www.pudn.com > ads8364.rar > ADS8364_Gpio.c

// 
//      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. 
//===========================================================================