ramtest.c

TMS320F2812读写外部RAM的C语言例程

#include "DSP28_Device.h"
#include "ext_inf.h"
unsigned int Led_Flag;

void	SendData(Uint16	 data);

void main(void)
{

	/*初始化系统*/
	InitSysCtrl();

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

	/*初始化PIE*/
	InitPieCtrl();

	/*初始化PIE中断矢量表*/
	InitPieVectTable();	
	
	/*初始化外设*/
    InitPeripherals();
    
	*LedReg = 0xFF;
	*Led8Lock = 0xB7;
	SendData(0xFF);
	InitExRam(0);
	RamRead(0x4000);
	InitExRam1(0x0);	
	for(;;);

} 	

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.
//===========================================================================