[Larken]

Thanks
Here is my little 4 axis motherboard with plugable L6474 toasters.
The problem is probably the mosfets in the output bridge don't have a low enough on resistance .

The other thing i don't like is having to send serial data every time just to change the current when the motor is idling. This is prone to eventually glitching with the wrong current value and will cause the motor to stall.
They should have a separate line for 2 banks of settings.

Larry