PWMOn for AVR

Syntax:

  PWMOn

Command Availability:

This command is only available on the Atmel AVR microcontrollers with a Timer/Counter0 OC0B register.

Explanation:

The PWMOn command will only enable the output of the OC0B/PWM module of the Atmel AVR microcontroller.

This command is not available for any other OCnx/PWM modules.

Example:

    'This program demonstrates the PWMOn and PWMOff commands
    'of the fixed mode HPWM on OC0B pin.

    #chip mega328p,16

    'activate appropriate PWM output pins
    dir PortD.5 Out     'OC0B

    'define PWM_Freq in kHz
    'define PWM_Duty in %

    #define PWM_Freq 40
    #define PWM_Duty 50

    do

      'turn on/off single channel 40 KHz PWM on OC0B pin
      PWMON          ' <<< the PWMOn instruction
      wait 5 s
      PWMOFF
      wait 5 s

    loop

Key line: PWMON — enables the OC0B PWM output using the frequency and duty cycle set by the PWM_Freq/PWM_Duty constants above; unlike the Microchip PIC version, this command only ever controls the OC0B channel.

See Also:

  • PWMOff — the counterpart command that disables the OC0B PWM output
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