Point Grey Flea3 USB 3.0 Technical Reference 3 General Camera Operation
3 General Camera Operation
3.1 Powering the Camera
The USB 3.0 Micro-B connector (page 20) provides a power connection between the camera and the host computer.
The ideal input voltage is nominal 5 V DC.
The power consumption specification is: 5 V, <3 W, via GPIO or USB 3.0 interface.
Power can also be provided through the GPIO interface. For more information, see General Purpose Input/Output
(GPIO) on page 41. The camera selects whichever power source is supplying a higher voltage.
Point Grey sells a 12 V wall-mount power supply equipped with a HR25 8-pin GPIO wiring harness for connecting to
the camera (Part No. ACC-01-9006). For more information, see the miscellaneous product accessories page on the
Point Grey website.
The camera does not transmit images for the first 100 ms after power-up. The auto-exposure and auto-white balance
algorithms do not run while the camera is powered down. It may therefore take several (n ) images to get a
satisfactory image, where n is undefined.
When the camera is power cycled (power disengaged then re-engaged), the camera will revert to its default factory
settings, or if applicable, the last saved memory channel. For more information, see User Memory Channels on page
32.
3.1.1 CAMERA_POWER: 610h
Field Bit Description
Cam_Pwr_Ctrl [0]
Read:
0: Camera is powered down, or in the process of powering up (i.e., bit will be zero until
camera completely powered up ),
1: Camera is powered up
Write:
0: Begin power-down process, 1: Begin power-up process
[1-30] Reserved
Camera_Power_Status [31]
Read only
Read: the pending value of Cam_Pwr_Ctrl
Format:
3.2 Device Information
Information about the camera 's hardware, status and monitoring is available.
Serial Number—This specifies the unique serial number of the camera.
Revised 9/27/2012
Copyright ©2011-2012 Point Grey Research Inc.
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