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Altera_Forum's avatar
Altera_Forum
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16 years ago

alt_tick() never exits

I'm having all sorts of problems adapting an existing design to run under v9.1. I have a cut-down design that runs, and now I'm trying to add another component to the SOPC, but with bizarrely random ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I had the same problem, I believe it is due to the tick interrupts coming in faster than the NIOS can process them. You can prevent the interrupts from starting by copying the file alt_main.c from the bsp project into your application project and commenting out the following line.

alt_irq_init (NULL);

This will prevent all interrupts from being initialized. Another solution should be to slow down the timer so the NIOS is not overloaded with interrupts.