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bdring / Grbl_Esp32

A port of Grbl CNC Firmware for ESP32
GNU General Public License v3.0
1.69k stars 529 forks source link

spi pin definitions #610

Closed m3chanist closed 4 years ago

m3chanist commented 4 years ago

Hi, I'd like to define my own set of custom pins for spi if possible (for use with TMC5160). Having scoured the source I have only found reference to the CS pin and spi_index which is presumably 0, the default define. Why would I would want to do this you ask? Because I've already made the board, foolishly without looking at the existing designs and noticing they used the standard pins....

Where/how could I do this? Or am I buying a ticket to bodge wire central?

My esp is connected to the 5160 as follows

IO17 = DIR IO5 = STP JP1=DC0 IO18=SDO (not IO19) IO19=CS IO21=SCK (not IO18) IO22=SDI (not IO23) IO23=EN IO16=Diag0 IO4=Diag1

m3chanist commented 4 years ago

No matter, I edited the hardware rather than the software. Its working well, now I'm hunting for the current control and stallguard tuning. Great project, thanks for your efforts.