Mobile DAQ Testbench
‘Mobi DAQ’Paulo Vitor da Silva, Gerolf Schlager
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Introduction
• Mobile DAQ test bench for commissioning of Tilecal in the pit
• Test up to 8 drawers simultaneously• 2 main functionalities:
– Test package using “DVS”– Data taking using “play_daq”
• Weekly status report in Commissioning Meetings• Dedicated homepage – link on commissioning page (
http://atlas.web.cern.ch/Atlas/SUB_DETECTORS/TILE/Commissioning/mobidaq/index.htm)
• Cooperation with TDAQ & Infrastructure (ESS) group
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Hardware Overview• Hardware:
– 5 VP110 (CCT)– 8 SSP & ODIN cards– 1 TTCvi– 1 TTCex– 1 Readout Buffer– 4 CAEN ADC– 1 1:16 optical splitter– 1 moveable VME rack
– 8 external power supplies– Many cables
Tilecal week / Sept 04 Gerolf Schlager (Cern)
8 Tilecal modules
VP110 (CCT)
Odin card
TTCexTTCvi
Readout Buffer
CAEN ADC
MobiDAQ – VME crate8x G-Link
8x TTC commandsOdin card
VP110 (CCT)
Odin card
Odin card
VP110 (CCT)
Odin card
Odin card
VP110 (CCT)
Odin card
Odin card
CANbus
CAEN ADC
CAEN ADC
CAEN ADC
8x Trigger cable
Trigger Board
Trigger Board
MobiDAQ layout
VP110 (CCT)
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Setup in pit
UX15 USA15
8 External PS
Mobi DAQPreliminary cables(TTC, G-Link, CAN, Trigger, HV,…)
Tilecal racks
Tilecal week / Sept 04 Gerolf Schlager (Cern)
• Support for LV power supply manufactured
• Can now be mounted on Tilecal finger
• Advantages:– No scaffolding needed– Minimal interference with
other activities
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Software Overview• Created mobidaq account• Setup Mobidaq ROD Crate DAQ
– based on Tiledaq RCD made by Oleg• Developed additional RCD hardware libraries
– Readout Buffer, CAEN card• Developed HV control program• Working on test package
• Scope– Data taking a la Testbeam (using Run Control)
• Save raw data in files (Athena?, Database?)• Use Monitoring to display results (CIS, pedestal noise,…)• In future also take cosmics data
– Functionality check with DVS • Using test package • Result “Ok” or “Failed” (Store results in Database?)• Easy to use & fast check• Final Atlas?
Tilecal week / Sept 04 Gerolf Schlager (Cern)
DVS (Detector Verification System)
• ATLAS TDAQ subsystem• Run tests without expert
knowledge• Standalone tests (Test
Package)• Hierarchical structure• Functionality:
– Verify status – Detect problems– Diagnose problems
• Feedback given to developers
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Test Package
• Standalone tests adopted from the established tests from Mobidick & Ahab
• Tests are written for final DAQ framework and can be used in final ATLAS
• Tests will be performed using DVS
TTC communication CANbus communication~ ADC integrator linearity~ ADC functionality~ BCID tests digitizer~ CRC test digitizer~ Pedestal noisex ADC firmware versionx CIS (2 gains)x L1A at 100 kHzx LED testx HV test
• Ready ~ In progress x Not started
Tilecal week / Sept 04 Gerolf Schlager (Cern)
HV control program
• New by Giorgi Arabidze
• Using Linux & Readout Buffer
• Full functionalities:– Set HV
– Read applied HV
– Read HV order
– Reset HV_MICRO card
– Read addresses
– Set new HV SW address
• Already used to set addresses of all drawers in pit
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Possible hierarchical structure
Drawer 1
TTC communication
CANbus comm.
ADC Linearity
CIS
Pedestal noise
L1A 100kHz
ADC Firmware Version
BCID / CRCADC functionality
Drawer 2
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Low Voltage Power Supply• 3.5 kg• Ca. 20 x 25 x 7 cm• Full user configurability
from 1.45 to 28 V• Commercial switching
power supply• Price: 849 US$ p.p.• Noise expected to be better
than with Finger supplies – dedicated tests with one supply before final order
Tilecal week / Sept 04 Gerolf Schlager (Cern)
Last minute Update• Possible Pilot Project with Infrastructure
group – ESS (contact Markus Joos)• Use of VP110 (CCT) instead of RIO• Advantages
• Better software & hardware support• Easier software development• Newer system
• Cooperation in system installation and development
• To be decided…
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