Visual Basic for Applications. The Datapump Board Jamieson Olsen. Background I. D0 Central Track Trigger (CTT). Background II. Trigger Electronics. Low Voltage Differential Signal (LVDS) Channel Links. Background III. LVDS Channel Links. The PROBLEM:
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The Datapump Board
Low Voltage Differential Signal (LVDS) Channel Links
Can’t probe the LVDS pairs! Can’t use a logic analyzer or ‘scope!
Need some easy way to
load test vectors into the
transmitters and readout
the captured data on the
What’s the hardware interface?
OK, use a PC!
How should the PC connect to the Datapump?
VBA module “datapump”, subroutines Download_Vector() and Verify_Vector()
VBA module “datapump”, subroutines setup_U1() and readback_U1()