通过编码开关（旋转编码器）控制数码管的加减一！程序详细的体现了编码器的编程和数码管的单片机的编程！本程序通过AT89C51和24脉冲编码器的测试

AT24C02EEPROM C语言子程序-AT24C02EEPROM C language subroutines

51系列单片机的uCOS-II原代码-51 Series MCU uCOS-II source code

12864中文字库液晶演示程序 MS12864R 测试程序(串口) 连线表 CPU=89C52 SystemClock=12Mhz CS=P3.0 SCLK=P3.1 SID=P3.2 Reset=RC in Board

l045w型段码液晶例程（汇编语言）-l045w type of code routines LCD (assembly language)

请将下载的2个插件内容拷贝到uVision 的安装目录下的 KeilC51BIN 中 2. 修改 Tool.ini, 此文件位于 uVision 的安装目录 keil 下. 请将下面的内容 添加到 [C51] 部分的后面. AGSI1=ledkey.dll ("ledkey") AGSI2=simboard.dll ("simboard") 3. 重启uVsion. 进入Debug 模式, 打开菜单Peripheral, 发现增加了2项 分别是键盘LED仿真板，51实验仿真板。-Please download the contents of two plug-ins are copied to the installation directory uVision under KeilC51BIN 2. Modify Tool.ini, this file is located in the installation directory uVision under keil. Please Add the following line to [C51] part of the back. AGSI1 = ledkey.dll (ledkey) AGSI2 = simboard.dll (simboard) 3. Reset uVsion. entered the Debug mode, open the menu Peripheral, found an increase of 2 are keyboard LED emulation board, emulation board 51 experiments.

keil下ISO7816规则的APDU程序-keil rules under ISO7816 procedures Application Protocol Data Unit

240*160液晶驱动程序，厂家提供的源代码-240* 160 LCD driver, manufacturers provide source code

这是arm92440的脉宽调制（pwm） 适合初学者使用-Arm92440 This is the pulse width modulation (pwm) Suitable for beginners to use

基于C51单片机的PPOE协议栈源代码。-C51 microcontroller based on the PPOE protocol stack source code.

采用直流电机测速单元模拟出租车速度，通过A/D转换进行速度采样，利用单片机的定时器/计数器定时和计数，用LED数码管或LCD显示总价和时间，并通过键盘进行单价设定及时间显示，键盘功能自行定义。-DC Motor Speed modules using simulation taxi speed, through the A/D conversion speed of sampling, the use of single-chip timer/counter timing and counting, with LED digital tube or LCD display the total price and time, and through keyboard Price settings and time display, keyboard function on its own definition.