In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:

Assuming you only need 8-bits (256 levels) of PWM you would setup the interrupt with a rate of 8192 (32 * 256).

PwmPin  PIN RA.0 OUTPUT ' Change to whatever SX pin you want but make sure you have OUTPUT

pwmCnt VAR BYTE
pwmValue VAR BYTE ' Set this variable to whatever PWM duty cycle you want

INTERRUPT 8192
  INC pwmCnt
  IF pwmCnt > pwmValue THEN
    pwmPin = 0
  ELSE
    pwmPin = 1
  ENDIF
RETURNINT


Bean.

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