这是一个简单的mcs

芯片PCF8951共有四个A/D输入通道：AD0，AD1，AD2，AD3,分别与四个电位器(R1,R2,R3,R4)连接，用以调节电位器的输出电压。其中AD0通道既可测量电位器输出电压，也可用于测量从J1插座输入的外接电压，须用开关J2加以选择。J4插座提供由PCF8591输出的时钟方波信号。SAA1064驱动四个数码管显示一路AD转换后得到的数据。-PCF8951 chip, there are four A/D input channels: AD0, AD1, AD2, AD3, respectively, with four potentiometers (R1, R2, R3, R4) connected to regulate the output voltage potential. AD0 channel which can be measured potentiometer output voltage can also be used to measure the input from the J1 socket external voltage, to be used to select switch J2. J4 socket output from the PCF8591 clock square wave signal. SAA1064 drivers of four digital display along after AD conversion data.

此文档是我生产实习的源码，开发环境是Keil51,使用的控制CPU是华邦系列单片机，功能是实现恒温箱的交互控制-This document is my internship source code, the development environment is Keil51, control the use of the CPU is Winbond series microcontroller, is functional incubators of interactive control

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1-Features: 1, as under the 8255-bit machine data collection and communications sent through this data, 2, collected data for the BCD, first converted into binary, and then converted to deal with BCD 3, communication using methods 3, multi-machine communication, PC-fat address TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1

这是一个比较好的可调整时钟程序，大家来-This is a good procedure to adjust the clock, we come and see us!

插在usb上使用的声卡的原理图,器件少,简单实用

在单片机编程中位图及字库点阵提取程序源代码- The position chart and the fonts lattice withdraw the procedure source code in the monolithic integrated circuit programming

64*16点阵，内有proteus仿真，芯片资料，protel原理图，pcb图。-64* 16 lattice, which has Proteus simulation, chip information, protel schematic, pcb Fig.

在达盛实验箱下的lcd单片机显示，两行国标汉字，爱好者可以好好学习一下-Tat Shing lcd under experimental single-chip boxes show two lines of Chinese characters GB, fans can learn about

Ad9959源代码，包含各个引脚的功能图-AD9959，yudaima.baohajhjkj

SENSE 的一款Hart温度变送器的上位机操作界面，有中英文切换的功能，做Hart仪表的可以参考哦-SENSE of a temperature transmitter Hart PC interface, and switching functions in both English and Chinese, make Hart instrument can refer Oh