main.c

arm time 调试程序。含中断。初学者有大用。交流。

/****************************************Copyright (c)***************************************************
**                               Guangzou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.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:         Li Baihua
** Modified date:       2008-04-09
** Version:             1.1
** Descriptions:        定时器1匹配输出实验
**
*********************************************************************************************************/
#include "config.h"

#define  LED  (1 << 17)

/*********************************************************************************************************
** Function name:       Timer1Init
** Descriptions:        定时器1初始化
** input parameters:    无
** ouput parameters:    无
** Returned value:      无
*********************************************************************************************************/
void  Timer1Init(void)
{	
    T1TCR  = 0x02;                                                      /*  定时器1复位                 */
    T1PR   = 0;							                                /*  不设时钟分频                */
    T1MCR  = 0x02;						                                /*  设置T1MR1匹配后复位T1TC     */

    T1EMR  = 0x03 << 8;                                                 /*  匹配翻转                    */
    T1MR0  = Fpclk / 2;                                                 /*  设置0.5秒匹配值             */
    T1IR   = 0x01;                                                      /*  清除中断标志                */
    T1TCR  = 0x01;						                                /*  启动定时器1                 */
}

/*********************************************************************************************************
** Function name:       main
** Descriptions:        定时器1匹配输出翻转主程序
** input parameters:    无
** ouput parameters:    无
** Returned value:      无
*********************************************************************************************************/
int main (void)
{
    PINSEL1  = PINSEL1 & (0x03 << 6) ;                                  /*  选择MAT1.2输出              */
    PINSEL1  = PINSEL1 | (0x02 << 6);                                   /*  选择MAT1.2输出              */

    Timer1Init();                                                       /*  定时器1初始化               */
    
    IRQEnable();                                                        /*  IRQ中断使能                 */

    while(1);
    return 0;
}
/*********************************************************************************************************
  END FILE
********************************************************************************************************/