ads8364_gpio.c

ADS8364是美国德州仪器公司(TI)的一款六通道、16位并行输出、同步采样的模数转换器。该芯片提供了一个灵活的高速并行接口

//
//      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
//  0.58| 29 Jun 2002 | L.H. | No change
//###########################################################################

#include "DSP28_Device.h"

//---------------------------------------------------------------------------
// InitGpio: 
//---------------------------------------------------------------------------
// This function initializes the Gpio to a known state.
//
void InitGpio(void)
{
    EALLOW;
	//Configure Port A for PWM clock and GPIO
    GpioMuxRegs.GPAMUX.all=0x0003;
    GpioMuxRegs.GPADIR.all=0xFFFF;

	//Configure Port E for External Interrupts XINT1, XINT2
    GpioMuxRegs.GPEMUX.all=0x0003;
    GpioMuxRegs.GPEDIR.all=0x0003;
	GpioMuxRegs.GPEQUAL.all=0x0000;

	//Configure Port F for GPIO
    GpioMuxRegs.GPFMUX.all=0x0000;
    GpioMuxRegs.GPFDIR.all=0x0005;

    EDIS;
}           

void ResetADS8364(void)
{
    GpioDataRegs.GPFCLEAR.all = 0x0001;  // Test Clear    
    asm (" RPT #200 || NOP");
    GpioDataRegs.GPFSET.all = 0x0001;    // Test Set
}	


void ToggleHOLDx(int channel)
{
    GpioDataRegs.GPACLEAR.all = channel;  // Test Clear    
    asm (" RPT #25 || NOP");
    GpioDataRegs.GPASET.all = channel;    // Test Set
}	
	
//===========================================================================
// No more.
//===========================================================================