1. Status of the ODR and System Integration March Matt Warren Valeria Bartsch, Veronique Boisvert, Maurice Goodrick, Barry Green, Bart Hommels, Marc Kelly, Andrzej Misiejuk, Martin Postranecky, Matthew Wing, Tao Wu
ABSTRACT:
A data acquisition system is described which will be used for the next generation of prototype calorimeters for the International Linear Collider and could also be used for the final system. The design is sufficiently generic such that it should have applications elsewhere, be they other ILC detectors or within High Energy Physics in general: e.g. this could be applied to LHC upgrade apparatus. The concept of moving towards a "backplaneless" readout is pursued. A strong under-pinning thread here is to attempt to make use of commercial components and identify any problems with this approach. Therefore the system should be easily upgradable, both in terms of ease of acquiring new components and competitive prices. The conceptual design, both hardware and software, of the data acquisition system for the ILC calorimeter will be discussed. Results and tests already done will then be shown indicating both the potential and limitations of the approach.

2. Firmware Status (no change)
Receive data on 4x fibre (RX),
Write to disk FAST (>150MB)
Send data up fibre (TX)
Controlled from Linux driver
DOOCs Interface
Future plans:
Decode event header from LDA
Provides on-line info
Can deal with control messages from LDA
Allows host to write to disk without processing
31 Mar 2009
Matt Warren et al. - ODR Status - CALICE/EUDET DESY

3. ODR V2 Saga (starring Barry at RHUL)
PLDA (the manufacturer) ‘upgraded’ to a new board
We call this “Version 2”
Main change: clock increased from 125 to 250MHz (Xilinx gig-links prefer this)
Jumper allows use of old 125MHz clock, our firmware works/ed in this mode …
Then our code stopped working on a v2s…
Card not recognised on PCIe bus
To rule-out hardware failure, we tried a second card. Failed too.
After LOTS of trials and testing, we contacted PLDA
We tried their reference design – it worked (PLDA off the hook)!
We removed much of our design – it DIDN’T work.
We scratched our heads …
Contacted PLDA again - They tried our firmware – it worked!
Could it be the PC? - We’ve tried various motherboards, presume not.
Phone meeting with PLDA
We sent our card this to them - IT FAILS! HOORAY!
They’re about to get new stock (this week!) – will retest our code…
31 Mar 2009
Matt Warren et al. - ODR Status - CALICE/EUDET DESY

4. Matt Warren et al. - ODR Status - CALICE/EUDET DESY
Introducing LODDAR
Due to LDA delays, we decided to kick-start the system test.
LDA  LODDAR  ODR
Use ODR hardware as an LDA
Wrap LDA code for Virtex4
Use onboard SFP for Ethernet link
ODR Virtex4 MAC and replaces LDA version
No PCIe etc
Add (existing) LDA HDMI board via debug pins on ODR
Connect to a real ODR using the proper fibre interface
ODR Hardware
ODR
LDA
Firmware
LDA
HDMI
Board
31 Mar 2009
Matt Warren et al. - ODR Status - CALICE/EUDET DESY

5. Matt Warren et al. - ODR Status - CALICE/EUDET DESY
DAQ System Test
Setup at UCL
Aim to build complete DIF to DAQ PC chain
So far we have ODR, LODDAR only.
DIF hardware and firmware is available
LDA is has been difficult (see Marc’s talk)
LODDAR in separate PC (power only)
Easier power-cycling etc of LODDAR
For initial testing. ODR packets sent to PC running wireshark
sanity check – Ethernet has advantages!
Then plug outgoing fibre ONLY into LODDAR
Monitor replies with wireshark – very useful.
Then complete the link
DAQ PC
Power
Supply PC
ODR
LODDAR
Gbit
Fibre
NIC
Good News – the LDA responds as expected
Packet sent containing multi-register write to configure test data
16 packet received by DAQ software
31 Mar 2009
Matt Warren et al. - ODR Status - CALICE/EUDET DESY

6. Next Steps (Conclusion)
As the LDA develops
Incorporate new firmware into LODDAR
Use as testbed for DAQ PC software (caldata)
Then move over to using the LDA
IF we have production delays (+Ethernet +HDMI board), we can go to “LODDAR2”:
Fully combine LDA and ODR functions
Both firmware functions inside the ODR
External IO (e.g. CCC) via debug pins
Both firmware designs use Xilinx LocalLink interfaces
We simply replace MAC-SFP-fibre-SFP-MAC with a bus!
DIF
LODDAR
DIF
ODR
Firmware
LDA
Firmware
HDMI
Board
LocalLink
LocalLink
x10
DIF
31 Mar 2009
Matt Warren et al. - ODR Status - CALICE/EUDET DESY

7. Matt Warren et al. - ODR Status - CALICE/EUDET DESY
The End
31 Mar 2009
Matt Warren et al. - ODR Status - CALICE/EUDET DESY