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

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

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

PCI device driver--hardware

PCI device driver--test

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

Ethernet-based Device driver

Ethernet-based Device driver

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)

VME I/O device driver

VME I/O device driver

VME I/O device driver

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

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

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") }

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") }

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

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

Thanks