| A Robin Prototype for a PCI-Bus based ATLAS Readout-System (2004) | |
Abstract | |
| The Atlas RobIn Prototype is an FPGA and Processor based PC I device, which receives event data fragments on two HOLA SLink ports, buffers a nd delivers or deletes them on request. Thus it is one of the core devices of th e Atlas Readout System (ROS). To study various PCI-Bus and Ethernet based ROS im plementations the board offers two interface flavours for data requests: PCI and Gigabit Ethernet. This paper presents a study of a ROS System based on an ordin ary PC, hosting up to 3 RobIn Prototypes using the PCI-Bus for data exchange. Th e multithreaded host software uses an asynchronous messaging scheme optimizing t he communication with the RobIns. First measurements indicate that a PCI-Bus bas ed ROS can satisfy Atlas Data-Flow needs. | |
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