I’m back, did not blow my budget on blackjack.
Made some progress on the Jackhammer.
By the end of this week I’ll get it to a point to fabricate.
Added the entire MCU section, CANBUS, SPI, HALL sensors, Serial, NTC thermistor and a bunch of LEDs for the spare pins for people to use for visual debugging. Plus 5V for an external fan.
I’m going away with the USB, instead you will need a separate UART debugger probe to test, this is not a hobby board anymore.
Biggest change is I went for ultra-fast Hall inline current sensors, no sense resistors / sense amplifier. This also removes the common mode voltage limit. That way, I could get the board up to 100V if properly configured with the right components.
Also, the board has split power and control ground planes.