IPWM callibration

I think that the best way to do this is to turn on all the low side mosfets all the time with the motor disconnected. That way there will be no current flowing but the 2175s should have a high enough Vbs without switching.

I am a little confused by the PWM outputs that I need to give. Here is a summary to clear it up in my mind:

10% duty cycle in dialogue box - 95% high side, 2% low side (difference due to deadband)

100% duty cycle: now it is about 10% low side. I think that using the "percentage option" does not work.

I have changed all the options to clock cycles (period = 37500, duty cycle = 37500)
I have about 60% low side, 40% high side.

I tried to use 5000 for each and now it is back to about 10% - WTF?

Tried both at 50000 and now it is 20% low. I don't think that the period does anything (or maybe 60000 is the smallest that it can go).

60000 for each - only just under 10%

50000 for period and 60000 for pulse width.

I THINK THAT IT MAY HAVE AN INBUILT FUNCTION TO MAKE SURE THAT YOU CANNOT PULSE HIGH SIDE MORE THAN ABOUT 90%. AS I HAVE THE SIGNALS INVERTED IT IS ACTUALLY STOPPING ME PULSING THE LOW SIDE MORE THAN 90%