Hardware_PCB_Interface，硬件pcb 接口

键盘与显示，按下相应的按键，数码管就显示相应的数字-The keyboard and display, press the corresponding button, digital controls, it displays the corresponding figure

这篇实验报告是关于单片机多路数据采集的，本实验由2大部分组成：1、为用EPOROM构成的心电信号发生器；2、为多路信号的微机采集与显示；第一部分实验主要研究可编程序存储器EPROM的非计算机应用。把存储在EPROM中的数字心电信号读出并通过D/A转换为模拟信号显示在示波器屏幕上。 第二部分实验的目的是研究一个数据采集系统，该系统利用ECD-51型单片机为中心，由D/A芯片等将各种低频信号以及由EPROM产生的模拟人体心电信号变换成离散的数字信号存入微机内存，以待进行数据处理和分析，然后再通过D/A转换将其还原成模拟信号显示在示波器的屏幕上。 -This experimental report on the multi-SCM data acquisition, the experiment by the two major components : 1. EPOROM pose for the use of the ECG signal generator; 2, multi-path signals in the computer acquisition and display; the first major study of experimental programmable EPROM memory in non-computer applications. Stored in the EPROM of ECG read out by D/A conversion of analog signals displayed on the oscilloscope screen on. Part II The purpose of this experiment is to study a data acquisition system, which uses ECD-51 microprocessor as the center, from the D/A chips, and other various low-frequency signal from EPROM and the simulation of human ECG transform into several discrete signal words into computer mem

8051系列变速器简介

用单片机控制74LS244做的串口通信系统。-74LS244 done with single-chip microcomputer to control the serial communication system.

通过8255查询键值，显示不同的数字。k1显示1，K2显示2，K1和K2显示3,如此类推。最多能显示7。-8,255 inquiries through the keys, show different figures. K1 shows a, K2 showed 2, K1 and K2 showed three, and so forth. The most that can be shown 7.

/************************** 0 1 2 3 4 5 6 7 8 9 . CLR + - = CLR ***************************/ 用键盘扫描,数码管显示实现计算功能,能实现xxx.x任意正数的加减 运算,超过范围显0000,功能键如上-/************************** 0 1 2 3 4 5 6 7 8 9. CLR +- = CLR ***************************/ With keyboard scan, digital tube display of computing power, to achieve any positive xxx.x addition and subtraction Operation, significantly more than the scope of 0000, above function keys

基于8051单片机的遥控电风扇的红外发射源程序-8051-based remote control of the infrared emission source fans

C51中的指针应用之二.rar-C51 target of Application 2. Rar

atmega128 读取18b20并液晶显示-ATmega128 read 18b20 and liquid crystal display

利用单片机arm加sl811芯片实现对u盘读写的控制，代码仅供大家参考，如有不对之处，敬请谅解-Sl811 increase the use of single-chip chip arm of the u disk read and write control code for your reference, if doing so after updating