Nios® V/II Embedded Design Suite (EDS)
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just trying to get something running.

Altera_Forum
Honored Contributor II
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Sorry in advance for the basic question. 

 

I am simply trying to run the Nios II custom instruction tutorial on a Cyclone II part. There is no .sof file for the Cyclone II so I synthesized one. When I return to the Nios IDE and attempt to compile and run the software program I get the following message: 

 

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00 

Pausing target processor: OK 

Reading System ID at address 0x00010808: verified 

Initializing CPU cache (if present) 

OK 

 

Downloading 00200000 ( 0%) 

Downloaded 55KB in 0.9s (61.1KB/s) 

 

Verifying 00200000 ( 0%) 

Verify failed between address 0x200000 and 0x20D8DB 

Leaving target processor paused  

 

I'm looking for help on debugging this, I'm not even really sure where to look to find out about the bootstrap process between the core and the Nios IDE, but I would like to learn what's actually going on. If someone could point me in the right direction I would appreciate it a lot. Thanks.
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