Difference between revisions of "CountingDaq 210915"
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* Activity updates | * Activity updates | ||
** Discussion of requirements document and ICDs | ** Discussion of requirements document and ICDs | ||
| − | ** Continuing discussion of SRS to readout GEMS instead of MPDs | + | ** Continuing discussion of SRS to readout GEMS instead of MPDs - Chandan [https://moller.jlab.org/DocDB/0007/000791/001/GEM_circuits.pdf docDB791] |
* General discussion | * General discussion | ||
== Minutes == | == Minutes == | ||
| − | Participants: | + | Meeting recording on BlueJeans.com: [https://bluejeans.com/s/dMsYVGKhOuL] |
| + | |||
| + | Participants: B. Moffit, R. Michaels, D. Armstrong, P. King, C. Ghosh, H. Liu, J. Fast, M. Goodrich, R. Radloff | ||
| + | |||
| + | * Bob had put together the drafts of the interface control documents and requirements documents | ||
| + | * Discussion of SRS system | ||
| + | ** SRS had been tested using APV chip, but can use other readout chips. The SRS uses a different card for the APV chip, so is not a direct replacement for the MPD readout. | ||
| + | ** The SRS frontend cards can support 1 Gbit/s; the SRU supports 10Gb/s, so higher rates are possible with more than one FEC | ||
| + | ** The SRS also seems to multiplex the analog data with the digital data on the HDMI cables. | ||
| + | ** SRS seems to use more HDMI cables to connect to the APVs than the MPD connections. | ||
| + | * Discussion of using the APV+MPD system | ||
| + | ** Maybe we can make the APV->backplane connection more robust by using more of the boltholes in the current APV card design. | ||
| + | ** This would need a redesign of the backplane; we may need to do this anyway. | ||
| + | * In writing the requirements document, we should be speaking to the functionality rather than the specific implementation | ||
| + | * What is the plan to decide upon the GEM readout | ||
| + | ** Prototype an improved backplane | ||
| + | ** Test HDMI cable length for APV->MPD | ||
| + | ** Compare to system performance in SBS | ||
| + | * David will work on a statement of what are our timing requirements | ||
Latest revision as of 17:14, 27 October 2021
Back to Main Page >> Data Acquisition Meetings >> Counting mode DAQ meetings
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Meeting information
Meeting time: 3:00pm Eastern BlueJeans calling instructions: Toll-Free Number (U.S.& Canada): 888-240-2560 Other BlueJeans access phone numbers are listed at https://www.bluejeans.com/premium-numbers Bluejeans CODE: 385 600 867 Bluejeans link: https://bluejeans.com/385600867
Agenda
- Activity updates
- Discussion of requirements document and ICDs
- Continuing discussion of SRS to readout GEMS instead of MPDs - Chandan docDB791
- General discussion
Minutes
Meeting recording on BlueJeans.com: [1]
Participants: B. Moffit, R. Michaels, D. Armstrong, P. King, C. Ghosh, H. Liu, J. Fast, M. Goodrich, R. Radloff
- Bob had put together the drafts of the interface control documents and requirements documents
- Discussion of SRS system
- SRS had been tested using APV chip, but can use other readout chips. The SRS uses a different card for the APV chip, so is not a direct replacement for the MPD readout.
- The SRS frontend cards can support 1 Gbit/s; the SRU supports 10Gb/s, so higher rates are possible with more than one FEC
- The SRS also seems to multiplex the analog data with the digital data on the HDMI cables.
- SRS seems to use more HDMI cables to connect to the APVs than the MPD connections.
- Discussion of using the APV+MPD system
- Maybe we can make the APV->backplane connection more robust by using more of the boltholes in the current APV card design.
- This would need a redesign of the backplane; we may need to do this anyway.
- In writing the requirements document, we should be speaking to the functionality rather than the specific implementation
- What is the plan to decide upon the GEM readout
- Prototype an improved backplane
- Test HDMI cable length for APV->MPD
- Compare to system performance in SBS
- David will work on a statement of what are our timing requirements
