RK ALL RF Test

Applications

The following applications have been installed:

wpa_supplicant
chromium
minicom
iperf3

Performance Mode

Configurate CPU GPU NPU and DDR

Configurate CPU GPU NPU and DDR to performance mode at the same time:

# echo performance | tee $(find /sys/ -name *governor)
#

Configurate CPU only

# echo performance | tee $(find /sys/devices/system/cpu/cpufreq/policy* -name *governor)
#

U-Disk

U-Disk will be mounted at /run/media/sda1 automatically.
/run/media/sda1 is most common condition, it may be /run/media/sdb1 /run/media/sdc1.
Plug out U-Disk, see which one is disappeared, and then to plug in U-Disk again.

LTE

How to Configure 4G/5G module :
https://ess-wiki.advantech.com.tw/view/RK_Platform_4G

AT Port

How to find AT Port:

Method 1:

# mmcli -m 0 | grep ttyUSB
           |                   ports: cdc-wdm0 (qmi), ttyUSB4 (qcdm), ttyUSB5 (gps),
           |                          ttyUSB6 (at), ttyUSB7 (at), wwan0 (net)

ttyUSB6 and ttyUSB7 are for the ports for AT command.

Method 2:

# dmesg | grep ttyUSB
[    5.574612] usb 3-1: cp210x converter now attached to ttyUSB0
[    5.586590] usb 3-1: cp210x converter now attached to ttyUSB1
[    5.598584] usb 3-1: cp210x converter now attached to ttyUSB2
[    5.610583] usb 3-1: cp210x converter now attached to ttyUSB3
[   18.535820] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB4
[   18.542643] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB5
[   18.548504] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB6
[   18.553115] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB7

ttyUSB4 to ttyUSB7 are ports for GSM modem.
And ttyUSB6 (the second port counted backwords) is the port for AT command.

Firmware Version

Quectel EC20/EC25

How to get Firmware Version for EC20.
Take ttyUSB6 as AT port, change it according your DUT.

# stty -F /dev/ttyUSB6 9600
# cat /dev/ttyUSB6 &
# echo -e  "ATI\r\n" > /dev/ttyUSB6
Quectel
EC20F
Revision: EC20CEFRGR06A04M4G

OK

EC20CEFRGR06A04M4G is firmware verion.

Fibocom NL668

TBD

WLAN

How to Configure WLAN module :
https://ess-wiki.advantech.com.tw/view/RK_Platform_WIFI

wpa_supplicant

Configurate wlan through wpa_supplicant.
Advantech for guest is AP Host and 12345678 is its password. Change them according your condition.

# systemctl stop NetworkManager 
# ifconfig wlan0 up
# iwlist wlan0 scan | grep ESSID 
# wpa_passphrase "Advantech for guest" 12345678 > /tmp/wpa.conf
# wpa_supplicant -d -B -i wlan0 -c /tmp/wpa.conf -Dnl80211 
# udhcpc -i wlan0

Firmware Version

TBD

SDIO Infomation

The sysfs interface provides detailed information on each mmc device:

# cat /sys/kernel/debug/mmc3/ios
clock:          50000000 Hz
vdd:            21 (3.3 ~ 3.4 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      2 (4 bits)
timing spec:    2 (sd high-speed)
signal voltage: 0 (3.30 V)
driver type:    0 (driver type B)