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RTEMS Experiences at SSRL (continued)

RTEMS Experiences at SSRL (continued). Introduction Building/Booting Available EPICS Support Wish List. Introduction. Currently at RTEMS 4.6.0pre2 We no longer build for VxWorks Building RTEMS is complicated …but using is easy OSI layer makes porting from VxWorks almost trivial.

byron-maynard
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RTEMS Experiences at SSRL (continued)

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  1. RTEMS Experiences at SSRL (continued) • Introduction • Building/Booting • Available EPICS Support • Wish List EPICS Meeting June, 2003

  2. Introduction • Currently at RTEMS 4.6.0pre2 • We no longer build for VxWorks • Building RTEMS is complicated • …but using is easy • OSI layer makes porting from VxWorks almost trivial EPICS Meeting June, 2003

  3. Building RTEMS at SSRL • Tools and libraries • Unbundled RTEMS applications • Create symbol list used in system image link • System image used by all IOC • Not all libraries included • Include some unbundled apps like Cexp • Don’t use routines (rtems_init and rtems_netconfig) delivered in base/src/RTEMS Building is complex - Till’s README files helpful EPICS Meeting June, 2003

  4. RTEMS Unbundled Apps • C Expression Interpreter (Cexp) (our “shell”) • Telnet • NFS • Monitor EPICS Meeting June, 2003

  5. RTEMS Boot • System image loaded • Initialization task • Also loads symbol file • Runs common non-EPICS startup script to load other unbundled apps, set TZ, start tasks, etc • Then runs EPICS app startup script identified in NVRAM which loads app image and initializes EPICS • Left at Cexp prompt – at this point, usage similar in concept to VxWorks EPICS Meeting June, 2003

  6. EPICS/RTEMS Support Available at SSRL • IPAC – CANBus, Acromag, Hytec • BitBus Controller • GPIB – LAN and Termios • Echotek Digital Receiver • AB EtherIP • Generic Transient Recorder • Bumpless Reboot Restore • Sequencer • Soon – General Standards PMC EPICS Meeting June, 2003

  7. Wish List • osiDevLib – layer on top of VME/VXI (return errors for soft IOCs) • devStats – CPU health status monitor like [VX,vx,Vx,vX]Stats • epicsOSversion – get OS class and version as string • osiTS – periodic NTP sync and timestamp update like soft time slave IOC in VxWorks’s drvTS • Routine to show boot parameters • BTW, include files under base/src/vxWorks/src should be installed in base/include/os/vxWorks EPICS Meeting June, 2003

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