C8051F040 T4 capture measured pulse frequency square

51单片机系统中运用电脑上的大键盘！ Keyboard接线 PS/2--------51 1 DATA------P3.4 3 GND 4 VCC 5 CLK-------P3.3 接在51的外部中断，触发方式为低电平 AT89x51使用12M Modified by Shen Peng! Postgraduate of 2003, 7 Department Harbin Engineering University-51 microcomputer system on the use of the computer keyboard! Keyboard Connection PS/2--------51 a DATA------ P3.4 three GND 4 VCC five CLK------- P3.3 Then in the 51 external interrupt trigger mode for low-level AT89x51 use 12M Modified by Shen Peng! Postgraduate of 2003, seven Department Harbin Engineering University

24c01的读写程序，稍加改动就可移植到自己的程序中，-24c01 reading and writing process, little change can be transplanted to their own procedures,

可以用．精度达到１度．调试通过．显示部分用的是MAX7219 -can use. Achieve a degree of precision. Debugging through. The show is part of MAX7219

介绍zlg7290的pdf，介绍得很详细，还有程序实例。-Introduction zlg7290 the pdf, very detailed introduction, there are instances.

8051F_Modbus.rar是在C8051F020单片机上编写的ＣＲＣ１６校验的MODBUS协议.-C8051F020 Singlechip 8051F_Modbus.rar is prepared CRC16 checksum of the MODBUS protocol.

示例程序下载关于单片机接上-download examples of SCM connected

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

LT_1B msp430开发板例子程序－Flash

IGBT安装指南.PDF IGBT安装指南.PDF-IGBT Installation Guide. PDF IGBT Installation Guide. PDF

三菱16位单片机M306N0系列，串口驱动源码。-Mitsubishi 16-bit microcontroller M306N0 series, serial driver source code.