Instruction manual

Configuration of the camera

STINGRAY Technical Manual V2.2.0

274

If both auto gain and auto shutter are enabled and if the shutter is at its

upper boundary and gain regulation is in progress, increasing the upper auto

shutter boundary has no effect on auto gain/shutter regulation as long as

auto gain regulation is active.

Auto gain control

The table below illustrates the advanced register for auto gain control.

MinValue and MaxValue limits the range the auto gain feature is allowed to

use for the regulation process. Both values are initialized with the minimum

and maximum value defined in the standard GAIN_INQ register.

Changing the auto gain range might not affect the regulation, if the regu-

lation is in a stable condition and no other condition affecting the image

brightness is changed.

If both auto gain and auto shutter are enabled and if the gain is at its lower

boundary and shutter regulation is in progress, decreasing the lower auto

gain boundary has no effect on auto gain/shutter regulation as long as auto

shutter regulation is active.

Both values can only be changed within the range defined by the standard

GAIN_INQ register.

Note

As with the Extended Shutter the value of MinValue and

MaxValue must not be set to a lower value than the minimum

shutter time.

0xF1000370 AUTOGAIN_CTRL Presence_Inq [0] Indicates presence of this

feature (read only)

--- [1..3] Reserved

MaxValue [4..15] Maximum auto gain value

--- [16..19] Reserved

MinValue [20..31] Minimum auto gain value

Table 131: Advanced register: Auto gain control