如何设定STC15系列单片机内部时钟频率？

#include "reg51.h"

sfr CLK_DIV = 0x97;

void main()
{
    CLK_DIV = 0x00; //不分頻
    //CLK_DIV = 0x01; //除2
    //CLK_DIV = 0x02; //除4
    //CLK_DIV = 0x03; //除8
    //CLK_DIV = 0x04; //除16
    //CLK_DIV = 0x05; //除32
    //CLK_DIV = 0x06; //除64
    //CLK_DIV = 0x07; //除128
  
    while(1);
}

huihui163 发表于 2016-11-7 18:04
可以这样理解，必须先通过烧录软件选择振荡器频率，设置时钟分频寄存器确定系统时钟频率。在STC15系列当中 ...

#include "config.h" //包含STC15Fxxxx.h

void main()
{
      CLK_DIV = 0x00; //不分頻
      //CLK_DIV = 0x01; //除2
      //CLK_DIV = 0x02; //除4
      //CLK_DIV = 0x03; //除8
      //CLK_DIV = 0x04; //除16
      //CLK_DIV = 0x05; //除32
      //CLK_DIV = 0x06; //除64
      //CLK_DIV = 0x07; //除128
  
      while(1);
}

#ifndef		__CONFIG_H
#define		__CONFIG_H


/*********************************************************/

#define MAIN_Fosc		22118400L	//定义主时钟
//#define MAIN_Fosc		12000000L	//定义主时钟
//#define MAIN_Fosc		11059200L	//定义主时钟
//#define MAIN_Fosc		 5529600L	//定义主时钟
//#define MAIN_Fosc		24000000L	//定义主时钟


/*********************************************************/

#include	"STC15Fxxxx.H"



#endif