Re: [partial-reconfig] Tristates

[Devadutt <mcs042450@xxxxxxxxxxxxxx>]

Hello,

I too am facing the 'dummy TBUF' error. I had previously tried instantiating the
IOBUFs in the top level entity. This had not solved my problem. As per yilu's 
suggestion, I am now instantiating the IOBUFs inside the reconfigurable module,
which is throwing up the 'dummy TBUF' error. However, now I am getting the
following error for each of the signals in my 32 bit bus (which is named as
'ld'). 

I get the error during ngdbuild of the reconfigurable module.


ERROR:NgdBuild:466 - bidirect pad net 'ld_8_OBUF' has illegal connection.
   Possible pins causing this are:
        pin I on block ld_8_OBUF with type OBUF
		

As per documentation, I have disabled IO insertion for the modules and have
enabled it at the top level.
I am using ISE 6.2. My board is Alpha-Data Virtex II 3000 board.

Is there an error in my instantiating the IOBUFs ?

Thanks & Regards,
Devadutt

On Sat, Jun 18, 2005 at 05:01:09PM +1000, luyi wrote:
> Hi, Neil,
> 
> I instantiated the iobufs inside a reconfigurable module, and made a simple
> controller in that module to control reading and writing process of the
> iobuf. 
> 
> yilu  
> 
> -----Original Message-----
> From: owner-partial-reconfig@itee.uq.edu.au
> [mailto:owner-partial-reconfig@itee.uq.edu.au] On Behalf Of Pittman, Richard
> N
> Sent: Saturday, 18 June 2005 3:46 AM
> To: partial-reconfig@itee.uq.edu.au
> Subject: RE: [partial-reconfig] Tristates
> 
> 
> where did you instantiate the iobufs?  were they inside the reconfigurable 
> module or the top level? 
> 
> Neil
> 
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