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)

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

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)

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

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)

Step4: 確認開機選擇指撥開關

SD 卡開機模式:

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)

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@imx8qxprom5720a1:/# 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@imx8qxprom5720a1:/# 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@imx8qxprom5720a1:/# 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@imx8qxprom5720a1:/#

=== 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@imx8qxprom5720a1:/# systemctl stop ntpdate.service
root@imx8qxprom5720a1:/# date 090816072021 && hwclock -w && date
Wed Sep 8 16:07:00 UTC 2021
Wed Sep 8 16:07:00 UTC 2021
root@imx8qxprom5720a1:/# date
Wed Sep 8 16:07:06 UTC 2021
root@imx8qxprom5720a1:/#

ROM-5720 user guide

Contents