Inline current measurement question for INA253 and stepper

[Valentine]

@runger

current limiting in terms of protection circuits, then you would have to measure very quickly, and it is doubtful whether it’s a good idea to do this via a MCU. A dedicated comparator

That’s a good one. However, I’d go a step further and offload the current limiting to a fast hardware solution, rather than rely on the MCU. Or get a driver that current-limits on a built-in silicone level.

Oh, look, what a surprise, the DRV8876 driver allows for current limit to be set with an adjustable external voltage reference. Section 7.3.4.3 OUTx Overcurrent Protection (OCP) from the documentation, page 16.