ROM-5720 user guide

1 資源特性(Features)
2 訂購資訊(Ordering Information)
3 接口布局和尺寸(Layout and Sizes)
4 快速入门 (Quick Start)
5 Linux系统的基本使用(Linux System Basic Operating Method)
6 通用方法(General Method)
7 Linux BSP編譯方法(Android BSP Compile Method)
- 7.1 Yocto 3.0

資源特性(Features)

NXP i.MX 8M processor with dual or quad Arm Cortex A53 cores
1 x Arm Cortex-M4 core
Onboard 2GB LPDDR4 memory and eMMC 16GB
1 x HDMI2.0 up to 4096 x 2160, 1 x 4-Lane MIPI DSI
2 x USB3.0, 4 x USB2.0, 4 x UART, 4 x I2C, 12 x GPIO, 1 x PCIe2.0, 1 x 4-lane MIPI CSI camera input, 1 x 2-lane MIPI CSI camera input and 2 x Gigabit LAN
Supports OpenGL ES 3.1/3.0/2.0/1.1, Open CL 1.2, and Vulkan hardware accelerators
Supports 4Kp60 HEVC/H.265 decoding with HDR
Cable pack & panel included
Evaluative image & test utility built-in

訂購資訊(Ordering Information)

[[File:Ordering information.PNG|RTENOTITLE]]

接口布局和尺寸(Layout and Sizes)

ROM-5720 接口布局圖 Board Dimension Layout

ROM-DB5901 接口布局圖 Board Dimension Layout

主板内置插针式引脚排序方式 (Pin Header defination)

Internal I/O

[[File:ROM-DB5901 IO2.jpg|RTENOTITLE]]

Rear I/O

接口引脚定義 (Pin definitions)

机械尺寸 (Mechanical Characteristics)

ROM-5720

快速入门 (Quick Start)

系统下载 (OS Download)

'Linux系统 (Linux OS)'

Linux 燒錄方法 (Linux Flash eMMC Method)

使用Flash tool 燒錄鏡像到eMMC (Flash image into eMMC by Flash Tools)

Step0: 檢查SD卡在Linux 環境的代號 (check SD card symbol in Linux system)

[[File:ROM-5620fdisk 2021-09-11 145401.jpg|RTENOTITLE]]

[[File:ROM-5620fdisk SDinfo2021-09-11 145609.jpg|RTENOTITLE]]

Step1: 創造一張可開機的SD 卡 (Create a bootable SD card)

[[File:ROM-5620dd 2021-09-11 150036.jpg|RTENOTITLE]]

Step2: 將可開機的SD 卡插入底板SD卡卡槽(Plug the SD card into Carrier board 's SD card slot)

[[File:CarrierboardSDsolt.jpg|RTENOTITLE]]

Step4: 確認開機選擇指撥開關

SD 卡開機模式:

[[File:SDBootupSwitch.jpg|RTENOTITLE]]

Step3:打開電源和終端機 (Turn on the Power & Terminal)

Step4: 解壓縮flash tools 檔案,並複製到U盤中(Unzip the flash tools file , then copy to USB Disk)

解壓縮(Unzip the file )

複製檔案到U盤中 (Copy the flash file to USB Disk)

1. 插入U盤到你的Ubuntu 電腦上 (Plug the USB Disk into you Linux PC

2. 檢視U盤在Ubuntu 系統代號 (Check the USB Disk's symbol in Ubuntu System)

[[File:USBDISK info2021-09-11 170716.jpg|RTENOTITLE]]

3. 掛載U盤在Ubuntu 系統中

Debug 串口調試 (Debug port Setting)

以 Tera Term 为例介绍如何使用串口调试功能
<pre> Baud Rate波特率：115200
Data 数据位：8
Parity 奇偶校验：无
Stop 停止位：1
Flow Control流控：无

Tera Term Tool

Check the Sriel port in Device Manager (查看PC端的串口号)：

if you can not identify the Serial device , please check your serial driver.

Debug port connection (串口連接)

Log into Terminal Tool (进入串口调试终端)：

Linux系统的基本使用(Linux System Basic Operating Method)

UUU 使用方法(USB Connection (OTG port))

Display Setting (ROM-5720)

U-boot Command :

setenv fdt_file imx8mq-rom5720-a1-dcss-adv7535.dtb
env save
boot

Yocto 2.5

Display
- DSI to HDMI
  - adv-imx8mq-rom5720-a1-dcss-adv7535-b3.dtb
  - adv-imx8mq-rom5720-a1-lcdif-adv7535.dtb
- DSI
  - auog101uan02
    - adv-imx8mq-rom5720-a1-dcss-auog101uan02.dtb
- Dual Display
  - DSI to HDMI + HDMI
    - adv-imx8mq-rom5720-a1-dual-display.dtb
M.2 SDIO
- Adjust CN43~CN48
- adv-imx8mq-rom5720-a1-m2-sdio.dtb
M.2 I2S
- adv-imx8mq-rom5720-a1-m2-i2s.dtb

Yocto 3.0

Display
- DSI to HDMI
  - imx8mq-rom5720-a1-dcss-adv7535.dtb
  - imx8mq-rom5720-a1-lcdif-adv7535.dtb
  - For weston ui
    - modify /etc/xdg/weston/weston.ini
      - drm-device=card2
- DSI
  - auog101uan02
    - imx8mq-rom5720-a1-dcss-auog101uan02.dtb
- Dual Display
  - DSI to HDMI + HDMI
    - imx8mq-rom5720-a1-dual-display.dtb
    - For weston ui
      - modify /etc/xdg/weston/weston.ini
        drm-device=card1
M.2 SDIO
- Adjust CN43~CN48
- imx8mq-rom5720-a1-m2-sdio.dtb

乙太網路使用方法(Ethernent Testing Method)

Command : ifconfig

Command: Ping - I eth1 8.8.8.8 or Ping - I eth0 8.8.8.8

=== WiFi使用方法(WIFI Testing Method) ===
Command :

killall wpa_supplicant
# ifconfig wlan0 up
# wpa_passphrase "SSID" "PASSWORD" > /tmp/wpa.conf
# wpa_supplicant -BDwext -iwlan0 -c/tmp/wpa.conf
# udhcpc -b -i wlan0

ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=54 time=2.10 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=54 time=2.10 ms</pre>

=== 4G使用方法(4G Testing Method) ===
Command:
Test 4G: (EWM-C117FL06E - USB)
Step 1: Connect EWM-C117FL06E to Mini PCIE slot on 9680015491 and connect
the card to CN6 PCIe_D slot on ROM-DB5901.
Step 2: Connect the antenna 1750007990-01 to the SMA (F) connector on
9680015491 and connect the IPEX connector to MT1 on EWM-C117FL06E module.
Step 3: Connect the Mini USB cable from 9680015491 to USB 2.0 Type A port on
ROM-DB5901.
Step 4: Power on and execute the pppd command to connect to the network.

GPIO使用方法(GPIO Operating Method)

Loop-back Test (Take GPIO4 and GPIO5 as examples)

Step 1: Connect GPIO4 and GPIO5
Step 2: Export GPIO interface

root@imx8qxprom5720a1 : ~# echo 456 > /sys/class/gpio/export
root@imx8qxprom5720a1 : ~# echo 452 > /sys/class/gpio/export

Step 3: Set direction

root@imx8qxprom5720a1 : ~# echo out > /sys/class/gpio/gpio1/direction
root@imx8qxprom5720a1 : ~# echo in > /sys/class/gpio/gpio2/direction

Step 4: Read value and set output value then check

root@imx8qxprom5720a1 : ~# cat /sys/class/gpio/gpio2/value
0
root@imx8qxprom5720a1 : ~# echo 1 > /sys/class/gpio/gpio1/value
root@imx8qxprom5720a1 : ~# cat /sys/class/gpio/gpio2/value
1

串口使用方法(Serial Port Operating Method)

RS-232 Test

SW7 Setting (SW7設置)

=== 蓝牙使用方法(BlueTooth Operating Method) ===
Command :

$ hciconfig hci0 up
$ bluetoothctl
$ discoverable on
$ pairable on
$ scan on
[NEW] FC:18:3C:8D:75:F4 myphone
$ scan off
$ pair FC:18:3C:8D:75:F4
$ connect FC:18:3C:8D:75:F4</pre>

遠程訪問及文件傳輸(Remote Access and File Transimmion)

查看主板IP位址 ( Chech IP Address )：
Command : ifconfig

Windows下SSH访问及文件传输

SSH Remote Log into Device

SSH远程登录,以putty选择putty.exe(或者使用Xshell、SecureCRT等类似软件)
*需要设置远程设备的IP、通讯端口(默认22)、通讯方式，登录后验证用户名密码

通用方法(General Method)

=== 查看CPU温度(Check CPU Temperature) ===
root@imx8qxprom5620a1:/# cat /sys/devices/virtual/thermal/thermal_zone0/temp 44600

# 或者直接以度爲單位顯示 echo $[$(cat /sys/class/thermal/thermal_zone0/temp)/1000]° >>> 45°</pre>

=== 查看CPU频率(Check CPU Frequency) ===
cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq
>> 900000
cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
>> 1200000

=== 查看内存容量(Check Memory Capacity) ===
root@imx8qxprom5620a1:/# busybox free -m
total used free shared buffers cached
Mem: 1794920 516080 1278840 17252 9852 80292
-/+ buffers/cache: 425936 1368984
Swap: 0 0 0

=== 查看存储容量(Check Storage Capacity) ===
root@imx8qxprom5620a1:/# busybox df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 13.4G 1.7G 11.1G 13% /
devtmpfs 395.8M 4.0K 395.8M 0% /dev
tmpfs 876.4M 0 876.4M 0% /dev/shm
tmpfs 876.4M 16.5M 859.9M 2% /run
tmpfs 876.4M 0 876.4M 0% /sys/fs/cgroup
tmpfs 876.4M 4.0K 876.4M 0% /tmp
tmpfs 876.4M 280.0K 876.2M 0% /var/volatile
/dev/mmcblk0p2 13.6G 1.7G 11.3G 13% /run/media/mmcblk0p2
/dev/mmcblk0p1 63.9M 23.4M 40.5M 37% /run/media/mmcblk0p1
/dev/mmcblk1p1 63.9M 23.4M 40.5M 37% /run/media/mmcblk1p1
tmpfs 175.3M 88.0K 175.2M 0% /run/user/0
root@imx8qxprom5620a1:/#

=== 網路Ping測試(Ping Network Testing) ===
ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=54 time=2.10 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=54 time=2.10 ms</pre>

=== 設置RTC (RTC Setting) ===
root@imx8qxprom5620a1:/# systemctl stop ntpdate.service
root@imx8qxprom5620a1:/# date 090816072021 && hwclock -w && date
Wed Sep 8 16:07:00 UTC 2021
Wed Sep 8 16:07:00 UTC 2021
root@imx8qxprom5620a1:/# date
Wed Sep 8 16:07:06 UTC 2021
root@imx8qxprom5620a1:/#

ROM-5720 user guide

Contents