PTR8000发送接收驱动程序。只需在主程序中只需做小小的改动就可以，使用这个模块！！！...

利用8051单片机驱动DS12C887，实现实时的日历时钟显示系统设计。-8051 driver using DS12C887, real-time calendar clock display system design.

led跑马灯显示，实现一秒钟闪一次。基础性的代码，比较简单。-led display

ads7843是一款4线电阻式触摸芯片，可以制成触摸屏，经调试绝对好用！-ads7843 is a four-lane chip resistor touch, touch screen can be made, absolutely useful debugging!

mifare 232读卡源程序用kei uvision打开-MIFARE reader source with open Kei uvision

超级单片机开发工具，我一直在用，还不错，下载后要解压。-Super microcontroller development tools, I have been using, quite good, downloaded after decompression.

生成AVR菜单的工具.rar是一款可以生成AVR菜单的工具.rar-Generation AVR tools menu. Rar is a menu can be generated AVR tools. Rar

我自己做的给予ST公司的upsd3234a单片机的频率计。可以测量10K以下的频率。这是此频率计的自检程序，在KEIL上调试仿真通过。-I have to do to give the ST

三相异步电动机直接转矩控制仿真程序，经调试通过，与大家共分享-DTC Control

MJ8游戏杆控制器 MJ8游戏杆控制器 MJ8游戏杆控制器-MJ8 joystick controller MJ8 Joystick Controller Joystick Controller MJ8 joystick controller MJ8 Joystick Controller MJ8

8051运算类子程序，包括双字节乘法子程序、多字节数乘10子程序、多字节无符号数出除法子程序、多字节ＢＣＤ码减法子程序、多字节ＢＣＤ码取补子程序、多字节ＢＣＤ码左移十进制一位（乘十）子程序。-8051 subroutine computing category, including double-byte multiplication subroutine, multi-byte count by 10 subroutines, multi-byte unsigned number of the division subroutine, multi-byte BCD subtraction subroutine code, code access multi-byte BCD complement subprogram, multibyte BCD code to the left of a decimal (by ten) subroutine.