//PWM1    PWMPERDL1=0xb3;    PWMPERDH1= 0x00;        PWMCCNTL1=0x6B;    PWMCCNTH1= 0;    PWMDBDY1=0x2B;     //死区延时计时器    //PWM0    PWMPERDL0=pwm_per_L ;    PWMPERDH0=pwm_per_H ;    PWMCCNTL0=0x6B ;         PWMCCNTH0=0x00 ;         PWMDBDY0=0x2B;    //死区延时计时器