C51单片机开发板电路和源代码，很详细，内部有该开发板的说明。顺便感谢下制作的公司...

isd4003的驱动程序,主要用于驱动isd4003的录放,很有用的啊-isd4003 drivers, mainly for the driver isd4003 recorders, very useful ah!

I2C总线基本操作函数,及几个对I2C总线接口器件24C04操作的函数。 -I2C bus basic operation function, and several of the I2C bus interface device to operate a function of 24C04.

基于以太网IC卡门禁控制的C++BUILDER程序-Ethernet-based IC card access control of the C++ BUILDER procedures

相关富士通单片机实用资料3-Fujitsu MCU related practical information 3

80c51f020，i2c管理时钟芯片PCF8583,-80c51f020, i2c management clock chip PCF8583,

暑假为学生培训写的51相关接口的所有源码及项目代码，包括串口通信、IIC、SPI、8255、ADC、PWM、WDT等，并且涉及到一些项目级的封装比如通讯协议等。-Summer vacation for students to write the 51 training-related interfaces and project all source code, including serial communication, IIC, SPI, 8255, ADC, PWM, WDT, etc., and involve a number of projects such as communications package-level agreements.

IIC总线的c语言程序，介绍 IIC总线的时序和操作方法-IIC Bus c Language Program, introduced IIC bus timing and method of operation

利用c8051f020单片机进行串口通讯的软件程序，此型单片机将会成为8位机主流-by Using C8051f020 MCU for serial communication software program, this type of SCM will become mainstream eight-

这是Fresscale单片机定时器输出比较的例子，该例程详细介绍了Timer模块输出比较功能，对单片机开发人员来说是个很好的参考。-This is an Example of Output of the Timer.

摩托罗拉单片机的定时器输入捕捉的原代码-Motorola MCU timer input capture the original code