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				打卡等级:常住居民III打卡总天数:184最近打卡:2025-10-27 08:02:12   中级会员 
 
 
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 发表于 2024-9-13 21:53:22
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| 我使用STC-ISP的这个示范历程,并没有检测到PWM波,但是我看数据手册中15F2K60S2是有增强型十五位PWM的,求大佬解答
 /*---------------------------------------------------------------------*/
 /* --- STC MCU Limited ------------------------------------------------*/
 /* --- STC15Fxx 系列 输出任意周期和任意占空比的PWM实例-----------------*/
 /* --- Mobile: (86)13922805190 ----------------------------------------*/
 /* --- Fax: 86-0513-55012956,55012947,55012969 ------------------------*/
 /* --- Tel: 86-0513-55012928,55012929,55012966-------------------------*/
 /* --- Web: www.STCMCU.com --------------------------------------------*/
 /* --- Web: www.GXWMCU.com --------------------------------------------*/
 /* 如果要在程序中使用此代码,请在程序中注明使用了STC的资料及程序        */
 /* 如果要在文章中应用此代码,请在文章中注明使用了STC的资料及程序        */
 /*---------------------------------------------------------------------*/
 
 //本示例在Keil开发环境下请选择Intel的8058芯片型号进行编译
 //若无特别说明,工作频率一般为11.0592MHz
 
 
 #include "reg51.h"
 
 #define CYCLE   0x1000L     //定义PWM周期(最大值为32767)
 #define DUTY    10L         //定义占空比为10%
 
 #define PWMC        (*(unsigned int  volatile xdata *)0xfff0)
 #define PWMCH       (*(unsigned char volatile xdata *)0xfff0)
 #define PWMCL       (*(unsigned char volatile xdata *)0xfff1)
 #define PWMCKS      (*(unsigned char volatile xdata *)0xfff2)
 #define PWM2T1      (*(unsigned int  volatile xdata *)0xff00)
 #define PWM2T1H     (*(unsigned char volatile xdata *)0xff00)
 #define PWM2T1L     (*(unsigned char volatile xdata *)0xff01)
 #define PWM2T2      (*(unsigned int  volatile xdata *)0xff02)
 #define PWM2T2H     (*(unsigned char volatile xdata *)0xff02)
 #define PWM2T2L     (*(unsigned char volatile xdata *)0xff03)
 #define PWM2CR      (*(unsigned char volatile xdata *)0xff04)
 #define PWM3T1      (*(unsigned int  volatile xdata *)0xff10)
 #define PWM3T1H     (*(unsigned char volatile xdata *)0xff10)
 #define PWM3T1L     (*(unsigned char volatile xdata *)0xff11)
 #define PWM3T2      (*(unsigned int  volatile xdata *)0xff12)
 #define PWM3T2H     (*(unsigned char volatile xdata *)0xff12)
 #define PWM3T2L     (*(unsigned char volatile xdata *)0xff13)
 #define PWM3CR      (*(unsigned char volatile xdata *)0xff14)
 #define PWM4T1      (*(unsigned int  volatile xdata *)0xff20)
 #define PWM4T1H     (*(unsigned char volatile xdata *)0xff20)
 #define PWM4T1L     (*(unsigned char volatile xdata *)0xff21)
 #define PWM4T2      (*(unsigned int  volatile xdata *)0xff22)
 #define PWM4T2H     (*(unsigned char volatile xdata *)0xff22)
 #define PWM4T2L     (*(unsigned char volatile xdata *)0xff23)
 #define PWM4CR      (*(unsigned char volatile xdata *)0xff24)
 #define PWM5T1      (*(unsigned int  volatile xdata *)0xff30)
 #define PWM5T1H     (*(unsigned char volatile xdata *)0xff30)
 #define PWM5T1L     (*(unsigned char volatile xdata *)0xff31)
 #define PWM5T2      (*(unsigned int  volatile xdata *)0xff32)
 #define PWM5T2H     (*(unsigned char volatile xdata *)0xff32)
 #define PWM5T2L     (*(unsigned char volatile xdata *)0xff33)
 #define PWM5CR      (*(unsigned char volatile xdata *)0xff34)
 #define PWM6T1      (*(unsigned int  volatile xdata *)0xff40)
 #define PWM6T1H     (*(unsigned char volatile xdata *)0xff40)
 #define PWM6T1L     (*(unsigned char volatile xdata *)0xff41)
 #define PWM6T2      (*(unsigned int  volatile xdata *)0xff42)
 #define PWM6T2H     (*(unsigned char volatile xdata *)0xff42)
 #define PWM6T2L     (*(unsigned char volatile xdata *)0xff43)
 #define PWM6CR      (*(unsigned char volatile xdata *)0xff44)
 #define PWM7T1      (*(unsigned int  volatile xdata *)0xff50)
 #define PWM7T1H     (*(unsigned char volatile xdata *)0xff50)
 #define PWM7T1L     (*(unsigned char volatile xdata *)0xff51)
 #define PWM7T2      (*(unsigned int  volatile xdata *)0xff52)
 #define PWM7T2H     (*(unsigned char volatile xdata *)0xff52)
 #define PWM7T2L     (*(unsigned char volatile xdata *)0xff53)
 #define PWM7CR      (*(unsigned char volatile xdata *)0xff54)
 
 sfr PIN_SW2 =   0xba;
 
 sfr P0M1    =   0x93;
 sfr P0M0    =   0x94;
 sfr P1M1    =   0x91;
 sfr P1M0    =   0x92;
 sfr P2M1    =   0x95;
 sfr P2M0    =   0x96;
 sfr P3M1    =   0xb1;
 sfr P3M0    =   0xb2;
 sfr P4M1    =   0xb3;
 sfr P4M0    =   0xb4;
 sfr P5M1    =   0xC9;
 sfr P5M0    =   0xCA;
 sfr P6M1    =   0xCB;
 sfr P6M0    =   0xCC;
 sfr P7M1    =   0xE1;
 sfr P7M0    =   0xE2;
 
 sfr PWMCFG  =   0xf1;
 sfr PWMCR   =   0xf5;
 sfr PWMIF   =   0xf6;
 sfr PWMFDCR =   0xf7;
 
 void main()
 {
 P0M0 = 0x00;
 P0M1 = 0x00;
 P1M0 = 0x00;
 P1M1 = 0x00;
 P2M0 = 0x00;
 P2M1 = 0x00;
 P3M0 = 0x00;
 P3M1 = 0x00;
 P4M0 = 0x00;
 P4M1 = 0x00;
 P5M0 = 0x00;
 P5M1 = 0x00;
 P6M0 = 0x00;
 P6M1 = 0x00;
 P7M0 = 0x00;
 P7M1 = 0x00;
 
 PIN_SW2 |= 0x80;                //使能访问XSFR
 PWMCFG = 0x00;                  //配置PWM的输出初始电平为低电平
 PWMCKS = 0x00;                  //选择PWM的时钟为Fosc/(0+1)
 PWMC = CYCLE;                   //设置PWM周期
 PWM2T1 = 0x0000;                //设置PWM2第1次反转的PWM计数
 PWM2T2 = CYCLE * DUTY / 100;    //设置PWM2第2次反转的PWM计数
 //占空比为(PWM2T2-PWM2T1)/PWMC
 PWM2CR = 0x00;                  //选择PWM2输出到P3.7,不使能PWM2中断
 PWMCR = 0x01;                   //使能PWM信号输出
 PWMCR |= 0x80;                  //使能PWM模块
 PIN_SW2 &= ~0x80;
 
 while (1);
 }
 
 
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