c8051f020键盘程序,是5X6键盘的好用原代码

关于2407的头文件以及一些c语言的例程-2407 on the first document as well as some language routines c

最新的LPC214X USB驱动程序，适用于 NXP LPC2141, LPC2142, LPC2144, LPC2146, LPC2148。-LPC214X USB driver for NXP LPC2141, LPC2142, LPC2144, LPC2146, LPC2148.

56f8300E系列dsp的BOOTloader，呵呵，最新版本-56f8300E series of BOOTloader dsp, huh, the latest version

三星arm内核微处理器44b0的串口调试程序-Samsung arm-core microprocessor 44b0 serial debugger

基于三星44b0的iic的程序，包括基本操作-Based on the IIC Samsung 44b0 procedures, including basic operation

此代码将显示你，如何编写一个简单的项目与中断和定时器。第一，如果你是 Arm4 ti 公司的 new_membie，它将有助于理解用简单的代码。

ARM处理器和FPGA在数据传输中的应用与研究-ARM processor and FPGA data transmission in the Application and Research

STM32 开发板例子:ucOS. 开发环境:Keil For ARM-STM32 development board example: ucOS. Development Environment: Keil For ARM

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.

可以实现年月日时分秒星期等的读取和写入，并使用串口形式以送到电脑上显示。可以适当修改就可移植到其它方面应用，比如结合LCD就可以显示。