Re: Help me for some VMEbus questions.

[EMAIL PROTECTED] (xiaobenben) wrote in
news:[EMAIL PROTECTED]: 

> "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? 

That is correct.

> 
> 
>> >     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? 
I would think a google search would turn some up.  Or call SUN 
and see if they have any sample sources for Solaris they can 
give you.

> 
> Thanks again.
> 



-- 
Allan R. Batteiger
Real-Time Services Inc.
[EMAIL PROTECTED]