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Altera_Forum's avatar
Altera_Forum
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21 years ago

Does a NIOS II need reset?

Folks, I recently began porting my NIOS II design to its final hardware platform from the 1C20 eval board. During this effort, I eliminated reset by assigning it internally to '0'. My ...
Altera_Forum's avatar
Altera_Forum
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21 years ago

> This is not what I suspect from a pin named 'locked'.

Agreed ... but from the Cyclone Device Handbook:

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

Without any additional circuitry, the locked port may toggle as the PLL

begins tracking the reference clock.[/b]

--- Quote End ---

And ... I did actually observed this behavior -- so the pll locked port by itself

is not a good general purpose reset source ;-)

Regards,

--Scott