直流电机的开环控制c51远代码，调试通过，放心使用。

MCS５１和CH374做USB主机与HID设备通信-MCS51 and CH374 to do USB host and HID equipment communications

此程序可以实现两个单片机之间的相互通信；串口采用方式1工作，10位异步接受和发送，波特率可变，由定时器1控制；且含有校验-This program can be achieved between the two microcontrollers communicate with each other serial port mode 1 using the work of 10-bit asynchronous receive and send, variable baud rate, from Timer 1 control and contains a checksum

单片机 时钟程序,包含秒表，闹钟，时间三个功能-MCU clock.c

此C语言程序实现串行接口电压输出型D/A转换器MX532的控制。-This C language program serial interface voltage output type D/A converter MX532 control.

很好的c语言24c01代码，经试验可以使用，分享一下-24c01 good c language code, as the pilot can use, share

用L293步进电机驱动芯片做的步进电机驱动器.-Stepper motor driver using L293 chip to do the stepper motor drive.

A/D转换器ADC0832驱动程序，该程序属于A/D的基础程序，可以调用该函数来实现A/D转换-A/D converter ADC0832-driven program, which belongs to A/D based program, you can call this function to achieve the A/D converter

1602LCD显示c51-1602LCD show C51

MCS-51系列单片机实例详解和案例代码，代码都是基于C语言-MCS-51 series single-chip Detailed examples and case code, the code are based on C language

目前市场上有很多语音录放系统，如录放音玩具、录音笔等，大多采用了单片机控制一个语音芯片，再接一个FLASH存储器的结构。单片机可以控制录放时间，选取特定时间段的播放以及单多声道的录放，容易通过改变外接存储FLASH改变录放时间。 我们做的是一个简单模型，只能录放。 只需要录音和放音时的外部 ROSC 端振荡电阻不同就能改变声音的录入和播放速度，录入的时间越短音质越好，录入的时间越长音质越差 它采用模拟量直接存贮技术，因此保真度高，音质好 -Currently on the market there is a lot of voice recording systems, such as sound recording toys, sound recording pens and so on, most of the single-chip microcomputer to control the use of a voice chip, making the structure of a FLASH memory. Single-chip microcomputer can control the playback time, select a specific period of time many of the players, as well as single-channel recording, easy to FLASH memory by changing the external playback time change. We make a simple model, only playback. Required only when the recording and playback-side oscillation of the external resistor ROSC will be able to change different recording and playback of sound speed, the shorter the time of admission, the better sound quality, longer recording sound worse using direct ana