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, "$(user):myaoExample") {
field(DTYP, "MVME512board")
field(OUT, "#C0
field(SCAN, "Passive")
field(LINR, "LINEAR")
field(ESLO, " ") #20.0/0xFFF
field(EGUF, "10.0")
field(EGUL, "-10.0")
field(OMSL, "closed_loop")
field(DOL, "$(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
field(SCAN,"Passive")
field(LINR, "LINEAR")
field(ESLO, " ") #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