ch55x/src/pwm/main.c

// Enable both PWM peripherals, and connect them to their GPIO outputs

#include <ch554.h>
#include <debug.h>
#include <pwm.h>

void main(){
    CfgFsys();
    SetPWMClk(4);
    ForceClearPWMFIFO();
    CancelClearPWMFIFO();

    // Uncomment these lines to use the alternate pin mapping
    //PWM1PinAlter();
    //PWM2PinAlter();

    PWM1OutEnable();
    //PWM2OutEnable();

    PWM1OutPolarHighAct();
    //PWM2OutPolarLowAct();

    SetPWM1Dat(0x10);
    //SetPWM2Dat(0x40);

    while(1){
        int i = 0;
        for (i = 0 ; i < 255; i++){
            SetPWM1Dat(i);
            //SetPWM2Dat(i);
            mDelaymS(1);
        }
        for (i = 255 ; i > 0; i--){
            SetPWM1Dat(i);
            //SetPWM2Dat(i);
            mDelaymS(1);
        }
        mDelaymS(1);
    }
}