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78 lines
1.6 KiB
78 lines
1.6 KiB
#include <msp430fr6989.h>
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char lec=0;
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int cont1=0,cont2=0,cont3=0,cont4=0;
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void main(void)
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{
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WDTCTL = WDTPW | WDTHOLD; // stop watchdog timer
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PM5CTL0 = 0x0000;// DESACTIVAR EL MODO DE ALTA IMPEDANCIA
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/*Confg. de perifericos */
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P1SEL0 = 0x00;
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P1SEL1 = 0x00; //SELECCIONAMOS FUNCION COMO I/O DIGITAL
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P1DIR = 0x01; //P1.0-> SALIDA P1.1-P1.7-> ENTRADAS
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P1REN = 0xFE;
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P1OUT = 0xFE;
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P1IE = 0x7E;
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P1IES = 0x00;
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P1IFG = 0x00;
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P9SEL0 = 0x00;
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P9SEL1 = 0x00; //SELECCIONAMOS FUNCION COMO I/O DIGITAL
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P9DIR = 0x80; //P9.7-> SALIDA P9.0-P9.6->ENTRADAS
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P9REN = 0x7f;
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P9OUT = 0x00;
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__enable_interrupt(); //también se puede usar _enable_interrupts()
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for(;;)
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{
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}//loop
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}//main
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//**************Interruptions**************
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#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
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#pragma vector=PORT1_VECTOR
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__interrupt void inter_puerto1(void)
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#elif defined(__GNUC__)
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void __attribute__ ((interrupt(PORT1_VECTOR))) PORT1_ISR (void)
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#else
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#error Compiler not supported!
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#endif
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{
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lec=P1IFG;
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lec &= BIT3;
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__delay_cycles(250);
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if( P1IFG == BIT3){
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cont1++;
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P1OUT ^= 0x01;
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}
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lec &= BIT4;
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__delay_cycles(250);
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if( P1IFG == BIT4){
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cont2++;
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P9OUT ^= 0x80;
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}
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lec &= BIT5;
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__delay_cycles(250);
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if( P1IFG == BIT5){
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cont3++;
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P1OUT ^= 0x01;
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}
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lec &= BIT6;
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__delay_cycles(250);
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if( P1IFG == BIT6){
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cont4++;
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P9OUT ^= 0x80;
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}
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P1IFG=0x00;
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}
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