spi_test.c

DSP2812与AD通过SPI通讯将采得的数据通过LED显示出来。

#include "DSP28_Device.h"
//Relative to spi_receive,not use rightnow
unsigned int Spi_VarRx[100];
unsigned int i,j;
//-------------------------

extern unsigned int Int_Flag;

void main(void)
{
    unsigned int countnum,shownum;
    countnum = 0;
	/*初始化系统*/
	InitSysCtrl();
	/* 关中断 */
	DINT;
	IER = 0x0000;
	IFR = 0x0000;
	/* 初始化PIE控制寄存器 */
	InitPieCtrl();
	/* 初始化PIE参数表 */
	InitPieVectTable();	
	/* 初始化外设寄存器 */
	InitPeripherals();
	
    #if	Spi_Int
	EALLOW;	// This is needed to write to EALLOW protected registers
	PieVectTable.SPITXINTA = &SPITXINTA_ISR;
	PieVectTable.SPIRXINTA = &SPIRXINTA_ISR;
	EDIS;   // This is needed to disable write to EALLOW protected registers
	/* 设置IER寄存器 */
	IER |= M_INT6;
	#endif
	
	/* 开中断 */
	EINT;   // Enable Global interrupt INTM
	ERTM;	// Enable Global realtime interrupt DBGM
	Intensity(11);
	ScanLimit(7);
	DisplayTest();
	ShutDown(NO); 
	DecodeMode(0x0ff);
	while(1)
	{
	 if((Spi_TxReady() == 1))
	   {
	 	shownum = BIN2BCD(countnum);
	 	ShowBCD(shownum);
	 	Delay(400000);
	 	countnum++;
	 	if(countnum==10000)
	 	countnum = 0;
	   }
	}
}
//===========================================================================
// No more.
//===========================================================================