From 1a60d7e039ed6f326762743927d2607a55963477 Mon Sep 17 00:00:00 2001 From: Michael Traxler Date: Fri, 26 Apr 2013 22:12:46 +0200 Subject: [PATCH] typos --- 2013-twepp-michel-network/summary.txt | 49 +++++++++++++++------------ 1 file changed, 27 insertions(+), 22 deletions(-) diff --git a/2013-twepp-michel-network/summary.txt b/2013-twepp-michel-network/summary.txt index cef650f..58f2dea 100644 --- a/2013-twepp-michel-network/summary.txt +++ b/2013-twepp-michel-network/summary.txt @@ -1,24 +1,29 @@ -During the upgrade of the HADES experiment at GSI (Darmstadt, Germany) in the past years several new -read-out electronics and data transportation developments were made. One part is the TrbNet data acquisition network protocol -that allows for individual slow-control access to each front-end module and provides a convenient interface -for trigger distribution and data read-out. A whole set of software for monitoring, control and -data acquisition was designed on top and successfully used during an experimental run in 2012. -The electronics developed for this upgrade are now in widespread use among several detector prototypes -and experimental set-ups, e.g. for the CBM and PANDA experiments at FAIR. Here, the TrbNet protocol -also serves as the read-out system. - -In this context it was a logical decision to also adapt the network protocol to the specific needs of these -experiments. One important difference is the time distribution concept that foresees to remove the need for a -dedicated timing signal and thereby reduce the amount of interconnection inside the system. The -optical data transmission system can support the synchronization of all sub-systems of a detector -on the order of nanoseconds. This can be achieved by implementing message with precisely -defined propagation latency. In particular, it is vital to fix all delays -introduced in the data transmission blocks on the transmitter and receiver sides. The length of the -optical cable between two nodes can be evaluated by measuring the round-trip time of a datagram. -The measuring precision of few nanoseconds with synchronous counters can be increased to below 100~ps -using the well-established FPGA-based TDC technology. - -All features have been implemented in the universal TRB3 FPGA platform. We are going to present the -implemented features with a focus on the synergy between experiments and show first measurements with synchronous networks. +During the upgrade of the HADES experiment at GSI (Darmstadt, Germany) in the +past years several new read-out electronics systems and data transportation +schemes have been developed. One part is the TrbNet data acquisition network +protocol that allows for individual slow-control access to each front-end +module and provides a convenient interface for trigger distribution and data +read-out. A whole set of software for monitoring, control and data acquisition +was designed on top and successfully used during an physics run in 2012. +The electronics developed for this upgrade are now in widespread use among +several detector prototypes and experimental set-ups, e.g. for the CBM and +PANDA experiments at FAIR. Here, the TrbNet protocol also serves as the +read-out system. +In this context it was a logical decision to also adapt the network protocol +to the specific needs of these experiments. One important difference is the +time distribution concept that foresees to remove the need for a dedicated +timing signal and thereby reduce the amount of interconnection inside the +system. The optical data transmission system can support the synchronization +of all sub-systems of a detector on the order of nanoseconds. This can be +achieved by implementing messages with a precisely defined propagation +latency. In particular, it is vital to fix all delays introduced in the data +transmission blocks on the transmitter and receiver sides. The length of the +optical cable between two nodes can be evaluated by measuring the round-trip +time of a datagram. The measuring precision of few nanoseconds with +synchronous counters can be increased to below 100~ps using the +well-established FPGA-based TDC technology. +All features have been implemented in the multipurpose TRB3 FPGA platform. We +are going to present the implemented features with a focus on the synergy +between experiments and show first measurements with synchronous networks. -- 2.43.0