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VMM CARD
VMM1 Analog output 16 Digital output : TOT or TTP LVDS signal
TEST BENCH FOR MODULE -1 VMM CARD VMM1 Analog output 16 Digital - - PowerPoint PPT Presentation
TEST BENCH FOR MODULE -1 VMM CARD VMM1 Analog output 16 Digital - - PowerPoint PPT Presentation
TEST BENCH FOR MODULE -1 VMM CARD VMM1 Analog output 16 Digital output : TOT or TTP LVDS signal PROBLEM : SYNCHRONIZATION VMM : data is sent via Ethernet cable trough jack/arizona cards. Precision chamber : read by gassiplex and VME
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PROBLEM : SYNCHRONIZATION
- VMM : data is sent via Ethernet cable trough
jack/arizona cards.
- Precision chamber : read by gassiplex and VME
system
No easy solution for the synchronization
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THE SOLUTION
- The idea is to use the 16
digital signals and run it through our already tested TGC route (VDE,TDC, etc)
- We faced a lot of problem with the
configuration code in order to get the signal
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WHAT TO DO WITH THE SIGNAL?
modified TDC Sequencer/ADC VME CRATE PC2 PC1
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ANALOG AND DIGITAL SIGNAL TEST PULSE
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ANALOG AND DIGITAL SIGNAL COSMIC MUON SIGNAL
Analog signal 16 strips = 16 analog signals 4 strips hit
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WHAT NEXT?
- We’re still facing a problem regarding the configuration of
multiple VMMs and thus operating a full chamber.
- A possible solution will be building or if it’s possible borrowing a
device like the “Lorne configurator": An option to configure a large number of VMM1 by serial for the same settings.
- By using this powerful device we wouldn’t have