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Altera_Forum's avatar
Altera_Forum
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14 years ago

A strange error

Hi ! When I exactly follow the 《Nios II Hardware Development Tutorial》 to the end of adding contants ( page 1-23 ) , a strange error say " Error: System.cpu: Nios II debug module req...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I set to 20 MHz because my oscillator on development board is 20 MHz .

Seems I need to use pll to rise the frequency ?

But the tutorial say "The

frequency you specify for clk_0 must match the oscillator that drives the FPGA."