1 Continuous MCPWM at a time

[Bruce]

Something like this might help so it doesn't drop-off the end and restart from the beginning. It also loads the new duty-cycle values.

PTCON1=%10000000
OVDCOND = %00000010 'PWM on PWM1
 
Main:
   ADCON0.1 = 1         ' Start the conversion
   While ADCON0.1=1     ' Wait for it to complete
   Wend
   Duty.HighByte = ADRESH ' get result from AN0
   Duty.LowByte = ADRESL  ' Increment buffer pointer
   PDC0L = Duty.LowByte
   PDC0H = Duty.HighByte
   PDC1L = Duty.LowByte
   PDC1H = Duty.HighByte
   PDC2L = Duty.LowByte
   PDC2H = Duty.HighByte
   GoTo Main

It's untested, but should work. I didn't check the A/D part, but it looks ok at a glance.

You might want to insert a PAUSE before the GOTO Main?