clock and trigger distribution for na62

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Clock and Trigger Distribution for NA62 Marián Krivda, Cristina Lazzeroni University of Birmingham, UK 14/12/2011 1

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Clock and Trigger Distribution for NA62. Mari á n Krivda, Cristina Lazzeroni University of Birmingham, UK. Summary of LTU production and tests. 20 LTU boards are available 19 boards o.k. 1 board has a wire patch -> use it only in lab !. LTU firmware ver.6. Temp (temperature on board) - PowerPoint PPT Presentation

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Page 1: Clock and Trigger Distribution for NA62

Clock and Trigger Distribution for NA62

Marián Krivda, Cristina LazzeroniUniversity of Birmingham, UK

14/12/2011 1

Page 2: Clock and Trigger Distribution for NA62

Summary of LTU production and tests

• 20 LTU boards are available– 19 boards o.k.– 1 board has a wire

patch -> use it only in lab !

14/12/2011 2

Page 3: Clock and Trigger Distribution for NA62

LTU firmware ver.6

14/12/2011 3

• Temp (temperature on board)• BUSY (choke/error - enable/disable)• TTCvi (coding and serialization for TTC ch. B)• VME FIFO• Short, long broadcast option (only from VME FIFO) • L0 processor Emulator • Start signal (RND, BC, Pulser edge/level, Soft

trigger)• Counters

Page 4: Clock and Trigger Distribution for NA62

Test setup I.

LTU(emulates trigger seq’s) TTCex (feeds optical link) TTCit (monitors optical link)

VME processor LTU TTCex TTCit 14/12/2011 4

Page 5: Clock and Trigger Distribution for NA62

Data bits

Hamming bits

Strobed data

B-channel short broadcast test

8 bit data data[0] and data[1] have special meaningeffectively only data[7:2] can be used for the message

Test: data messages set by LTU softwareLTU-->TTCex --> TTCit

14/12/2011 5

Page 6: Clock and Trigger Distribution for NA62

Test setup II.

• Installation of new VME processor VP717 and VME RCC driver -> successful• Test for more LTUs in one VME crate (15 LTUs !!!) -> successful

14/12/2011 6

Page 7: Clock and Trigger Distribution for NA62

TTCex II (ver.2)

14/12/2011 7

• After extensive tests, TTC group (PH-ESE) has found a component (PLL) which hasn`t constant delay after power-up.

• PH-ESE will change PLL for different type and redo TTCex boards

• Solution:- now: 5 TTCex (any kind) + 1 TTCex (mark I) or good-

quality mark II)- for 2012 runs (not later than April 2012): 2 TTCex

(mark I) + 3 TTCex (mark I or good-quality mark II)

Page 8: Clock and Trigger Distribution for NA62

14/12/2011 8

TTC network – final version

Page 9: Clock and Trigger Distribution for NA62

Optical splitters

14/12/2011 9

• After a negotiations with INFRACTIVE we got a better price:– 1:4 -> 145 EUR– 1:8 -> 165 EUR– 1:16 -> 225 EUR

• They use cheaper metal box• Offer is valid only 1 month, so

WE NEED TO ORDER THEM SOON IF WE WANT A GOOD PRICE

Page 10: Clock and Trigger Distribution for NA62

Next plans

14/12/2011 10

• Implement SSM functionality (firmware)• Implement a timing synchronization(software), RC circuit is on

the board:• LTU -> TTCex• L0processor -> LTU

Page 11: Clock and Trigger Distribution for NA62

Summary• We have 20 LTU boards and ??? TTCex boards• 6 LTUs are ready for distribution – now (request from

Marco Sozzi)• Other LTUs can be picked-up at 53-R-008, but please

send me email before coming• TTC network is defined• Optical splitters order (???)• We have 3 TTCit boards for NA62 -> necessary to test

them

14/12/2011 11