PWM.zip_msp430g2553 pwm _msp430g2553pwm

#include <msp430g2553.h> #include"clock.h" void main( void ) { // Stop watchdog timer to prevent time out reset WDTCTL = WDTPW + WDTHOLD; Init_Clk(); TACTL = TASSEL_2 + MC_1;//ACLK , 增计数 TACCR0 = 500; TACCTL1 = OUTMOD_7;//PWM复位/置位 TACCR1 = 125; // CCR2=256; P1SEL = 0X06; //0000 0110 P1.1对应 CCR0的TA0； P1DIR =BIT1+BIT2; // P1.2对应 CCR1的TA1 // P1OUT=BIT3; P1REN |= BIT3;//这个必须要加上 !!上拉电阻 // P1DIR |= BIT6; while(1) { if(!(P1IN&BIT3)) { TACCR1=250; } } }