Re: epics dbpf problem

[Benjamin Franksen <benjamin.franksen@bessy.de>]

On Wednesday 15 October 2008 04:24, Shi HaoLi wrote:
>    Now I've built an EPICS (version 3.14.6) application using
> RTEMS(4.6.0), IOC is MVME5500. The peripheral hardware I/O module is PSC.
> The device support(devPSC.c) and the driver support(drvPSC.c) have been
> successfully compiled and can run on RTEMS. Database downloading related
> to PSC is OK, but when I execute dbpf, something wrong happens as
> follows:
>
> Cexp>dbpf ("R4IBT04:CISet", "3.0")
> 0xffffffff (-1)
> filename="../dbTest.c" line number=365
> dbPutField error
> Cexp>dbgf ("R4IBT04:CISet")
> DBR_DOUBLE          3
> Cexp>dbl()
> R4IBT04:CISet
> R4IBT04:I
> R4IBT04:ISet
> ......
>
> any help is appreciated, thanks a lot!

It would help us to help you if you could post the source code of the driver 
and device support (as attachments, please) and also the record instance 
definition (i.e. the relevant part of the db file you loaded into the IOC).

In general, debugging stuff like this amounts to sprinkling your sources 
with printfs to see where things go wrong. It also helps to put assertions 
into the code (which has the nice side-effect of documenting your 
assumptions).

Cheers
Ben
-- 
"Programming = Mathematics + Murphy's Law" (E.W.Dijkstra)