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EPICS Seminar: Developing Device Drivers for PCI, ISA, and VME on Linux and VxWorks

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This seminar presents an overview of developing device drivers for PCI and ISA devices on the Linux platform, specifically using Redhat 7.1 and EPICS base release 3.14.alpha02/01. It includes remote device driver implementation via Ethernet and VME I/O device driver details with VxWorks 5.31. The session covers practical application development, including test drivers, asynchronous device drivers, and example databases related to specific hardware setups, including A/D and D/A configurations with various communication standards.

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EPICS Seminar: Developing Device Drivers for PCI, ISA, and VME on Linux and VxWorks

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Presentation Transcript

  1. EPICS APPLICATION DEVELOPMENT EPICS Seminar Presented by SHIFU XU ,IHEP 20 August 2002

  2. Outline • PCI & ISA device driver on Linux Platform • Remote device driver via Ethernet • VME I/O device driver on vxWorks • Application to develop

  3. PCI & ISA device driver • OS:Linux Redhat 7.1 • EPICS base release:3.14 alpha02/01 • ISA board:PC6310 A/D,12bits,32 channels • PCI board:PCI8020 • 12bits A/D,8 channels (bipolar) • 8bits D/A, 2 channels • 0~5v unipolar or -5v~+5v bipolar (AI) • Conversion time < 10us

  4. PCI device driver--hardware

  5. PCI device driver--test

  6. Ethernet-based Device driver • Asynchronous Device driver • IOC 3.13 • OPI MEDM • vxworks5.31, tornado1.01 • compiler:ccppc • gmake

  7. Ethernet-based Device driver

  8. Ethernet-based Device driver

  9. VME I/O device driver • Sun solaris 2.8 + Torado 2.02 • vxWorks 5.4 • MVME2431 cpu board • MVME512—004 I/O module • 12bits D/A, 2 channels • 16bits A/D, 16 channels (bipolar input)

  10. VME I/O device driver

  11. VME I/O device driver

  12. VME I/O device driver

  13. Files involved • devM512.c, drvM512.c • mydbExample1.db, mydbExample2.db • exampleApp.dbd • st.cmd • Makefile

  14. exampleApp.dbd • include "base.dbd" • device(ai,VME_IO,devAiM512,"MVME512board") • device(ao,VME_IO,devAoM512,"MVME512board") • driver(drvM512)

  15. mydbExample1.db record(ao, "$(user):myaoExample") { field(DTYP, "MVME512board") field(OUT, "#C0 S1 @") field(SCAN, "Passive") field(LINR, "LINEAR") field(ESLO, "0.00488281") #20.0/0xFFF field(EGUF, "10.0") field(EGUL, "-10.0") field(OMSL, "closed_loop") field(DOL, "$(user):calcExample.VAL NPP NMS") field(HOPR, "10") field(LOPR, "-10") }

  16. mydbExample1.db(cont.) record(ai, "$(user):myaiExample") { field(DTYP, "MVME512board") field(INP, "#C0 S0 @") field(SCAN,"Passive") field(LINR, "LINEAR") field(ESLO, "0.00030518") #20.0/0xFFFF field(EGUF, "10") field(EGUL, "-10") field(HOPR, "10") field(LOPR, "-10") }

  17. st.cmd cd "/export/home/xusf/epicsapp/512/bin/ppc604" ld < iocCore ld < seq ld < exampleLib cd "/export/home/xusf/epicsapp/512/iocBoot/iocm512" dbLoadDatabase("../../dbd/exampleApp.dbd") dbLoadRecords("../../db/mydbExample1.db","user=xusf") dbLoadRecords("../../db/mydbExample2.db","user=xusf") drvM512Verbose=(short)1 devM512Verbose=(short)1 iocInit

  18. Our plan • CAN bus device driver based on VME • Controlnet device driver based on VME or via ethernet

  19. Thanks

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