在Altera Nios II处理器上运行Linux用户指南

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"OpenSource_Linux_NiosII_User_Guide - Fixed TOC.doc" 本文档主要介绍了如何在Nios II处理器系统上运行来自Nios社区维基网站（www.nioswiki.com）的免费开源Linux发行版。文档中提到的Linux特指针对Nios II处理器的这一特定版本。读者应具备Nios II处理器、Linux以及Altera Cyclone III FPGA开发板的基础知识。主要内容包括： 1. 一般开发流程：概述了从获取Linux分布到在目标硬件上运行的整个过程。 2. 使用Nios社区维基git服务器获取Linux发行版：指导用户如何利用git服务器获取所需的软件资源。 3. 准备Cyclone III FPGA开发板以运行Linux：详细说明了对开发板进行设置和配置的步骤。 4. Nios II硬件参考设计：3C120 Cyclone III 版本：介绍Nios II处理器的硬件设计，包括系统描述和内存映射。 5. 配置和构建内核镜像：解释如何定制和构建适合Nios II处理器的Linux内核。 6. 构建用户空间应用程序：教导用户如何创建和编译应用程序，以在Linux环境中运行。 7. 下载和运行Linux及用户空间应用：详述了将Linux和应用下载到目标硬件并执行的步骤。 8. 使用git服务器管理自定义配置：指导用户如何通过git工具管理个人的系统配置。文档从1.0版本开始，分为多个章节，包括： 1. 引言：阐述文档的目的和范围。 2. 开始使用：介绍了开发方法、过程理解，以及开始前需要准备的工具和硬件。 3. Nios II硬件参考设计：详细描述了开发平台和硬件参考设计的特性。 4. 在Nios II处理器上运行Linux：涵盖了检查硬件、启动Linux等实际操作步骤。通过这份用户指南，开发者可以全面了解如何在Nios II处理器上搭建和运行开源Linux系统，以及如何进行相关应用的开发和调试。

Edition.  This is needed for
hardware and firmware 
development only. 
Board 
Specific 
Files
Option_bits.flash This is the file required to 
update the Flash section 
that contains board 
specific configuration 
settings.
Download from 
www.altera.com/w
rlinux 
m2_prod_1338.pof   This file is required to 
update the Max II design 
on older versions of the 
Cyclone III FGPA 
Development Kit.
Download from 
www.altera.com/w
rlinux 
nios2_linux_3c120_125mh
z_top.sof
This is the FPGA Image 
file that can be used to 
configure the FPGA 
Download from 
www.altera.com/w
rlinux
restore_flash These are scripts for 
programming Flash with 
pre-built kernel images. 
Download from 
www.altera.com/w
rlinux 
u-boot-files Altera provided U-Boot 
sources with useful 
utilities and U-Boot 
friendly images (.img) for 
flash programming via 
Ethernet. 
Download from 
www.altera.com/w
rlinux
Please remember to check back frequently for updates to these files.  
2.4.2 Installing Altera Quartus II Software and Nios II EDS
You can download the Web Edition of this software from the Altera Download Centre. The 
software provides the tools for building the hardware design and communicating with the 
Nios II Processor System.
1. Install Quartus II FPGA Design software and Nios II EDS (version 9.0 or later) on a 
Linux PC by downloading it from the Altera Download Centre at location below:
http://www.altera.com/support/software/licensing/sof-qts-installation.html
2. Once the tools are installed, navigate to the location of the Nios II EDS and run a 
script to set up the environment paths for the Altera development tools
% cd /build/opt/altera<version#>/nios2eds
% ./sdk_shell
3. By running the script above the paths for the home directories for the Altera Quartus 
II Software ($QUARTUS_ROOTDIR) and Altera Nios II EDS 
($SOPC_KIT_NIOS2) are set up by a shell script called env.sh (located in the current
directory). To verify this run a printenv and view the environment variable path 
settings.
4. It is recommended that you save the environment settings for the Altera and Linux 
tools in a single source shell (.e.g. a local copy of env.sh) and run that shell. 
Version 1.0 9