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应用背景STM32 STM32 开发板自带了一颗非常强劲的MP3解码芯 片，利用该芯片我们可以实现 MP3/OGG/WMA/WAV/FLAC/AAC/MIDI等各种音频 文件的播放。关键技术本章实验功能简介：开机先检测字库是否存在，如果检测无问题，则对VS1053进行RAM测试和正弦测试，测试完后开始循环播放SD卡MUSIC文件夹里面的歌曲（必须在SD卡根目录建立一个MUSIC文件夹，并存放歌曲在里面），在TFTLCD上显示歌曲名字、播放时间、歌曲总时间、歌曲总数目、当前歌曲的编号等信息。KEY0用于选择下一曲，KEY2用于选择上一曲，WK_UP和KEY1用来调节音量。DS0还是用于指示程序运行状态，DS1用于指示VS1053正在初始化。

FreeRTOS免费的开源实时操作系统 嵌入式操作系统FreeRTOS的原理与实现.pdf-FreeRTOS free open-source real-time operating system embedded operating system FreeRTOS Principle and realize. Pdf

双串口收发多串口收发，单片机间的通信，实现很多的功能-Dual serial multi-transceiver serial port transceiver, single-chip communication to achieve a lot of features

资源描述你能理解串口通信。如何使用调试信息通过UART在atmega128a

系统学习Linux的11点建议，经常在一些论坛上看到人问如何学习Linux，个人感觉这些建议可以让新手少走很多弯路。-learning system Linux 11:00, in some forums often see people ask how to study Linux, personal feeling these recommendations can take fewer newcomers so many detours.

LPC214X各功能模块程序，可直接调用-Functional modules LPC214X procedures, can be directly called

vb与PLC的通讯程序 vb与PLC的通讯程序-vb communication with the PLC program vb communication with the PLC program

terawin的t103 LCD驱动程序，完整版-terawin the t103 LCD driver, a complete version!

TCP/IP 协议栈成功的在S3C44B0X 的实现。我从网上下的所谓在44b0x上运行的tcpip程序其实都是不能运行的，包括LWIP在44b0x代码。这个是我自己根据下载的代码经过努力的修改和调试得到的，程序稳定，TCP UDP ICMP web都得到很好的实现。os是UCOS-II.程序包里面有详细的程序演示说明-TCP/IP protocol stack S3C44B0X successfully realized. I am from the Internet under the so-called 44b0x running tcpip procedures are actually not running, including lwIP in 44b0x code. This is my own code under the download through efforts to modify and debug obtained, procedures stability, TCP UDP ICMP web have been very good to achieve. os is UCOS-II. package there are detailed procedures Demo Description

本程序介绍了基于NIOSii的串口接收程序-This procedure based on the introduction of the serial receive procedure NIOSii