switch.c

来自「ADS1240转换程序」· C语言 代码 · 共 19 行

#include "hpa449lib.h"
#include "sblcd_hpa449_sblcd.h"

void WaitForSwitch2()
{
   // turn down arrow on
   LCDM2 |= 0x08;
   // wait for switch 2 to go low
   while (P1IN & SWITCH_2_BIT)
      ;
   sblcd_arrowsoff();
   // debounce
   Pause(200);
   while (!(P1IN & SWITCH_2_BIT))
      ;
   // debounce
   Pause(200);
}