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<== Date ==> <== Thread ==>

Subject: Re: problems with OMS motor controller and power pc cpu board mv2306
From: [email protected] (William Lupton)
To: [email protected], [email protected]
Date: Wed, 7 Apr 1999 10:39:19 -1000
Werner,

I haven't seen any responses to this, so I'll jump in!

You wrote:
>During initialization I get the error message that _excStub and
>_excIntStub are not in the symbol table. 
>With the mv167 board these two symbols are defined in vxWorks.
>In the case of the mv2306 these two symbols (and perhaps others, too)
>are not defined in vxWorks.

Right. The errors come from within devLib but are in fact only warnings.
The code is following the list

{"excStub", "excIntStub", "unsolicitedHandlerEPICS"}

looking for an existing entry point. On the Power PC, it doesn't find the
first two but does find the last. I think (Jeff Hill might care to comment)
that it would be fine simply not to search for the first two on the Power PC.

>Because of the different architecture there might be other functions.
>But, how are they called?
>Has somebody modified a driver for the mv2306 board? 
>Has somebody experience with interrupt handling on a mv2306 board?

We are using mv2303 and mv2307 boards (the mv2306 is just a mv2307 with
less memory, right?). We don't yet have much experience with device
access but are actively working on porting our control systems from
M680x0 boards. I don't think we expect properly-written drivers to need
changes when moving between architectures. Kevin Tsubota
([email protected]) is doing this work and you might want to
contact him directly.

William

--------------- William Lupton ([email protected]) ---------------
Home: PO Box 7135,           Work: W. M. Keck Observatory, 65-1120 Mama-
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      (808) 885 3475               (808) 885 7887, (808) 885 4464 (fax)

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