pwm.c

8051单片机的LCDTV用户界面程序

/*
   //*************************************************************************
   //
   //                  M X I C   P R O P R I E T A R Y
   //
   //           COPYRIGHT (c)   2005 BY MXIC SHENZHEN.
   //                     --  ALL RIGHTS RESERVED  --
   //
   // File Name:	PWM.C
   // Created:		6 Apr. 05 by AndyHu
   // Modified:
   // Revision:		1.0
   //
   //*************************************************************************
   //
   // 
   //*************************************************************************
   */

#include "mxREG52.H"
#include <stdio.h>


extern unsigned char PWM_status;
void Tone_Open(void);
void Backlight_Control(void);


void Tone_Open(void)
{
PWMC=0x14;
//PWMD=0;
//DSCA=1;
PWMP2=0;//21Khz
PWM2=PWM_status;
//PWM1E=1;
}

void Backlight_Control()
{
Tone_Open();
//  while(1)
//  {
//   }
}