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Altera_Forum
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15 years ago

A_en is 'X' problems

Hi there, i have wrote some VHDL program in QuartusII (10.1)as custom instruction for NIOSII and implemented a SOPC system with Nios II. Then i go to the EDA (eclipse) generate a hallo world progr...
Altera_Forum's avatar
Altera_Forum
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15 years ago

This typically happens when unknown instructions (due to uninitialized memory) are fetched by the master. Make sure your code RAM is being properly initialized for the simulation flow.

I recommend reading though this document to make sure you are not missing a step: http://www.altera.com/literature/an/an351.pdf