pwm_m.c

能够实现PWM输出功能

//
//      TMDX ALPHA RELEASE
//      Intended for product evaluation purposes
//
//###########################################################################
//
// FILE:	DSP28_Example.c
//
// TITLE:	DSP28 CPU_Timer example program.
//
//###########################################################################
//
//  Ver | dd mmm yyyy | Who  | Description of changes
// =====|=============|======|===============================================
//  0.55| 06 May 2002 | S.S. | EzDSP Alpha Release
//  0.57| 27 May 2002 | L.H. | No change
//###########################################################################

// Step 0.  Include required header files
         // DSP28_Device.h: device specific definitions #include statements for
         // all of the peripheral .h definition files.
         // DSP28_Example.h is specific for the given example.  

#include "DSP28_Device.h"

Uint16	 XPWM=0x00FF;  
Uint16 i; 

void main(void)
{
   /* asm(" DSP281x_CodeStartBranch"); */
  /*asm ( " DSP281x_CodeStartBranch.asm ") ;*/
	 
	/*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矢量表*/
	InitPieVectTable();	
 	/* XPWM=1000;                 //最大值2500 	*/
	/*初始化EV*/
	InitEv();

     
    	
	DINT;
	ERTM;


    GpioDataRegs.GPFCLEAR.bit.GPIOF10 = 1;
	GpioDataRegs.GPFCLEAR.bit.GPIOF12 = 1;
	GpioDataRegs.GPFCLEAR.bit.GPIOF13 = 1;

	while (1)
	{

	GpioDataRegs.GPFCLEAR.bit.GPIOF13 = 1;
	GpioDataRegs.GPFSET.bit.GPIOF10 = 1;
	for(i= 0; i< 65000; i++){}
	GpioDataRegs.GPFCLEAR.bit.GPIOF10 = 1;
	GpioDataRegs.GPFSET.bit.GPIOF12 = 1;
	for(i= 0; i< 65000; i++){}
	GpioDataRegs.GPFCLEAR.bit.GPIOF12 = 1;
	GpioDataRegs.GPFSET.bit.GPIOF13 = 1;
	for(i= 0; i< 65000; i++){}

	}
/*	for(;;)
	{
	}*/

} 	


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// No more.
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