UART0 LPC1768代码发送线路或获取行

STM32 MP3 播放的实现代码，可以在开发板上直接运行，使用方便快捷，具体内容请看代码，具体使用方法可以参考文章http://www.openedv.com/posts/list/36595.htm。

arm+mmu详细图解 linux + arm + mmu 初学者比较有用-arm+ mmu detailed diagram linux+ arm+ mmu more useful for beginners

ARM cortex-M3系列处理器的代码，包括正交编码器接口QEI、中断控制Interrupt、硬件类型定义hw_types。（IAR环境工程）-ARM cortex-M3 family of processors code, including quadrature encoder interface, QEI, interrupt control Interrupt, the hardware type definition hw_types. (IAR Environmental Engineering)

这是一个不到2000行的操作系统，巧妙地利用ARM9 CPU的内存管理单元(MMU)实现进程的切换。ARM9的4G虚拟地址可分成128个进程空间，每个32M。虽然它们的虚拟地址(VA)都是0-(32M-1)，但是对应的MVA(Modified vitual address,由虚拟地址VA和进程号PID组合而来)不一样，设置MVA对应的页表指向不同物理地址就可以很方便地让各进程运行空间相互隔开。代码很少，注释丰富，希望能对想理解操作系统、了解ARM体系结构的朋友有所帮助。 -This is a trip of less than 2000 operating system, cleverly using ARM9 CPU memory management unit (MMU) to achieve the switching process. ARM9 4G virtual address can be divided into 128 process space, each 32M. While their virtual address (VA) are 0- (32M-1), but the corresponding MVA (Modified Virtual address, and by the virtual address VA and the process of portfolio from PID) not the same, set MVA corresponding page table at the different physical address can be very easy to let the the process of separating the mutual operation of space. Code rarely Notes rich, in hopes of understanding the operating system, understanding the ARM architecture friends help.

该文档讲述了stm32f10x系列中LIB库中的外设，很好的资料。-This document describes stm32f10x series in the peripheral LIB library, very good information.

SST25VF016B是一款外部flash芯片，通过C51单片机控制SST25VF016B的读写。程序结构非常号，容易理解-SST25VF016B is an external flash chip SST25VF016B through the C51 single-chip microcomputer to control the read and write. Procedures for its structure, easy to understand

C51单片机驱动a3972步进电机细分，同时可以控制步电机加速，减速-C51 single-chip stepper motor driver a3972 broken down step-by-step motor can be controlled simultaneously to speed up, slow down

扬创s3c2440 LED测试代码,很有参考价值!-Yang Chong s3c2440 LED test code, a good reference!

S3C44B0X芯片引导程序，简单易懂，TFTP下载并使用ads运行。

这是一套关于ARM开发的培训教程的PPT文档.-This is a set of ARM development of training curricula of the PPT document.