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The problem of NCO

Altera_Forum
Honored Contributor II
‎04-26-2010 03:55 PM
1,242 Views

Hi! 

I am new to the NCO. 

I meet some problem when I use the NCO,I want to use the NCO to generate a sinusoidal wave and a cosine wave,but the result is not right. 

 

is anyone can suggest me? 

 

thank you in advance!
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Altera_Forum
Honored Contributor II
‎04-27-2010 07:20 AM
249 Views

The value for the phase increment that you input on the phi vector is wrong. It should be the value indicated by the megawizard (85899346).

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Altera_Forum
Honored Contributor II
‎04-27-2010 01:41 PM
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I get it,thank you!

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Altera_Forum
Honored Contributor II
‎06-08-2010 01:01 PM
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which value is entered by user?(signed or unsigned or hex .....)

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Altera_Forum
Honored Contributor II
‎06-09-2010 08:35 AM
249 Views

I'm guessing decimal, but it is probably written somewhere in the NCO datasheet.

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Altera_Forum
Honored Contributor II
‎06-28-2010 07:16 AM
249 Views

thank you so much

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