Difference between revisions of "FA125 Data Format Aug 25, 2015"
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* [[CDC_algo|Timing algorithm wiki page]] | * [[CDC_algo|Timing algorithm wiki page]] | ||
* Older documents: | * Older documents: | ||
− | ** [ | + | ** [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=2274 fADC125 Data Format Specification Document in DocDB - version 6] |
** [[:File:FADC125_dataformat_250_modes.docx|Data format for 250 modes on fADC125 from Cody, Aug 15 2014]] | ** [[:File:FADC125_dataformat_250_modes.docx|Data format for 250 modes on fADC125 from Cody, Aug 15 2014]] | ||
** [[:File:FADC250_modes_2.docx|FA250 modes 2 from Ed and Hai, Feb 18 2014]] | ** [[:File:FADC250_modes_2.docx|FA250 modes 2 from Ed and Hai, Feb 18 2014]] |
Latest revision as of 17:08, 24 February 2017
Location and Time
Room: CC F326 ?
Time: 2pm.
Remote Connection
You can connect using BlueJeans using the meeting number 589 693 655 . (Click "Expand" to the right for more details -->):
(if problems, call phone in conference room: 757-269-6460 might not be the correct number)
- To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 589693655.
- To join via a Web Browser, go to the page [1] https://bluejeans.com/589693655.
- To join via phone, use one of the following numbers and the Conference ID: 589693655
- US or Canada: +1 408 740 7256 or
- US or Canada: +1 888 240 2560
More information on connecting to bluejeans is here
Specific instructions for connecting via polycom:
- Turn polycom on if necessary
- With the polycom, place a call at 199.48.152.152
- Press # to enable the polycom keypad, then enter the meeting id: 589693655 and #
- You may have to unmute the microphone: #*4
- Turn the computer on if needed
Agenda
- Previous meeting (Aug 11, 2015)
- FADC125 Firmware status
- Driver library status
- Catch up on format spec changes since last meeting:
- Removed combo data types
- Renumbered remaining data types (as 5,6,9) and added window raw data (4)
- Added combo modes (data types 5 or 6 followed by type 4)
- Replaced slot number with NPK in the header for data types 5,6,9
- For the CDC, NPK=1
- Added table to interpret times & quality codes
- Added PL to config parameters
Useful Info
- Timing algorithm wiki page
- Older documents:
- For integral examples see FA125_Data_Format_July_7,_2015#Agenda
Minutes
Present: Naomi (CMU), Cody, Beni, David (JLab)
- FADC125 Firmware status
- Cody has started testing the CDC combo mode using a pulser for input, shared the results with Naomi, and has a list of changes resulting from this
- pedestal ends with sample PED
- check all NW samples are output
- add time of sample subset start *10 to LE_time
- Also there are changes from the latest format spec (listed below) to implement. He will do this in simulation first.
- We decided to keep NE fixed at 20
- The restriction NPK=1 will be made in software, so that the firmware is left more flexible for future development, and more similar to the FDC version which will aid maintenance.
- If a peak is flat-topped, the maximum amplitude sample should be the first sample at the top.
- Cody questioned the need for PL>=NW, he will look to see if this is really necessary
- Cody has started testing the CDC combo mode using a pulser for input, shared the results with Naomi, and has a list of changes resulting from this
- Driver library status
- Naomi, Cody and Beni have all started using the software library. Cody used mode 6 to get the CDC combo mode output. The current version is for firmware 2.01 but Bryan also has the next version (for format 6.5) ready.
- Naomi requested a function fa125SetCommonTimingThreshold to set the same timing thresholds on all channels on one fadc.
- Beni said he found that the first event read out was weird, not in the correct format.
- Format spec changes since last meeting (latest version is 6.5):
- Removed combo data types
- Renumbered remaining data types (as 5,6,9) and added window raw data (4)
- Added combo modes (data types 5 or 6 followed by type 4)
- Replaced slot number with NPK in the header for data types 5,6,9
- For the CDC, NPK=1
- Added table to interpret times & quality codes
- Added PL to config parameters
- All the 'check with Cody' explanatory points marked in the spec were clarified & will be added to the next version. These are all descriptions, with no changes to the format entailed.
- Next meeting: 2pm Tues Sept 8th.