Resistance in a circuit computing a small tool that can quickly calculate the eq...

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

KeilC51manual

upsd3200_adc.c upsd3200_lcd.c upsd3200_pwm.c upsd3200_timer.c uPSD的实用程序-upsd3200_adc.c upsd3200_lcd.c upsd3200 _pwm.c upsd3200_timer.c uPSD practical procedures!

谐波计算，用用也不错，大家可以试一试。不好用也别找我啊-Harmonic basis, with use it as well, everyone can try. Bad do not use me ah

预付费电能表售电管理系统-数据库应Delphi-Prepaid energy meter electricity sales management system- the database should be Delphi

c51单片机与ＰＣ间的串口 通信驱动程序-C51 MCU and PC serial communication between the driver

keilC芯片选择可以看出STC中不需要包含

里面有很多单片机的代码,对初学者有一定的帮助-there are many SCM code for beginners will help

AT89S51,AT89S52,AT89S53单片机的引脚，内部组成结构详细资料说明。英文资料。-AT89S51, AT89S52, AT89S53 MCU pin, the internal composition of the structure of detailed information. And English languages.

一个LCD时钟显示程序，也好似比较简单的，适合初学者-an LCD clock display program, also appears relatively simple, for beginners