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1PWM输出实验
**
*********************************************************************************************************/
#include "config.h"

/*********************************************************************************************************
** 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0复位                 */
    T1PR    = 0;							                            /*  不设时钟分频                */
    PWM1CON = 0x0C;                                                     /*  使能PWM输出                 */
    T1MCR   = 0x02;						                                /*  设置T0MR0匹配后复位T0TC     */
    T1MR0   = Fpclk / 2000;                                             /*  设置PWM输出的周期           */
    T1MR2   = (Fpclk / 2000) / 2;                                       /*  设置PWM1.2输出占空比为50％  */
    T1MR3   = ((Fpclk / 2000) / 4) * 3;                                 /*  设置PWM1.3输出占空比为25％  */
    
    T1TCR   = 0x01;						                                /*  启动定时器0                 */
}

/*********************************************************************************************************
** Function name:       main
** Descriptions:        定时器1PWM输出
** input parameters:    无
** ouput parameters:    无
** Returned value:      无
*********************************************************************************************************/
int main (void)
{
    PINSEL1  = (PINSEL1 & (~(0x03 << 6))) | (0x02 << 6);                /*  选择MAT1.2输出              */
    PINSEL1  = (PINSEL1 & (~(0x03 << 8))) | (0x02 << 8);                /*  选择MAT1.3输出              */

    Timer1Init();                                                       /*  定时器1初始化               */
    
    while(1);
    return 0;
}
/*********************************************************************************************************
  END FILE
********************************************************************************************************/