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Altera_Forum
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11 years ago

FIR and CIC MegaCores Altogether

Hi, I have instantiated FIR II MegaCore as a Pulse-Shaping and upsampling by 8 filter, now I want to use CIC MegaCore after FIR to interpolate the signal... I didn't use Back Pressure feature in...
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Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

I solved it KAZ :D

I did what you suggested... using FIFO... You are GENIUS!

So this is the new configuration:

https://www.alteraforum.com/forum/attachment.php?attachmentid=10278

And SignalTap shows exactly what I want:

https://www.alteraforum.com/forum/attachment.php?attachmentid=10279

To satisfy ourselves... here is the signal before interpolation (RRC output):

https://www.alteraforum.com/forum/attachment.php?attachmentid=10280

And this is after interpolation:

https://www.alteraforum.com/forum/attachment.php?attachmentid=10281

Thank you again :)