Programmable Devices
CPLDs, FPGAs, SoC FPGAs, Configuration, and Transceivers
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connecting RUnLU to internal pullup ?

Altera_Forum
Honored Contributor II
‎07-03-2010 07:51 AM
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Hello,  

 

I am implementing remote update for Stratix II with AS configuration.  

 

The MSEL pins on my board are connected properly, but unfortunately the RUnLu pin is left unconnected.  

 

This pin should be driven high in remote update AS configuration scheme. 

 

I am tring to figure out whether it is possible to internaly connect RUnLU pin to weak pull up, without introducing changes to the board?  

...I can't find the answer.  

 

Thanx,  

Any comments are welcome
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Altera_Forum
Honored Contributor II
‎07-06-2010 01:19 PM
323 Views

Hi all,  

No replies so far... 

 

Mean while I was pointed out that the stratix on my board has it's nI\O_PULLUP pin driven low so according to STRATIX2 Handbook book this should provide weak pull up for RUnLU pin before and during configuration.  

 

So it seems as the trubbles with remote update were not due to RUnLU pin left floating...  

 

I still would Like to Know, If there is any one who has experience with remote update configuration with AS scheme. And how did they connect RUnLU pin.  

 

Thnaks.
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