ATMEL at89c51snd1 do mp3 source code

利用单片机c8051f020由于端口功能很多，需要对端口进行配置。-C8051f020 SCM function as ports, we need the right port setup.

数据采集系统作为沟通模拟域与数字域的必不可少的桥梁有着非常重要的作用。本文介绍的重点是数据采集系统。数据采集与通信控制采用了模块化的设计，数据采集与通信控制采用了单片机8051来实现，硬件部分是以单片机为核心，还包括模-数转换模块，显示模块，和串行接口部分，还有一些简单的外围电路。8路被测电压通过通用ADC0809模-数转换，实现对采集到的数据进行模拟量到数字量的转换，由单片机对数据进行处理，用LCD显示模块来显示所采集的结果，并将数据通过串行口传输到PC机上，MCU与 PC机间的电平匹配采用MAX232接口芯片，由PC机完成数据接收和显示，VB程序编写了更加人性化的人机交互界面。-Data Acquisition System Analog domain as communication with the figure of the indispensable bridge between the domain has a very important role. This article focuses on the introduction of data acquisition system. Control data acquisition and communication of the use of a modular design, data collection and communications control to the use of a 8051 single-chip implementation, the hardware part of the single-chip microcomputer as the core, but also mold- digital conversion module, display module, and serial interface part, have some simple external circuit. 8 road test voltage through the common mode ADC0809- conversion, implementation of the collected data to the digital analog conversion, the

LCD12864，多级菜单例子。Keil建立的工程。-LCD12864, many examples of class menu. Check matrix with simulation software and Protues

把单片机串口通讯改造为SPI通讯接口源程序，使用C51语言编写，可以用于MCS8051单片机-put microcontroller serial communications to transform SPI interface source, the use of C51 language, which can be used Mcs8051 MCU

lcd 与C51 的驱动程序 1、本实验箱采用的液晶显示屏内置控制器为SED1520，点阵为122x32，由两片SED1520组成，由E1、E2分别选通，控制显示屏的左右两半屏。-LCD C51 and a driver, the use of experimental boxes LCD screen embedded controller for SED1520, to 122x32 dot matrix, composed of two SED1520, E1, E2 respectively strobe control screens around two semi-screen.

develop develop develop develop develop develop -develop develop develop develop develop develop develop develop develop develop develop develop

测试LCM模块AVR应用，ICCAVR编译器编辑。-AVR application testing LCM module, ICCAVR compiler editor.

x25045的编程应用（51汇编格式），它具有512字节的EPROM，看门狗，复位信号等，是MCU不错的外围芯片 -x25045 application programming (51 Series format), which has 512 bytes of EPROM, the watchdog, the reset signal is a good external MCU chip

本文件代码的开发环境是keil C，芯片是AT89S52，这是一个如何使用DS18B20温度传感器的例子，从中可以学习如何利用I2C以DS18B20通信。-This document is a code development environment keil C, chip AT89S52, this is a how to use the example of DS18B20 temperature sensor, which can learn how to use I2C to DS18B20 communications.

由SPCE061A控制的A/D转换器AD977的驱动程序-SPCE061A controlled by the A/D converter AD977 drivers