AR# 29572

LogiCORE FIR Compiler v3.0 - 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?

Description

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?

Solution

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.

AR# 29572
Date 05/20/2014
Status Archive
Type General Article