test44x_ca02.c

来自「430例程大全 端口操作 时钟模块FLL+操作 flash读写操作 看门」· C语言 代码 · 共 19 行

#include  "msp430x44x.h"

void main (void)
{
  WDTCTL = WDTPW + WDTHOLD;       // Stop WDT
  P5DIR |= BIT1;                  // P5.1 output
  CACTL1 = CARSEL + CAREF0 + CAON;   // 0.25 Vcc = -comp, on
  CACTL2 = P2CA0;                 // P1.6 = +comp

  while (1)                       // Test comparator_A output
  {
    if ((CAOUT & CACTL2) == CAOUT) P1OUT |= BIT0;   // if CAOUT set, set P5.1
    else P5OUT &= ~BIT1;          // else reset
  }
}