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AR# 24759

12.1 EDK - When I use the FPU in a PPC design, there seem to be random interrupts

Description

When I use the FPU in a PPC design, there seem to be random interrupts. Is there a solution?

Solution

To work around the problem, use a dummy exception handler:

#include "xexception_l.h"
:
:
main()
{
XExc_Init()
:

Using the XExc_Init function will call in a "do nothing" handler for every exception.

This problem affects all versions of the core.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
34609 12.x EDK - Master Answer Record List N/A N/A
AR# 24759
Date Created 09/04/2007
Last Updated 12/15/2012
Status Active
Type General Article
Tools
  • EDK - 12.1
IP
  • Floating-Point Unit for the PowerPC (Single Precision)