April 22nd 2021 » History » Version 3
Alexandre Camsonne, 04/22/2021 03:23 PM
| 1 | 1 | Alexandre Camsonne | h1. April 22nd 2021 |
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| 2 | 2 | Alexandre Camsonne | * Updates |
| 3 | ** VMM |
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| 4 | 3 | Alexandre Camsonne | *** FPGA bought from Newark, were delivered, other chips ordered but have not came in yet |
| 5 | *** Firmware development : positive results for 128 channels with gigabit ethernet, looking at GBT data path |
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| 6 | *** Jeff going back to VMM prototype board |
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| 7 | *** George agreed to loan and ship VMM test board : eval board same that we have with a chip socket, different firmware and software. Cannot test direct path though . Though few failures of direct output if chip pass test with this board. |
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| 8 | *** How big is BGA socket for VMM ? |
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| 9 | *** need to get firmware and software to setup and practice |
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| 10 | *** estimate prototype board ? ~10 layers |
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| 11 | *** list of parts to Nilanga |
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| 12 | 2 | Alexandre Camsonne | ** APV |
| 13 | 3 | Alexandre Camsonne | *** still looking at APV noise issue - testing with Ben, MPD might add to the noise - ordered filter to see if it can reduce the noise |
| 14 | *** MPD resistors 1.25 V line added, helps but not good enough |
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| 15 | *** did test with small GEM : same behavior as large one but noise fluctuations small. Common noise same for small and big - will try copper shielding to see if that helps |
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| 16 | *** Paolo looking at fixing design of MPD and small production of 5 MPDs |
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| 17 | 2 | Alexandre Camsonne | ** FADC |
| 18 | 3 | Alexandre Camsonne | *** Dave Abbott has VTP readout running with TI, with FADC next |
| 19 | 2 | Alexandre Camsonne | ** UMass test stand |
| 20 | 3 | Alexandre Camsonne | *** Ben helped debugging cluster finding algorithm. Successfully compiled. Project next week to test |
| 21 | *** Asymmetry : function generator method works, second method with happex timing board need to be tested |
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| 22 | **AARDVARC received |
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| 23 | |||
| 24 | *Next week streaming readout workshop |