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Altera_Forum
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20 years ago

NIOS II reset

Dear everybody, My goal is to reset NIOS II. NIOS II owns the reset_n input and I drive this input with a signal ON-OFF-ON where the OFF state lasts 20 us with the clk signal always present...
Altera_Forum's avatar
Altera_Forum
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20 years ago

Alessandro:

I am having the exact same problem. I have the the SOPC system, a PCI-X bridge, and several other components. I need to reset everything on a PCI reset, or reset the SOPC system and several components when I get a specific message from the PCI-X. I have tried making the reset as long as a second, or as short as less than one microsecond. The result is always the same--the NIOS II refuses to start afterwards.

The strange thing is: when I get a PCI reset (resetting everything) it works fine.

The NIOS II is booting from internal memory.

Let me know if you find a solution.