h1. Toroid Electronics Meeting Minutes
h1. June 7, 2006
h1. Electronics/Triggering Discussion
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h2. Contents
{maketoc}^
h1. Attendees:
| Steve Smith | Mike Browne | Stephen Norum |
| John Dusatko | Bob Fuller | Sheng Peng |
| Patrick Krejcik | Arturo Alarcon | Michael Cecere |
h1. Agenda:
# Analog Electronics
# Trigger Generation
h1. Presentation Materials:
[Analog Electronics and Triggering, M. Cecere|http://lcls-dev:4298/tiki-download_wiki_attachment.php?attId=51] (PPT Format)
h1. Minutes:
# Discussed Analog Electronics Design
## Pulse stretch (if needed) on first buffer op-amp
## Need first switch (S1) at all?
## Don't need blocking 100uF cap
## Won't need 1meg pulldown if no S1
## Both channels need to be matched for calibration
# Discussed Triggering requirements and generation
## Need seperate trigger for each toroid channel from EVR
### this allows the IOC to scan the sampling windows and determine the optimum location for each channel independently
## Need seperate triggers for Ron's PAD Acquisition board? maybe not.
## ASYNCH or SYNCH triggering scheme? use delay units or count out memory locations
### Mike B. mentions using a recylable 1-shot to generate a clock train synched with EVR trigger
## How to signal IOC that ready to convert? send EVR to IOC or ADC in IOC (IP330)?
### does IP330 interrupt on an ext trigger?
### use a dedicated line from toroid electronics to IOC?
# Met with Bob F. and Sheng and discussed rack layout and commited to such
## Need an ICD to describe these connections completely
# Need scheme for configuration management on Toroid Electronics Board
## Individual Channel Enable Needed?
## Channel is Toroid or FARC?
## Comparator Mode assignment
## ...?
h1. Action Items:
# *M. Cecere:* Adjust circuit as described above
# *M. Cecere:* Develop Trigger Generation Scheme
# *M. Cecere:* Need ICD and Test Plan
# *M. Cecere:* Check with Ron Akre on his boards' availability
# *M. Cecere:* Determine handshaking scheme for IOC and MPS
# *M. Cecere:* Add Mechnical Box design to timeline
# *M. Cecere:* Add fast digitizer coding, and coder, to timeline
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