Stevie User Manual Rev 1.03
Page 48
The synchronous mode is a special feature of the e-CAM130_CUXVR board that synchronizes all the captured
camera frames according to the integrated PWM pulse within the trigger functionality. This PWM trigger pulses
can be implemented internally using the Internal Trigger Mode, or externally using the External Trigger Mode.
7.
Switch
SW1
to
EXT_TRIG
position when providing
PWM
trigger signal from an external source.
When using an internal
PWM
trigger signal, the
SW1
switch must remain in the
INT_TRIG
position This calibrates frames in a synchronous mode.
8.
Enter the following command line to access the cameras and begin the streaming process:
gst-launch-1.0 v4l2src device=/dev/video0 ! "video/x-
raw,format=(string)UYVY, width=(int)3840, height=(int)2160" !
nvvidconv ! "video/x-
raw(memory:NVMM),format=(string)I420,width=(int)1920,
height=(int)1080" ! nvoverlaysink overlay-w=1920 overlay-h=1080
sync=false
When the command is executed the following screen will be displayed:
9.
To end the streaming process, enter
Ctrl
+
C
on the keyboard.
10.
Enter the following command line to switch or change the parameters of the specific camera
(1, 2, 3, or 4) respectively.
device=/dev/video0 to 1,2,3,4.
All camera streams can be viewed simultaneously using the integrated multi-camera features within the built-
in application.
11.
Enter the following command line to view all camera streams simultaneously within the terminal.
./e-multicam.elf
15.2 Serial Multiprotocol Configuration
Elton baseboard is equipped with four serial ports routed from the AGX Xavier Series Module through the
programmable SP336 serial transceiver and implement selected RS232/422/485 protocols via GPIOs.
The SP336 is an integrated multiprotocol serial transceiver that contains both RS-232 and RS-485/RS-422
receivers and drivers and can be configured to operate in eight modes including RS-232-only (4Tx/4Rx),
RS-485/RS-422-only (2Tx/2Rx) full or half-duplex, two RS-232/RS-485/RS-422 mixed-modes.
When configured in RS-485/RS-422 mode, each driver can be individually enabled for use on shared buses
or bidirectional communication.
The SAM D51 microcontroller utility controls all four ports on the SP336 transceiver.
The microcontroller utility is used to set the modes for Ports 1 and 2 and the platform GPIOs are used to set
the mode for Ports 3 and 4.
