/****************************************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:       2010-02-25
** Version:             V1.0
** Descriptions:        LED闪烁示例程序
**
**--------------------------------------------------------------------------------------------------------
** 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 LED_NUM      4                                                  /*  LED数量4个                  */
/*********************************************************************************************************
  全局变量
*********************************************************************************************************/
const INT32U led_mask[] = {1 << 0, 1 << 1, 1 << 2, 1 << 3, 1 << 4, 1 << 5, 1 << 6, 1 << 7 };

/*********************************************************************************************************
** 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，进行LED测试需要短接P2.8与LED1、P2.9与LED2、
**                      P2.10与LED3、P2.11与LED4。
**                      用户也可以根据自己的底板的设计自行连接
** input parameters:    无
** output parameters:   无
** Returned value:      无
*********************************************************************************************************/
int main (void)
{
   INT32S num = -1;
   INT32S dir =  1;

   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            */	

   GPIO2DIR |= 0xFF0;                                                   /*  设置P2.8-P2.11引脚为输出    */

   while (1) {  
       num += dir;
       if (num == LED_NUM) {
           dir = -1;
           num =  LED_NUM - 1; 
       } else if (num < 0) {
           dir =  1;
           num =  0;
       }
       GPIO2DATA &= ~(led_mask[num] << 8);
       myDelay(200);
       GPIO2DATA |=  (led_mask[num] << 8);
       myDelay(200);
   }
}

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