evmdm642_led.c

来自「DM642算法例程 阈值选取 基于DSPBIOS」· C语言 代码 · 共 53 行

/*
 *  Copyright 2003 by Spectrum Digital Incorporated.
 *  All rights reserved. Property of Spectrum Digital Incorporated.
 */
 
/*
 *  ======== evmdm642_led.c ========
 *  LED module for the EVMDM642
 */
 
#include <csl.h>

#include "evmdm642.h"
#include "evmdm642_led.h"

static Int16 ledstate;
Uint8 gpio4=0;
GPIO_Handle EVMDM642_GPIO_hGPIO;


/*************************************************************************/
void EVMDM642_GPIO_ledblink()
{
	gpio4=~gpio4;
	GPIO_pinWrite(EVMDM642_GPIO_hGPIO,GPIO_PIN3,gpio4);
}


/*************************************************************************/
void EVMDM642_HD_SEL(unsigned char hd)
{
    if(hd)
	GPIO_pinWrite(EVMDM642_GPIO_hGPIO,GPIO_PIN2,1);
	else
	GPIO_pinWrite(EVMDM642_GPIO_hGPIO,GPIO_PIN2,0);
}
/*************************************************************************/	
void EVMDM642_GPIO_init()
{
	
	GPIO_Config myGpioConfig;
	
	EVMDM642_GPIO_hGPIO = GPIO_open(GPIO_DEV0,GPIO_OPEN_RESET);
	myGpioConfig.gpgc=0x00000000;  //
	myGpioConfig.gpen=0x0000001E;  //GPxEN = 1 GP[x] pin is enabled
	myGpioConfig.gpdir=0x000001E;  //GPxDIR = 0 GP[x] pin is an input  
								   //GPxDIR = 1 GP[x] pin is an output
	myGpioConfig.gpval=0x0000000;
	myGpioConfig.gphm=0x00000000;
	myGpioConfig.gplm=0x00000000;
	myGpioConfig.gppol=0x00000000;	
	GPIO_config(EVMDM642_GPIO_hGPIO,&myGpioConfig);
}