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AR# 61432

LogiCORE IP Gamma Correction v7.0 - Why does the Gamma table update every frame?

Description

Why does the Gamma table update every frame?

Solution

This is a known issue, that can be worked around by writing a 0 to the Gamma_Table_ Update Register (0x100).  

If this register remains 1 it will update every time a TUSER_SOF occurs.


It should also be noted that reading this register will always return a '0' which can cause a pulse to update the Gamma Table to the core.

As a result users should avoid trying to read this register.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
54523 LogiCORE IP Gamma Correction - Release Notes and Known Issues for Vivado 2013.1 and newer tool versions N/A N/A
AR# 61432
Date Created 07/09/2014
Last Updated 07/10/2014
Status Active
Type General Article
IP
  • Gamma Correction