Experimental Physics and
Industrial Control System

Matthias Clausen DESY -MKV2/KRYK- <[email protected]> · Thu, 22 Aug 1996 16:45:20 +0200 (MET-DST)

>Hideos uses one "standard model" for supporting IP cards providing you
>are using C++ and an MVME162

Some comments on Hideos:

If you use IP modules which directly handle analog and digutal signals like those used for 
the IRM you probably are better off using the direct access to the memory of the IP than 
using an indirect way through an intermediate system. This implies that a general solution 
has to take into account that there are different flavours of boards - some you directly 
access and some ( like serial communication boards) that are better handeled by a 
dedicated CPU to take care of all te asynchronous interrupts. In the latter field you are 
using packages like HIDEOS or CDI.
An additional thought should be spent on the usage of drivers you provide for one ore the 
other package. You probably want to be able to run the same driver - and save development 
efford - regardless whether you run it on a dedicated CPU ( through HIDEOS or CDI) or on 
the same CPU. (which to the best of my knowledge is only possible with CDI)
This design feature of CDI did help us a lot when we ported our CAN driver with the CAN IP 
to the PC hardware with the IP on a ISA /IP carrier board.

We should get some more input on this from other users of IP modules.

Matthias

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System