基于S3C2410的嵌入式网关的设计与研究
基于S3C2410芯片的嵌入式Linux系统开发环境设计与实现说明书
6th International Conference on Mechatronics, Materials, Biotechnology and Environment (ICMMBE 2016) Design and Implementation of Embedded LINUX System DevelopmentEnvironment based on S3C2410 ChipXiufang Zhang1, a1 Xi'an Eurasia University, Xi'an, Shaanxi, 710065a emailKeywords:S3C2410 Chip; Embedded; LINUX System DevelopmentAbstract. With the continuous development of China's science and technology, improve people's living standards in the field of electronic information have been developed, especially for the development of S3C2410 chip embedded LINUX system, but also get a lot of attention of enterprises, the following analysis of the development environment process design, to achieve the above, hoping to promote the development of this area, to improve the level of technology in this area.IntroductionIt is no stranger to computers and networks, and their lives are closely linked, with the combination of network technology and computer technology, it is entered into the P C era. In the research and development of embedded systems become the focus of development. Here's to the embedded linux operating system, and Samsung's S3C2410 embedded processor chip, for example, detailed analysis of its design, lay the foundation for future work.Related Part of Embedded SystemsIn a computer system, the host is the main hardware platform, in addition, also constituted by a number of peripheral devices, the computer functions to be accomplished is very strong, so the processor computing speed must be fast, but is separate from the processor and other parts Designed. The embedded processor is the core component of embedded systems, the use of paper S3C2410 embedded processor chip, which not only low energy consumption, and overall performance, low price, low-cost, low-power embedded systems is very good, in addition, there is an embedded software systems.Design and Implementation of Analysis S3C2410 Chip Embedded LINUX System Development EnvironmentFor embedded systems, their systems have a cross-development environment, when established will be used to host / target mode. To facilitate understanding, the following special drawings, reference analysis. For the host, refers to a general-purpose computer system, daily use of PC machine, said here the target development board, embedded system software last program run hardware environment, the host with Ethernet interface, or a string line port [1], it can be done and the target normal communication. For embedded development, it requires the host has a good development environment, so it can perform normal editing and debugging simulation for design work on the software. On this basis, after completion of compiled code, use the Ethernet interface, or a serial port can be decoded are transferred to the target machine, then use after cross debugger, the content analysis and debugging, and finally in a particular environment next, to complete the commissioning program run. CPU used in a computer system [2], are normally developed by Intel Corporation x86 series CPU, but the software needs of embedded operating environment is different, it uses chips are usually PowerPC, DragonBall, MIPS, ARM series, is a micro-processor. In operation, in order for it can be embedded in the hardware environment compiled execution. You should first establish a cross-development environment, and then use cross-developmentenvironment, its effective links and cross-compilation.Figure 1: Embedded Linux cross-development environment Take the arm-linux-gcc example for analysis, which is a source code that can be developed in linux operating system, and then can be compiled into binary code, such code can run on ARM architecture, but also belong to a species cross-compiler. Under normal circumstances all embedded microprocessor, its corresponding embedded system, not a single corresponding to a cross-compiler. In use, you can use the familiar cross-compiler. The computer system will be the preparation of their good [3], then this embedded software after cross-linked to form a new file, which is a binary file, you will be able to run on embedded hardware environment.Among the computer system, the boot program mainly involves two aspects, first, a resource allocation procedure, which solidified in the BIOS, and on the other hand, the extent of which is a guide, in which different boot drive, the embedded in terms of systematic and scientific personnel in order to simplify the hardware architecture, the CPU is embedded not only in curing initiator hardware platforms, many of them embedded hardware platform, do not provide start the program, and therefore its development process, first programming embedded hardware platform boot program. So this level is also known as BootLoader [4]. The section of the program is actually in front of a computer system, run the short main program, run this small program, and its role is very large, the memory space map can be established, the hardware device may be initialized, and then the system hardware and software environment to a proper state, to facilitate future system kernel debugging, it is ready to run needed the right environment. For now, Bootloader used by the program are the following, for example Redhat company developed Redboot program, developed from PPCBoot the U-Boot, and Compaq developed the Bootldr etc., not one will be described. For one of the boot program, the South Korean company developed a Mizi Vivi, which Bootloader is a program that can support S3C2410 processor. In this study, we analyze the S3C2410 processor, so by supporting the boot program uses Vivi. In the application process, we need to Mizi company VIVI guide members download the source code, and then modify the Makefile, on this basis, the operator should also establish a board support package, the rational allocation of development board. After completion of the above-mentioned aspects of the operation of head.s file effectively modified, but it is noteworthy that we must distinguish Nor Falsh and Nand Flash [5], then VIVI recompile the source code allowed to meet the binaries demand, the final step is to carry out programming.For Linux kernel porting, is to determine the specific embedded target platforms, it must effectively streamline Linux, and then mounted to the target platform, on this basis, should also be able to ensure its proper operation. The basic contents include the following items, following specific elaborate. First step, get a version of the Linux kernel source. The second step, combined with the objectives set before the platform, effectively streamlining the source, the main content of the work and structure of the system is to be modified, and then add the drives designed to meet a target platform of the new operating system. After the third step operation, cross-compile target platform for this system, so that it can generate a kernel image file. The fourth step, the image files obtained as described above, in strict accordance with the requirements of programming, can be installed after the completion of the target platform, and then use. Before programming the kernel, the operating system must be streamlined to do, if there are unwanted kernel may well be removed, to avoid system space is occupied, improve the efficiency of system operation and improve system storage space. After completing the streamlining of operations, designers also need to be recompiled, this will work out a new file, the file system used to meet our compressed kernel image file zImage.In the case of the above steps are operating without problems, you can transplant the Linux kernel programming, and ensure the quality of programming.For Linux, the use of the file system organization system in which documents and equipment to provide a uniform interface to the device, and the user program. In addition, it also supports J F F S 2 .RAMDISK, C R A M F S and many other file systems, when using the system, which can YAFFS2 root file system to read and write. For the root file system, which includes a lot of content, for example, the Linux operating system, and it needs at startup directory, key files. Here's an example, if you want to start Linux, will certainly use in the init file to a directory, if the operating system to mount a different partition, then the process is running, you must use the etc / fstab directory mount the file, all of the Linux operating system involved, during the startup process, used to file or directory, the technician can call it Linux system's root file system. For YAFFS2 file system, when the system is running, which can support NAND FLASH, and JFFS there are many similarities, and its role is to design embedded file system. But the Linux operating system and JFFS compared to the reduced part of the function, the operator can be found in actual use, the operating speed of the system is faster and uses less memory.ConclusionThrough the above design and realization of S3C2410 chip embedded LINUX system development environment analysis, analysis of some of its components, to understand the function of the boot program, in addition, also on the embedded linux operating system YAFFS2 file system, Linux kernel porting method carried out a detailed analysis in this regard so that the operator has an overall understanding, reducing the threshold arm embedded development application, promote the development of this technology in the future development, with the related art enhance national attention in this regard, it must be a better development.References[1] Zhu Xiaojun, Zhang Zhibin, Liu Huipeng. realization S3C2410 chip embedded linux systemdevelopment environment based design [J]. Automation and Instrumentation, 2012 (01): 112-113.[2] Zangjin Mei, Tao Xun, Hu Yunling. Realization based S3C2410 embedded Linux developmentenvironment [J]. Chinese e-commerce, 2012 (22): 49-49.[3] Zhu Xiaojun, Zhang Zhibin, Qu Chaocheng. Based design of embedded automotive GPSpositioning system S3C2410 chip [J]. Automation and Instrumentation, 2012 (02): 64-65. [4] Guo Guangming. Design S3C2410A embedded remote video monitoring system [J]. Scienceand Technology Management Research, 2010, 30 (14): 233-235.[5] Xu Min. design S3C2410 embedded video monitoring system [J]. Computer Knowledge andTechnology, 2014 (8): 1802-1803.。
基于S3C2410X处理器的嵌入式应用系统设计共109页文档
31、园日涉以成趣，门虽设而常关。 32、鼓腹无所思。朝起暮归眠。 33、倾壶绝余沥，窥灶不见烟。
34、春秋满四泽，夏云多奇峰，秋月 扬明辉 ，冬岭识就是财富 ❖ 丰富你的人生
71、既然我已经踏上这条道路，那么，任何东西都不应妨碍我沿着这条路走下去。——康德 72、家庭成为快乐的种子在外也不致成为障碍物但在旅行之际却是夜间的伴侣。——西塞罗 73、坚持意志伟大的事业需要始终不渝的精神。——伏尔泰 74、路漫漫其修道远，吾将上下而求索。——屈原 75、内外相应，言行相称。——韩非
基于S3C2410的嵌入式网络接口设计
蔡树 向 张 丹
Ｃａｉ Ｓｈ ｘｉ ｇ Ｚｈ ｇ ｕ ａｎ ａｎ Ｄａ ｎ
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Ｐ ｃ时代 多 出成百上 千倍 的瘦 服务 器 和超 级嵌入 式 瘦服 务
图一
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在 嵌入式 系统 中增加 以太网接 口，通常 由如 下两种方
法 实现。第一种 方法采 用带有 以太 网接 口的嵌入 式处理器 ； 另一种方法采用嵌入式处理 器 ＋ 网卡芯 片结构 。本设计 采
网络 接 口原 理 图
Ｃ ８ ０ Ａ有两 种数 据传 输模 式 ： Ｓ９０ 一种 是 ＩＯ模式 ； ｉ 一种 是 Ｍ ｍ ｒ 模式 。 了提高硬件设计 的通用性。 ｅｏｙ 为 本设计兼顾 了
ｌ ａｒｌ ｉ ｉ ｙ ｎｄ ｃａｔ ｎｅｔ ｏｒ ｉ ｅｓ ｗ ｋ ｎｔｅ ｆａ ｃ ｒｃｕ ｔ ｎｄ ｈｅ ｗｏ ｒ ｃｅ ｉ ｉ ａ ｔ ｒｋｉ ｇ ｎ ｐｒ ｅｓ ｏ ｃｏ ｒｏ ｓｏ ｔｗ ｅ． ｏｃ ｓ ｆ ｎｔ ｌ ｆ ａｒ
Ｋ ｙ ｏｄ ：￥Ｃ ４ ０ Ｃ ／ Ｐ ｅｗ ｒ ｎ ｅ ｆ ｃ ；Ｅ ｈｒ ｅ ｏ ｔ ｏ ｌ ｒ ｅ ｗ ｒｓ ３ ２ １ ；Ｔ ｅ Ｉ ；Ｎ ｔ ｏ ｋ Ｉ ｔｒ ａ ｅ ｔ ｅ ｎ ｔ Ｃｎ ｒ ｌ ｅ
第4章 基于S3C2410的系统设计1
1） PWM（脉宽调制）概念
PWM（脉宽调制）：就是只对一方波序列信号的占 空比按照要求进行调制，而不改变方波信号的其它参 数，即不改变幅度和周期，因此脉宽调制信号的产生 和传输，都是数字式的。 用脉宽调制技术可以实现模拟信号：如果调制信 号的频率远远大于信号接受者的分辨率，则接收者获 得的是信号的平均效果，不能感知数字信号的0和1， 其信号大小的平均值与信号的占空比有关，信号的占 空比越大，平均信号越强，其平均值与占空比成正比。 只要带宽足够（频率足够高或周期足够短），任何模 拟信号都可以使用PWM 来实现。 PWM技术的应用：借助于微处理器，使用脉宽调制 方法实现模拟信号是一种非常有效的技术，广泛应用 在从测量、通信到功率控制与变换的许多领域中。
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五、电源管理
2410的电源管理模块通过软件控制系统时钟 来降低各个模块的电源消耗。这些方案与 PLL,时钟控制逻辑(FCLK,HCLK,PCLK), 以 及唤醒信号相关。 2410有4 种电源模式，各个模式并不能自由 转换，有条件。
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五、电源管理
4 种电源模式
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六、相关寄存器
锁定时间计数寄存器（LOCKTIME） 锁相环控制寄存器(MPLLCON&UPLLCON) 时钟控制寄存器(CLKCON) 时钟减慢控制寄存器(CLKSLOW) 时钟分频控制寄存器(CLKDIVN)
0x0
0x00 0x00 0x0
本表6个寄存器：为报警日期、时间寄存器
Register ALMSEC ALMMIN ALMDAY Address R/W Description 报警秒数寄存器 报警分钟数寄存器 报警小时数寄存器 Reset Value 0x00 0x00 0x00
基于S3C2410X处理器的嵌入式应用系统设计共109页文档
11、获得的成功越大，就越令人高兴 。野心 是使人 勤奋的 原因， 节制使 人枯萎 。 12、不问收获，只问耕耘。如同种树 ，先有 根茎， 再有枝 叶，尔 后花实 ，好好 劳动， 不要想 太多， 那样只 会使人 胆孝懒 惰，因 为不实 践，甚 至不接 触社会 ，难道 你是野 人。(名 言网) 13、不怕，不悔(虽然只有四个字，但 常看常 新。 14、我在心里默默地为每一个人祝福 。我爱 自己， 我用清 洁与节 制来珍 惜我的 身体， 我用智 慧和知 识充实 我的头 脑。 15、这世上的一切都借希望而完成。 农夫不 会播下 一粒玉 米，如 果他不 曾希望 它长成 种籽； 单身汉 不会娶 妻，如 果他不 曾希望 有小孩 ；商人 或手艺 人不会 工作， 如果他 不曾希 望因此 而有收 益。-- 马钉路 德。
43、重复别人所说的话，只需要教育； 而要挑战别人所说的话，则需要头脑。—— 玛丽·佩蒂博恩·普尔
44、卓越的人一大优点是：在不利与艰 难的遭遇里百折不饶。——贝多芬
45、自己的饭量自己知道。——苏联
41、学问是异常珍贵的东西，从任何源泉ຫໍສະໝຸດ 收都不可耻。——阿卜·日·法拉兹
42、只有在人群中间，才能认识自 己。——德国
基于S3C2410A的嵌入式网络通信系统设计与实现
ｐｒ ｏ ｔｅｃ ｃ ｉｄ ｇａ ｆｈｓ ｙｔ ａ ｆ ｈ ｉ ｕｔ ｉ ｒｍ ｏ ｉ ｓｓ ｍ．Ｆ ｒ ｅｍ ｒ，ｈ ｅｉ ｆ ｔＥ ｂ ｄｅ ｒｇａ ｅＡ Ｍ—ｉ ｘｏｅａｏ ｓ ｔ ｒ ａ ｔ ｅ ｕ ｈｒ ｏｅ ｔｅｄｓ ｎｏ ／ ｍ ｅｄｄｐｏｒ ｉ ｔ Ｒ Ｌｎ ｐｒｔ ｎｓ — ｔ ｇ Ｑ ｍ ｎｈ ｕ ｉ ｙ
Ｋ ｙｗ ｒｓ ￥ ４０ ｅ ｂ ｄｅ ｙｔｍ；Ａ Ｍ—ｉｕ ； ｔＥ ｅｄ ｄ ｓｃｅ ｃｍ ｕ ｉａｏ ｅ ｏｄ ：３ ２ Ａ； ｍ ｅｄｄｓｓ Ｃ １ ｅ Ｒ Ｌｎｘ Ｑ／ ｍｂｄ ｅ ； ｏｋｔ ｏ ｍ ｎ ｔ ｎ ｃｉ
嵌入式 系统是指 将应用程序 、 操作系统与计算机硬 件集成 在一起 的系统 。它以应用 为 中心 、 以计 算机 技术 为基础 ， 硬 软 件可 以裁减 ， 能满足 应用系统 对功 能 、 是 可靠 性 、 成本 、 体积 和 功耗的严格要 求 的专 用计算 机 系统 … 。嵌入 式 系统 与通 信 、 网络技术的结合可 以极大地增 强网络 的智能化 与灵活性 ， 展 拓 通信功能 ， 而 实现各 种 通信 系统 之 间 的互连 互 通。可 以 预 从 言， 嵌入式设备 与网络通信的结合代表着嵌 入式系统和 网络技
式 网络 通信 系统 ， 出 了系统 的 电路 设 计 方 法 。 重 点介 绍 了 系统 在 Ａ Ｍ— ｉｕ 给 Ｒ Ｌｎ ｘ嵌 入 式 操 作 系统 环境 下 ， 实现 ｓｃ ｅ 通信 的 Ｑ／ ｍｂ ｄ ｅ 用程 序 的设 计 方法 ， ｏｋ ｔ ｔＥ ｅ ｄ ｄ应 并给 出 了部 分源代 码 。采 用此 方案设 计 的嵌入 式 网络 通信 系
基 于 ￥ Ｃ ４ ０ 的嵌 入 式 网络 通 信 系统 设 计 与 实现 术 ３ ２ １Ａ
第7章_基于S3C2410的嵌入式系统硬件设计
第7章 基于S3C2410的系统硬件设计
存储器映射
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第7章 基于S3C2410的系统硬件设计
7.2.3 存储器控制器
bank 6和bank 7地址
注：bank 6和bank 7必须具有相同的存储器大小。
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第7章 基于S3C2410的系统硬件设计
7.2.4 NOR Flash 接口电路
NOR Flash存储器Am29LV160D
4.标准存储卡（Compact Flash，CF卡） 5.安全数据卡（Secure Digital Card，SD卡） 6.硬盘存储器
15
第7章 基于S3C2410的系统硬件设计
7.2.3 存储器控制器
S3C2410A的存储器控制器提供访问外部存储器所需 要的存储器控制信号。 特性
支持小/大端（通过软件选择） 地址空间：每bank有128M字节（总共有8个banks，共1G字节 ） 除bank0（只能是16/32位宽）之外，其他bank都具有可编程 的访问大小（可以是8/16/32位宽） 总共有8个存储器banks（bank0~bank7） 其中6个banks用于ROM，SRAM等 剩下2个banks用于ROM，SRAM，SDRAM等 7个固定的存储器bank（bank0~bank6）起始地址 最后一个bank（bank7）的起始地址是可调整的 最后两个bank（bank6~bank7）的大小是可编程的 所有存储器bank的访问周期都是可编程的 总线访问周期可以通过插入外部等待来延长 支持SDRAM的自刷新和掉电模式 16
7.1.2 复位、时钟和电源管理
时钟管理
时钟控制逻辑产生CPU所需的FCLK时钟信号、AHB总线外围设备 所需的 HCLK时钟信号，以及APB总线外围设备所需的 PCLK时钟信号。
嵌入式课程设计基于ARM9的S3C2410微处理器的设计
基于ARM9的S3C2410微处理器的设计摘要嵌入式系统(Embedded System)是一种包括硬件和软件的完整的计算机系统，它的定义是：“嵌入式系统是以应用为中心，以计算机技术为基础，并且软硬件可剪裁，适用于应用系统对功能、可靠性、成本、体积和功耗有严格要求的专用计算机系统。
”嵌入式系统所用的计算机是嵌入到被控对象中的专用微处理器，但是功能比通用计算机专门化，具有通用计算机所不能具备的针对某个方面特别设计的、合适的运算速度、高可靠性和较低比较成本的专用计算机系统。
嵌入式系统是以应用为中心，与计算机技术为基础，软硬件可配置，对功能、可靠性、成本、体积、功耗有严格约束的专用系统，所用的计算机称为嵌入式计算机。
传统的计算机分类是按照计算机的处理字长、体系结构、运算速度、结构规模、适用领域进行的，如通常所说的大型计算机、中型机、小型机和微型计算机，并以此标准来组织学科和产业分工。
关键词：嵌入式系统；嵌入式浏览器；微处理器；ARM9目录1嵌入式简介 (1)1.1嵌入式系统的概念 (1)1.2嵌入式系统的架构 (1)1.3嵌入式系统的发展历程及现状 (1)1.4嵌入式操作系统的特点 (2)1.5嵌入式系统的应用领域 (2)1.6嵌入式系统在机顶盒中的应用 (3)1.7嵌入式系统的发展趋势 (3)2 ARM处理器 (4)2.1ARM处理器特点 (4)2.2ARM体系结构的扩充 (4)3 RAM和ROM总线外接图 (5)4 ARM I/O结构 (5)5 S3C2410A提供一组完整的系统外围设备 (6)6 S3C2410的I/O口工作原理 (8)总结 (9)致谢 (10)参考文献 (11)1嵌入式简介1.1嵌入式系统的概念嵌入式系统(Embedded System)是一种包括硬件和软件的完整的计算机系统，它的定义是：“嵌入式系统是以应用为中心，以计算机技术为基础，并且软硬件可剪裁，适用于应用系统对功能、可靠性、成本、体积和功耗有严格要求的专用计算机系统。