dsp28_gpio.c

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

//
//      TMDX ALPHA RELEASE
//      Intended for product evaluation purposes
//
//###########################################################################
//
// FILE:	DSP28_Gpio.c
//
// TITLE:	DSP28 General Purpose I/O Initialization & Support Functions.
//
//###########################################################################
//
//  Ver | dd mmm yyyy | Who  | Description of changes
// =====|=============|======|===============================================
//  0.55| 06 May 2002 | L.H. | EzDSP Alpha Release
//  0.56| 20 May 2002 | L.H. | No change
//  0.57| 27 May 2002 | L.H. | No change
//###########################################################################

#include "DSP28_Device.h"

	
//---------------------------------------------------------------------------
// InitGpio: 
//---------------------------------------------------------------------------
// This function initializes the Gpio to a known state.
//
void InitGpio(void)
{

// Set GPIO F port pins,bit0 as ouput,bit1 as input,bit2 as output, bit3 as ouput
// Input Qualifier =0, none
     EALLOW;
  	 GpioMuxRegs.GPFMUX.bit.MCLKXA_GPIOF8 = 0;
  	 GpioMuxRegs.GPFMUX.bit.MCLKRA_GPIOF9 = 0;
  	 GpioMuxRegs.GPFMUX.bit.MFSXA_GPIOF10 = 0;
  	 GpioMuxRegs.GPFMUX.bit.MFSRA_GPIOF11 = 0;
  	 GpioMuxRegs.GPFMUX.bit.MDXA_GPIOF12 = 0;
  	 GpioMuxRegs.GPFMUX.bit.MDRA_GPIOF13 =0;
  	 GpioMuxRegs.GPFDIR.bit.GPIOF8 = 1;
  	 GpioMuxRegs.GPFDIR.bit.GPIOF9 = 0;
  	 GpioMuxRegs.GPFDIR.bit.GPIOF10= 1;
  	 GpioMuxRegs.GPFDIR.bit.GPIOF11= 0;
  	 GpioMuxRegs.GPFDIR.bit.GPIOF12= 1;
  	 GpioMuxRegs.GPFDIR.bit.GPIOF13= 0;  	  
     EDIS;

}	
	
//===========================================================================
// No more.
//===========================================================================