leds.c

来自「应用DSP2812」· C语言 代码 · 共 50 行

#include "DSP281x_Device.h"     // DSP281x Headerfile Include File
#include "DSP281x_Examples.h"   // DSP281x Examples Include File
#include "f2812a.h"

#include "stdio.h"

#define LBDS (*((unsigned int *)0xc0000))
#define DIPS (*((unsigned int *)0xc0001))

interrupt void eva_timer1_isr(void);

void EVA_Timer1()
{
	EvaRegs.GPTCONA.all=0;
	EvaRegs.T1PR=0x0BEBB;
	EvaRegs.EVAIMRA.bit.T1PINT=1;
	EvaRegs.EVAIFRA.bit.T1PINT=1;
	EvaRegs.T1CNT=0x0000;
	EvaRegs.T1CON.all=0x1740;
}

void main(void)
{
	InitSysCtrl();
	EALLOW;
	SysCtrlRegs.HISPCP.all=0x0006;
	EDIS;
	DINT;
	IER=0x0000;
	IFR=0x0000;
	InitPieCtrl();
	InitPieVectTable();
	EVA_Timer1();
	EALLOW;
	PieVectTable.T1PINT=&eva_timer1_isr;
	EDIS;
	PieCtrlRegs.PIEIER2.all=M_INT4;
	IER|=M_INT2;
	EINT;
	for(;;){;}
}

interrupt void eva_timer1_isr(void)
{
	LED=SW;
	EvaRegs.EVAIMRA.bit.T1PINT=1;
	EvaRegs.EVAIFRA.bit.T1PINT=1;
	PieCtrlRegs.PIEACK.all=PIEACK_GROUP2;
}