51单片机矩阵键盘的设计与调试，建议使用52单片机。

c8052的I2C子程序,比较实用可靠,我们使用的是C8051F020-c8052 I2C subroutine, more practical and reliable, we are using the C8051F020

在PIC16C55上实现时钟功能.-in achieving clock function.

让数码管的亮度一致,原代码是运行在AT89S52上,12MHz-The brightness of the digital control line, the original code is run on AT89S52 on, 12MHz

用8051实现FPGA（电路与代码）~

运算放大器NE5532的中文资料。有需要的朋友请下载-Op-amp NE5532 Chinese information. Friend in need, please download

该程序实现发送缓冲器0向接收缓冲器0发送数据的自测试模式，其中接收采用中断方式

51定时中断例程，比较经典的说明了定时器的实际使用-51 timer interrupt routines, the more classical note of the actual usage timer

SPWM三相波形发生器，可应用于SA4828芯片的应用-SPWM three-phase waveform generator can be used SA4828 chip Application

本文件是一套用示波器显示时钟走动和头像动画的系统，包括原理图文件和程序文件，还有效果图进效果DV图文件-This document is an oscilloscope display with clock and head of animation around the system, including schematic documents and program files, as well as the effect of graph paper into the effects of DV map

AT89C51单片机的细分电机的驱动程序-AT89C51 microcontroller driver for the motor segments