imx6ull

Author: jiaxianhua

_posts/2020-12-24-imx6ull.md

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+---
+layout: post
+title: "LinuxLab 真板开发：IMX6ULL 上手指南"
+author: iosdevlog
+date: 2020-12-24 17:39:17 +0800
+description: ""
+cover-img: /assets/images/LinuxLab/IMX6ULL/0.png
+category: 
+tags: [LinuxLab, IMX6ULL]
+---
+
+## 原厂开机画面
+
+![0.png](/assets/images/LinuxLab/IMX6ULL/0.png)
+
+[[野火]i.MX Linux开发实战指南 - [野火]i.MX Linux开发实战指南 文档](/assets/images/LinuxLab/IMX6ULL/http://doc.embedfire.com/linux/imx6/base/zh/latest)
+
+![1.png](/assets/images/LinuxLab/IMX6ULL/1.png)
+
+## 用户
+
+```bash
+# root
+username: root
+password: root
+
+# normal
+username: debian
+password: temppwd
+```
+
+## 串口
+
+[2. 运行开发板与串口终端登录 - [野火]i.MX Linux开发实战指南 文档](/assets/images/LinuxLab/IMX6ULL/http://doc.embedfire.com/linux/imx6/base/zh/latest/linux_basis/board_startup.html)
+
+[](/assets/images/LinuxLab/IMX6ULL/)
+
+## SSH
+
+```bash
+ifconfig | grep 192
+# inet 192.168.1.146  netmask 255.255.255.0  broadcast 192.168.1.255
+#        inet 192.168.7.2  netmask 255.255.255.252  broadcast 192.168.7.3
+#        TX packets 904  bytes 197373 (192.7 KiB)
+fire-config # enable ssh
+sudo apt install  avahi-daemon # npi hostname
+```
+
+Client
+
+MobaXterm SSH
+
+[](/assets/images/LinuxLab/IMX6ULL/https://mobaxterm.mobatek.net/download-home-edition.html)
+
+![2.png](/assets/images/LinuxLab/IMX6ULL/2.png)
+
+```bash
+# ip address
+ssh debian@192.168.0.xxx
+# npi hostname
+ssh debian@npi
+```
+
+## 刷新镜像
+
+[9. 烧录Debian镜像至SD卡 - [野火]i.MX Linux开发实战指南 文档](/assets/images/LinuxLab/IMX6ULL/http://doc.embedfire.com/linux/imx6/base/zh/latest/install_image/install_debian_to_sd.html#debiansd)
+
+选择 “预览版”。
+
+SD 卡启动后有一个 Linux Logo。
+
+![S.jpg](/assets/images/LinuxLab/IMX6ULL/S.jpg)
+
+usb 口能虚拟个 u盘、串口、网卡出来
+
+![3.png](/assets/images/LinuxLab/IMX6ULL/3.png)
+
+把boot分区做成u盘方便修改，特别是uEnv.txt文件，我们用它加载设备树
+
+### macOS U盘:
+
+### 
+
+![4.png](/assets/images/LinuxLab/IMX6ULL/4.png)
+
+### Windows 10:
+
+![5.png](/assets/images/LinuxLab/IMX6ULL/5.png)
+
+![6.png](/assets/images/LinuxLab/IMX6ULL/6.png)
+
+### 网卡禁用数字签名
+[http://www.win10xiazai.com/win10/8148.html](/assets/images/LinuxLab/IMX6ULL/http://www.win10xiazai.com/win10/8148.html)
+
+[RNDIS.rar](/assets/images/LinuxLab/IMX6ULL/RNDIS.rar)
+
+多出一个 Linux USB Ethernet
+
+![7.png](/assets/images/LinuxLab/IMX6ULL/7.png)
+
+Window + R 打开设备管理器
+
+```bash
+devmgmt.msc
+```
+
+![8.png](/assets/images/LinuxLab/IMX6ULL/8.png)
+
+## 熟悉 EBF_6ULL 开发板
+
+### LED
+
+```bash
+#为方便使用echo命令修改系统文件，提升至root权限进行操作
+#执行该命令后，再执行exit可退回普通用户
+sudo -s
+
+#在root权限下进行下列操作
+#LED灯默认可能处于亮的状态，我们先把它们全部关闭再一盏盏点亮
+echo 0 > /sys/class/leds/red/brightness      #关闭red灯
+echo 0 > /sys/class/leds/blue/brightness     #关闭blue灯
+echo 0 > /sys/class/leds/green/brightness    #关闭green灯
+echo 255 > /sys/class/leds/red/brightness    #点亮red灯
+echo 255 > /sys/class/leds/blue/brightness   #点亮blue灯
+echo 255 > /sys/class/leds/green/brightness  #点亮green灯
+```
+
+脚本测试硬件
+
+```bash
+sudo apt update
+sudo apt install peripheral
+cd ~/peripheral
+./led.sh
+```
+
+## gcc & hello world
+
+hello.c
+
+```bash
+#include <stdio.h>
+
+int main(int argc, char *argv[]) {
+	printf("Hello World!\n");
+	return 0;
+}
+```
+
+make
+
+```bash
+sudo apt install gcc make -y
+gcc -v
+# Using built-in specs.
+# COLLECT_GCC=gcc
+# COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/8/lto-wrapper
+# Target: arm-linux-gnueabihf
+make hello
+# cc     hello.c   -o hello
+./hello
+Hello World!
+```
+
+readelf -h hello
+
+```bash
+
+ELF Header:
+  Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
+  Class:                             ELF32
+  Data:                              2's complement, little endian
+  Version:                           1 (current)
+  OS/ABI:                            UNIX - System V
+  ABI Version:                       0
+  Type:                              DYN (Shared object file)
+  Machine:                           ARM
+  Version:                           0x1
+  Entry point address:               0x3fd
+  Start of program headers:          52 (bytes into file)
+  Start of section headers:          6976 (bytes into file)
+  Flags:                             0x5000400, Version5 EABI, hard-float ABI
+  Size of this header:               52 (bytes)
+  Size of program headers:           32 (bytes)
+  Number of program headers:         9
+  Size of section headers:           40 (bytes)
+  Number of section headers:         29
+  Section header string table index: 28
+```
+
+## Linux 基础
+
+![Linux.png](/assets/images/LinuxLab/IMX6ULL/Linux.png)