main.c

SmartARM2400系列开发板全套资料

/****************************************Copyright (c)****************************************************
**                         Guangzhou ZHIYUAN electronics Co.,LTD.                               
**                                     
**                               http://www.embedtools.com
**
**--------------File Info---------------------------------------------------------------------------------
** File name:			main.c
** Last modified Date:  2004-09-16
** Last Version:		1.0
** Descriptions:		The main() function example template
**
**--------------------------------------------------------------------------------------------------------
** Created by:			Chenmingji
** Created date:		2004-09-16
** Version:				1.0
** Descriptions:		The original version
**
**--------------------------------------------------------------------------------------------------------
** Modified by:			wankai
** Modified date:		2008-07-07
** Version:
** Descriptions:		对程序与注释格式进行修改
**
*********************************************************************************************************/
#include "main.h"
    
#define KEY1  (1<<12)
#define LED9  (1<<25)
/*********************************************************************************************************
** 函数名称:    main
** 功能描述:    GPIO输入输出测试       
** 调试说明:    把KEY1，LED9短接到P0.12,P3.25
*********************************************************************************************************/
int main (void)
{
    uint32  uiState=1;      												/*定义中间变量				*/
	PINSEL0 &= ~(0x03<<24);													/*配置P0口为GPIO			*/
	PINSEL7 &= ~(0x03<<18);													/*配置P3口为GPIO			*/
	FIO0DIR &= KEY1;														/*配置P0口为快速GPIO输入	*/
	FIO3DIR |= LED9;														/*配置P3口为快速GPIO输出	*/
	while(1) 
	{		
		uiState = (uint32)(IO0PIN&KEY1);									/*读取IO口状态				*/
		
		if (uiState) {
		    FIO3SET = LED9;				 									/*如果没有按键按下那LED灭	*/
		}
		else { 
		    FIO3CLR = LED9;					 								/*如果没有按键按下那LED亮	*/
		}
	}   
    return 0;                                   
}
/*********************************************************************************************************
  END FILE
*********************************************************************************************************/