Difference between revisions of "ROM-5720 user guide"

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== '''資源特性(Features)''' ==
+
== '''產品介紹(Product introduction )''' ==
 +
 
 +
=== '''產品特性(Product Features)''' ===
  
 
*NXP i.MX 8M processor with dual or quad Arm Cortex A53 cores  
 
*NXP i.MX 8M processor with dual or quad Arm Cortex A53 cores  
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== '''訂購資訊(Ordering Information)''' ==
+
=== '''產品官網連結(Product official website link) ''' ===
  
'''[[File:ROM-5720 Orderinginfo2021-10-12 160855.jpg|RTENOTITLE]]'''
+
[https://www.advantech.com/zh-tw/products/77b59009-31a9-4751-bee1-45827a844421/rom-5720/mod_4fbfe9fa-f5b2-4ba8-940e-e47585ad0fef '''ROM-5720''']
  
== '''接口布局和尺寸(Layout and Sizes)''' ==
+
== '''硬件接口說明(Hardware interface introduction)''' ==
 +
 
 +
=== '''接口布局和尺寸(Layout and Sizes)''' ===
  
 
=== '''ROM-5720 接口布局圖 Board Dimension Layout ''' ===
 
=== '''ROM-5720 接口布局圖 Board Dimension Layout ''' ===
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=== '''系统下载 (OS Download)''' ===
 
=== '''系统下载 (OS Download)''' ===
  
*'''Linux系统 (Linux OS)''''''   '''
+
 
 
 
{| border="2"
 
|-
 
| align="center" | '''Version'''
 
| align="center" | '''Date'''
 
| align="center" | '''Product'''
 
| align="center" | '''CPU'''
 
| align="center" | '''Yocto3.0/Ubuntu18.04/Debian9'''
 
| align="center" | '''SDK'''
 
| align="center" | '''Components'''
 
| align="center" | '''Features'''
 
| align="center" | '''Modules'''
 
| align="center" | '''Test Report'''
 
| align="center" | '''Release'''
 
| align="center" | '''Release notes'''
 
| align="center" | '''Comment'''
 
|- valign="top"
 
| VA0271
 
| 2021-06-19
 
| ROM-5720 
 
| 8MQ
 
| [http://ess-wiki.advantech.com.tw/view/Yocto3.0 Yocto3.0]
 
| [https://www.dropbox.com/sh/xqcxe99gc3gbkml/AAC2ICMVT3NqUp5P6phz7Qcva/2021-06-19/imx8LBVA0271_2021-06-19_sdk.tgz?dl=0 SDK]
 
| [http://ess-wiki.advantech.com.tw/view/Components_vA0271 Components]
 
| [http://ess-wiki.advantech.com.tw/wiki/index.php?title=Features_vA0271&action=edit&redlink=1 Features]
 
| [http://ess-wiki.advantech.com.tw/view/Modules_vA0271 Modules]
 
| [http://ess-wiki.advantech.com.tw/wiki/index.php?title=Test_Report_vA0271&action=edit&redlink=1 Test Report]
 
| 5.4.70 Alpha
 
| [http://ess-wiki.advantech.com.tw/view/Release_note_vA0271 Release_Note]
 
| QE test
 
|}
 
  
 
=== '''Linux 燒錄方法 (Linux Flash eMMC Method)''' ===
 
=== '''Linux 燒錄方法 (Linux Flash eMMC Method)''' ===
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[[File:ROM-5720 bootfromeMMC 0 2021-10-14 163636.jpg|RTENOTITLE]]
 
[[File:ROM-5720 bootfromeMMC 0 2021-10-14 163636.jpg|RTENOTITLE]]
 
====== ================================================================================================================================================== ======
 
  
 
=== '''Debug 串口調試 (Debug port Setting)''' ===
 
=== '''Debug 串口調試 (Debug port Setting)''' ===
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0</pre>
 
0</pre>
  
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&nbsp;
  
 +
&nbsp;
  
 +
&nbsp;
  
 +
&nbsp;
  
 +
&nbsp;
  
 
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&nbsp;
 
 
 
 
 
 
 
 
  
 
=== '''串口使用方法(Serial Port Operating&nbsp;Method)''' ===
 
=== '''串口使用方法(Serial Port Operating&nbsp;Method)''' ===
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*SSH远程登录,以putty选择putty.exe(或者使用Xshell、SecureCRT等类似软件)<br/> *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远程登录,以putty选择putty.exe(或者使用Xshell、SecureCRT等类似软件)<br/> *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  
  
 +
&nbsp;
  
 
+
&nbsp;
  
 
== '''通用方法(General Method)''' ==
 
== '''通用方法(General Method)''' ==
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=== '''&nbsp; &nbsp; &nbsp; 設置RTC (RTC Setting)&nbsp;''' ===<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/# systemctl stop ntpdate.service<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/# date 090816072021 && hwclock -w && date<br/> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wed Sep &nbsp;8 16:07:00 UTC 2021<br/> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wed Sep &nbsp;8 16:07:00 UTC 2021<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/# date<br/> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wed Sep &nbsp;8 16:07:06 UTC 2021<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/#
 
=== '''&nbsp; &nbsp; &nbsp; 設置RTC (RTC Setting)&nbsp;''' ===<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/# systemctl stop ntpdate.service<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/# date 090816072021 && hwclock -w && date<br/> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wed Sep &nbsp;8 16:07:00 UTC 2021<br/> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wed Sep &nbsp;8 16:07:00 UTC 2021<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/# date<br/> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Wed Sep &nbsp;8 16:07:06 UTC 2021<br/> &nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/#
  
===&nbsp; &nbsp; &nbsp; &nbsp;Mic錄音&nbsp;(Mic record)&nbsp; ===
+
=== Mic錄音&nbsp;(Mic record)&nbsp; ===
  
 
&nbsp; &nbsp; # amixer set Mic 20%
 
&nbsp; &nbsp; # amixer set Mic 20%
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&nbsp; &nbsp; # aplay ./f-16000.wav
 
&nbsp; &nbsp; # aplay ./f-16000.wav
  
=== &nbsp; &nbsp; &nbsp; &nbsp;PCIe裝置移除與rescan&nbsp; &nbsp; ===
+
=== PCIe裝置移除與rescan&nbsp; &nbsp; ===
  
 
&nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/#&nbsp;echo "1" > /sys/bus/pci/devices/0000\:01\:00.0/remove&nbsp; &nbsp; --eth1 will be remove (check with ifconfig)
 
&nbsp; &nbsp; &nbsp;root@imx8qxprom5720a1:/#&nbsp;echo "1" > /sys/bus/pci/devices/0000\:01\:00.0/remove&nbsp; &nbsp; --eth1 will be remove (check with ifconfig)
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== '''Linux&nbsp;BSP編譯方法(Linux&nbsp;BSP Compile Method)''' ==
 
== '''Linux&nbsp;BSP編譯方法(Linux&nbsp;BSP Compile Method)''' ==
 +
 +
=== [https://ess-wiki.advantech.com.tw/view/IoTGateway/BSP/Linux/iMX8/Yocto_LBVD_User_Guide '''Yocto 4.2'''&nbsp;] ===
  
 
=== [http://ess-wiki.advantech.com.tw/view/IoTGateway/BSP/Linux/iMX8/Yocto_LBVA_User_Guide '''Yocto 3.0'''] ===
 
=== [http://ess-wiki.advantech.com.tw/view/IoTGateway/BSP/Linux/iMX8/Yocto_LBVA_User_Guide '''Yocto 3.0'''] ===
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<u>'''### repo sync failed with Server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none<br/> ============================================================<br/> export GIT_SSL_NO_VERIFY=1<br/> #or<br/> git config --global http.sslverify false<br/> ============================================================'''</u>
 
<u>'''### repo sync failed with Server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none<br/> ============================================================<br/> export GIT_SSL_NO_VERIFY=1<br/> #or<br/> git config --global http.sslverify false<br/> ============================================================'''</u>
  
 +
&nbsp;
  
 
{| border="0" cellpadding="10" cellspacing="0" style="width:100%;"
 
{| border="0" cellpadding="10" cellspacing="0" style="width:100%;"

Latest revision as of 08:11, 10 May 2024

產品介紹(Product introduction )

產品特性(Product 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

 

產品官網連結(Product official website link) 

ROM-5720

硬件接口說明(Hardware interface introduction)

接口布局和尺寸(Layout and Sizes)

ROM-5720 接口布局圖 Board Dimension Layout 

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ROM-DB5901 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

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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

接口引脚定義 (Pin definitions)

机械尺寸  (Mechanical Characteristics)

ROM-5720 

 Dimensions: SMARC form factor size, 82mm (D) x 50 mm(W)
 Height on Top: Under 3.0 mm base on SPEC definition (without heat sink)
 Height on Bottom: Under 1.3 mm base on SPEC definition

RTENOTITLE

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快速入门 (Quick Start)

系统下载 (OS Download)

 

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)

   RTENOTITLE

Step4: 壓縮flash tools 檔案,並複製到U盤中(the flash tools file , then copy to USB Disk) 

    RTENOTITLE

 

Step 5:     Yocto 系統會自動掛載 U盤 在(run/media/sda1下) 

    RTENOTITLE

    並拷貝 5720A1AIM30LIVA0271_iMX8M_2G_flash_tool.tgz  到根目錄 (copy the file into Yocto system) 

     Commnd :  cp -a  5720A1AIM30LIVA0271_iMX8M_2G_flash_tool.tgz  /

     在Yocto 系統中解壓縮(Unzip the file in Yocto system on ROM-5720)  

  RTENOTITLE

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  Step 6. 燒錄eMMC 鏡像 (flash image into eMMC flash by flash tool file) 

  command : ./mksd-linux.sh /dev/mmcblk0

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Step 7 .  結束燒錄後, 請改變撥碼開關至  1 on , 其他 off (eMMC開機模式) (Finish the flash process, please chanage the switch (SW1) to  1 on , others off ) 

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移除SD卡, 拔除電源 ,改變撥碼開關 (unplug the SD card , turn off power , change the SW1 switch to eMMC mode (1 on , others off) 

eMMC mode : 1 on , others off 

  RTENOTITLE

 

Step 8. 重新上電開機 ( Turn on the power , then check the Debug message)

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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-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 

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Command: Ping - I eth1 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

 

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)

RTENOTITLE

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

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

root@imx8mqrom5720a1 : ~# echo 0 > /sys/class/gpio/export
root@imx8mqrom5720a1 : ~# echo 132 > /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@imx8mqrom5720a1 : ~# cat /sys/class/gpio/gpio2/value
1
root@imx8mqrom5720a1 : ~# echo 0 > /sys/class/gpio/gpio1/value
root@imx8mqrom5720a1 : ~# cat /sys/class/gpio/gpio2/value
0

 

 

 

 

 

 

串口使用方法(Serial Port Operating Method)

RS-232 Test

COM0: CN15A:上(SER0/UART3): /dev/ttymxc2

COM2: CN15B:下(SER2/UART2): /dev/ttymxc1

COM3: (A53 debug/SER3/UART1): /dev/ttymxc0

COM1: (M4 debug/SER1/UART4): /dev/ttymxc3

Loopback test (eg. ttymxc1)
Before loopback test, we should connect tx and rx

stty -F /dev/ttymxc1 115200

stty -F /dev/ttymxc1 ?echo

cat /dev/ttymxc1 &

echo test > /dev/ttymxc1

=== 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:/#

Mic錄音 (Mic record) 

    # amixer set Mic 20%

    # arecord -D plughw:0,0 -r 16000 -f S16_LE ./f-16000.wav

    # aplay ./f-16000.wav

PCIe裝置移除與rescan   

     root@imx8qxprom5720a1:/# echo "1" > /sys/bus/pci/devices/0000\:01\:00.0/remove    --eth1 will be remove (check with ifconfig)

     root@imx8qxprom5720a1:/# echo "1" > /sys/bus/pci/rescan                                           --eth1 will back after run this command.

         

Linux BSP編譯方法(Linux BSP Compile Method)

Yocto 4.2 

Yocto 3.0

如果有驗證上的錯誤 請使用以下的方法

### repo sync failed with Server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
============================================================
export GIT_SSL_NO_VERIFY=1
#or
git config --global http.sslverify false
============================================================