cputimer2.c

F2812实现电机控制源程序.rar

///2006-06-16 调内部定时器2通过，每次定时时间到，二极管交替闪
#include "DSP28_Device.h"
#include "ext_inf.h"
unsigned int Led_Flag;

interrupt void ISRTimer2(void);


void main(void)
{

	/*初始化系统*/
	InitSysCtrl();

	/*关中断*/
	DINT;
	IER = 0x0000;
	IFR = 0x0000;
	Led_Flag = 0;

	/*初始化PIE*/
	InitPieCtrl();

	/*初始化PIE中断矢量表*/
	InitPieVectTable();	
	
	/*初始化外设*/
    InitPeripherals();
    

	EALLOW;	
	PieVectTable.TINT2 = &ISRTimer2;
	EDIS;   
    
	/*设置CPU*/
	ConfigCpuTimer(&CpuTimer2, 50, 1000000);	
 	StartCpuTimer2();

    /*开中断*/
	IER |= M_INT14;  ///内部定时器在PIE分组中位于14

	EINT;   // Enable Global interrupt INTM
	ERTM;	// Enable Global realtime interrupt DBGM

	*LedReg = 0x00;
	for(;;);

} 	

interrupt void ISRTimer2(void)
{
	CpuTimer2.InterruptCount++;
	if(Led_Flag == 1)
	{
		*LedReg = 0xAA;
		Led_Flag = 0;
	}
	else
	{
		*LedReg = 0x55;
		Led_Flag = 1;
	}
}


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// No more.
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