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How can I boot NIOS from EPCS for Cyclone III with Quartus 10.0?

Altera_Forum
Honored Contributor II
‎02-11-2011 05:29 AM
1,006 Views

When I configure CIII in Quartus 10.0, I can't set the DCLK, ASDO, FLASH_NCE as regular I/O in Assignment->Device. DCLK can only be selected as "use as programiming pin", and the other two can only be "as input tri-stated". If I connect the pins of NIOS2 EPCS_Controller to them, I always receive "Error: can't place multiple pin" during complie->fitter step.  

It seems that in EPCS_Controller, DCLK is output, but it cannot be located at the pin of dedicated configure pin. 

Can anybody tell me what should I do, just leave them floating? 

Thank you. 

 

Derek
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Altera_Forum
Honored Contributor II
‎02-12-2011 01:21 AM
314 Views

This is a known bug in the Quartus II 10.0 GUI. You can set the pins to user I/O by editing the settings file manually. Check out this thread (http://www.alteraforum.com/forum/showthread.php?t=24146&highlight=quartus+10+user+i%2fo) for more details.

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Altera_Forum
Honored Contributor II
‎02-12-2011 09:09 AM
314 Views

Your reply saves me a lot of time. Thank you very much.

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Altera_Forum
Honored Contributor II
‎02-27-2011 06:03 PM
314 Views

same here tnx

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