dsp281x_gpio.c

基于矢量控制的永磁同步交流伺服电机控制系统 可以用的源程序

 //###########################################################################
//
// FILE:	DSP281x_Gpio.c
//
// TITLE:	DSP281x General Purpose I/O Initialization & Support Functions.
//
//###########################################################################
//
//  Ver | dd mmm yyyy | Who  | Description of changes
// =====|=============|======|===============================================
//  1.00| 11 Sep 2003 | L.H. | No change since previous version (v.58 Alpha)
//###########################################################################

#include "DSP281x_Device.h"     // DSP281x Headerfile Include File
#include "DSP281x_Examples.h"   // DSP281x Examples Include File

//---------------------------------------------------------------------------
// InitGpio: 
//---------------------------------------------------------------------------
// This function initializes the Gpio to a known state.
////////////////初始化IO口/////////////////////////////
void InitGpio(void)
{
     EALLOW;//允许修改
     GpioMuxRegs.GPAMUX.all	|= 0x033F;   //PWM使能端口 ，QEP1，2
	 GpioMuxRegs.GPADIR.all |= 0X003F;   //PWM输出口
	 GpioMuxRegs.GPADIR.all &=~ 0x0300;  //QEP1，2 为输入

	 GpioMuxRegs.GPADIR.all &=~ 0xE000;  //PA13.14.15.用作U V W 位置输入口
	 
     GpioMuxRegs.GPADIR.bit.GPIOA12=0;  	//输入按键测试用  
   //  GpioMuxRegs.GPADIR.bit.GPIOA10=1;    //测试用
     
     GpioMuxRegs.GPAQUAL.bit.QUALPRD = 0x05;  	//使能量化64分频150M/32
     
	 GpioMuxRegs.GPBQUAL.all = 0x0000;     //B口(无量化)
     GpioMuxRegs.GPBMUX.all &=~ 0xD0ff; 	//设置GpioB(0~7 12 14 15)为通用IO
     GpioMuxRegs.GPBDIR.all |= 0xD0ff;     //设为输出口
     
     
     GpioMuxRegs.GPEMUX.bit.XINT1_XBIO_GPIOE0=1;  //GPE0用作XINT1
     GpioMuxRegs.GPEQUAL.bit.QUALPRD = 0x07;     //e口150M/128量化

	 GpioMuxRegs.GPFMUX.bit.SCIRXDA_GPIOF5 = 1;   //使能串口接收
	 GpioMuxRegs.GPFMUX.bit.SCITXDA_GPIOF4 = 1;   //使能串口发射
	 GpioMuxRegs.GPFDIR.bit.GPIOF5 = 0;
	 GpioMuxRegs.GPFDIR.bit.GPIOF4 = 0;
	 

     EDIS;
}	
	
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// No more.
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