dec643_gpio.c

这是dsp sdram存取实验

/************************************************************
  Copyright (C), 2007 by SEED Electronic Technology LTD.
  FileName: DEC643_GPIO.c
  Author:  Ya.X      Version : V1.0         Date:2007-09-20
  Description:   演示GPIO的使用：向pin 13交替写0/1，使D2闪烁
*************************************************************/

#include <csl.h>
#include <csl_gpio.h>
#include "DEC643.h"
#include <stdio.h>
void main()
{
	static GPIO_Handle hGpio;

	/* Initialize CSL,must when using CSL. */
	CSL_init();
	
	/* Initialize DEC643 board. */
	DEC643_init();		

    /* Set GPIO. */
    hGpio = GPIO_open(GPIO_DEV0, GPIO_OPEN_RESET);
    GPIO_reset(hGpio);
    GPIO_pinEnable(hGpio, GPIO_PIN14);
    GPIO_pinDirection(hGpio, GPIO_PIN14, GPIO_OUTPUT);

    /* Blinks led D2. */
    while(1)
	{
		GPIO_pinWrite(hGpio, GPIO_PIN14,0);
		DEC643_waitusec(500);
		printf("low elc num io 14");
		GPIO_pinWrite(hGpio, GPIO_PIN14,1);
		DEC643_waitusec(500000);	
	}
}