Frame_Interval_Inq - Point Grey Flea3 FL3-U3 Technical Reference Manual

Point Grey Flea3 USB 3.0 Technical Reference
Format:
Address
Base + 034h
Base + 038h
Base + 03Ch
Base + 040h
Base + 044h
Base + 048h
‡
Example: Bytes Per Frame = Resolution Size * 1 byte per pixel = 640 * 480 = 307200 bytes per frame
A.3.2.4

FRAME_INTERVAL_INQ

Format:
Address
Base + FRAME_INTERVAL_
050h INQ
Revised 9/27/2012
Copyright ©2011-2012 Point Grey Research Inc.
Name
PIXEL_NUMBER_
PixelPerFrame
INQ
TOTAL_BYTES_HI_
BytesPerFrameHi
INQ
TOTAL_BYTES_LO_
BytesPerFrameLo
INQ
UnitBytePerPacket
PACKET_PARA_INQ
MaxBytePerPacket
BytePerPacket
BYTE_PER_PACKET
RecBytePerPacket
PACKET_PER_
PacketPerFrame
FRAME_INQ
Name Field
FrameInterval
Field Bit
Total number of pixels in the required image
[0-31]
area
Higher 32-bits of total bytes of image data per
[0-31]
frame
Lower 32-bits of total bytes of image data per
[0-31]
frame
Minimum bytes per packet; packet sizes must
[0-15]
be multiples of the minimum
[16-31] Maximum bytes per packet
Packet size. This value determines the real
packet size and transmission speed for one
frame image.
BytePerPacket = UnitBytePerPacket * n
[0-15]
BytePerPacket <= MaxBytePerPacket
If BytePerPacket * n != Bytes Per Frame
must use padding.
(n is an integer)
Recommended bytes per packet. If this value is
[16-31]
zero, ignore this field.
Number of packets per frame. Updated after
BytePerPacket is written.
Total number of bytes of transmission data per
one frame = BytePerPacket * PacketPerFrame
[0-31]
Number of bytes of padding = BytePerPacket *
PacketPerFrame - Bytes Per Frame
The receiver must ignore the above padding in
the last packet of each frame.
Bit
Current frame interval (seconds) based on the current camera
conditions, including exposure time. The reciprocal value of this
(1 / FrameInterval) is the frame rate of the camera.
[0-31]
IEEE/REAL*4 floating-point value (see Determining Absolute
Value Register Values(page 148)
If 0, the camera can't report the value and it should be ignored.
Appendix A: Control and Status Registers
Description
‡
.
Description
‡
, you
147