64 input 32 output SCM procedures

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

本源代码用于使用ATMEL公司的AT89C51芯片实现硬件mp3，其中包括有特色的mp3解码算法和U盘功能读写程序。-Source code for use ATMEL Corporation AT89C51 chip hardware mp3, have characteristics which include mp3 decoding algorithm and U disk function to read and write procedures.

单片机烧写软件，绿色软件，免安装，解压缩后，可以直接使用-Single-chip software programmer, green software, free installation, unzip it, you can directly use

采用单片机控制，运用PDI控制算法，控制加热器的温度在37C左右-Single-chip computer control, the use of PDI control algorithm to control the heater temperature is around 37C

这个程序比较实用,主要功能是检测温度.进行温度的设置.使用的是DS18B20温度传感器.显示使用LED.-this procedure is practical, Detection is the primary function of temperature. temperature settings. using the temperature sensor DS18B20. that the use of L ED.

电子琴的源码，可以实现电子琴的开发以及应用、-dianzqin

我过龙芯二号的开发，龙芯二号的技术指标。-me for the development of the Godson-2, the Godson-2 technical indicators.

全面介绍了高质量PCB设计技巧，共为8章。-A comprehensive introduction to high-quality PCB design techniques, a total of 8 chapters.

胶印机印刷控制程序 -Offset printing control procedures

基于MC68HC908RF2芯片轮胎压力监测系统的发射程序，采用曼彻斯特编码，FSK，9600bps-MC68HC908RF2 chip-based tire pressure monitoring system for the launch procedures, the use of Manchester encoding, FSK, 9600bps