CREST DAQ

1
CREST DAQ

• A Work in Progress
• M. S.
• August 20, 2006

2
Flight Computer
Task list - DAQ control via Overlord OK
XEM3010 - PMT HV control via MVC OK XEM3010 -
data pull (Overlord) - on-the-fly data
reduction - data storage (on board) - data and
command telemetry - housekeeping data pull - t0
calibration
3
Global Design
? ? ? ? ? ? ? ?
Flight Computer
Housekeeping
Commanding
Telemetry
On-board Data Storage
CIP
USB 2
USB 2
Ground Computer
Master Voltage Controller
DAQ Overloard
4
Global Design

• DAQ Overlord and Master High Voltage Controller
  connected to host computer
• USB 2 Interface
• Slave to host
• COTS Xilinx Spartan-3 FPGA
• Transfer rates17.5 MBps to and13 MBps from
  FPGA(USB 2.0 max bulk Xfer 40 MBps)

5
Flight Computer

• Cobra Pentium M Single Board Computer
  (Versalogic)
• Power Req. 8 -12W
• Operating Temp. -40 C to 85 C

8?
5.75?
replace fan with radiator
6
Flight Computer I/O
Ethernet Dual ports. Autodetect 10BaseT /
100BaseTX USB Four ports USB 2.0 and 1.1
protocol. IDE Interface Dual channel PCI-based.
Up to 4 IDE devices (Including
CompactFlash). COM 1 2 RS 232, 16C550
compatible. 115K baud max. COM 3 4 RS
232/422/485,16C550 compatible, 460K baud
max. Digital I/O 32 line TTL I/O. 2 lines IRQ
routable. Counter/Timers Two 8254 style
counter/timers. Analog I/O 8 channel 12 bit 6 µs
A/D with interrupt capability
7
Data Storage

• Solid state IDE flash disks in 2.5? or 3.5?
  format
• Extended temperature operation (-60 C to 95
  C), 120,000 feet okay
• Sustained Xfer rate 60 MB/sec max.
• Power 10W/disk
• Capacity 128 Gb 20k (was 40k in May ...)

8
Status of Work at Michigan

• UNIDAQ now compiles on 2.6 kernel (this took way
  longer than anticipated .)
• Data transfer through USB 2 port on Opal Kelly
  board tested (under Linux)

9
Next Step

• Fall 06 Barebones UNIDAQ capable of
  communicating with OK board