Teledyne Princeton Instruments PI-MTE, System Manual

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Appendix E: USB 2.0 Limitations
The following information details the currently known limitations associated with
operation using the USB 2.0 interface.
• Maximum cable length is 5 meters (16.4 feet);
• 2 MHz is currently the upper digitization rate limit for the ST-133 Controller;
• Large data sets, and/or long acquisition times, may be subject to data overrun
because of host computer interrupts during data acquisition;
• USB 2.0 is not supported by the Teledyne Princeton Instruments PC Interface
Library (Easy DLLS);
• Some WinView 2.5.X features are not fully supported with USB 2.0. Refer to
Table E-1 for complete information.
Table E-1: WinView 2.5.x Feature Support by USB 2.0
Feature Supported by USB 2.0 Remarks
Demo Port Capability NO
DIF NO
Kinetics YES WinX 2.5.18.1
Reset Camera to NVRAM Defaults NO
Temperature Lock Status YES WinX 2.5.x doesn’t utilize
hardware lock status
PTG YES
Virtual Chip NO
Custom Timing YES WinX 2.5.18.1
Custom Chip YES WinX 2.5.18.1
Frames per Interrupt NO
RS170 (Video Output) NO
Online Exposure YES
File Information YES Not all header info is currently
available in WinX 2.5.x through
PVCAM
Overlapping ROIs NO
Macro Record YES Macros recorded for
non-PVCAM cameras may
have to be re-recorded to
function
TTL I/O NO