TMC5160 has 4 amp support for the big stepper motors. I have some they are SPI communications only and are overkill for all that we are doing here.


RRF is RepRap Firmware. With 512k flash we are limited and can run RRF in a limited capacity. But with the 1m flash we have room for all of RRF and its features. I have still never ran the RRF so I can not speak with authority on this subject. ....yet.

Also I am sorry for the clean pictures of the chip. I wanted to see how bad the damage was so I wiped the chip clean. There was a tiny bit of burn/soot/ash type material around the lump. Really just a tiny bit, but enough to at least tell something burnt right there. My bad for wiping away the carnage.