KEIL C51，51单片机实现MODBUS从机端

目前市场上有很多语音录放系统，如录放音玩具、录音笔等，大多采用了单片机控制一个语音芯片，再接一个FLASH存储器的结构。单片机可以控制录放时间，选取特定时间段的播放以及单多声道的录放，容易通过改变外接存储FLASH改变录放时间。 我们做的是一个简单模型，只能录放。 只需要录音和放音时的外部 ROSC 端振荡电阻不同就能改变声音的录入和播放速度，录入的时间越短音质越好，录入的时间越长音质越差 它采用模拟量直接存贮技术，因此保真度高，音质好 -Currently on the market there is a lot of voice recording systems, such as sound recording toys, sound recording pens and so on, most of the single-chip microcomputer to control the use of a voice chip, making the structure of a FLASH memory. Single-chip microcomputer can control the playback time, select a specific period of time many of the players, as well as single-channel recording, easy to FLASH memory by changing the external playback time change. We make a simple model, only playback. Required only when the recording and playback-side oscillation of the external resistor ROSC will be able to change different recording and playback of sound speed, the shorter the time of admission, the better sound quality, longer recording sound worse using direct ana

这是一个PCB常用的封装，特别是对于学单片机的同志来说是不可多得的-This is a commonly used PCB package, especially for school comrades Singlechip is rare

这是一个用abel语言编写的步进电机程序-This is a language used abel stepper motor procedures

串口通信程序，该程序实现了串口的基本通信功能。通过串口给单片机发送数据-Serial communication program, the program implements the basic serial communication function. To the microcontroller through the serial port to send data

MSP430仿真器原理图，Msp430仿真器原理图，我做了好使-MSP430 simulator schematics, Msp430 simulator diagram, I have done so

根据示波器的原理最做的代存储和显示的简易装置-oscilloscope under the principle of doing the most generation storage and display of simple devices

电压表仪器测量，实现用VC++调试而成的仪器电压表-The source project is developed with Visual C++6.0, and works for Volt Meter instrument.

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

很强大，很完整的，在单片机控制LED显示屏上玩俄罗斯方块-Very powerful, very complete, in SCM control LED display on the play Tetris ~ ~ ~ ~

< AVR C语言的应用>>第九章中的例子 用ATmega1280 在IAR Embedded Workbench IDE平台编译连接通过的12个程序 -< > Example of the ninth chapter in the ATmega1280 with IAR Embedded Workbench IDE compiler platform to connect through the 12 procedures