这是个自己写的数模调试程序，请各位同仁多多指教

一个用51MCU做电压表原代码.测式电压范围0~30V.电压精度50MV.-A voltage meter to do with 51MCU the original code. Measuring voltage range of 0 ~ 30V. Voltage accuracy 50MV.

用51写的旋转式编码器程序，可以让朋友们了解旋转式编码器的基础编程。-Written by 51 rotary encoder could offer my friends understand the rotary encoder based on programming.

HT1621的C51版C语言驱动-HT1621 C51 version of the C language drive

C8051F04x单片机PCA（可编程计数器阵列）检测UART0波特率。-C8051F04x Singlechip PCA (Programmable Counter Array) UART0 baud rate detection.

单片机驱动IDE硬盘的C程序-SCM IDE hard drive C Program

键盘示意图键盘示意图

MSP430系列单片机串口编程详细介绍，有实用的编例子和注释，很好的学习资料-MSP430 series microcontroller serial programming detailed description of the compilation of practical examples and notes, a very good learning materials

D12 的一些 开发资料 对开发D12相当有用-D12 some of the development of information very useful for the development of D12

单片机51控制的红外线遥控小车（原创），使用普通电视机遥控器遥控。含详细DOC说明文件和程序。-infrared remote control car (original), the use of ordinary TV remote control. DOC with detailed documentation and procedures.

AVR单片机入门及C语言高效设计实践（四） ATMEAG16L的I／O端口特点及使用 ATMEAG16L单片机有32个通用I／O口，分为PA、PB、PC和PD四组，每组都是8位。这些I／O口都可以通过各自的端口寄存器设置成输入和输出（即作为普通端口使用），有些I／O口还具有第二功能（我们在后面使用到这些第二功能时再介绍）。-AVR C language portal and efficient design practice (4) ATMEAG16L the I/O Ports characteristics and use of a microcontroller ATMEAG16L 32 common I/O mouth into PA, PB, PC and PD four groups, each group are eight. These I/O I can through their respective ports Register set to input and output (that is, use as a general port), Some I/O I also have the second function (in the back of the use of these second function tell).