash. That is where the firmware is stored. Even wiring them out to a ocnnector could cause problems. You cannot use them anyway.