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Altera_Forum
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14 years ago

Flashed NIOS II SOPC not working?

Hi, I have developed an NIOS II sopc with multiple custom components. System works absolutely fine whilst operating in NIOS SBT for Eclipse (Debug or Run mode). However when I flash both sof &...
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Altera_Forum
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14 years ago

Hi Dave,

I haven't tested my SOPC components using the Avalon Verification IP Suite. I had assumed they were OK since the system worked 100% in Debug/Run mode but not with EPCS boot. Is this not the case?

I just found the solution to my problem on the forum, see link below;

http://www.alteraforum.com/forum/showthread.php?t=24156

My problem related to the JTAG UART SOPC component used by the Debugger and as suggested by RichardA, setting Stdin, Stdout and Stderr all to 'none', in the BSP editor, allowed the processor to run at power up. I can only assume that the JTAG UART's IRQ (0) was hanging my code and preventing system operation.

Thanks for your suggestion and offer, much appreciated.

Ken.