9
Micropublisher 6
TM
User Manual
Prime’s USB3.0 interface is ubiquitous and easy to use. To use the interface, the
PC must have an open USB3.0 port. Prime is not USB2.0 compatible. USB3.0
ports are usually indicated by the Sup logo and are typically blue in
color.
Tip: USB devices sharing the same bus as the Prime BSI contend for available
bandwidth, potentially causing the camera to drop frame rate. For this reason,
Teledyne Photometrics recommends isolating the camera to its own USB3.0
root hub as shown in the Windows Device Manager.
A method for creating an independent root hub in computers with many USB
devices is to install a PCI Express based USB3.0 interface card for use with
the camera. In this case Teledyne Photometrics recommends using the PCIe
interface described above.
It is not recommended to connect to the Prime BSI external USB3.0 hubs.
When the camera is able to expose and read out images simultaneously, it is in
Overlap Mode. Overlap Mode is set by choosing “Pre-Sequence Clearing” for the
clearing mode of the camera. This allows one clear before the imaging sequence
starts. The following waveforms show how Overlap Mode functions. When using
Overlap Mode, the frame rate is higher as compared to Non-Overlap Mode and
provides the ability to continuously image. However, since exposure and readout
occur simultaneously, the minimum exposure time is dependent on the time
taken to complete readout. In timed mode + Overlap Mode, exposure times may
be set that are shorter than the readout time, as shown in timing diagram below.
Connecting Prime BSI
with USB 3.0
Clears
Read-out 1
Read-out 2
Read-out 3
Exp 1
Exp 3
Exp 2
Clears
Exposure
Read-out
Read-out 1
Read-out 2
Read-out 3
Exp 1
Exp 2
Exp 3
