8051的测控问题分析，有A/D、D/A、开关量接口

51单片机的一些常用程序代码51C51源代码-51 SCM 51C51 some commonly used code source code

4X4键盘扫描源程序 适用于基于Keil80C51 -4X4 Mirror扫captured Tai-ying, the most序适using quilt prices quilt Keil80C51

ATmega16数码管实验基数显示，数码管选通输出在前避免了字码在前产生的乱码，Proteus图-ATmega16 base of digital tube experiments showed that the digital control of strobe output of the former to avoid the code generated by the previous garbled, Proteus map

EMBEDDED SYSTEM FILE SYSTEM TEST

单片机模拟I2C读写看门狗芯片X5045，C51源程序，本人调试通过！-I2C read and write single-chip analog watchdog chip X5045, C51 source code, I debug through!

LT-1B开发板例子程序－ADC12_01

用MAX7221驱动数码管的实例源码，并在硬件上调试通过 。-MAX7221 LED driver with examples of source code, and hardware debugging through.

51单片机P2口接4*4键盘的行线和列线；红灯亮时进行频率输入；绿灯亮时进行占空比输入；频率值暂定在100到60KHZ之间；输入频率和占空比时要输够六位整数，不够的在前面补0；占空比以百比数（0-100）形式存在。-51 Singlechip P2 mouth then 4* 4 keyboard line and column line red light when the frequency of input green when the input duty cycle frequency value is tentatively scheduled for between 100 to 60KHZ input frequency and duty than enough to lose six integers, not enough to fill in front of 0 duty cycle than a few hundred (0-100) form.

这是一个有关PIC16F877单片机与串口通讯程序-This is one of the PIC16F877 microcontroller and serial communication program

银行磁卡系统的ABA2通信协议的C51实现代码-Bank card system ABA2 communication protocol to achieve the code C51