Re: Help me for some VMEbus questions.

"Allan R. Batteiger" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>...
> [EMAIL PROTECTED] (xiaobenben) wrote in
> news:[EMAIL PROTECTED]: 
> 
> > Hi all,
> >     I'm a novice in VMEbus. And now I've some questions for
> >     that. 
> > Would you
> > please help me for the following questions?  
> >     1. VMEbus specification refers to the 'termination
> >     networks', does 
> > it mean that it must be used on
> > each end of all signal lines regardless whether these lines
> > is used or not? Or must Open-Collector lines
> > use termination networks, while other driver type lines can
> > omit that? 
> The termination networks should be on the backplane not the 
> individual cards.  Yes all signals must be properly 
> terminated.  Your card may not used them but others might.

So, does it mean that my slave card needn't use these termination networks
for signal lines, even for OC lines, because backplane do?


> >     2. Some signal lines I don't use, can I leave them out?
> >     Or must I 
> > pull them up or down? Such as SERCLK,
> > SERDATA, BR0--BR3 and so on. 
> If you are a slave card you only need to hook up the lines you 
> require. 
> >     3.Is there any example for VME driver in Solaris? For
> >     me, I'll build a Slave board in Solaris, maybe I'll need 
> > to write a VME driver myself.
> >     Thanks for your kind help.
> > 
>   There shoudl be quite a number of VME bus drivers for 
> Solaris.  This is quite a popular OS on VME bus.

Could you please tell me where I can get these VMEbus drivers or some examples?

Thanks again.