基于STM32F4的实时时钟设计

atmel工业级芯片手册，虽然过时，但是很实用，非常稳定。内置512k RAM。-Atmel chip industrial grade manual, although outdated, but very practical, very stable. Built-512k RAM.

三星4510开发板Sdns100上代的演示程序-development board Sdns100 Not only the demo program

"see mips run"是一本非常经典的学习mips结构的资料，最新中文版。-" see mips run" is a very classic study mips structure of information and the latest Chinese version.

4510b的启动源码-4510b start FOSS

2410开发板配套实验程序第一集，请下载使用-2410 development board supporting experimental procedure the first episode, please download

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.

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单片机控制下的电子钟实验程序。适用于初学者。-Single-chip electronic bell under the control of experimental procedures. Applicable to beginners.

arm　s3c44b0x 的uart程序源码-arm s3c44b0x uart procedure source code

STM32是以Cortex-M3为核的处理器，该例程介绍STM32下如何控制电源管理系统。STM32的一个最大特点是低功耗。-Cortex-M3 based STM32-core processor for the routine introduction STM32 how to control power management system. STM32 is characterized by one of the greatest low power.