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EPIC Device Support Ethernet Scope

Easy to conform to the Ethernet standard. Portability Driver is ... 2 mV 10 V/div fully variable. clock accuracy <= 10 ppm. interpolator resolution = 5ps ...

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EPIC Device Support Ethernet Scope

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    1. EPIC Device Support Ethernet Scope

    2. LeCroy Benefits

    Faster network communication than GPIB Easy to conform to the Ethernet standard Portability – Driver is based on BSD4.3 network sockets.

    3. LeCroy LT364 Specification

    Sample Rate 500 MS/s using 4 channels 1 GS/s using 2 channels Sensitivity 2 mV – 10 V/div fully variable clock accuracy <= 10 ppm interpolator resolution = 5ps Computing Hardware Power PC @ 160 MHz 16 MB RAM 10Base-T, GPIB, serial port

    4. Topology

    EDM Scope Scope Ethernet

    5. Database Records Functionality

    reset loading / saving panel setup link status & recovery disabling of channels voltage / time divisions waveform timestamps

    6. Record Support

    asynchronous (parallel) vxWorks task spawn/message queue Each scope assigned a task Scope C Client Scope B Scope A Task A Task B Task C IOC

    7. Parallel 10Hz and 4Hz

    Scope C Client Scope B Scope A Task A Task B Task C IOC 4Hz 10Hz

    8. Parallel 10Hz and 10Hz

    Scope C Client Scope B Scope A Task A Task B Task C IOC 10Hz 10Hz

    9. Record Support Continued

    Macro definitions for multiple scope support mbbi/mbbo obtained from driver to allow for different driver configurations Recover link to recover from network disruptions

    10. IOC Benchmark

    0 clients = 25% CPU 1 client = 35% CPU 6 clients = 42% CPU MVME 2100 , Power PC @ 200MHz 5 scopes w/ 4 waveforms each = 20 waveforms (1000 point) Updating @ 6 Hz Results

    11. EDM Screen

    12. Contacts

    Seth Nemesure……seth@bnl.gov Sheng Peng………..peng@bnl.gov Larry Hoff…………..hoff@bnl.gov

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