dsp280x_piectrl.c

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// TI File $Revision: /main/1 $
// Checkin $Date: December 1, 2004   11:12:03 $
//###########################################################################
//
// FILE:	DSP280x_PieCtrl.c
//
// TITLE:	DSP280x Device PIE Control Register Initialization Functions.
//
//###########################################################################
// $TI Release: DSP280x V1.10 $
// $Release Date: April 18, 2005 $
//###########################################################################

#include "DSP280x_Device.h"     // DSP280x Headerfile Include File
#include "DSP280x_Examples.h"   // DSP280x Examples Include File

//---------------------------------------------------------------------------
// InitPieCtrl: 
//---------------------------------------------------------------------------
// This function initializes the PIE control registers to a known state.
//
void InitPieCtrl(void)
{
    // Disable Interrupts at the CPU level:
    DINT;

    // Disable the PIE
    PieCtrlRegs.PIECTRL.bit.ENPIE = 0;

	// Clear all PIEIER registers:
	PieCtrlRegs.PIEIER1.all = 0;
	PieCtrlRegs.PIEIER2.all = 0;
	PieCtrlRegs.PIEIER3.all = 0;	
	PieCtrlRegs.PIEIER4.all = 0;
	PieCtrlRegs.PIEIER5.all = 0;
	PieCtrlRegs.PIEIER6.all = 0;
	PieCtrlRegs.PIEIER7.all = 0;
	PieCtrlRegs.PIEIER8.all = 0;
	PieCtrlRegs.PIEIER9.all = 0;
	PieCtrlRegs.PIEIER10.all = 0;
	PieCtrlRegs.PIEIER11.all = 0;
	PieCtrlRegs.PIEIER12.all = 0;

	// Clear all PIEIFR registers:
	PieCtrlRegs.PIEIFR1.all = 0;
	PieCtrlRegs.PIEIFR2.all = 0;
	PieCtrlRegs.PIEIFR3.all = 0;	
	PieCtrlRegs.PIEIFR4.all = 0;
	PieCtrlRegs.PIEIFR5.all = 0;
	PieCtrlRegs.PIEIFR6.all = 0;
	PieCtrlRegs.PIEIFR7.all = 0;
	PieCtrlRegs.PIEIFR8.all = 0;
	PieCtrlRegs.PIEIFR9.all = 0;
	PieCtrlRegs.PIEIFR10.all = 0;
	PieCtrlRegs.PIEIFR11.all = 0;
	PieCtrlRegs.PIEIFR12.all = 0;


}	

//---------------------------------------------------------------------------
// EnableInterrupts: 
//---------------------------------------------------------------------------
// This function enables the PIE module and CPU interrupts
//
void EnableInterrupts()
{

    // Enable the PIE
  	PieCtrlRegs.PIECTRL.bit.ENPIE = 1;
    		
	// Enables PIE to drive a pulse into the CPU 
	PieCtrlRegs.PIEACK.all = 0x0005;  //int1 and int3

	// Enable CPU INT1 which is connected to CPU-Timer 0:
   	IER |= M_INT1;
	// Enable INT3 which is connected to epwm
	IER |= M_INT3;  


// Enable TINT0 in the PIE: Group 1 interrupt 7
   	PieCtrlRegs.PIEIER1.bit.INTx7 = 1;
//enable epwm1 interrupt: int3.1   
	PieCtrlRegs.PIEIER3.bit.INTx1=1;   //启动epwm1中断，在int3.1   //by yb
	

	
	// Enable Interrupts at the CPU level 
    	EINT;
    	ERTM;




 
	
}















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