这是一本学习vhdl语言以及EDA的好书，适合初学者，我强力推荐...

KEIL 51上的数字电压表实验程序 用C编写 已经调试过-KEIL 51 on the digital voltage meter experimental procedures have been prepared with C debugging off

MAX1247子程序,实现12位高精度串行AD转换-MAX1247 subroutine, 12 realize high-precision serial AD converter

数码管的显示子程序，对于用PROTEUS来仿真的同志，可以尝试的玩一下-Digital tube display subroutine for simulation using PROTEUS to comrades, you can try to play like

sd卡的程序，上面记录了SD卡的详细读卡写卡方式，适合51单片机或者其他-sd card procedures, the above records the SD card reader to write in detail the way cards for 51 single-chip or other

简易正弦波三角波方波发生器 使用keil C51,12MHZ晶振,AT89C2051 -Simple sine wave square wave triangle wave generator using keil C51, 12MHZ crystal, AT89C2051

支持I2C总线的EEPROM24lc256芯片的读写原程序-support I2C Bus EEPROM24lc256 chip reader original program

基于凌阳单片机的语音 手动 播放音乐 的 汇编程序-Sunplus based on single-chip voice manually play the music of the assembler

2003年全国大学生电子设计竞赛试题。设计分为5个模块：前轮PWM驱动电路、后轮PWM驱动电路、轨迹探测模块、障碍物探测模块、光源探测模块。有完整的设计实现及报告说明-2003 National Undergraduate Electronic Design Contest questions. Design is divided into five modules : front-wheel drive PWM circuit, rear-wheel drive PWM circuit, track detection module, module detect obstructions, light detection module. A complete design and realization report

当按下开关SP1，AT89S51单片机产生“叮咚”声从P1.0端口输出到LM386，经过放大之后送入喇叭。 -When pressing the switch SP1, AT89S51 Single-chip a " ding dong" sound from the output port P1.0 to LM386, after amplification into speakers after.