这是一个verilog源码的优先编码器，可以通过led显示结果。

c51无参数调用asm-decoder called with no arguments asm

基于单片机准双向I/O的键盘程序基于单片机准双向I/O的键盘程序-Based on single-chip quasi-bidirectional I/O keyboard procedures Singlechip-based quasi-two-way I/O keyboard procedures

4对于进入密码锁的钥匙，假设复位后8个LED全亮，并使用sw1、sw2两个，然后sw2-> sw1-> sw1-> sw2，则表示解锁右侧会导致8个LED全暗。

An "improved" inductance / capacitance meter Actually, it works much the same as the originalIt differs from the original in that: A 16F628 PIC is used. This has internal comparator, which means the LM311 is no longer needed.Software calibration is used. The finished meter can be calibrated against "any" accurate capacitor within the range 100pF to about 10000pF -An "improved" inductance/capacitance meter Actually, it works much the same as the originalIt differs from the original in that: A 16F628 PIC is used. This has internal comparator, which means the LM311 is no longer needed.Software calibration is used. The finished meter can be calibrated against "any" accurate capacitor within the range 100pF to about 10000pF

一个用AVR单片机做的冲电器程序，内包含详细的主程序和头文件。-A single-chip AVR to do with the red electrical procedures, within the main program contains a detailed and header files.

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 发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高， 但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支! 那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?

UCOSII移植到４３０芯片中使用，嵌入式系统多改改就明白了-UCOSII transplanted to the use of 430 chip, embedded systems and more particularly so on to understand

TLC5615是TI公司的10位D/A转换芯片，DIP-8封装，数据为串行方式，简单好用。内有该芯片的KIEL C51源代码，希望和大家共享。-TLC5615 is TI

飞思卡尔智能车闭环控制 18K-20K 变化-Freescale intelligent closed-loop control cars 18K-20K changes