ARM（Advanced RISC Machines）是微处理器行业的一家知名企业。设计了大量高性能、廉价、耗能低的RISC处理器、相关技术及软件。1985年，第一个ARM原型在英国剑桥诞生。ARM公司的特点是只设计芯片，而不生产。ARM将其技术授权给世界上许多著名的半导体、软件和OEM厂商，每个厂商得到的都是一套独一无二的ARM相关技术及服务。利用这种合伙关系，ARM很快成为许多全球性RISC标准的缔造者。
ARM (RISC Machines Advanced) is a well-known enterprise in the microprocessor industry. A large number of high performance, low cost, low energy consumption of RISC processor, related technologies and software are designed. In 1985, the first ARM prototype was born in Cambridge, England. ARM company is characterized by the design of the chip, but not the production. ARM will be its technology authorized to many of the world s leading semiconductor, software and OEM vendors, each vendor is a unique set of ARM related technologies and services. With this partnership, ARM quickly became the founder of many global RISC standard. (2015-12-28, Visual C++, 144KB, 下载1次)
企业生产物料控制。MPS是确定每一具体的最终产品在每一具体时间段内生产数量的计划。这里的最终产品是指对于企业来说最终完成、要出厂的完成品，它要具体到产品的品种、型号。这里的具体时间段，通常是以周为单位，在有些情况下，也可以是日、旬、月。主生产计划详细规定生产什么、什么时段应该产出，它是独立需求计划。主生产计划根据客户合同和市场预测，把经营计划或生产大纲中的产品系列具体化，使之成为展开物料需求计划的主要依据，起到了从综合计划向具体计划过渡的承上启下作用。
Production material control。MPS is to determine the final product of each specific plan production quantities in each specific period of time. The final product is for enterprises eventually completed, the finished goods to the factory, it should be specific to the product varieties, models. Here specific time period, usually in units of weeks, in some cases, and may be a date, ten days, months. Master production schedule specifies what is produced, what period of time should be the output, it is independent of demand planning. Master production schedule according to customer contracts and market forecasts, the product line in the business plan or the production outline concrete, so that the main basis to expand the material requirements planning, play the role of a comprehensive plan for the transition to the specific plans nexus.
(2012-12-20, PPT, 744KB, 下载5次)
LM3S615 微控制器包含以下的产品特性：
32 位RISC 性能
－ 采用为小型嵌入式应用方案而优化的32 位ARM® CortexTM M3 v7M 结构
－ 可兼容Thumb® 的Thumb-2 专用指令集处理器内核，可提高代码密度
－ 50-MHz 工作频率
－ 硬件除法和单周期乘法
－ 集成了嵌套向量中断控制器（NVIC）以提供明确的中断处理
－ 29 个中断，带8 个优先级
－ 存储器保护单元（MPU）为受保护的操作系统功能提供了一种特权模式
－ 非对齐式的数据访问，使数据可以有效地压入内存
－ 极细微的位元处理操作(atomic bit-banding)可最大限度地使用内存，并且提供
精简（streamlined）的外设控制
LM3S615 micro controller contains the following characteristics:
32 位RISC 性能
-the embedded application scheme for the small and the optimization of the 32-bit ARM ® CortexTM M3 v7M structure
-compatible with the Thumb ® Thumb-2 special instruction set processor core, can improve the code density
-50-MHz working frequency
-hardware division and single cycle the multiplication
-integrated nested vector interrupt controller (NVIC) to provide clear interrupt handling
-29 interrupt, with eight priority
-memory protection unit (MPU) for protected operating system function provides a privilege mode
-the alignment of the type data access, so that data can be effective pressure into memory
-extremely slight bit processing operation (atomic bit-banding) can maximum use of memory, and to provide
Streamline (streamlined) control of peripherals
(2011-12-29, Visual C++, 2081KB, 下载5次)
嵌入式
一个嵌入式系统装置一般都由嵌入式计算机系统和执行装置组成，嵌入式计算机系统是整个嵌入式系统的核心，由硬件层、中间层、系统软件层和应用软件层组成。执行装置也称为被控对象，它可以接受嵌入式计算机系统发出的控制命令，执行所规定的操作或任务。执行装置可以很简单，如手机上的一个微小型的电机，当手机处于震动接收状态时打开；也可以很复杂，如SONY 智能机器狗，上面集成了多个微小型控制电机和多种传感器，从而可以执行各种复杂的动作和感受各种状态信息。
Embedded system (2011-06-04, C++, 101KB, 下载6次)
分析了噪声背景下实谐波过程ARMA模型系数之间的对称性,并以此为约束条件加入ARMA谱估计方法的求解过程中,从而提出了一种改进的正弦信号频率估计方法.理论分析与计算机仿真表明,对于低信噪比条件下的正弦信号参量估计,这一算法的精度与稳定性都优于仅使用总体最小二乘法(SVD-TLS)的ARMA谱估计方法.
Analysis of real harmonic process noise background symmetry between ARMA model coefficients, and as a constraint to join ARMA spectral estimation method solving process, and thus an improved method of sinusoidal frequency estimation. Theoretical analysis and Computer simulations show that under conditions of low SNR for sinusoidal signal parameter estimation, precision and stability of this algorithm are superior to only using total least squares method (SVD-TLS) for ARMA spectrum estimation methods. (2010-11-12, matlab, 37KB, 下载60次)
SD卡有两个可选的通讯协议：SD模式和SPI模式。SD模式是SD卡标准的读写方式，但是在选用SD模式时，往往需要选择带有SD卡控制器接口的MCU，或者必须加入额外的SD卡控制单元以支持SD卡的读写。然而，AT89C52单片机没有集成SD卡控制器接口，若选用SD模式通讯就无形中增加了产品的硬件成本。在SD卡数据读写时间要求不是很严格的情况下，选用SPI模式可以说是一种最佳的解决方案。因为在SPI模式下，通过四条线就可以完成所有的数据交换，并且目前市场上很多MCU都集成有现成的SPI接口电路，采用SPI模式对SD卡进行读写操作可大大简化硬件电路的设计。
There are two optional SD card communication protocols: SD mode and SPI mode. SD model is a standard SD card reading and writing, but in the selection of SD mode, often need to select the SD card controller interface with MCU, or SD card to join the additional control unit to support the SD card reader. However, AT89C52 microcontroller is not integrated SD card controller interface to SD mode if the selected communication would in effect increase the cost of hardware products. The time to read and write data in SD card is not very demanding circumstances, the use SPI mode can say is the best solution. SPI, mode because, by four lines on all the data can be exchanged, and Du Mu Qian Ji Cheng MCU market, there are many existing SPI interface circuit using SPI mode on the SD card reader can be greatly Jianhua Cao Zuo hardware design. (2010-04-22, Visual C++, 35KB, 下载91次)
整理好的最全的S3C2440中文资料，包含18章节。如下：第1章 产品概述
第2章 处理器工作模式
第5章 内存控制器
第6章 Nand Flash控制器
第7章 时钟与电源管理
第8章 直接存储器存取
第10章 PWM及定时器
第11章 UART
第14章 中断控制器
第16章 ADC和触摸屏接口
第17章 实时时钟
第18章 看门狗定时器
第19章 MMC/SD/SDIO控制器
第20章 IIC总线接口
第21章 IIS总线接口
第22章 SPI（串行外围设备接口）
第24章 AC97控制器。
网上一般只能找到四五章节。
Finishing S3C2440 good most of the Chinese data, contains 18 chapters. As follows: Chapter 1 Product Overview Chapter 2 processor mode Chapter 5 Memory Controller Chapter 6 Nand Flash controller clock Chapter 7 and Chapter 8 Power Management direct memory access and Chapter 10 PWM timer section 11 Chapter 14 Chapter UART interrupt controller Chapter 16 ADC and touch screen interface Chapter 17 Real Time Clock Chapter 18 Watchdog Timer Chapter 19 MMC/SD/SDIO controller Chapter 20 IIC Bus Interface IIS total Chapter 21 Chapter 22 line interface SPI (serial peripheral interface) Chapter 24 AC97 controller. Internet in general can only find four or five chapters. (2009-07-03, C/C++, 4258KB, 下载238次)
这是三星公司推出的arm9芯片s3c2410的中文手册，这可是难得的芯片资料，我花了好多时间才搜集到一起的。
This is the introduction of ARM9 Samsung S3C2410 chip Chinese Manual, it is rare chip information, I have spent a lot of time to gather together. (2008-11-23, Visual C++, 2711KB, 下载414次)
碟机Search流程说明
Search过程中，主要涉及到的问题是Search(搜索) 和Match（匹配），其目的就是能够准确地给光头定位。如果匹配才算是成功的？要跳转多少个Track（信迹）才能到目的位置，以及这些跳转指令又是如何？等等诸如此类的问题都将该文档中有详细的解释说明。在koala这个项目中，当 Servo不在做顺序读取，而因为某些特定目的要求需要做跳转读取，这时就需要用到Search功能，快速跳转至指定位置读取数据。比如说歌曲跳转，当播放完前一首歌时，开始播放下一首歌时，必须快速将光头移至该首歌的开始数据位置，但因为前后两首歌的数据地址可能不是连续的，这就需要根据前后两首歌的地址差值进行Search动作。
writers note Search Search Process process, mainly related to the issue of Search (search) and Match (matching), Its purpose is to be able to accurately positioning skinheads. If the match is considered successful? Jump to the number of Track (trace letters) to get to the location, and these instructions are Jump? Etc. If these problems have all documentation for a detailed explanation. Koala in the project, when the order Servo do not read, And because they require specific purposes needs to be done Jump read, it is necessary used Search function, Quick Jump to the designated location to read data. For example, Jump songs, when players completed before a song, start playing the next song. Bald will be rapidly moved to the beginning of the song data location, But after two songs address th (2007-03-29, Visual C++, 32KB, 下载14次)