程式碼改變TACCR1輸出電壓

[蘇俊丸]

版主我想請問

#include  <msp430g2553.h>

void main(void)

{

 WDTCTL = WDTPW + WDTHOLD;              // Stop WDT

 P1DIR |= BIT2+BIT3;                    // P1.2 0x0C and P1.3 output

 P1SEL |= BIT2+BIT3;                    // P1.2 and P1.3 TA1/2 options

 CCR0 = 512-1;                          // PWM Period

 CCTL1 = OUTMOD_7;                      // CCR1 reset/set

 CCR1 = 384;                            // CCR1 PWM duty cycle 75%

 TACTL = TASSEL_2 + MC_1;               // SMCLK, up mode

 _BIS_SR(CPUOFF);                       // Enter LPM0

}

我使用這支改變電壓的程式，為什麼只有P1.2和P1.6能改變?

[喜同學]

你是不是講錯了呢?

應該是P1.2和P1.3吧

不過還必須看該角位是不是Timer的輸出角位