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ROM-5721 User Guide

Contents​

  • 1 產品介紹 (Product introduction)
    • 1.1 產品特性 (Product Features)
    • 1.2 產品官網連結
  • 2 硬件接口說明 (Hardware interface introduction)
    • 2.1 接口布局和尺寸 (Layout and Sizes)
    • 2.2 ROM-5721 接口布局圖 Board Dimension Layout
    • 2.3 主板内置插针式引脚排序方式 (Pin Header defination)
    • 2.4 Internal I/O
    • 2.5 Rear I/O
    • 2.6 接口引脚定義 (Pin definitions)
    • 2.7 机械尺寸 (Mechanical Characteristics)
  • 3 快速入门 (Quick Start)
    • 3.1 系统下载 (OS Download)
    • 3.2 Linux 燒錄方法 (Linux Flash eMMC Method)
    • 3.3 Debug 串口調試 (Debug port Setting)
  • 4 Linux系统的基本使用 (Linux System Basic Operating Method)
    • 4.1 UUU 使用方法 (USB Connection (OTG port))
    • 4.2 Display Setting (ROM-5721)
    • 4.3 乙太網路使用方法 (Ethernent Testing Method)
    • 4.4 WiFi使用方法 (WIFI Testing Method)
    • 4.5 串口使用方法 (Serial Port Operating Method)
    • 4.6 蓝牙使用方法 (BlueTooth Operating Method)
    • 4.7 遠程訪問及文件傳輸 (Remote Access and File Transimmion)
  • 5 通用方法 (General Method)
  • 6 Linux BSP編譯方法 (Linux BSP Compile Method)
  • 7 Build known issue

產品介紹(Product introduction)​

產品特性(Product Features)​

  • NXP i.MX 8M Mini processor with up to 4 Arm Cortex A53 cores
  • 1 x Arm Cortex-M4 core
  • Onboard LPDDR4 memory and eMMC
  • 1 x 4 lane MIPI-CSI, 1 x Dual channel LVDS or 1 x Display Port
  • 4 x USB2.0, 1 x USB 2.0 OTG, 4 x UART, 4 x I2C, 12 x GPIO, 1 x PCIe2.0, 1x Gigabit LAN
  • Support OpenGL ES 2.0/1.1 by hardware accelerators
  • Low power consumption design
  • Support Linux and Android BSP

產品官網連結​

ROM-5721

硬件接口說明(Hardware interface introduction)​

接口布局和尺寸(Layout and Sizes)​

ROM-5721 接口布局圖 Board Dimension Layout​

ROM-5721 Board Layout

ROM-5721 Carrier Board

ROM-DB5901 IO

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

Internal I/O​

ROM-DB5901 IO2

PositionDescriptionConnector Type
BAT1PIN Header for BatteryWAFER 8P 2.54mm 180D(M) DIP A2543WV2-8P
BH1RTC Battery HolderBATTERY HOLDER 24.923.48.9 CR2032 BH800.4GG
CAN1CANBus Port 1BOX HEADER 5x2P 2.54mm 180D(M) DIP 23N6960-10S10
CAN2CANBus Port 2BOX HEADER 5x2P 2.54mm 180D(M) DIP 23N6960-10S10
COM1COM Port 1BOX HEADER 5x2P 2.54mm 180D(M) DIP 23N6960-10S10
COM3COM Port 3 (Debug Port)BOX HEADER 5x2P 2.54mm 180D(M) DIP 23N6960-10S10
CN4PCIex1 Connector 1PCIEXPRESS 36P 180D(F) DIP 2EG01817-D2D-DF
CN5PCIex1 Connector 2PCIEXPRESS 36P 180D(F) DIP 2EG01817-D2D-DF
CN6PCIex1 Connector 3PCIEXPRESS 36P 180D(F) DIP 2EG01817-D2D-DF
CN11SATA ConnectorSerial ATA 7P 1.27mm 180D(M) DIP WATM-07DBN4A3B8
CN12SATA Power ConnectorWAFER 4P 2.5mm 180D(M) DIP 24W1161-04S10-01T
CN22GPIOx8 setsPIN HEADER 10x2P 2.0mm 180D(M) DIP 21N22050
CN25MXM 3.0 ConnectorMXM Conn. 314P 90D(F) SMD AS0B821-S78B-7H
CN26M.2 Key E SlotsNGFF 75P 0.5mm 90D(F) H=4.2mm SMD AS0BC21-S40BE
CN38FAN (Reserved)WTB Con. 3P 2.54mm 180D(M) DIP A2543WV0-3P-6T-5e
CN39MIPI-CSI1 (FPC, 4-Lane)FPC 39P, 0.6mm, H0.9mm
CN40MIPI-CSI0 (FPC, 2-Lane)FPC 39P, 0.6mm, H0.9mm
CN41MIPI-CSI0 (Mini-SAS, 2-Lane)Mini SAS 36P/0.8mm/(M)/LCP/VA/G15u/S/BK/W
CN42MIPI-CSI1 (Mini-SAS, 4-Lane)Mini SAS 36P/0.8mm/(M)/LCP/VA/G15u/S/BK/W
ESPI_CN1ESPIPIN HEADER 6x2P 2.0mm 180D(M) SMD 21N22050-12M00B
I2C_GP_1I2C Pin HeaderWAFER BOX 4P 2.00mm 180D(M) DIP 721-81-04TW00
I2C_CN3Audio Codec BoardPIN HEADER 2x10P 2.54mm 180D(M) DIP 21N22564
LVDS0LVDS0Wafer 2x20P/1.25mm/(M)/NY9T/VA/GFL/S/WH/W
LVDS_BK_PWRLVDS0 Back LightWAFER BOX 5P 2.0mm 180D(M) DIP A2001WV2-5P
LVDS1LVDS1Wafer 2x20P/1.25mm/(M)/NY9T/VA/GFL/S/WH/W
LVDS1_BK_PWRLVDS1 Back LightWAFER BOX 5P 2.0mm 180D(M) DIP A2001WV2-5P
SD1SD Card SlotSD CARD 9P 90D(F) SMD WK2192CS3D-7H
SPI_CN1SPI Pin HeaderPIN HEADER 4x2P 2.54mm 180D(M) SMD 21N22564
SW2Reset ButtonTACT SW STS-091 SMD 4P H=3.8mm
SW4SLP ButtonTACT SW STS-091 SMD 4P H=3.8mm
SW5Power ButtonTACT SW STS-091 SMD 4P H=3.8mm
USB0_OTG1USB OTGMicro USB 5P/0.65mm/(F)/NY9T/GFL/RA/S/BK/B
USB-4-5USB Port 4, Port 5PIN HEADER 2x5P 2.0mm 180D(M) SMD 21N22050

Rear I/O​

ROM-DB5901 Rear IO

PositionDescriptionName
DCINDC JackA
CN15AUART Port 0B
CN15BUART Port 2C
CN1ADP PortD
CN1BHDMI PortE
CN33Type C Controller Programming Header (Reserved Only)F
CN34USB Type CG
CN8GbE Ethernet Connector PortH
CN3USB Port 1/2I
Audio1MIC Input/Audio OutputJ

接口引脚定義 (Pin definitions)​

机械尺寸 (Mechanical Characteristics)​

ROM-5721 Mechanical Specifications 1

ROM-5721 Mechanical Specifications 2

快速入门 (Quick Start)​

系统下载 (OS Download)​

  • Linux系统 (Linux OS)

Yocto 2.5: IoTGateway/BSP/Linux/iMX8/OS Support List

Yocto 3.0: IoTGateway/BSP/Linux/iMX8/OS Support List 3.0

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)

Check SD card symbol

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

Create 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)

SD card slot

Step4: 確認開機選擇指撥開關 (Check the boot switch)

SD 卡開機模式 (SD boot mode):

SD boot switch

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

Turn on power

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)

Unzip flash tools

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 your Linux PC)

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

Check USB disk symbol

  1. 掛載U盤在Ubuntu 系統中 (Mount the USB Disk in Ubuntu System)

Mount USB disk

  1. 複製檔案到U盤 (Copy the file to USB disk)

Copy file to USB disk

  1. 將U盤連接到ROM-5721系統, 進入flash tool下的mk_inand資料夾, 執行指令 ./mksd-linux.sh /dev/mmcblk2 燒錄image到eMMC
ROM-5721
SD card/dev/mmcblk1
eMMC/dev/mmcblk2

Flash eMMC

  1. 切換開機switch 1:on 2,3,4,5,6:off 來設定成從eMMC開機 (Change boot switch to "1:on 2,3,4,5,6:off" to boot from eMMC. Reboot system).

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

Tera Term setup 1

Tera Term setup 2

Check the Serial 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.

COM port in device manager

Debug port connection (串口連接)

Debug port connection

Log into Terminal Tool (进入串口调试终端):

Log into terminal

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

UUU 使用方法(USB Connection (OTG port))​

Download uuu tool from (ADV v20200619 · ADVANTECH-Corp/uuu · GitHub) or in the folder.

The "imx-boot-imx8mmrom5721a1-sd.bin-flash_evk" file be included in 5721A1AIM20LIV90XXX_iMX8MM_misc.tgz. XXX is the version.

Connect USB cable to USB OTG port.

Change boot switch to "4:on 1,2,3,5,6:off" to boot from force recovery mode.

UUU recovery boot switch

Type command below to flash eMMC:

UUU flash eMMC command

Display Setting (ROM-5721)​

U-boot Command:

setenv fdt_file xxxx.dtb
env save
boot

U-boot load default setting:

env default -a
env save
reset
  • Display: Default support g070vw01 LVDS panel on LVDS0

Yocto 2.5

DisplayDTB File
DSI to LVDS g070vw01adv-imx8mm-rom5721-a1.dtb
DSI to LVDS g150xgel05adv-imx8mm-rom5721-a1-dsi2lvds-g150xgel05.dtb
DSI to LVDS g215hvn01adv-imx8mm-rom5721-a1-dsi2lvds-g215hvn01.dtb
DSI to DPadv-imx8mm-rom5721-a1-dsi2dp.dtb
DSI to HDMIadv-imx8mm-rom5721-a1-adv7535.dtb
DSI auog101uan02adv-imx8mm-rom5721-a1-auog101uan02.dtb
M.2 SDIOadv-imx8mm-rom5721-a1-m2-sdio.dtb
M.2 I2Sadv-imx8mm-rom5721-a1-m2-i2s.dtb

Yocto 3.0

DisplayDTB File
DSI to LVDS g070vw01imx8mm-rom5721-a1.dtb
DSI to LVDS g150xgel05imx8mm-rom5721-a1-dsi2lvds-g150xgel05.dtb
DSI to LVDS g215hvn01imx8mm-rom5721-a1-dsi2lvds-g215hvn01.dtb
DSI to DPimx8mm-rom5721-a1-dsi2dp.dtb
DSI to HDMIimx8mm-rom5721-a1-adv7535.dtb
DSI auog101uan02imx8mm-rom5721-a1-auog101uan02.dtb
M.2 SDIOimx8mm-rom5721-a1-m2-sdio.dtb

乙太網路使用方法(Ethernent Testing Method)​

Command: ifconfig

ifconfig output

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

Ping test

WiFi使用方法(WIFI Testing Method)​

# 安裝WIFI天線到ROM-5721上
ifconfig mlan0 up
iwlist mlan0 scan

# WPA2 連線
wpa_passphrase "SSID" 123456789 > /tmp/wpa.conf
wpa_supplicant -BDwext -imlan0 -c/tmp/wpa.conf
udhcpc -b -i mlan0
ifconfig
ping 8.8.8.8

串口使用方法(Serial Port Operating Method)​

RS-232 Test

  • CN15上 (SER0/UART3): /dev/ttymxc2
  • CN15 下 (SER2/UART1): /dev/ttymxc0
  • COM 3 (A53 debug/SER3/UART2): /dev/ttymxc1
  • COM 1 (M4 debug/SER1/UART4): /dev/ttymxc3

SW7 Setting (SW7設置)

SW7 setting

MODE1  MODE0
  0      0    LOOPBACK
  0      1    RS232
  1      0    RS485
  1      1    RS422

Loopback test (eg. ttymxc0) — Connect loopback test tool:

stty -F /dev/ttymxc0 115200
stty -F /dev/ttymxc0 -echo
cat /dev/ttymxc0 &
echo test > /dev/ttymxc0

GPIO使用方法(GPIO Operating Method)​

GPIO loopback test diagram

# Loop-back Test (Take GPIO0 and GPIO2 as examples)

# Step 1: Connect GPIO0 and GPIO2
# Step 2: Export GPIO interface
echo 496 > /sys/class/gpio/export
echo 497 > /sys/class/gpio/export

# Step 3: Set direction
echo out > /sys/class/gpio/gpio1/direction
echo in > /sys/class/gpio/gpio2/direction

# Step 4: Read value and set output value then check
cat /sys/class/gpio/gpio2/value
# 0
echo 1 > /sys/class/gpio/gpio1/value
cat /sys/class/gpio/gpio2/value
# 1

蓝牙使用方法(BlueTooth Operating Method)​

$ 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

Bluetooth test

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

查看主板IP位址 (Check IP Address):

ifconfig

ifconfig IP address

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

SSH setting detail

SSH login 1

SSH login 2

SSH console

通用方法(General Method)​

查看CPU温度(Check CPU Temperature)​

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)​

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)​

busybox df -h

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)​

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

Linux BSP編譯方法(Linux BSP Compile Method)​

Yocto 4.2​

Yocto 4.0​

Yocto 3.0​

Yocto 2.5​

Build known issue​

如果有驗證上的錯誤 請使用以下的方法

repo sync failed — Server certificate verification failed​

export GIT_SSL_NO_VERIFY=1
# or
git config --global http.sslverify false

Build error with git protocol​

ERROR: ExpansionError during parsing .../mdio-tool_1.0.bb
fatal: remote error: The unauthenticated git protocol on port 9418 is no longer supported.

Modify mdio-tool_1.0.bb:

SRC_URI = "git://github.com/PieVo/mdio-tool.git;protocol=https;branch=master"

git protocol fix

nnshark error

https://community.nxp.com/t5/i-MX-Processors/Yocto-3-3-5-10-72-BSP-Build-Fail/m-p/1487902