|
|
| Line 1: |
Line 1: |
| {{PageHeader|Unit Testing}}
| | = CPU info = |
| | | <pre> |
| __toc__
| |
| | |
| root@varsomam43:~# cat /proc/cpuinfo | | root@varsomam43:~# cat /proc/cpuinfo |
| processor : 0 | | processor : 0 |
| Line 16: |
Line 14: |
| Revision : 0000 | | Revision : 0000 |
| Serial : 0000000000000000 | | Serial : 0000000000000000 |
| root@varsomam33:~# cat /proc/version | | root@varsomam43:~# cat /proc/version |
| Linux version 3.14.26-gde9decc-dirty (shukiz@ubuntu) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #1 Tue Jan 20 02:46:07 PST 2015 | | Linux version 3.14.26-gde9decc-dirty (am43@ubuntu) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #1 Tue Jan 20 02:46:07 PST 2015 |
| root@varsomam43:~# | | root@varsomam43:~# |
|
| |
| = RTC<br> =
| |
|
| |
| To set the RTC first set the date from Linux shell, type:<br>
| |
| <pre>$ date 2013.08.27-15:43
| |
| </pre>
| |
| Then set the real time clock from Linux shell, type:<br>
| |
| <pre>$ hwclock --systohc
| |
| </pre>
| |
| Power down your board wait 15 seconds and power up. Check your system with date and the time should be up to date.<br>
| |
|
| |
| = Audio record/play =
| |
| <pre>
| |
| $ aplay /usr/share/sounds/alsa/Front_Center.wav
| |
| $ arecord -f cd -d 10 -D hw:0,0 test.wav
| |
| $ aplay test.wav
| |
| </pre>
| |
|
| |
| = WLAN =
| |
| ''' VAR-SOM-AM33 V2.X only:''' <br>
| |
| When using VAR-SOM-AM33 v2.x, SOM has a WL183x module. In that case you should configure the WL183x module as follows (only in the first boot):
| |
| <pre>$ cd /usr/bin/wlconf/
| |
| $ ./configure-device.sh [WL18xx chip]
| |
| Then choose the correct number of antennas on board and choose (n) to generate a clean configuration file from .ini
| |
|
| |
|
| |
| For example:
| |
|
| |
| root@varsomam33:/usr/bin/wlconf# ./configure-device.sh wl1835
| |
| Device is capable of supporting 2 antenna in 2.4Ghz band
| |
| how many antennae are fitted? [1/2] : 1
| |
| Error: Module wlcore_sdio is not currently loaded
| |
| A wl18xx-conf.bin file already exists, do you want to modify it (y) or generate a clean one from .ini (n)
| |
| modify it? [y/n] : n
| |
| </pre>
| |
| '''General usage:''' <br>
| |
| List SSIDs, from Linux shell type:
| |
| <pre>$ ifconfig wlan0 up
| |
| $ iw wlan0 scan
| |
| </pre>
| |
| '''Connecting to an encrypted network:'''<br>
| |
|
| |
| Find your network from the above scan command.<br>
| |
| <pre>$ wpa_passphrase <YourAP> <YourPassword> >wpa.conf
| |
| $ ps | grep wpa_supplicant
| |
| *kill the wpa_supplicant process if exist.
| |
| $ wpa_supplicant -Dnl80211 -iwlan0 -c./wpa.conf -B
| |
| $ udhcpc -iwlan0
| |
| $ ifconfig
| |
| </pre>
| |
|
| |
| * WL12xx calibration tool
| |
| Calibration of TI WL12xx wireless device is required and is saved into the NVS file. The NVS file is then used by the wl12xx driver.
| |
| For more details please read [http://processors.wiki.ti.com/index.php/WL12xx_NLCP_Calibration_Process NLCP Calibration Process]
| |
|
| |
| = 100Mbit Ethernet =
| |
| On Target:
| |
| <pre>$ ifconfig
| |
| $ iperf -s -u
| |
| </pre>
| |
| On Host:
| |
| <pre>$ iperf -c 192.168.1.189 -u -b100M -w4KB
| |
| </pre>
| |
|
| |
| = Gbit Ethernet =
| |
| On Target:
| |
| <pre>$ ifconfig
| |
| $ iperf -s -u
| |
| </pre>
| |
| On Host:
| |
| <pre>$ iperf -c 192.168.1.189 -u -b1000M -w4KB
| |
| </pre>
| |
|
| |
| = OpenGL demo (supported CPUs) =
| |
| Run the demo script at Linux command prompt after the VAR-DVK-AM33 EVB boots up
| |
| <pre>
| |
| /etc/init.d/335x-demo
| |
| </pre>
| |
|
| |
| = ADC controller =
| |
| please follow TI wiki pages:
| |
| http://processors.wiki.ti.com/index.php/AM335x_ADC_Driver%27s_Guide
| |
|
| |
| = USB OTG as host =
| |
|
| |
| By default the OTG is configure to be "peripheral". You can switch it to "host" if you change the dr_mode in the device tree.
| |
|
| |
| Please see details on the Wiki page below:
| |
| http://variwiki.com/index.php?title=VAR-SOM-AM33_Linux_SDK_7_Configurations
| |
|
| |
| Once the USB-OTG port has been configured as host, simply connect a USB Mouse or DOK to the OTG port.
| |
|
| |
| = USB OTG as device =
| |
|
| |
| Plug a USB cable to a Linux or a Windows host.<br>
| |
|
| |
| Follow [http://www.linux-usb.org/gadget/file_storage.html www.linux-usb.org/gadget/file_storage.html] and build the backing_file.<br>
| |
|
| |
| On the Target:<br>
| |
| <pre>$ modprobe g_mass_storage file=./backing_file
| |
| </pre>
| |
| On the Host:<br>
| |
| Wait for a mass-storage device to be detected.
| |
|
| |
| = Bluetooth =
| |
| * Bring BT device up:
| |
| <pre>
| |
| $ hciconfig hci0 up
| |
| </pre>
| |
|
| |
| * Scan for BT devices and ping:
| |
| <pre>
| |
| $ hcitool scan
| |
| $ l2ping 98:03:D8:C7:1A:96
| |
| </pre>
| |
|
| |
| Then work with any other standard bluetooth API and commands.
| |
|
| |
| = CAN Bus =
| |
|
| |
| *Connect CANL, CANH and GND pins of two VAR-SOM-AM33 boards (located on J17).
| |
| *Power-up both boards.
| |
| *Type the following into the shell of both boards for configuration the CAN bus device:
| |
| <pre>$ ip link set can0 type can bitrate 50000 triple-sampling on
| |
| $ ip link set can0 up
| |
| </pre>
| |
| *Type the following to the shell of board 1 (which is used for testing receiving over can0 device):
| |
| <pre>$ candump can0
| |
| </pre>
| |
| *Type the following to the shell of board 2 (which is used for testing sending data packets over can0 device):
| |
| <pre>$ cansend can0 0x11 0x22 0x33 0x44 0x55 0x66 0x77 0x88</pre>
| |
| *At this point, board 1 will receive the data packet sent from board 2:
| |
| <pre><0x001> [8] 11 22 33 44 55 66 77 88
| |
| </pre>
| |
|
| |
| = RS-232 port =
| |
| *Enable RS232 UART ttyO1 I/F on the VAR-SOM-AM33:
| |
| <pre>
| |
| echo 20 > /sys/class/gpio/export
| |
| echo "out" > /sys/class/gpio/gpio20/direction
| |
| echo 0 > /sys/class/gpio/gpio20/value
| |
| </pre>
| |
|
| |
| *Start minicom and connect to a UART device:
| |
| <pre>
| |
| minicom -D/dev/ttyO1 -b115200 -8
| |
| </pre> | | </pre> |