MSP430 P1口中断问题

发表于 2010-6-22 09:05

P1.7是中断源控制P1.4灯下面的程序对吗上升沿触发要下拉电阻吗
#include  <msp430x20x3.h>
void main(void)
{
  WDTCTL = WDTPW + WDTHOLD;
  P1DIR |= 0x10;
  P1IE |= 0x80;
  P1IES |= 0x00;
  P1REN |= 0x80;
  P1OUT = 0x10;
  P1IFG &= ~0x80;
  _BIS_SR(LPM4_bits + GIE);
}
// Port 1 interrupt service routine
#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void)
{
  P1OUT ^= 0x10;
  P1IFG &= ~0x80;
}