Re: Utter Newbie: Can't get simple app going!

[Russell Kackley <r.kackley@jach.hawaii.edu>]

We use EPICS 3.13.8 on VxWorks here, so there might be differences when 
running 3.14.9 on a Linux IOC, but here is what I can suggest.
>    This is the resulting .db file:
>
>    record(bo, XPP:PP:BO:SC ) {
>      field(DESC, "Shutter Control")
>      field(DTYP, "ACROMAG-445")
>      field(OUT, "@bi0 P0 B0")
>      field(ZNAM, "Open")
>      field(ONAM, "Closed")
>    }
We generate our .db files from capfast and sch2edif, but our .db files 
have the record names enclosed in double quotes. It is possible that those 
quotes aren't necessary.
> 7.  Run my IOC:
>
>    ./st.cmd
>
>    I get an error in the dbLoadRecords line:
>
>    dbLoadRecords("db/xppPP.db")
>    filename="../dbLexRoutines.c" line number=955
>    Bad Field value dbPutStringError.
>    Parsing ')'
>       in file db/xppPP.db line 3
>    db_parse returned -1
Your .db wants to use a bo record with DTYP = ACROMAG-445. For this to 
work, before you use dbLoadRecords, you have to use a dbLoadDatabase 
command that loads a .dbd file to tell EPICS how to handle a bo record 
with DTYP=ACROMAG-445. Your .dbd file would contain something like this:
device(bo,INST_IO,...,"ACROMAG-445")
driver(...)

There is some other stuff that needs to be in the .dbd file, but I don't 
have that handy right now. The "..." you have to fill in based on what is 
in the ACROMAG driver code.
>    Because my file is already expanded and contains no substitutions,
>    I think I can load it with dbLoadDatabase().  I tried that, but
>    the entire IOC died:
>
>    dbLoadDatabase("db/xppPP.db")
>    Thread _main_ (0x9a68098) can't proceed, suspending.
I am pretty sure that dbLoadDatabase can't be used to load records. I 
think it is only used to load a "database definition file", so that it is 
why the IOC is getting killed by your command. Hope this helps you.
--
Russell Kackley
Joint Astronomy Centre
Hilo, Hawaii