epwm_up_aq

本源代码用于使用ATMEL公司的AT89C51芯片实现硬件mp3，其中包括有特色的mp3解码算法和U盘功能读写程序。(Source code for use ATMEL Corporation AT89C51 chip hardware mp3, have characteristics which include mp3 decoding algorithm and U disk function to read and write procedures.)

步进电机驱动，四相五线步进电机控制的测试程序，C51编写，读者可稍加修给即可应用(Stepper motor driver)

说明：  独居老人监控系统 使用80c51f020编程 具体的使用方法和接口，里面有(Elderly people living alone monitoring system using 80c51f020 programming methods and the use of specific interfaces, which has)

12C5A60S2 EEPROM 的读写操作(12C5A60S2 EEPROM read_write)

关于无线传感器网络时间同步算法RBS算法的仿真(About wireless sensor network time synchronization algorithm RBS algorithm simulation)

adsl及modem拨号软件 visual basic adsl modem(adsl modem and dial-up software visual basic adsl modem)

STM32F405 CAN程序，亲测可用(forSTM32F405 project itis OK)

不错的拓普微3.5寸LCD显示屏驱动代码，可以参考(Good TOPWAY 3.5-inch LCD display driver code, you can refer to it)

用单片机对遥控器实现解码，并在数码管上显示(Infrare Decoder)

利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h> unsigned char timer1 sbit PWM=P1^2 void system_Ini() { TMOD|= 0x11 //PWM TH1 = 0xfe //11.0592 TL1 = 0x33 TR1 = 1 IE =0x8A } main() { system_Ini() while(1) { if(timer1>100) timer1=0 if(timer1<30) PWM=0 else PWM=1 } )