Appendix B—Serial Communication Technical Details Tau User’s Manual
B-6 April 2009 TAU-0035-00-10, version 100
0x13 AGC_TYPE
Gets and sets the image optimization mode
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
0x0000 = automatic
0x0001 = once bright
0x0002 = auto bright
0x0003 = manual
0x0005 = linear
0x14 CONTRAST
Gets and sets the manual contrast value
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
Contrast value
(0x0000 to 0x00FF)
0x15 BRIGHTNESS
Gets and sets the manual brightness value
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
Brightness value
(0x0000 to 0x3FFF)
0x18 BRIGHTNESS_BIAS
Gets and sets the brightness bias value in the auto bright mode
Valid range is +2048 to -2048 decimal
MSB is the sign bit
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
Brightness bias value (2’s complement :
0x0000 to 0x0FFF)
Set Cmd: 2
&
Resp: 2
0x0000 = disabled (off)
0x0001 = on, Fahrenheit scale
0x0002 = on, Centigrade scale
0x20 READ_TEMP_SENSOR
Gets the FPA temp. in Celsius x 10 or raw counts
(e.g. value of 512 decimal represents 51.2C)
Sign bit is the MSB.
Set Cmd: 2
&
Resp: 2
0x0000 = temp in C*10
0x0001 = temp in raw counts
0x21 EXTERNAL_SYNC
Enables or disables the external sync feature
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
Ext sync mode
0x0000 = disabled
0x0001 = slave
0x0002 = master
0x25 TEST_ PATTERN
Gets and sets the test pattern mode. Before turning on the test
pattern, turn off the correction terms and set the flat field and
the gain mode to manual.
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
0x0000 = test pattern off
0x0001 = ascending ramp
0x0003 = big vertical
0x3C FFC_WARN_TIME
Time to display the FFC imminent icon in number of frames before
the flat field happens
Get Cmd: 0 None
Set Cmd: 2
&
Resp: 2
Bytes 0 to 1: Time in frames (Data
Range is 0 to 600 frames)
Table B-4: RS232 Function Codes
Function
Code (hex)
Command Description Byte Count
Argument
(i.e, Data Bytes) (hex)
Notes
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