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ISD4004 51单片机驱动程序
本设计是基于单片设计的一个能实现语音存储和回放功能的系统,利用宏晶公司生产的STC90系列单片机作为主控制器,使用具有录音和放音功能的ISD4004语音芯片,能够显示32个字符的LCD1602显示器件和能对音频进行无失真的放大的TDA2822M差分放大器设计而成的。首先我们利用STC90C516RD+单片机的优越的控制性能来控制ISD4004语音芯片,通过单片机向语音芯片发送指令来完成ISD4004芯片的录音和放功能,用LCD1602来显示单片机对ISD4004的操作状态,使用TDA2822M将ISD4004芯片输出的音频进行无失真的放大的思路来进行语音存储和回放系统设计的,用Circuit Design Suite 10.0(Multisim)软件来绘制该系统的电路,用Keil uVision5软件来编写硬件程序。电路图和程序都完成后使用万用洞洞板依据电路图来焊接实物电路,实物完成后载入芯片程序直接进行实物调试,使用实物调试更容易找出问题和系统设计的缺陷,出现问题时可以通过模块化思想轻松查找到故障原因,并进行修复故障。ISD4004芯片录音时基于多电平存储技术实现的没有传统的数字录音过程中A/D转换带来的量化噪音和变色的金属音色。该系统录取的声音播放出来后和原音的音色、音调保持一致不失真。(This design is based on the single chip design of a voice storage and playback system, using STC90 series MCU produced by Hongjing Company as the main controller, using ISD4004 voice chip with recording and playback function, can display 32 characters LCD 1602 display device and can amplify audio without distortion. TDA2822M differential amplifier is designed. Firstly, we use the superior control performance of STC90C516RD + MCU to control the ISD4004 voice chip, send instructions to the voice chip through MCU to complete the recording and playback function of ISD4004 chip, use LCD1602 to display the operation status of MCU to)
- 2018-12-10 23:02:25下载
- 积分:1
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66245
The following Matlab project contains the source code and Matlab examples used for generation of 2d fractal trees.
- 2017-11-10 19:24:54下载
- 积分:1
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Lx
说明: 风特性基本分析,基于泰勒函数简算湍流积分尺度(Simple calculation of the integral scale of turbulence)
- 2018-06-29 17:46:01下载
- 积分:1
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strings3_extremum
说明: 锂电池均衡模型,用于均衡仿真,欢迎新能源行业的朋友使用(welcome download for lithium battery balance)
- 2020-12-13 16:09:15下载
- 积分:1
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MMC最近电平逼近调制仿真
说明: 对基于模块化多电平换流器作为逆变器采用最近电平逼近调制模式时的谐波分量进行分析,选取逆变器上、下桥臂电流,相间环流及交流输出电压波形作为研究 对象,通过理论推导出上、下桥臂电流主要具有直流分量、基波分量及 2 次谐波分量;相 间环流仅含有偶次谐波;交流输出电压波形仅含有奇次谐波。(Based on the analysis of the harmonic components of the modular multilevel converter when the closest level approach modulation mode is adopted as the inverter, the upper and lower bridge arm currents, inter phase circulation and AC output voltage waveforms of the inverter are selected as the research objects, and the current of the upper and lower bridge arm mainly includes DC component, fundamental component and second harmonic component; There are only even harmonics in the inter phase circulating current and odd harmonics in the AC output voltage waveform.)
- 2021-02-17 22:49:45下载
- 积分:1
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spacecraft
航天器的滑模MATLAB程序,内含干扰观测器程序,航天器模型程序(spacecraft sliding mode control based on disturbance)
- 2020-12-30 15:48:59下载
- 积分:1
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内存映射修改大文件.关于数据采集系统中,大数据采集实时,采用的内存技术,很好的文章
内存映射修改大文件.关于数据采集系统中,大数据采集实时,采用的内存技术,很好的文章-Modify memory mapping large files. On the data acquisition system, the data acquisition in real time, using a memory technology, a very good article
- 2022-12-30 17:35:03下载
- 积分:1
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unmakesis Symbian操作系统
UnmakeSis for Symbian OS
- 2023-07-14 20:00:03下载
- 积分:1
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ITSA
说明: ITSA Programing contest
- 2020-01-10 15:46:25下载
- 积分:1
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BufferRing
说明: Buffer Ring Test application
- 2020-02-21 19:23:30下载
- 积分:1