4M30 Camera User’s Manual
23
DALSA
03-32-10030-04
This is one of only two “write” commands that are not followed by a data byte.
Example
Use this command to reset ADC Channel 3:
Command
Value
Binary
0010 0000
-
Hex
20h
-
3.8 Resetting the Camera (“hard” reset)
This is the only other “write” command that is not followed by a data byte. This command resets
all clock board registers to their default values (the values used at power-up).
Example
Use this command to reset the camera:
Command
Value
Binary
1000 0000
-
Hex
80h
-
Table 16: Default values in effect after reset
Feature
4M30 Default
Frame Rate (fps)
External Cntrl
Integration Time (ms)
External Cntrl
Video Gain
1x
Pixel Offset
50 DN
Trigger Mode
External
Integration Control
External
Data Rate (MHz)
4x40
3.9 Adjusting Gain
Video gain is adjustable from 1.0 to 10.0 by writing a 16 bit value as an MS and LS byte (only the
14 most significant bits of this value are actually used). The amplifier used for gain control has a
ranger of 40 dB, which equates to an adjustment increment of 0.00244 dB (40dB/2
14
). The camera
gain value is calculated according to the following equation:
Value
≅
27306*log
10
(Gain)
Where 1.0
≤
Gain
≤
10.0
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