AVRPWM2Setup

Parameters

waveform_mode:

integer, from 0 to 2

output_mode:

integer, from 0 to 1 (or 2) depending on the waveform_mode

Description

Every Micro controller has PWM pins which can generate varying voltages from 0V-5V.This function helps to use OC2 pin to produces required output waveform by setting the waveform mode and otput mode.

waveform_mode can take values-

• 0 -> for Phase correct PWM Mode

• 1 -> for Fast PWM Mode

• 2 -> for CTC Mode

output_mode can take values-

For Phase correct PWM Mode:

• 0 for Clear OC2 on compare match when up-counting. Set OC2 on compare match when down-counting.

• 1 for Set OC2 on compare match when up-counting. Clear OC2 on compare match when down-counting.

For Fast PWM Mode:

• 0 for non-inverted output i.e Clear OC2 on compare match, set OC2 at BOTTOM.

• 1 for inverted output i.e Set OC2 on compare match, clear OC2 at BOTTOM.

For CTC Mode:

• 0 to Clear OC2 on compare match

• 1 to Set OC2 on compare match

• 2 to toggle OC2 on compare match

This is curretly dummy function. It provides no functionality but is required for providing support for generating C code for AVR.

Example AVRPWM2Setup(2,0); //This function will select CTC waveform mode and will clear OC2 on compare match

See also

• AVRPWM2SetDuty

Authors

• Ashish Kamble