AR# 23091

LogiCORE FIR Compiler v1.0 - Why are my outputs incorrect when using a random input for the ND signal in a multi-channel decimation half-band fully parallel filter generate for Virtex-4?

Description

Why are my outputs incorrect when using a random input for the ND signal in a multi-channel decimation half-band fully parallel filter generate for Virtex-4?

Solution

There are 2 ways to work around this problem and ensure that the output remains correct: 

 

1. Use the CE port instead of ND. 

 

2. Halt the input data only when a sample from all channels has been received.

AR# 23091
Date 05/20/2014
Status Archive
Type General Article