一种电力行业大功率智能复合开关控制程序,原创的优秀程序,现场运行良好...

三星s3c2410arm thumb指令混合汇编实验源码，对初学者很有好处的-Samsung s3c2410arm thumb instructions mixed-source compilation of experimental, very good for beginners

基于ARM7开发系统的触摸屏校准程序，代码中有详细的中文注释，方便用户移植-ARM7 development system based on the touch screen calibration procedures, a detailed code of the Chinese Notes user-friendly transplantation

ARM 的串行口代码,对ARM串口编程有所帮助。-Serial port of the ARM code, serial programming of ARM help.

DSP编程，用来测试EDMA是否正常运行，基于ti的TMS320C6000平台-DSP programming, used to test whether the normal operation of EDMA, based on the TMS320C6000 platform ti

PXA310 DATASHEET_1, -PXA310 DATASHEET_1, PXA310 DATASHEET_1,

这个是VB写PC与单片机通信程序要用的控件（Mscomm32）-This is a PC to write VB program to use with single-chip control communications (Mscomm32)

PD4NS 颗粒物传感器传感器测试程序，串口输出，低电平时间捕获。

基于linux操作系统ATMELARM9200 开发平台的USB驱动程序开发-ATMELARM9200 operating system based on Linux Development Platform USB Driver Development

AVR 单片机IIC程序 包含启动位，停止位，应答检测，非应答检测，单字节发送，单字节接收，GCC编写，

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.