中断系统程序设计

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#include"DSP2833x_Device.h"

#include"DSP2833x_Examples.h"

#define LED1_ON GpioDataRegs.GPASET.bit.GPIO0=1

#define LED1_OFF GpioDataRegs.GPACLEAR.bit.GPIO0=1 #define LED2_ON GpioDataRegs.GPASET.bit.GPIO1=1

#define LED2_OFF GpioDataRegs.GPACLEAR.bit.GPIO1=1 #define LED3_ON GpioDataRegs.GPASET.bit.GPIO2=1

#define LED3_OFF GpioDataRegs.GPACLEAR.bit.GPIO2=1 #define LED4_ON GpioDataRegs.GPASET.bit.GPIO3=1

#define LED4_OFF GpioDataRegs.GPACLEAR.bit.GPIO3=1 #define LED5_ON GpioDataRegs.GPASET.bit.GPIO4=1

#define LED5_OFF GpioDataRegs.GPACLEAR.bit.GPIO4=1 #define LED6_ON GpioDataRegs.GPASET.bit.GPIO5=1

#define LED6_OFF GpioDataRegs.GPACLEAR.bit.GPIO5=1 #define LED7_ON GpioDataRegs.GPBSET.bit.GPIO51=1 #define LED7_OFF GpioDataRegs.GPBCLEAR.bit.GPIO51=1 #define LED8_ON GpioDataRegs.GPBSET.bit.GPIO50=1 #define LED8_OFF GpioDataRegs.GPBCLEAR.bit.GPIO50=1 interrupt void ISRExint3(void);

interrupt void ISRExint4(void);

interrupt void ISRExint5(void);

interrupt void ISRExint6(void);

void configtestled(void);

Uint16sign ;

void main(void)

{ InitSysCtrl();

InitXintf16Gpio();

DINT;

InitPieCtrl();

IER = 0x0000;

IFR = 0x0000;

InitPieVectTable();

EALLOW;

PieVectTable.XINT3 = &ISRExint3;

PieVectTable.XINT4 = &ISRExint4;

PieVectTable.XINT5 = &ISRExint5;

PieVectTable.XINT6 = &ISRExint6;

EDIS;

PieCtrlRegs.PIECTRL.bit.ENPIE = 1;

PieCtrlRegs.PIEIER12.bit.INTx1= 1;

PieCtrlRegs.PIEIER12.bit.INTx2= 1;

PieCtrlRegs.PIEIER12.bit.INTx3= 1;

PieCtrlRegs.PIEIER12.bit.INTx4= 1;

IER |= M_INT12;

EINT;

ERTM;

configtestled();

sign = 0;

while(1)

{

if(sign==0)

{ LED1_OFF;

LED2_OFF;

LED3_OFF;

LED4_OFF;

LED5_OFF;

LED6_OFF;

LED7_OFF;

LED8_OFF;

DELAY_US(50000);

LED1_ON;

DELAY_US(50000);

LED2_ON;

DELAY_US(50000);

LED3_ON;

DELAY_US(50000);

LED4_ON;

DELAY_US(50000);

LED5_ON;

DELAY_US(50000);

LED6_ON;

DELAY_US(50000);

LED7_ON;

DELAY_US(50000);

LED8_ON;

DELAY_US(50000); }

if(sign==3)

{

LED1_OFF;

LED2_OFF;

LED3_OFF;

LED4_OFF;

LED5_OFF;

LED6_OFF;

LED7_OFF;

LED8_OFF;

DELAY_US(50000);

LED1_ON;

LED2_ON;

DELAY_US(50000);

LED3_ON;

LED4_ON;

DELAY_US(50000);

LED5_ON;

LED6_ON;

DELAY_US(50000);

LED7_ON;

LED8_ON;

DELAY_US(50000); } if(sign==4)

{ LED1_ON;

LED2_ON;

LED3_ON;

LED4_ON;

LED5_ON;

LED6_ON;

LED7_ON;

LED8_ON;

DELAY_US(50000);

LED1_OFF;