用arm驱动hp 1020打印机所需要的驱动

可控硅触发特性测试代码，测试可控硅的触发电压触发电流-Characteristics of SCR trigger test code

i2c rtc interfacing in arm

硬盘MP3播放器-MEGA128-VS1001K-USB-遥控-LCD-ICCAVR代码-硬盘-支持FAT32-单面PCB-Hard disk MP3 player-MEGA128-VS1001K-USB-Remote-LCD-ICCAVR code- hard- to support the FAT32-single-sided PCB

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.

arm开发，基于linux环境的一些重要的配置程序。-development arm, for the linux environment of some important configuration procedures.

TS201的C语言程序，开发环境为visual dsp++。该程序是实现音频传输的程序。-TS201 C-language program development environment for visual dsp++. The program is to achieve audio transmission programs.

东南大学开发ARM7芯片sep4020的key+tft程序代码-Southeast University to develop ARM7 chip sep4020 the key+ Tft code

TMS320C54x用于正弦值的计算实现方案报告-TMS320C54x sine value for the calculation of the achievement of program reports

2410在ads1.2下面的nandflash驱动，在写iviv的时候非常的有用，能够实现块编程等功能-2410 in the NANDFLASH ads1.2 the following drive, when writing iviv very useful, able to realize features such as block programming

shell-HHARM9200.rar 华恒 AT91rm9200 中Busybox shell的源代码-shell-HHAT91rm9200.rar, this is the source code of the Busybox shell under HUAHENG AT91rm9200 platform.