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NIOS with Configuration via Protocol (CvP) Design

Altera_Forum
Honored Contributor II
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I am currently working to implement a NIOS on a CvP design on the Peripheral portion.  

 

I've taken the .sof, which contains the peripheral and core portions of my CvP design and loaded it onto my Stratix 5. 

 

I am running into issues when attempting to run my application, I get the error: No Nios II target connection paths were located. Check connections and that a Nios II .sof is downloaded. 

 

After seeing this failure, I stripped down my project to just the NIOS II, and it runs a hello world application fine using the same clk and reset pins. 

 

Does anyone have any idea on what could be going on? 

 

Thanks.
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Altera_Forum
Honored Contributor II
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Hi, 

 

Recompile the project with the CvP mode disabled, to generate a new .sof and try. 

or try with the reference design. 

https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/ug/ug_cvp.pdf 

 

Best Regards, 

Anand Raj Shankar 

(This message was posted on behalf of Intel Corporation)
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Altera_Forum
Honored Contributor II
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I've disabled CvP, regenerated my .sopcinfo, and recompiled my project. Now the NIOS is working, so that is a step in the right direction. 

 

Are there any special settings that need to be configured for NIOS to run with CvP enabled?
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Altera_Forum
Honored Contributor II
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Hi, 

 

Kindly check the link session "FPGA Configuration using CvP". 

Also, refer to the design examples. 

 

Best Regards, 

Anand Raj Shankar 

(This message was posted on behalf of Intel Corporation)
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Altera_Forum
Honored Contributor II
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Anand, 

 

Sorry for being unclear, but my design was already working with CvP enabled. I am currently wanting to add a NIOS to the peripheral portion of the design, but once I do, the NIOS EDK cannot find the NIOS core.
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