Configuration MC132x
Users Manual Rev. 0.22
24
(6)
Verify version string by reading serial no. and firmware versions (command: :v). The new
firmware version will be displayed as part of the version string. If the version is identical to
the expected the camera is ready to use for capturing images.
6.8.4 Reset and configuration of the internal FPGA
The command
:c
executes a reset in the camera. The FPGA will be reconfigured and all internal regis-
ters reloaded with the last saved PowerUpProfile. The FPGA is also configured after each power up.
Command:
:c
Response: none
6.9 Horizontal
pixelbinning
Pixelbinning adds the gray values of two adjacent pixels and outputs it as one pixel with double sensi-
tivity. In X-direction only 512 pixels are needed to cover the sensors full size.
To retain aspect ratio, every second line is discarded, if this feature is not disabled by setting Bit 8 of
register 6
(:r61xx)
or
vertical pixelbinning
is activated.
Command:
:r7010
Response: none
If discarding of every other line is not disabled
(:r61xx)
, the contents of
:r1
is doubled in camera logic.
To address a specific line on the sensor, the value written into
:r1
has to be divided by two and
:r3
must
not exceed 1ffh.
Example:
To output 256 lines from line 128, set r1 = 63 and r3 = 255 (=0xff).
6.10 Vertical pixelbinning
Vertical pixelbinning adds the gray values of two superimposed pixel of a column. This doubles sensi-
tivity and vertical field of view. To retain aspect ratio, in addition
horizontal binning
must be activated.
To activate, set bit 2 in register 6.
Command example:
:r6034
Response: none
6.11 Digital shading correction
For the best possible image quality even at the sensors clock limit, and non uniform lighting, the
MC132x can store gray levels along one line and subtract these from all lines of an image.
To setup shading correction set: :r6[1] = 0.
Then a uniform object should be used together with the desired lighting, exposure mode and time and
lens. The lens should be closed so that the remaining light level along the center line of the image is as
close to zero as possible, but not reaching zero.
Then set :r6[1] = 1.
