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標題:
430單片機鍵盤驅動anjian.c
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作者:
das
時間:
2015-4-18 03:30
標題:
430單片機鍵盤驅動anjian.c
#include "msp430f149.h"
#define uchar unsigned char
#define uint unsigned int
uchar a=0;
uint da=0x0666;
void inint_timer(void)
{
CCTL0 = CCIE; // CCR0 interrupt enabled
CCR0 = 50000;
TACTL = TASSEL_2 + MC_2; // SMCLK, contmode
}
void key_inint(void)
{ P1DIR=0X38;
P1IE=0X03;
P1IES=0X03;
P1IFG=0X00;
}
void inint()
{WDTCTL=WDTPW+WDTHOLD;
BCSCTL2=SELS;
}
void daguo()
{P1OUT^=0X20;
}
void main()
{inint();
key_inint();
inint_timer();
_BIS_SR(LPM0_bits + GIE);
while(1);
}
#pragma vector=TIMERA0_VECTOR
__interrupt void TimerA0(void)
{P1OUT ^= 0X10; // Toggle P1.0
CCR0+= 50000; }
#pragma vector=PORT1_VECTOR
__interrupt void port1(void)
{switch(P1IFG)
{case 0x01:a--;P1OUT^=0X08;break;
case 0x02:a++;P1OUT^=0X10;break;
default:P1IFG=0X00;break;
}
P1IFG=0X00;
if(a==11)a=1;
if(a==0)a=10;
}
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