Why is the output of my symmetrical interpolate by ten filter incorrect when I use the full-parallel implementation with an odd number of coefficients?
This issue is resolved in the FIR Compiler v.3.1.
This issue is due to a bug in the output buffer.
You can work around this issue by changing any of the following parameters:
- Change the coefficients from an odd number to an even number
- Change the symmetry to non-symmetrical
- Change the interpolation rate to something other than ten
See (Xilinx Answer 29138) for a detailed list of LogiCORE FIR Compiler Release Notes and Known Issues.