使用51单片机和usb ch375芯片，完成与pc之间的通讯-The use of 51 single-chip computer and usb ch375 chips, complete with communications between pc

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.

仪器仪表键盘显示模拟系统，用AT89S52芯片作为系统的CPU，控制系统的按键及显示器部分。用8路同相三态双向总线收发器74LS245芯片驱动LED。4X4矩阵键盘作为系统人机交互的重要部分，用于向单片机应用系统输入数据或控制信息，设计4X4矩阵键盘分别对应键码“0-F”。系统可以实现的基本功能包括开机LCD液晶屏幕显示“大专05电子信息X班XXX毕业设计”信息；按下任意一个按键，LCD液晶屏幕显示相应按键的信息。在基本功能的基础上还增加了一个扩展功能，即增加一个LED数码管同步显示相应键码-Show the simulated keyboard instrumentation systems, using AT89S52 chip as a system CPU, system control buttons and display parts. With 8-phase three-state bidirectional bus transceiver 74LS245 chip-driven LED. 4X4 matrix keyboard system as an important part of human-computer interaction, single-chip microcomputer application system used to input data or control information, the design of 4X4 matrix keyboard key code corresponding to

C51中必备的汉字内码提取工具,让单片机很好的输入输出汉字.-C51 in the essential character of the code extraction tool that allows single-chip input and output of Chinese characters very well.

MSP430F2350 I2C Library

该文件为研究ps/2协议在鼠标、键盘中的应用。-to study the document ps/2 agreement in the mouse, keyboard of.

16*2液晶显示驱动程序，包含字符输出和字符串输出函数，可直接使用-16* 2 LCD driver output and the string contains the character output function can be used directly

msp430f2系列的资料，适合初学者，希望大家下载学习-msp430f2 series of information, suitable for beginners, I hope everyone downloads Learning

32位arm9微处理器S3C2410的定时器测试源代码-32-bit ARM9 microprocessor S3C2410 timer test source code

此代码是凌阳61板实验LCD显示汉字的原程序-This code is a 61 plate experiment Sunplus LCD display Chinese characters, the original procedure