Difference between revisions of "EPC-R3720 user guide"

LED_USER使用方法(LED_USER ON/OFF test)

ON: echo 255 > /sys/class/leds/user/brightness
OFF: echo 0 > /sys/class/leds/user/brightness

COM1複合使用方法(COM1 complex Port Operating Method) 

Set GPIO#496, #497 
Set to 0,1 for RS-485
Set to 1,1 for RS-422
Set to 0,0 for loopback
Set to 1,0 for RS-232

RS-232 default as debug console)

RS-485 test<br/> Test RS-485 with Adam-4520. Adam-4520 Pin to RSB-3720 COM1<br/> Data- : Pin 1: COM_DCD<br/> Data+ : Pin 3: COM_RXD

RS-485 test<br/> # echo 496 > /sys/class/gpio/export<br/> # echo 497 > /sys/class/gpio/export<br/> # echo out > /sys/class/gpio/gpio1/direction<br/> # echo out > /sys/class/gpio/gpio2/direction<br/> # echo 0 > /sys/class/gpio/gpio1/value<br/> # echo 1 > /sys/class/gpio/gpio2/value<br/> # ./enable485 /dev/ttymxc2<br/> # stty -F /dev/ttymxc2 speed 115200 ignbrk -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke<br/> # cat /dev/ttymxc2 &<br/> # echo "Serial Test" > /dev/ttymxc2<br/> Will print “Serial Test” through RS-485

RS-232  --  Disable console

Disable debug message output can also improve boot speed 

setenv mmcargs setenv bootargs ${jh_clk} console=${console} modprobe.blacklist=${modprobe.blacklist} root=${mmcroot} video=HDMI-A-1:${videores} '''quiet'''<br/> env save<br/> reset<br/> 

Or

Disable debug port

(1) Yocto machine setting:

SERIAL_CONSOLES = ";"<br/> 

(2) Uboot parameter setting:

• For the imx8mq, imx8mm, imx8mp: 

  setenv console disabled<br/> env save<br/> reset<br/> 

# hciattach /dev/ttymxc0 bcm43xx 115200 flow<br/> # hciconfig hci0 up<br/> # hcitool scan# bluetoothctl<br/> # discoverable on<br/> #pairable on<br/> # scan on<br/> # scan off<br/> # pair 84:C5:A6:D3:AF:E4<br/> # connect 84:C5:A6:D3:AF:E4<br/> Check BT connect info<br/> # info 84:C5:A6:D3:AF:E4

Line-in , Line-out, MIC<br/> 1.Line-out<br/> Command : gplay-1.0<br/> 2.MIC<br/> Command : arecord<br/> Check audio codec:

# cat /proc/asound/cards<br/>  0 [sgtl5000       ]: sgtl5000 - sgtl5000<br/>                       sgtl5000<br/>  1 [audiohdmi      ]: audio-hdmi - audio-hdmi<br/>                       audio-hdmi<br/> root@imx8mprsb3720a1:~#<br/>    Set Mic/audio volume<br/> # amixer set Mic 100%<br/> # amixer set Lineout 100%<br/> # amixer set PCM 100%

Record and playback<br/> Example command:<br/> # arecord –t wav –c 1 –r 44100 –d 5 /tmp/mic.wav<br/> # aplay /tmp/mic.wav

Record from MIC:<br/> # arecord -D plughw:0,0 -r 16000 -f S16_LE ./f-16000.wav<br/> Recording WAVE './f-16000.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono<br/> # aplay f-16000.wav<br/> Playing WAVE 'f-16000.wav' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono

Play wav file from codec:<br/> # aplay -D plughw:0,0 file_example_WAV_10MG.wav<br/> Playing WAVE 'file_example_WAV_10MG.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

Play wav file from HDMI:<br/> # aplay -D plughw:1,0 file_exam<br/> ple_WAV_10MG.wav<br/> Playing WAVE 'file_example_WAV_10MG.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo<br/> 

Check I2C device (Audio codec: 0-000a)<br/> # i2cdetect -y 0<br/> I2C set and get:<br/> # i2cset -f -y 0 0x0a 0 0xff00 w<br/> # i2cget -f -y 0 0x0a 0 w<br/> 0x11a0<br/> 

System will reboot after 1 sec<br/> # /unit_tests/Watchdog/wdt_driver_test.out 1 2 0

Check MIPI CSI camera <br/> MIPI CSI0:<br/> MIPI CSI1:

MIPI CSI0 - ov5640<br/> Preview:<br/> # gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,width=640,height=480 ! waylandsink<br/> Capture:<br/> # gst-launch-1.0 v4l2src num-buffers=1 device=/dev/video0 ! video/x-raw,width=640,height=480 ! jpegenc ! filesink location=sample.jpeg<br/> MIPI CSI1 – ov5640<br/> Preview:<br/> # gst-launch-1.0 v4l2src device=/dev/video1 ! video/x-raw,width=640,height=480 ! waylandsink<br/> Capture:<br/> # gst-launch-1.0 v4l2src num-buffers=1 device=/dev/video1 ! video/x-raw,width=640,height=480 ! jpegenc ! filesink location=sample.jpeg

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

        Command : ifconfig

Windows下SSH訪問及文件傳輸

SSH Remote Log into Device 

• SSH遠程登陸,以putty選擇putty.exe(或者使用Xshell、SecureCRT等類似軟件) 
  *需要設置遠程設備的IP、通訊端口(默認22)、通訊方式錄后驗證用户名密碼 

通用方法(General Method)

    root@imx8mprsb3720a1:/# cat /sys/devices/virtual/thermal/thermal_zone0/temp   40000

    # 或者直接以度爲單位顯示 echo $[$(cat /sys/class/thermal/thermal_zone0/temp)/1000]° >>> 40°

           cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq <br/>            >> 1200000<br/>            cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq    <br/>            >> 1800000

root@imx8mprsb3720a1:/# busybox free -m<br/>               total        used        free      shared  buff/cache   available<br/> Mem:        6002524      393988     5517304       18460       91232     5507676<br/> Swap:             0           0           0<br/> 

root@imx8qxprom5620a1:/# busybox df -h<br/> Filesystem                Size      Used Available Use% Mounted on<br/> /dev/root                13.4G      1.7G     11.1G  13% /<br/> devtmpfs                395.8M      4.0K    395.8M   0% /dev<br/> tmpfs                   876.4M         0    876.4M   0% /dev/shm<br/> tmpfs                   876.4M     16.5M    859.9M   2% /run<br/> tmpfs                   876.4M         0    876.4M   0% /sys/fs/cgroup<br/> tmpfs                   876.4M      4.0K    876.4M   0% /tmp<br/> tmpfs                   876.4M    280.0K    876.2M   0% /var/volatile<br/> /dev/mmcblk0p2           13.6G      1.7G     11.3G  13% /run/media/mmcblk0p2<br/> /dev/mmcblk0p1           63.9M     23.4M     40.5M  37% /run/media/mmcblk0p1<br/> /dev/mmcblk1p1           63.9M     23.4M     40.5M  37% /run/media/mmcblk1p1<br/> tmpfs                   175.3M     88.0K    175.2M   0% /run/user/0<br/> root@imx8qxprom5620a1:/#

     ping 8.8.8.8<br/>      PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.<br/>      64 bytes from 8.8.8.8: icmp_seq=1 ttl=54 time=2.10 ms<br/>      64 bytes from 8.8.8.8: icmp_seq=2 ttl=54 time=2.10 ms

設置RTC (RTC Setting) 

 Disable RTC sync service
# systemctl disable ntpd.service
 
# systemctl stop systemd-timesyncd
# systemctl stop ntpdate.service
 
Set system time to current, then write to RTC
# date 040710522021 && hwclock -w && date
 
Set incorrect time, then read time from RTC
# date 010100002000 && hwclock -r && date
 
Restart the RTC time to system time
# hwclock -s && date

Linux BSP編譯方法(Linux BSP Compile Method)

Yocto 3.0

如果有驗證上的錯誤 請使用以下的方法 (if you have the build error , please  use " git config --global http.sslverify false" 

### 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
============================================================

Add git and vim into image:

Add below in "conf/local.conf" file:

IMAGE_INSTALL_append = " git-perltools vim "

For install vim in xwayland, please add below into "meta/recipes-support/vim/vim_8.1.1518.bb b/meta/recipes-support/vim/vim_8.1.1518.bb" fie:

PACKAGECONFIG_remove = " x11 "