Guppy PRO Technical Manual
V4.1.2
92
Auto gain
All Guppy PRO models are equipped with
auto gain
feature.
When enabled auto gain adjusts the gain within the default gain limits or within
the limits set in advanced register F1000370h in order to reach the brightness
set in auto exposure register as reference.
Increasing the auto exposure value (aka
target gray value
) increases the
average brightness in the image and vice versa.
The applied algorithm uses a proportional plus integral controller (PI
controller) to achieve minimum delay with zero overshot.
The following tables show the gain and auto exposure CSR.
0xF0F0081C SHUTTER A_M_MODE
[7]
Write: set mode
Read: read current mode
0: MANUAL
1: AUTO
---
[8 to 19] Reserved
Value
[20 to 31] Read/Write Value
This field is ignored when writing the value in Auto
or OFF mode.
If readout capability is not available, reading this
field has no meaning.
Note
Configuration
To configure this feature in an advanced register: See
.
Note
Configuration
To configure this feature in an advanced register, see
.
Register
Name
Field
Bit
Description
Table 45: CSR: Shutter (continued)
