Other Parts Discussed in Thread: MCF8316A
Tool/software:
We are looking at the MCF8316AEVM motor controller for a new design, and I am impressed by some of the functionality. I've read through the 168-page MCF8316A data sheet/manual a couple of times now, but I am left with a couple questions...
1) Are there registers that can be set to adjust the power provided to each phase of the motor? I see the read-only PHASE_CURRENT_x registers, but I am not clear on how to set the drive.
2) I can not find exactly what is being set during the MPET ramp-down phase.
- Is it determining the minimum current required for the mechanical load present at the time MPET runs (and therefore setting the read-only registers PHASE_CURRENT_x)?
- Is it determining the BUS_CURRENT_LIMIT where the chip transitions to constant current mode (reducing torque)?
- Is it setting some other (writeable) registers that set the power level delivered to the motor for each of the phases
Any help is appreciated,
Larry