DAQ -1 Status (2)

Dataflow Software

• Current: Tile Cal test beam used Readout Crate implemented by CES RIO2s: 3 ROBs, EBIF, LDAQ.
• Imminent: Readout Crate implemented on a PC. Slink/PCI cards available at 2.2kSF each. Typical PC has maximum of six PCI slots.
• This may provide a possible hardware architecture for slice tests (given money for Slink/PCI cards: would need to order soon from Erik van der Bij).
• Advantage: use complete DAQ -1 environment, automatic even building from multiple RODs without (?) large software effort.
• Medium term: joint work on ``DetDAQ'' (aka ROD crate DAQ) by LAr and TileCal, both now using the same RODs.
• This would involve developing a ROD crate controller: implement some dataflow functions (the ``IO Module'') in software running in the crate CPU which would interface to the RODs.
• We should provide input into this activity.
• Eg DetDAQ sees no requirement for event building from multiple RODs.
• Outstanding issues: dataflow code is not yet open source. Some libraries have been released to us privately. More work needs to be done on documentation and packaging the software for non expert developers.