mcbsp_test.c

在ccs调试通过的,TI公司TMS320C2812 dsp的测试程序：gpio

#include "DSP28_Device.h"
unsigned int McBSP_VarRx[100];
unsigned int i,j;
unsigned int send_flag;

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矢量表*/
	InitPieVectTable();	
	
	/*初始化MCBSP外设*/
	InitMcbsp();
    
    for(i = 0; i < 100; i++)
    {
    	McBSP_VarRx[i] = 0;
    }

    // Enable global Interrupts and higher priority real-time debug events:
	
	EINT;   // Enable Global interrupt INTM
	ERTM;	// Enable Global realtime interrupt DBGM
	i = 0;
	j = 0;
	send_flag = 0;

// Step 6. IDLE loop. Just sit and loop forever (optional):	
	for(;;)
	{
		if((Mcbsp_TxRdy() == 1) && (send_flag == 0))
		{
			McbspRegs.DXR1.all = 0x5555+i;
//			McbspRegs.DXR2.all = 0;
			i++;
			send_flag = 1;
			if(i == 100)
			{
				i = 0;
			}
		}
		
		if(Mcbsp_RxRdy() == 1)
		{
			McBSP_VarRx[j] = McbspRegs.DRR1.all;
//			send_flag = McbspRegs.DRR2.all;
			j++;
			send_flag = 0;
			if(j == 100)
			{
				j = 0;
			}
		}	
	}

}