News
Simple PCIe FMC carrier SPEC
03-07-2012: Delivery of 52 SPEC boards
It’s getting serious now as we received at CERN four boxes with in total
52 SPEC boards from the company Seven
Solutions. All boards
are individually packed and have an LHC barcode on it that will ease us
entering the cards in our equipment database.
These boards will be used together with
ADC, Fine
Delay and
digital I/O
mezzanines, often in combination with firmware supporting White
Rabbit and therefore giving
precise time stamping of data.
Simple PCIe FMC carrier SPEC
12-06-2012: SPEC passes EMC tests
The SPEC board together with a 5 channel Digital I/O card have passed the most restrictive EMC tests of each class (domestic and industrial) successfully:
- EM Radiated Emission: Class B (Domestic) EN 55022 (2006) / A1 (2007)
- EM Immunity (Industrial): EN 61000-4-3 (2006) / A1 (2008) / A2
(2010), EN 61000-4-4 (2004) / A1 (2010) / Corr (2010), EN 61000-4-6
(2009), EN
61000-4-2 (2009), EN 61000-4-8 (2010).
The test report is publicly available.
FMC DAC 250M 16b 4cha
Hardware V2 finished
Version 2 of the hardware finished. Added HW V2 data to the repository and the new images to the wiki page. Tests will be started in the mid June..
FMC DAC 250M 16b 4cha
Started to use OHR
Updated the project wiki page with version 1 and 2 block diagrams, images, specifications, project description and status. More updates coming soon regarding the project…
Simple PCIe FMC carrier SPEC
25-04-2012: SPEC boards running in Siberia!
First field tests of two SPEC boards running a White Rabbit timing link between them have been made in Siberia. These tests are made by DESY to verify the usability of the board at the Gamma-Ray and Cosmic-Ray experiment HiSCORE-EA at the Tunka site. Full results of the tests will be made available soon. Two kilometres of fibre where outside, while the SPEC boards were nicely warm inside the counting room.
FMC DEL 1ns 4cha
15 V3 boards built
A small series of the Fine Delay module board has been built to be used in tests for CNGS to help in measuring precisely the speed of neutrinos. One board will be reserved to be used in a prototype setup for the LHC kicker magnets. It was V3 that has been built, V4 will have a slightly different output stage.
FMC DEL 1ns 4cha
02-03-2012: review of V4 held
A schematics and PCB review had been held for the V4 of the fine delay FMC module. During the review we made suggestions that improve the reliability of the board and will make it more safe to use when no terminations are used on the output signals. Once the modifications are made, CERN will order 40 boards.
FMC TDC 1ns 5cha
02-02-2012: V2 design ready
Based on the experience with the V1 prototype, nine
Issues were found.
Corrections have been made to the schematics and PCB layout and these
will be reviewed on 7 February. After this CERN’s design office will
generate the final production files.
The firmware VHDL code is under thorough review and production test
software has to be written. This work should be ready by the end of the
summer.
Simple VME FMC Carrier SVEC
Schematics review held
Three months after CERN placed the order for the design, we received the schematics for the Simple VME FMC Carrier (SVEC). One week later the first design review came up with suggestions to make the design even simpler and more compatible to the SPEC design that it should follow as closely as possible. The compatibility will make that firmware developed for the SPEC will be easy to port to the SVEC.