NXPHD6UL-IoT工控板用户手册

1. 产品简介 ·······················································································6 

1.1 硬件参数······················································································· 6 

1.2 拨码开关与指示灯说明 ···································································· 8 

1.3 软件特性设备管理 ·········································································· 8 

2. 产品快速使用说明 ···········································································9 

2.1 启动选择······················································································· 9 

2.2 串串口登录······················································································· 9 

2.2.1 串口硬件连接 ·········································································· 9 

2.2.2 使用串口终端登录 ··································································· 10 

2.3 关机和重启 ·················································································· 12 

2.4 查看系统信息 ··············································································· 12 

2.4.1 查看内核版本 ········································································· 12 

2.4.2 查看内存使用情况 ··································································· 12 

2.4.3 查看磁盘使用情况 ··································································· 13 

2.4.4 查看磁盘分区信息 ··································································· 13 

2.4.5 查看 CPU 信息 ········································································ 13 

2.5 网络设置······················································································ 14 

2.5.1 获取网络信息 ········································································· 14 

2.5.2 设置 IP 与子网掩码 ·································································· 14 

2.5.3 设置默认网关 ········································································· 15 

2.5.4 关闭/启动网卡 ········································································· 15 

2.5.5 设置 DNS ··············································································· 16 

2.5.6 开机自动设置网络参数 ····························································· 16 

2.5.7 注意事项 ··············································································· 17 

2.6 网络登录······················································································ 17 

2.7 USB 鼠标与 USB 键盘使用 ······························································ 18 

2.8 TF 卡使用 ···················································································· 19 

2.9 U 盘使用 ······················································································ 19 

2.10 与 PC 互传文件 ············································································· 20 

2.11 LED 测试 ····················································································· 22 

2.12 蜂鸣器测试 ·················································································· 23 

2.13 CAN 测试 ···················································································· 23 

2.14 串口测试······················································································ 23 

2.15 液晶背光设置 ··············································································· 28 

2.16 音频播放测试 ··············································································· 28 

2.17 WIFI 测试 ···················································································· 28 

2.18 时钟设置······················································································ 30 

2.19 4G 网络测试 ················································································· 30 

3. Linux 应用程序开发 ········································································ 32 

3.1 安装 Linux 操作系统 ······································································· 32 

3.1.1 VMware 软件 ·········································································· 32 

3.1.2 创建和配置虚拟机 ··································································· 37 

3.1.3 安装 Ubuntu ············································································ 47 

3.1.4 安装 VMware Tool ···································································· 55 

3.1.5 虚拟机和主机之间传输文件 ······················································· 56 

3.1.6 Ubuntu 操作简介 ······································································ 60 

3.2 嵌入式 Linux 开发简介 ···································································· 64 

3.3 安装交叉编译器 ············································································ 65 

3.3.1 安装编译内核的交叉编译器 ······················································· 65 

3.3.2 安装编译应用程序的交叉编译器 ················································· 65 

3.3.3 设置 PATH 环境变量 ································································· 72 

3.4 Hello，World! ··············································································· 72 

3.4.1 编写 HelloWorld 源程序 ····························································· 73 

3.4.2 编译 helloworld 程序 ································································· 73 

3.4.3 下载程序 ··············································································· 73 

3.4.4 运行程序 ··············································································· 73 

3.5 QT 编程 ······················································································· 74 

3.5.1 QT 介绍 ················································································· 74 

3.5.2 QT 开发环境搭建 ····································································· 74 

3.5.3 Tslib—触摸屏校准 ··································································· 80 

3.5.4 Hello，World! ········································································· 80 

3.6 示例程序介绍 ··············································································· 86 

3.6.1 Hello World ············································································· 86 

3.6.2 LED 示例 ··············································································· 86 

3.6.3 蜂鸣器示例 ············································································ 86 

3.6.4 串口编程示例 ········································································· 87 

3.6.5 CAN 编程示例 ········································································ 87 

3.6.6 网络编程示例 ········································································· 87 

3.6.7 数据库编程示例 ······································································ 89 

4. Web 控制系统 ··············································································· 90 

4.1 嵌入式 Web 开发简介······································································ 90 

4.1.1 嵌入式 Web 服务器 ·································································· 90 

4.1.2 CGI ······················································································ 90 

4.2 Boa 服务器 ··················································································· 90 

4.2.1 Boa 服务器简介 ······································································· 90 

4.2.2 编译 Boa 服务器 ······································································ 91 

4.2.3 Boa 服务器配置 ······································································· 91 

4.3 Web 开发环境搭建 ········································································· 92 

4.4 Web 开发实例 ··············································································· 92 

4.4.1 静态网页 ··············································································· 92 

4.4.2 使用 CGI 程序的动态网页 ·························································· 93 

5. U-Boot ························································································· 95 

5.1 U-Boot 简介 ·················································································· 95 

5.1.1 Bootloader 简介 ······································································· 95 

5.1.2 U-Boot 介绍 ············································································ 95  

5 5.1.3 U-Boot 工作原理 ······································································ 95 

5.2 U-Boot 基本命令 ············································································ 96 

5.2.1 查看命令列表 ········································································· 96 

5.2.2 环境变量 ··············································································· 99 

5.2.3 网络命令 ············································································· 100 

5.2.4 Nand Flash 命令 ····································································· 101 

5.2.5 启动命令 ············································································· 102 

5.2.6 组合命令 ············································································· 102 

5.2.7 重启命令 ············································································· 103 

5.3 U-Boot 工具 ················································································ 103 

6. Linux 内核 ·················································································· 104 

6.1 内核简介···················································································· 104 

6.1.1 概述···················································································· 104 

6.1.2 Linux 内核源码······································································ 104 

6.1.3 Linux 内核配置系统 ······························································· 105 

6.2 编译内核···················································································· 108

7. 文件系统 ···················································································· 110 

7.1 文件系统介绍 ············································································· 110 

7.1.1 根文件系统目录结构 ······························································ 110 

7.1.2 根文件系统类型 ···································································· 110 

7.2 设置开机自启动程序 ···································································· 112 

7.3 动态加载模块 ············································································· 112 

8. 系统恢复与更新 ··········································································· 113 

8.1 Nand Flash 分区 ··········································································· 113 

8.2 烧写系统映像 ············································································· 113 

8.2.1 硬件连接 ············································································· 113 

8.2.2 使用 MtgTools 软件进行烧写 ···················································· 114 

8.3 烧写 U-Boot 映像 ········································································· 115 

8.4 烧写 DTB ··················································································· 115 

8.5 烧写 Linux 操作系统 ····································································· 116 

8.6 制作根文件系统 ·········································································· 116 

8.7 编译 Linux 操作系统 ····································································· 117 

9. 免责声明 ···················································································· 118 

10. 联系我们 ·················································································· 119 

更多产品资料后续会陆续公开，敬请期待！