15个Altera的IP的源码，嵌入式开发必备

这是一个基于ATMEL的ARM9的原理图,经过本人的修改.-This is a based on the ARM9 ATMEL schematics, I read the amendment.

ARM开发的指导用书，对你有帮助-ARM with the guidance, to help you

本程序主要是是s3c2410关于iic总线对rtc时钟的控制。开发环境是ads1.2-This procedure is the main S3C2410 on the IIC bus on the rtc clock control. Development environment is ads1.2

三洋锁相环IC L72130的收音搜台驱动代码，- Three oceans phase-locks surround IC L72130 the reception to search for the actuation code,

通常我们需要将板上的Flash芯片拆下，用Flash编程器烧写固件程序；这个程序可以通过CCS运行Emu模式直接将程序烧写到flash芯片中。-Usually we need to board the Flash chip removed, Programming with Flash burning device firmware procedures; This procedure can be run through the CCS model Emu directly to the process of burning flash chip.

arm7开发的源代码,经典,适合入门参考-arm7 development of the source code, classic reference for induction

NXP公司LPC23**系列芯片SPI接口驱动示例程序，可发展成完整SPI接口驱动-NXP Corporation LPC23** series chip SPI interface driver sample programs can be developed into a complete SPI interface driver

touch screen driver,it s very good for you if you want to prammer this-touch screen driver, it"s very good for you if you want to prammer this! !

友善之臂电路原理图和库文件，相信对大家开发2440有很大帮组-A friendly arm on the circuit schematic and library file, I believe all of you to help develop a great group of 2440

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.