STC头文件引用就可以了,测过有效
#define PWM0_NORMAL() PCA_PWM0 &= ~3 //PWM0正常输出(默认)
#define PWM0_OUT_0() PCA_PWM0 |= 3 //PWM0一直输出0
#define PWM0_OUT_1() PCA_PWM0 &= ~3, CCAP0H = 0; //PWM0一直输出1
#define PWM1_NORMAL() PCA_PWM1 &= ~3 //PWM1正常输出(默认)
#define PWM1_OUT_0() PCA_PWM1 |= 3 //PWM1一直输出0
#define PWM1_OUT_1() PCA_PWM1 &= ~3, CCAP1H = 0; //PWM1一直输出1
#define PWM2_NORMAL() PCA_PWM2 &= ~3 //PWM2正常输出(默认)
#define PWM2_OUT_0() PCA_PWM2 |= 3 //PWM2一直输出0
#define PWM2_OUT_1() PCA_PWM2 &= ~3, CCAP2H = 0; //PWM2一直输出1 |