/****************************************Copyright (c)****************************************************
**                            Guangzhou ZHIYUAN electronics Co.,LTD.
**
**                                 http://www.embedtools.com
**
**--------------File Info---------------------------------------------------------------------------------
** File name:           main.c
** Last modified Date:  2010-02-04
** Last Version:        V1.0
** Descriptions:        The main() function example template
**
**--------------------------------------------------------------------------------------------------------
** Created by:          Lanwuqiang
** Created date:        2010-02-05
** Version:             V1.0
** Descriptions:        添加用户应用程序
**
**--------------------------------------------------------------------------------------------------------
** Modified by:         ZhangNingbo
** Modified date:       2010-02-05
** Version:             V1.0
** Descriptions:        按键按下蜂鸣器鸣叫示例程序
**
**--------------------------------------------------------------------------------------------------------
** Modified by:        
** Modified date:      
** Version:            
** Descriptions:       
**
** Rechecked by:
*********************************************************************************************************/
#include "..\config.h"

/*********************************************************************************************************
  宏定义
*********************************************************************************************************/
#define BEEP        (1ul << 7)
#define BEEP_INIT()  GPIO2DIR  |=  BEEP                                 /*  蜂鸣器初始化                */
#define BEEPOFF()    GPIO2DATA |=  BEEP                                 /*  蜂鸣器关                    */
#define BEEPON()     GPIO2DATA &= ~BEEP                                 /*  蜂鸣器开                    */

#define KEY         (1ul << 0)                                          /*  按键为PIO3.0                */
/*********************************************************************************************************
** Function name:       myDelay
** Descriptions:        软件延时
** input parameters:    无
** output parameters:   无
** Returned value:      无
*********************************************************************************************************/
void myDelay (INT32U ulTime)
{
    INT32U i;
    
    i = 0;
    while (ulTime--) {
      for (i = 0; i < 5000; i++);
    }
}

/*********************************************************************************************************
** Function name:       main
** Descriptions:        当硬件基于EasyCortexM3-1300开发板时，需要将P2.7与BEEP短接，P3.0与KEY1短接，每按下
**                      一次按键蜂鸣器响一声。
**                      用户也可以根据要求自行设计底板连接。
** input parameters:    无
** output parameters:   无
** Returned value:      无
*********************************************************************************************************/
int main (void)
{
   targetInit();                                                        /*  初始化目标板，切勿删除      */
   pinInit();                                                           /*  引脚初始化                  */

   SYSAHBCLKCTRL |= (1ul << 6);                                         /*  使能GPIO模块时钟            */	
   BEEP_INIT();
   
   GPIO3DIR &= ~KEY;
   while (1) {  
       if ((GPIO3DATA & KEY) == 0x00) {
           BEEPON();
       } else {
           BEEPOFF();
       }
   }
}

/*********************************************************************************************************
  End Of File
*********************************************************************************************************/