LogiCORE FIR Compiler V2.0 - When I select multiple coefficient sets I get zero filter output
Description
When I have multiple coefficient sets, I get zero filter outputs. Why?
Solution
This problem occurs when a filter is built that has the following characteristics:
- uses multiple coefficient sets
- is symmetric
- requires multiplier MAC engines
- is targeted at the Spartan family in which the output from the filter is zero
The solve this problem, make sure the filter response is set to "non_symmetric" even if the coefficients are symmetric.