Keyword: LLRF
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WCO101 Drivers and Software for MicroTCA.4 controls, interface, Linux, hardware 1
 
  • M. Killenberg, L.M. Petrosyan, Ch. Schmidt
    DESY, Hamburg, Germany
  • T. Kozak, P. Prędki, J. Wychowaniak
    TUL-DMCS, Łódź, Poland
  • S. Marsching
    Aquenos GmbH, Baden-Baden, Germany
  • M. Mehle, T. Sušnik, K. Žagar
    Cosylab, Ljubljana, Slovenia
  • A. Piotrowski
    FastLogic Sp. z o.o., Łódź, Poland
 
  The MicroTCA.4 crate standard provides a powerful electronic platform for digital and analogue signal processing. Besides excellent hardware modularity, it is the software reliability and flexibility as well as the easy integration into existing software infrastructures that will drive the widespread adoption of the new standard. The DESY MicroTCA.4 User Tool Kit (MTCA4U) comprises three main components: A Linux device driver, a C++ API for accessing the MicroTCA.4 devices and a control system interface layer. The main focus of the tool kit is flexibility to enable fast development. The universal, expandable PCIexpress driver and a register mapping library allow out of the box operation of all MicroTCA.4 devices which carry firmware developed with the DESY FPGA board support package. The control system adapter provides callback functions to decouple the application code from the middleware layer. Like this the same business logic can be used at different facilities without further modification.  
slides icon Slides WCO101 [0.760 MB]  
 
WCO204 A Prototype Data Acquisition System of Abnormal RF Waveform at SACLA database, operation, controls, GUI 19
 
  • M. Ishii, M. Kago
    JASRI/SPring-8, Hyogo-ken, Japan
  • T. Fukui
    RIKEN SPring-8 Center, Innovative Light Sources Division, Hyogo, Japan
  • T. Maruyama
    RIKEN/SPring-8, Hyogo, Japan
  • T. Ohshima
    RIKEN SPring-8 Center, Sayo-cho, Sayo-gun, Hyogo, Japan
  • M. Yoshioka
    SES, Hyogo-pref., Japan
 
  At SACLA, an event-synchronized data acquisition system had been installed. The system collects shot-by-shot data, such as representative point data of the phase and amplitude of the rf cavity pickup signals, in synchronization with the beam operation cycle. In addition, rf waveform data is collected every 10 minutes. However a collection with several minutes cycle couldn’t catch an abnormal rf waveform that suddenly occurs. To overcome this problem, we have developed a system to capture waveform when some abnormal event occurs. The system consists of the VMEbus systems, a DAQ server, and a NoSQL database system, Cassandra. The VMEbus system detects an abnormal rf waveform, collects all related waveforms with same shot and sends to a DAQ server. All waveforms are stored Cassandra via the DAQ server. The DAQ server keeps data for 2 seconds from current time on memory to complement Cassandra’s eventual consistency model. We constructed a prototype DAQ system with a minimum configuration and checked its performance. We report the requirements and structure of the DAQ system and the test results in this paper.  
slides icon Slides WCO204 [1.426 MB]