cputimer0.c

来自「DSP2812资料,包括原理图,测试程序,使用说明,jjzhang166@163」· C语言 代码 · 共 82 行

#include "DSP28_Device.h"
#include "ext_inf.h"
unsigned int LedCount;
const	Uint16	LedCode[]={0x7F,0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE,0xFF};

interrupt void ISRTimer0(void);
void   SendData(Uint16	data);
	 	
void main(void)
{

	/*初始化系统*/
	InitSysCtrl();

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

	/*初始化PIE*/
	InitPieCtrl();

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

	EALLOW;	
	PieVectTable.TINT0 = &ISRTimer0;
	EDIS;   
    
	/*设置CPU*/
	ConfigCpuTimer(&CpuTimer0, 10, 1000000);	
 	StartCpuTimer0();

    /*开中断*/
	IER |= M_INT1;
	PieCtrl.PIEIER1.bit.INTx7=1;
	

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

	*LedReg = 0xFF;    // 关 LED
	*Led8Lock = 0xB7;  // 灭数码管
	SendData(0xFF);
	for(;;);

} 	

interrupt void ISRTimer0(void)
{
	PieCtrl.PIEACK.bit.ACK7=1;
	*LedReg = LedCode[LedCount];
	LedCount++;
	if (LedCount>=8)	LedCount=0;
}

void	SendData(Uint16 data)
{
	Uint16	i,Temp;
	Temp = 0x80;
	for	(i=0;i<8;i++)
		{
			if ((data & Temp)==0)	ClrData;
			else	SetData;
			Temp >>= 1;
			ClrClk;
			SetClk;
		}
	*Led8Lock = 0xB7;
	*Led8Lock = 0xBF;
	SetData;		
}
//===========================================================================
// No more.
//===========================================================================