范文编号:JD217 字数:13190,页数:48 摘 要 本文首先对MP3播放器的组成和原理进行了详细的解说,然后对目前流行的MP3播放器硬方案做对比。经分析后,认为采用美国ATMEL公司生产的AT89C51SND1C芯片为主控制器,三星公司的闪存芯片K9F5608为外部存储器,CS4330作D/A转换的方按是最好的方案。AT89C51SND1C是带MP3解码器的基于51内核的单片机。此方案最大的优势是电路较简单,只要3个芯片。以此方案为例,详细介绍了MP3播放器硬件电路的设计和系统软件设计,并对软件设计进行深入分析,提高软件运行效率。用Keil uVision 来编程。编程语言选用高效的C51语言。最后还介绍MP3播放器的调试软件及调试方法。AT89C51SND1C内置64Kbyte FLASH ROM,它可以重复擦写10万次。通过AT89C51SND1C的USB接口下载固件,下载固件速度很快。下载软件为FLIP,ATMEL公司免费发放此软件。 关键词:MP3播放器;K9F5608;AT89C51SND1C;C51语言
This text carries on the detailed comment to the composition and principle of MP3 player at first, then compare the present popular hard scheme of MP3 player. After analyzing , think that use the AT89C51SND1C chip that ATMEL Company produces as a master controller , flash memory chip of Samsung K9F5608 as memory, CS4330 for D/A is the best scheme. AT89C51SND1C is a 51core MCU that implement a MP3 decoding machine. This biggest advantage of scheme is that the circuit is relatively simple, only 3 chips. Take this scheme as an example , has introduced the design of the hardware circuit of MP3 player and systematic software design in detail , and carry on in-depth analysis to software design , improve the operational efficiency of the software. Programming software is the Keil uVision . The programming language selects high-efficient C51 language. Introduce the debugging software of MP3 player and debug the method finally. Built-in 64Kbyte FLASH ROM of AT89C51SND1C, it can wipe repeatedly and write 100,000 times. Downloading the firmware through the USB interface of AT89C51SND1C, it is very fast to download the firmware. The download software is FLIP, ATMEL Company grants software free. Keywords: FLASH;AT89C51SND1C;MP3;C51 ì 目 录
|
上一篇:基于MATLAB的数字滤波器优化设计 | 下一篇:基于光纤的汽车CAN总线研究 |
点击查看关于 基于 AT89C51SND1C MP3播放器 的相关范文题目 | 【返回顶部】 |