51单片机编程说明，值得推荐，写的非常好的资料，与大家共享！...

飞思卡尔的电子钟和电子琴的课程设计,包括源代码-Freescale electronic bell and the organ of the curriculum design, including source code

51单片机模拟I2C总线的C语言实现-51 microcontroller simulation I2C Bus C Language

DS18B20驱动程序,已通过实物认证.-DS18B20 driver has passed certification in kind.

行走小绿人是用ht1632驱动程序由6*8*8块矩阵组成的24*16LED点阵屏幕来显示行走小绿人的动画。主芯片控制采矿ht4810a数据传输，

用于工业控制方面.常见的板卡操作.板卡型号为812板.-for industrial control. Common card operation. Card Model 812 board.

开机自启动程序，很好很强大的。每次开机都能自己启动此程序。-Boot from the startup procedure, very good very strong. Each boot can start this process themselves.

R8C/1A、1B是瑞萨公司的单片机。这是R8C/1A与ATC2402的IIC通信源代码。-R8C/1A, 1B is the Renesas microcontroller. This is the R8C/1A the IIC communication with the ATC2402 source code.

51单片机P2口接4*4键盘的行线和列线；红灯亮时进行频率输入；绿灯亮时进行占空比输入；频率值暂定在100到60KHZ之间；输入频率和占空比时要输够六位整数，不够的在前面补0；占空比以百比数（0-100）形式存在。-51 Singlechip P2 mouth then 4* 4 keyboard line and column line red light when the frequency of input green when the input duty cycle frequency value is tentatively scheduled for between 100 to 60KHZ input frequency and duty than enough to lose six integers, not enough to fill in front of 0 duty cycle than a few hundred (0-100) form.

使用汇编语言的89C2051LED显示程序源码-The use of assembly language source 89C2051LED display program

ATMEGAL16L ICC AVR 可调占空比方波-ATMEGAL16L ICC AVR adjustable duty-cycle square wave