VAR-SOM-MX6 Yocto Unit Testing V5
WLAN
List SSIDs, from Linux shell type:
$ ifconfig wlan0 up $ iwlist wlan0 scan
Connecting to an encrypted network
Find your network from the above scan command.
$ wpa_passphrase <YourAP> <YourPassword> >wpa.conf $ ps | grep wpa_supplicant *kill the wpa_supplicant process if exist. $ wpa_supplicant -Dwext -iwlan0 -c./wpa.conf -B $ udhcpc -iwlan0 $ ifconfig
Gbit Ethernet
On Target:
$ ifconfig $ iperf -s -u
On Host:
$ iperf -c 192.168.1.189 -u -b1000M -w4KB
Bluetooth
$ hcitool scan $ l2ping 98:03:D8:C7:1A:96
Video playback
Play video file, from linux shell type:
$ gplay <file>
Audio record/play
$ amixer set PCM 125 $ aplay /usr/share/sounds/alsa/Front_Center.wav $ arecord -f cd -d 10 -D hw:0,0 test.wav $ aplay test.wav
HDMI boot arguments
All paramters are u-boot enviroment parameters.
Default:
U-Boot # setenv bootargs console=ttymxc0,115200 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs
This will set the LCD to work.
HDMI 1080P:
U-Boot # setenv bootargs console=ttymxc0,115200 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24'
HDMI 720P:
U-Boot # setenv bootargs console=ttymxc0,115200 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs video=mxcfb0:dev=hdmi,1280x720M@60,if=RGB24
LVDS boot arguments
All paramters are u-boot enviroment parameters.
Default:
U-Boot # setenv bootargs console=ttymxc0,115200 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs
This will set the LCD to work.
LVDS only display:
U-Boot # setenv bootargs console=ttymxc0,115200 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs ldb=sin1
LVDS only display with screen paramters:
U-Boot # setenv bootargs console=ttymxc0,115200 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs ldb=sin1 video=mxcfb0:dev=ldb,800x600M@60,if=RGB24
LVDS and LCD Dual display:
U-Boot # setenv bootargs console=ttymxc0,115200 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs ldb=dul0'
RTC
To set the RTC first set the date from Linux shell, type:
$ date 2013.08.27-15:43
Then set the real time clock from Linux shell, type:
$ hwclock --systohc
Power down your board wait 5 minutes and power up. Check your system with date and the time should be up to date.
Camera
$ modprobe ov5642_camera $ modprobe mxc_v4l2_capture $ /etc/rc5.d/S01xserver-nodm stop $ gst-launch mfw_v4lsrc ! mfw_v4lsink
External Uart
Use minicom to connect. Set the serial to ttymxc2 You can use a loopback or connect to anther computer
SATA
$ $ fdisk /dev/sda When you get prompt "Command (m for help):" hit p
Test output example:
root@varsommx6q:~# cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST9120823AS Rev: 3.AD Type: Direct-Access ANSI SCSI revision: 05 root@varsommx6q:~# fdisk /dev/sda The number of cylinders for this disk is set to 14593. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): p Disk /dev/sda: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 9123 73280466 7 HPFS/NTFS /dev/sda2 9124 14593 43937744+ f Win95 Ext'd (LBA) /dev/sda5 9124 11035 15358108+ 7 HPFS/NTFS /dev/sda6 14319 14593 2208906 82 Linux swap /dev/sda7 11036 14318 26369024 83 Linux
PCIE
$ lspci
The output should look like:
00:00.0 PCI bridge: Device 16c3:abcd (rev 01)
01:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
USB OTG as host
N/A. See release notes
USB OTG as device
Plug a cable to a A linux host.
Folow www.linux-usb.org/gadget/file_storage.html and build the backing_file.
On the Target:
$ modprobe g_mass_storage file=./backing_file
On the Host:
use dmesg and find out your device for example /dev/sdb $ sudo dd if=/dev/zero of=/dev/sdb bs=128k count=1000
3 ports USB Host
Plug a DiskOnKey, Mouse or Keyboard to any of the 3 ports.
Canbus
Starting Release 4 of the Yocto Canbus is integrated into the system. No patch required.
- Connect 2 boards. Each board JP26 connect to the other with the right cable.
Set up the 2 boards by running on each of them:
$ ip link set can0 up type can bitrate 125000
On board #1:
$ cansniffer can0
On board #2:
$ cansend can0 500#1E.10.10