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AR# 18145

6.1 EDK - Base System Builder (BSB) - OCM-only designs require a linker script or a change to the program start address

Description

Keywords: EDK, EST, BSB, OCM Only, linker script, start

Urgency: Standard

General Description:
When the BSB creates a design containing only OCM memory, the default addresses do not match the default linker script address.

Solution

The OCM address must be modified to include the PPC Reset Vector 0xFFFFFFFC.

For example, if the IOCM size is 16K, then user should change the IOCM address to 0xFFFF_BFFF - 0xFFFF_FFFF.

These changes must be made after the system has been generated. BSB does not provide a mechanism for modifying the address.
AR# 18145
Date Created 09/29/2003
Last Updated 03/07/2006
Status Archive
Type General Article