CRCF_src

锁相环用于电机转速精准检测，资料很不错，值得下载(Phase-locked loop for accurate detection of motor speed)

基于51单片机的PT2314音频功放程序，可实现MIC和音频输入切换及音量音调控制，并用5110显示(Based on 51 single-chip audio amplifier PT2314 program can achieve MIC and audio input switching and volume tone control and display with 5110)

21天学通51单片机开发源代码，学习51单片机的教材，值得下载(21 Days 51 MCU development of source code, 51 MCU learning materials, worth downloading)

codejock 13 and activasi

交通灯的开发，实现主道停留60秒，干道停留20秒，出现紧急情况采用按键控制(The development of traffic lights, the main road to stay 60 seconds, the trunk stay for 20 seconds, the event of an emergency using the button control)

模拟PWM信号控制小灯，控制二极管占空比(Analog PWM signal control light)

51单片机模拟一个USB键盘的代码，c语言编写的(51 USB keyboard microcontroller code that simulates a, c languages)

助赢无线发射模块24l01调试程序for xs128(24l01 debugger to help win wireless transmitter module for xs128)

华中科大第八届的程序 拿了赛区的二等奖 关于飞思卡尔智能车电磁组(sensor group)

计时器,实现时钟计时(reckon by time)