ROM-8720 user guide
From ESS-WIKI
Contents
資源特性(Features)
- NXP LS1046A Cortex®-A72 COM Express Type 7 Computer-on-Module
- COM Express® Type 7 Compact Module
- Up to 4 Cores, 1.6GHz
- One Channel DDR4 SODIMM, max. 16GB (Both ECC & Non-ECC)
- Up to 10GbE x2 and GbE x4
- PCIe 3.0 x3, PCIe 2.0 x2, USB 3.0 x3 and USB2.0 x2
- Support Ubuntu BSP
訂購資訊(Ordering Information)
接口布局和尺寸(Layout and Sizes)
ROM-8720 接口布局圖 Board Dimension Layout
ROM-DB5920-00A1 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
| 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
| 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)
- 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-8720
快速入门 (Quick Start)
系统下载 (OS Download)
- Linux系统 (Linux OS)
OS Support List (based on Ubutu 18.04)
Linux 燒錄方法 (Linux Flash eMMC Method)
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
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))
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)
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)
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
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
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)
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
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)