Difference between revisions of "ROM-7720 user guide"

Latest revision as of 04:27, 23 August 2024

產品介紹(Product introduction )

產品特性(Product 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

產品官網連結(Product official website link) 

ROM-7720

硬件接口說明(Hardware interface introduction)

接口布局和尺寸(Layout and Sizes)

ROM-7720 接口布局圖 Board Dimension Layout 

ROM-DB7503 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)

• 電池(BAT1) & 電池扣(BH1)
• CAN(CAN1,CAN2)
• 串口(COM_DB(COM3)、COM1、UART0 、UART2)
• 显示接口(LVDS、LVDS Backlight、HDMI、DP)
• LAN接口(LAN)
• USB接口(USB1-2、USB-4-5、USB Type C、USB OTG)
• 音频接口(Audio Output &Audio Codec)
• 电源及指示灯和开关机复位按钮(Power 、LED、Power Button、Reset Button、Sleep Button) 
• GPIO接口
• MINI_PCIE接口_M.2接口_SPI、I2C_接口

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)

           Yocto 3.0   

           Yocto 2.5 

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)

Step 3: 確認開機選擇指撥開關 

           SD 卡開機模式(Boot swtich for SD card ):

           2-3-4 is "ON" for SD

           eMMC 開機模式(Boot switch for eMMC ) : 

            4 is "ON" for eMMC 

Step 4:打開電源 和 終端機 (Turn on the Power & Terminal)

Step 5: Flash iamge tools 檔案( Flash image tool )

  1. 插入U盤到你的Ubuntu 電腦上 (Plug the USB Disk into your device )

  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 

4.   複製檔案到U盤中 (Copy the flash file to system) 

5.  解壓縮(Unzip the file )

6. 

7. 

8. Execute the flash image tool 

9. 移除 SD Card ( Unplug the SD card ) 

10 測試 eMMC 開機 

          Note : eMMC 開機模式(Boot switch for eMMC ) : 

                      4 is "ON" for eMMC 

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-7720)

      U-boot Command :

setenv fdt_file xxxx.dtb
env save
boot 

• Display
  • HDMI
    • adv-imx8qm-rom7720-a1.dtb
  • LVDS
    • g070vw01
      • adv-imx8qm-rom7720-a1_lvds0.dtb
      • adv-imx8qm-rom7720-a1_lvds1.dtb
    • g215hvn01
      • adv-imx8qm-rom7720-a1_lvds_dual.dtb
  • HDMI + LVDS
    • HDMI + g070vw01
      • adv-imx8qm-rom7720-a1_hdmi_lvds0.dtb
      • adv-imx8qm-rom7720-a1_hdmi_lvds1.dtb
    • HDMI + g215hvn01
      • adv-imx8qm-rom7720-a1_hdmi_lvds_dual.dtb
  • LVDS to HDMI
    • adv-imx8qm-rom7720-a1-it6263.dtb
• Audio Codec
  • adv-imx8qm-rom7720-a1-sgtl5000.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

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)

GPIO

$ function test_gpio_pair() {

cd /sys/class/gpio

local GO=$1 GI=$2

echo gpio$GO output to gpio$GI

echo $GI > export; echo $GO > export

echo out > gpio$GO/direction; echo in > gpio$GI/direction

echo 1 > gpio$GO/value; echo "$GO:$(<gpio$GO/value) ==> $GI:$(<gpio$GI/value)"

echo 0 > gpio$GO/value; echo "$GO:$(<gpio$GO/value) ==> $GI:$(<gpio$GI/value)"

echo $GI > unexport; echo $GO > unexport

cd - > /dev/null 

}

上表的GPIO1~8 對應到下圖的 GPIO0~7，注意: 並非插槽針腳的編號

GPIOCHIP info(Yocto3.0):

串口使用方法(Serial Port Operating Method)

RS-232 Test 

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

Audio Test: 

Audio - SGTL5000

Get sgtl5000 device 

$ HW=$(aplay -l | grep "^card.*sgtl5000" | sed "s/^card //;s/:.*//"); echo HW=$HW

Use amixer ,and set sgtl5000 headphone / PCM volume 

$ amixer -c $HW sset 'Headphone' 90%

$ amixer -c $HW sset 'PCM' 90%

Voice Testing:

$ VA=~/video_audio.mp4 # video file 

$ gst-launch-1.0 filesrc location=$VA ! decodebin ! audioconvert ! audioresample ! alsasink device=hw:$HW

通用方法(General Method)

查看CPU温度(Check CPU Temperature)

root@imx8qmrom7720a1:/# cat /sys/devices/virtual/thermal/thermal_zone0/temp
65400
root@imx8qmrom7720a1:/#

    # 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@imx8qmrom7720a1:/# busybox free -m
             total       used       free     shared    buffers     cached
Mem:       1792540     563488    1229052      17504      18460     139496
-/+ buffers/cache:     405532    1387008
Swap:            0          0          0
root@imx8qmrom7720a1:/#

查看存储容量(Check Storage Capacity)

root@imx8qmrom7720a1:/#  busybox df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                12.8G      2.3G      9.9G  19% /
devtmpfs                394.6M      4.0K    394.6M   0% /dev
tmpfs                   875.3M         0    875.3M   0% /dev/shm
tmpfs                   875.3M     16.5M    858.8M   2% /run
tmpfs                   875.3M         0    875.3M   0% /sys/fs/cgroup
tmpfs                   875.3M      4.0K    875.3M   0% /tmp
tmpfs                   875.3M    500.0K    874.8M   0% /var/volatile
/dev/mmcblk0p5            7.7M     45.0K      7.3M   1% /run/media/mmcblk0p5
/dev/mmcblk0p1          127.7M     23.9M    103.8M  19% /run/media/mmcblk0p1
/dev/sda1                58.1G      9.5G     48.6G  16% /run/media/sda1
/dev/mmcblk0p6          739.9M    776.0K    685.4M   0% /cache
tmpfs                   175.1M     88.0K    175.0M   0% /run/user/0
root@imx8qmrom7720a1:/#

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@imx8qmrom7720a1:/#  systemctl stop ntpdate.service
root@imx8qmrom7720a1:/# date 031516072023 && hwclock -w && date
Wed Mar 15 16:07:00 UTC 2023
Wed Mar 15 03:46:31 UTC 2023
root@imx8qmrom7720a1:/# date
Wed Mar 15 03:46:39 UTC 2023
root@imx8qmrom7720a1:/#

Linux BSP編譯方法(Linux BSP Compile Method)

Yocto 3.0

Yocto 2.5