ROM-7720 user guide

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Contents

資源特性(Features)

  • NXP i.MX8 QuadMax 8-Core Processor with 2 Cortex-A72, 4 Cortex-A53 and 2 Cortex-M4F
  • Multi OS support in Ubuntu/Debian/Yocto Linux and Android
  • 64-bit LPDDR4 4GB
  • 4K h.265 decoder, HD h.264 encoder
  • Onboard eMMC Flash 16GB, boot selection from SPI/MMC/SD or SATA
  • 3 USB 3.0 with OTG, Dual lane MIPI Camera
  • Yocto, Android, QNX OS support

訂購資訊(Ordering Information)

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接口布局和尺寸(Layout and Sizes)

ROM-7720 接口布局圖 Board Dimension Layout 

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ROM-DB7503 接口布局圖 Board Dimension Layout

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主板内置插针式引脚排序方式 (Pin Header defination) 

Internal I/O

Position Description Connector Type
BAT1 PIN Header for Battery WAFER 8P 2.54mm 180D(M) DIP
A2543WV2-8P
BH1 RTC Battery Holder BATTERY HOLDER 24.9*23.4*8.9
CR2032 BH800.4GG
CAN1 CANBus Port 1 BOX HEADER 5x2P 2.54mm 180D(M)
DIP 23N6960-10S10
CAN2 CANBus Port 2 BOX HEADER 5x2P 2.54mm 180D(M)
DIP 23N6960-10S10
COM1 COM Port 1 BOX HEADER 5x2P 2.54mm 180D(M)
DIP 23N6960-10S10
COM3 COM Port 3 (Debug Port) BOX HEADER 5x2P 2.54mm 180D(M)
DIP 23N6960-10S10
CN4 PCIex1 Connector 1 PCIEXPRESS 36P 180D(F) DIP
2EG01817-D2D-DF
CN5 PCIex1 Connector 2 PCIEXPRESS 36P 180D(F) DIP
2EG01817-D2D-DF
CN6 PCIex1 Connector 3 PCIEXPRESS 36P 180D(F) DIP
2EG01817-D2D-DF
CN11 SATA Connector Serial ATA 7P 1.27mm 180D(M) DIP
WATM-07DBN4A3B8
CN12 SATA Power Connector WAFER 4P 2.5mm 180D(M) DIP
24W1161-04S10-01T
CN22 GPIOx8 sets PIN HEADER 10x2P 2.0mm 180D(M)
DIP 21N22050
CN25 MXM 3.0 Connector MXM Conn. 314P 90D(F) SMD
AS0B821-S78B-7H
CN26 M.2 Key E Slots NGFF 75P 0.5mm 90D(F) H=4.2mm
SMD AS0BC21-S40BE
CN38 FAN (Reserved) WTB Con. 3P 2.54mm 180D(M) DIP
A2543WV0-3P-6T-5e
CN39 MIPI-CSI1 (FPC, 4-Lane FPC 39P, 0.6mm, H0.9mm
CN40 MIPI-CSI0 (FPC, 2-Lane) FPC 39P, 0.6mm, H0.9mm
CN41 MIPI-CSI0 (Mini-SAS, 2-Lane) Mini SAS 36P/0.8mm/(M)/LCP/VA/G15u/
S/BK/W
CN42 MIPI-CSI1 (Mini-SAS, 4-Lane) Mini SAS 36P/0.8mm/(M)/LCP/VA/G15u/
S/BK/W
ESPI_CN1 ESPI PIN HEADER 6x2P 2.0mm180D(M) SMD
21N22050-12M00B
I2C_GP_1 I2C Pin Header WAFER BOX 4P 2.00mm 180D(M) DIP
721-81-04TW00
I2C_CN3 Audio Codec Board PIN HEADER 2x10P 2.54mm 180D(M)
DIP 21N22564
LVDS0 LVDS0 Wafer 2x20P/1.25mm/(M)/NY9T/VA/GFL/
S/WH/W
LVDS_BK_PWR LVDS0 Back Light WAFER BOX 5P 2.0mm 180D(M) DIP
A2001WV2-5P
LVDS1 LVDS1 Wafer 2x20P/1.25mm/(M)/NY9T/VA/GFL/
S/WH/W
LVDS1_BK_PWR LVDS1 Back Light WAFER BOX 5P 2.0mm 180D(M) DIP
A2001WV2-5P
SD1 SD Card Slot SD CARD 9P 90D(F) SMD WK2192CS3D-
7H
SPI_CN1 SPI Pin Header PIN HEADER 4x2P 2.54mm 180D(M)
SMD 21N22564
SW2 Reset Button TACT SW STS-091 SMD 4P H=3.8mm
SW4 SLP Button TACT SW STS-091 SMD 4P H=3.8mm
SW5 Power Button TACT SW STS-091 SMD 4P H=3.8mm
USB0_OTG1 USB OTG Micro USB 5P/0.65mm/(F)/NY9T/GFL/
RA/S/BK/B
USB-4-5 USB Port 4, Port 5 PIN HEADER 2x5P 2.0mm 180D(M)
SMD 21N22050

Rear I/O 

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Position Description Name
DCIN DC Jack A
CN15A UART Port 0 B
CN15B UART Port 2 C
CN1A DP Port D
CN1B HDMI Port E
CN33 Type C Controller Programming Header (Reserved Only) F
CN34 USB Type C G
CN8 GbE Ethernet Connector Port H
CN3 USB Port 1/ 2 I
Audio1 MIC Input/ Audio Output J

 

接口引脚定義 (Pin definitions)

机械尺寸  (Mechanical Characteristics)

ROM-7720

 

 

 

 

 


快速入门 (Quick Start)

系统下载 (OS Download)

  • 'Linux系统 (Linux OS)'   
Version Date Product CPU Yocto3.0/Ubuntu18.04/Debian9 SDK Components Features Modules Test Report Release Release notes Comment
VA0271 2021-06-19 ROM-5620  8X Yocto3.0 SDK Components Features Modules Test Report 5.4.70 Alpha Release_Note QE test
 

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) 

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

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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)

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Step4: 確認開機選擇指撥開關 

           SD 卡開機模式:

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

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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 ) 

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 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) 

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 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

   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 

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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. 

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Debug port connection (串口連接) 

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Log into Terminal  Tool (进入串口调试终端):

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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-5620)

      U-boot Command :

                          setenv fdt_file xxxx.dtb
                          env save
                          boot 

  • Display
    • LVDS
      • g070vw01
        • adv-imx8mxp-rom5620-a1.dtb  
      • g150xgel05
        • adv-imx8qxp-rom5620-a1-lvds-chimei.dtb
      • g215hvn01
        • adv-imx8qxp-rom5620-a1-lvds-dual.dtb
    • LVDS to HDMI
      • adv-imx8qxp-rom5620-a1-hdmi-bridge.dtb
    • DSI to HDMI
      • adv-imx8qxp-rom5620-a1-hdmi-bridge.dtb
    • DSI
      • auog101uan02
        • adv-imx8qxp-rom5620-a1-auog101uan02.dtb

乙太網路使用方法(Ethernent Testing Method)

Command : ifconfig 

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

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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

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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.

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GPIO使用方法(GPIO Operating Method)

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

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

root@imx8qxprom5620a1 : ~# echo 456 > /sys/class/gpio/export
root@imx8qxprom5620a1 : ~# echo 452 > /sys/class/gpio/export

Step 3: Set direction

root@imx8qxprom5620a1 : ~# echo out > /sys/class/gpio/gpio1/direction
root@imx8qxprom5620a1 : ~# echo in > /sys/class/gpio/gpio2/direction

Step 4: Read value and set output value then check

root@imx8qxprom5620a1 : ~# cat /sys/class/gpio/gpio2/value
0r
oot@imx8qxprom5620a1 : ~# echo 1 > /sys/class/gpio/gpio1/value
root@imx8qxprom5620a1 : ~# 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) 

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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

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  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

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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

 

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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°

      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

      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:/#'''

         

Linux BSP編譯方法(Linux BSP Compile Method)

Yocto 3.0