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AR# 60972

PetaLinux 2014.2 - MicroBlaze D-Cache in Writeback Mode Causes No Output in FS-BOOT Application

Description

My MicroBlaze-based system configured the D-cache to use writeback mode. 

In this configuration, I see no output from the FS-BOOT application.

Solution

Using writeback with the D-cache prevents the API call XCACHE_DISABLE_CACHE() from working.

This API call is commonly used in standalone applications. 

To allow FS-BOOT to output to the console, disable writeback mode for the D-cache.
AR# 60972
Date Created 06/04/2014
Last Updated 06/13/2014
Status Active
Type General Article
Tools
  • PetaLinux - 2014.2