LaunchPad之按键LED闪灯爽歪歪

1万 · 2012-6-12 17:50

本帖最后由 gaoyang9992006 于 2012-6-12 18:00 编辑

//默认一起闪烁，按下按键后交替闪烁，再按下又一起，……

#include <msp430g2452.h>
#define    BUTTON             BIT3
#define    LED_RED             BIT0
#define    LED_GREEN          BIT6
#define    LED_DIR             P1DIR
#define    BUTTON_DIR          P1DIR
#define    BUTTON_OUT          P1OUT
#define    LED_OUT             P1OUT
#define    BUTTON_REN          P1REN
#define    BUTTON_ON          (P1IN&BIT3)
#define    BUTTON_OFF          !(P1IN&BIT3)
#define    LED_RED_ON()          P1OUT|=BIT0
#define    LED_RED_OFF()          P1OUT&=~BIT0
#define    LED_GREEN_ON()       P1OUT|=BIT6
#define    LED_GREEN_OFF()       P1OUT&=~BIT6
volatile unsigned char i=0,flag=0;
void main(void)
{
WDTCTL = WDTPW + WDTHOLD;
BUTTON_DIR &= ~BUTTON;
LED_DIR |= LED_RED+LED_GREEN;
BUTTON_REN |= BUTTON;
   BUTTON_OUT  = BUTTON;
while(1)
{
   /*通过按键改变选择标志位*/
   if(BUTTON_OFF)
   {
      flag=!flag;
         while(BUTTON_OFF);
   }
   if(flag)
         {
   LED_RED_ON();
   i=10;
   while(i--)
   _delay_cycles(50000);
         LED_RED_OFF();
   LED_GREEN_ON();
   i=10;
   while(i--)
         _delay_cycles(50000);
         LED_GREEN_OFF();
         }
      else
         {
            LED_OUT |= LED_RED+LED_GREEN;
            i=10;
            while(i--)
            _delay_cycles(50000);
            LED_OUT ^= (LED_RED+LED_GREEN);
            i=10;
            while(i--)
            _delay_cycles(50000);
         }
}
}

1万 · 2012-6-12 19:18

/**************变化一下，O(∩_∩)O哈哈~*******/
#include <msp430g2452.h>
#define    BUTTON             BIT3
#define    LED_RED             BIT0
#define    LED_GREEN          BIT6
#define    LED_DIR             P1DIR
#define    BUTTON_DIR          P1DIR
#define    BUTTON_OUT          P1OUT
#define    LED_OUT             P1OUT

#define    BUTTON_REN          P1REN
#define    BUTTON_ON          (P1IN&BIT3)
#define    BUTTON_OFF          !(P1IN&BIT3)

#define    BIT_SET(x , y)          x |= (y)
#define    BIT_CLR(x , y)          x &=~(y)
volatile unsigned char i=0,flag=1;
void main(void)
{
   WDTCTL = WDTPW + WDTHOLD;

   BIT_CLR(BUTTON_DIR , BUTTON);
   BIT_SET(LED_DIR , LED_RED+LED_GREEN);
   BIT_SET(BUTTON_REN , BUTTON);
   BIT_SET(BUTTON_OUT , BUTTON);

while(1)
{
   /*通过按键改变选择标志位*/
if(BUTTON_OFF)
   {
   flag=!flag;
         while(BUTTON_OFF);
   }
/*****************************************************/
if(flag)
         {
   BIT_SET(LED_OUT , LED_RED);
   i=10;
   while(i--)
   _delay_cycles(50000);
         BIT_CLR(LED_OUT , LED_RED);
/*****************************************************/
   BIT_SET(LED_OUT , LED_GREEN);
   i=10;
   while(i--)
         _delay_cycles(50000);
         BIT_CLR(LED_OUT , LED_GREEN);
         }
/*****************************************************/
      else
         {
               BIT_SET(LED_OUT ,LED_RED+LED_GREEN);
               i=10;
               while(i--)
               _delay_cycles(50000);
/*****************************************************/
               BIT_CLR(LED_OUT , LED_RED+LED_GREEN);
               i=10;
            while(i--)
            _delay_cycles(50000);

         }
}

}

LaunchPad之按键LED闪灯爽歪歪

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