单片机AT90S系列 制作简易USB接口（软件模拟,无usb硬件）。

语音处理，单片机语音处理，台湾IC,这个软件是一个很使用的软件-speech processing, speech processing SCM, Taiwan IC, the software is a very use of the software

采用12位MAX 197对外部信号采样。采用全周波傅立叶积分算法，对采样信号进行处理，对电力系统的电压有效值、功率等特征量进行实时在线监测；采用全数字测量法测量相位差；并采用自适应技术调整采样间隔，消除非同步采样对计算造成的误差，利用PIC18F458捕获功能实时监测电力系统频率波动，修订采样间隔。分析了各量的测量误差，均达到标准。并提供友好的人机交互界面。-used 12 MAX 197 pairs external signal sampling. Using Fourier-Cycle Integration Algorithm for the sampling signal processing, power systems to the RMS voltage, power characteristics of the volume in real-time on-line monitoring; All digital measuring method phase difference; Adaptive technology and the sampling interval, the elimination of non-synchronous sampling of the calculation error using PIC18F458 capture real-time monitoring of power system frequency fluctuations amended sampling interval. The analysis of the measurement error are up to standard. And to provide a friendly man-machine interface.

麦迪工作室51单片机开发板键盘的驱动代码。设计了抬键监听机制，防止一次按键多次触发。-Madison Studio 51 MCU development board keyboard-driven code. Designed to raise key monitoring mechanism to prevent a key trigger several times.

单片机串口中断程序和键盘程序-SCM interrupt procedures and procedures keyboard

用8个数码管，用一片48和一片138控制 的子程序，-with eight digital control with a 48 and a control subroutine 138,

CRC32，适用于internet,文件等的校验，可靠程度比CRC32高，但运算要比CRC16复杂，需要的占用的代码空间也大一点-CRC applied to internet, checking the documents, reliable than CRC, but the operation than CYXLIC REDUNDANCY complex, requiring the occupants of the large code space 1:00

c8051f020温度传感器DS1620 调通了的啊-C8051F020 tune DS1620 temperature sensor had the ah

这是一个用汇编语言编写的程序,用来控制电阻加热炉温度-This is a compiled language with the procedures used to control the temperature resistance furnace

44键盘多模块演示程序，使用双向双次键扫描技术LCALL INKEY 双向双次键扫描-keyboard module demonstration, the use of the bi-directional bonding time scanning technology LCALL INKEY meeting of the bi-directional scanning Bond

标准51单片机用定时器产生PWM波形实现led渐亮渐灭-Standard 51 MCU generate PWM waveforms using Timer led gradually to achieve gradual eradication of light