Piranha HS-xx RoHS User Manual
Teledyne DALSA
03-032-20013-03
43
4.4 Camera Output Format
4.4.1 How to Configure Camera Output
The Piranha H S cam eras offer great flexibility w hen configu ring you r cam era ou tp u t.
Using the
clm
com m and , you d eterm ine the cam era’s Cam era Link configu ration,
nu m ber of ou tp u t tap s, and bit d ep th. Using the
sot
com m and , you d eterm ine the
camera’s output rate. These two commands work together to determine your final camera
ou tp u t configu ration.
You can fu rther configu re you r read ou t u sing the
smm
command to select the camera’s
p ixel read ou t d irection.
The follow ing tables su m m arize the p ossible cam era configu rations for each of the H S-xx
cam era m od els. Refer to the figu re below for a d escrip tion on how to select you r cam e ra
ou tp u t.
Figure 25: How to Read the Camera Link Tables
Camera Link Mode Configuration (Controlled by
clm command)
Readout Direction(Controlled by
smm
command)
Pixel Rate
Configuration
(Controlled by
sot
command)
Command
Camera Link
Configuration
Camera Link Taps
Bit
Depth
smm 0 increment =1
smm 1 increment = -1
clm 2
Base
2 Camera Link taps
where:
1 = CCD taps 1 +2
2 = CCD taps 3+4
8
smm
0
=CL tap 1
(1-2048)
CL tap 2
(2049-4096)
smm 1
= CL tap 1
(4096-2049)
CL tap 2
(2048-1)
sot 160
= 80 MHz
strobe
(max line rate
36kHz)
sot 80
= 40 MHz
strobe
(Max line rate
18kHz)
Find the rows in the table
with a line rate greater than
or equal to your desired
line rate.
From the rows determined in part A,
find the
values in the table
with a throughput greater than or equal
to your your required throughput.
sot
From the rows determined by
part B, find the Camera Link modes
with your desired bit depth.
From the remaining rows determined
in part C, select an acceptable Camera Link
configuration. If none of the remaining
configurations are acceptable for your system,
you will have to reduce your bit depth
or line rate.
Set the pixel readout direction.
Note: Horizontal binning reduces
the number of pixels sent to the
frame grabber by the binning factor.
Note:
In the follow ing tables, a CCD tap refers to the actu al p hysical tap s on the sensor ,
w hile the Cam era Link tap s refer to the w ay the d ata is configu red for ou tp u t over
Cam era Link. For a d iagram illu strating sensor tap s, see section 1.3 Im age Sensor.
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