PCB Critiques

[at3]

Hello, I am creating 2 pcbs, one for controlling 6 stepper motor drive boards, and one for controlling 8 servos. Both have an STM32 and CAN communication. It would be great if you could critique my designs and tell me where I could improve so they have the maximum chance of working

Zoomed Out stepper

zoomed in StepperServo

Thanks so Much!!

[ahsrabrifat]

Did you simulate your circuit? 

[Andrew Neil]

Include NRST on your debug connector.

Provide a UART for diagnostic output; also some "uncommitted" IOs ...

[LCE]

> also some "uncommitted" IOs ...

... with at least some testpoint / pad for debugging via GPIO & scope.