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Altera_Forum
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13 years ago

How can I set initial values for Floating Point Megafunctions??

Hello everyone, I am trying to make IIR filter, which is attached to this thread in pdf, with cyclone III. Since there are some multipliers in floating point, I use FLoating Point Megafunctio...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

It might be that aserting aclr (not connected in your design) changes the behavior. My reading of the Floating-Point Megafunctions users guide however is, that the IP isn't prepared to produce defined output during startup. In this case, you may want to add a multiplexer to the design that feeds zero to the IIR loop for some clock cycles to reset the filter.