按键为何无法用？？？

psufhvka · 发表于 2015-2-23 22:12:20

#include "led.h"
#include "delay.h"
#include "sys.h"
#include "key.h"
//ALIENTEK Mini STM32??·?°?·????ú??2
//°??ü???????é
//?????§????www.openedv.com
//?????????í??×?????????????
int main(void)
{
u8 t=0;
delay_init();     //???±??????????
LED_Init();    //????????LED??????????????
KEY_Init();          //????????°??ü??????????????
LED0=1;     //????LED
LED1=0;     //????LED
while(1)
{
  t=KEY_Scan(0);  //?????ü??
  switch(t)
  {
   case KEY0_PRES:
    LED0=!LED0;
    break;
   case KEY1_PRES:
    LED1=!LED1;
    break;
   case WKUP_PRES:
    LED0=!LED0;
    LED1=!LED1;
    break;
   default:
    delay_ms(10);
  }
}
}

中的按键为何无法用？？？

while(1)
{
  t=KEY_Scan(0);  //?????ü??
  switch(t)
  {
   case KEY0_PRES:
    LED0=!LED0;
    break;
   case KEY1_PRES:
    LED1=!LED1;
    break;
   case WKUP_PRES:
    LED0=!LED0;
    LED1=!LED1;
    break;
   default:
    delay_ms(10);
  }
}