/*-------------------------------------------------------------------------------------------------

FILE NAME  : pwm.c

DEscrīptION  :

    --------------------------------------------------------------------------------------------*/

//------------------------------------------Include files------------------------------------------------//

#include  <lpc2103.h>

//--------------------------------------------Variable ------------------------------------------------//

 

//---------------------------------------Function prototype-----------------------------------------//

 

//-------------------------------------------Function -----------------------------------------------//

 

//-------------------------------------------Define---------------------------------------------------//

/*-----------------------------------------------------------------------------------------------------

NAME               : main()

FUNCTION    : 使用PWM功能输出占空比1:1的PWM波形

ENTRY  TYPE  : void

RETURN TYPE  : int

PURPOSE          :

VERSION          : 0.0.0

DEscrīptION  :

CREATE DATE   : 12.07.2006

LOGS                :--\

- 1.create;

-----------------------------------------------------------------------------------------------------*/

int main(void)

{

 PINSEL0=0x00008000;                    //设置MAT2.0--P0.7

 PINSEL1=0x00000000;

 T2TCR=0x03;                                  //在设置之前，先将定时器复位

 T2IR=0x01;                                     //清除中断标志位

 T2PR=0x00;                                     //设置预分频器

 T2PWMCON=0x01;                         //使能相应PWM模式位MAT2.0

 T2MCR=0x400;                               //MR3匹配时，定时器复位

 T2MR0=1000;                                 //设置匹配寄存器

 T2MR3=2000;

 T2TCR=0x01;                                  //重新启动定时器

 while(1);

 return(0);

}

 

//---------------------------------------- End of file -------------------------------------------//