I have found that 16f72 has only FSR(at addr. 04,84,104&184h).from the datasheet,could that be the reason for the errors?.implementing this seems a tedious task for me as a beginner in basic and i need further help. can't the anded schematics attached to my last post do the steering?. from what i understand by using four ports with buffers to steer the PWM would mean configuring the four ports as input permanently, is it? i will appriciate the compile portion so that i can use scope to verify the PWM outputs.

babalola.