Tau User’s Manual Appendix B—Serial Communication Technical Details
TAU-0035-00-10, version 150 June 2011 B-9
0x4C AGC_ROI
Gets or sets the Region of Interest (ROI) for AGC in normal and
zoom modes. Assumes signed coordinates relative to center
value of (0,0).
When the byte count of the incoming message is 0, the 8-byte
argument of the reply is the ROI for the current zoom state
(unzoomed, 2X zoom, or 4X zoom).
When byte count of the incoming message is 2 (GET) or 24 (set),
the 24-byte argument of the reply contains the normal ROI, 2X
zoom ROI, and 4X zoom ROI
Resp: 8
Bytes 0-1: Left
Bytes 2-3: Top
Bytes 4-5: Right
Bytes 6-7: Bottom
Get Cmd: 2 Don’t care
Set Cmd: 24
&
Resp: 24
Bytes 0-1: Left, normal ROI
Bytes 2-3: Top, normal ROI
Bytes 4-5: Right, normal ROI
Bytes 6-7: Bottom, normal ROI
Bytes 8-9: Left, 2X ROI
Bytes 10-11: Top, 2X ROI
Bytes 12-13: Right, 2X ROI
Bytes 14-15: Bottom, 2X ROI
Bytes 16-17: Left, 4X ROI
Bytes 18-19: Top, 4X ROI
Bytes 20-21: Right, 4X ROI
Bytes 22-23: Bottom, 4X ROI
0x55 ITT_MIDPOINT
Gets and sets the ITT midpoint offset
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
Data Range is 0 to 255
0x66 CAMERA_PART
Gets the camera part number
Response contains the part number. If the host system is little
endian the bytes need to be reversed as the camera is big endian
Get cmd: 0 None
Response:
32
String(32)
0x6A MAX_AGC_GAIN
Gets and sets the max value of video gain
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
Data Range 0 to 2048
0x70 PAN_AND_TILT
Gets and sets the pan position (x axis) and the tilt position (y axis)
when the camera is in zoomed mode
Get Cmd: 0 None
Set Cmd: 4
&
Resp: 4
Bytes 0-1: Tilt position in rows relative to
the center of the array (-68 to +68)
Bytes 2-3: Pan position in columns
relative to the center of the array(-82 to
+82)
0x72 VIDEO_STANDARD
Gets or sets the video standard (affects frame rate).
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
0x0000 = NTSC
0x0001 = PAL
Table B-4: RS232 Function Codes
Function
Code (hex)
Command Description Byte Count
Argument
(i.e, Data Bytes) (hex)
Notes
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