在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张， 于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却...

串口模拟程序,只占用一个T2资源-serial simulation program, occupying only a T2 resources

providing learners for programming with C51, and joining in these web,hopefully finding people with C51 programming so that it will can be studied each other.-providing learners for programming with C 51, and joining in these web, hopefully finding people with C51 programming so that it will can be studied each other.

温度控制电路 运用PID输出温度，使输出温度控制在所需范围-Temperature control circuit

用５１芯片控制CF卡的技术文章，对广大５１开发者具有参考价值-control CF card chip technology articles, the majority of 51 developers have reference value

基于80C51和CH375的实现USB打印机驱动器的设计与实现方法-Based on 80C51 and CH375 realize the USB printer driver design and implementation

实用的PIC单片机的单相双向电能芯片5460校准程序。-PIC MCU practical single-phase bi-directional power 5460 chip calibration procedure.

这是微软的一个USB块传输例程，虽然它是基于Intel USB开发板的，但是也很值得我们好好的研究。-This is a Microsoft USB block transmission routines, although it is based on the Intel USB development board, but also worthy of our good look.

ads7843是一款4线电阻式触摸芯片，可以制成触摸屏，经调试绝对好用！-ads7843 is a four-lane chip resistor touch, touch screen can be made, absolutely useful debugging!

p18f452液晶控制驱动程序，C语言实现-p18f452 LCD control driver, C language

MSC1210中文资料--内核兼容8051的MSC1210单片机，具有高性能ADC、片内存储器以及Flash编程应用等功能。实际应用系统往往需要进行高精度的测量，同时还必须进行实时快速控制，提高其开发效率。为此人们常采用高精度A/D芯片加带ISP开发功能的单片机系统来实现。德州仪器（TI）的MSC1210单片机解决了上述问题。它集成了一个增强型8051内核、高达33 MHz的时钟周期、8路24位高精度∑-△A/D转换器、Flash存储器等-MSC1210 Chinese data- 8051 MSC1210 microcontroller core compatible with high-performance ADC, on-chip Flash program memory and application functions. Practical applications often require high-precision measurements, but also the need for real-time fast control, to improve their development efficiency. To do this people often use high-precision A/D chip increases with ISP microcontroller system development function to achieve. Texas Instruments (TI) of the MSC1210 microcontroller to solve the above problems. It integrates an enhanced 8051 core, up to 33 MHz clock cycle, 8-channel 24-bit high-precision Σ-△ A/D converter, Flash memory, and so on ... ...