DAQMB Status – Onward to Production! S. Durkin, J. Gu, B. Bylsma, J. Gilmore,T.Y. Ling DAQ Motherboard (DMB) Initiates FE digitization and readout Receives and sends FE data to DDU Provides Slow Control interface to FE boards (VME-JTAG) Pre-production Board has been Unchanged for ~2 Years 515 boards in System Radiation Tests with 60 MeV Protons at UCD August 2002 Davis (2 days) September 2003 Davis (1 day)

Radiation Levels at Peripheral Crates Integrated over 10 LHC years (5x10 7 s at cm -2 s -1 ) Neutron Fluence (>100 keV): (1 - 4) x cm -2 Total Ionizing Dose: (0.07 – 0.7) kRad Integrated over 10 LHC years (5x10 7 s at cm -2 s -1 ) Neutron Fluence (>100 keV): (1 - 4) x cm -2 Total Ionizing Dose: (0.07 – 0.7) kRad Calculations by M. Huhtinen Neutron Energy (MeV) Neutron Flux (cm -2 s -1 ) Neutron Fluence (cm -2 ) Radius (cm) ME11 ME12 ME13 E>100 KeV ME11

Worst-case Radiation Environment –Measure SEE (SEU and SEL) cross sections for neutron fluence of 4x10 10 cm -2 –Measure TID effects up to a dose of 2 kRad –Measure degradation for an equivalent neutron fluence of 2x10 12 cm -2

Radiation Test Summary FIFO bit errors small and correctable using CRC word Bipolar also irradiated at OSU reactor

Cumulative effects –Total ionization dosage (with 63 MeV protons) No deterioration of performance up to 5 krad –Displacement damage (with 2x10 12 cm -2 1 MeV) Usable voltage regulators and references identified Single-Event Effects –No latch-up for all chips up to 4x10 10 p cm -2 –Single Event Upset (SEU) Cross sections measured for all FPGA’s, Links. All SEU’s in FPGA’s recoverable by reloading SEU’s dominated by FE Electronics ~50:1 FE Electronics resets will also reset DAQMB

25 nsec Structure Test Beam (DAQMB Summary) DAQ rate tests carried out with high intensity pion beam. –100 KHz L1A (scintillators), 100 KHz LCT, 1 Kz matched L1A-LCT with 16 SCA sample readout. No Problems. –When L1A-LCT matching increased to 10 KHz, event got overwritten, DMB buffer not empty. –Repeat above with 8 sample readout. No problems Resets – no issues Timing – no issues Backplane communications – no issues DAQ Readout – no issues

Magnetic Testing < 4 kGauss at Peripheral Crates Rare Earth Magnet Rated 12 kG Measured 4 kG (0.5 cm) No magnetic effects observed Burn In What do other people do ? CDF: C for 8-24 Hrs Sufficient for tantalums failures No sensitivity to semiconductor failure US Military: 125 C for 320 Hrs Chip Makers recommend against this Each board 65C for 24 Hrs Test Before and After

Production Test Software Written and Tested

Preproduction Crate Test We have never tested a full crate of electronics - 11 DAQMB ordered (Sept 10, 2003) - Boards will be stuffed commercially Test ball grid arrays Do we have enough TMB’s … Jay? Conclusion ESR November 6, 2003 Then Production …

Virtex II Pro FIFO VME Buffers Gigabit Ethernet Transceiver Voltage Regulators - much simpler VME controller - programming all on Linux PC - same drivers as alternate DAQ path - commercial gigabit ethernet card in PC - inexpensive ~$600/unit Status Gigabit to VME Controller B. Bylsma, S. Durkin Not Needed for Raw Packets Packet length 64 bytes minimum, 9000 bytes maximum Data Format: crate cmd vme address vme data Even without packing or buffering VME rates are reasonable! 2048 bit => 2 microseconds download, 2 Mbit FPGA in 2 seconds Prom

Distributing Gigabit Ethernet NETGEAR Gigabit Ethernet Switch Level 2 (MAC addresses), 12 gigabit fiber ports $2000 Status - Parts Ordered/ Most in Hand - PC Board to Company next week - Gigabit ethernet included in Virtex II (no firmware) -- VME Master firmware being written Controller will be debugged within a Couple of Weeks