Hello All,

Do you know if VxWorks 5.4, for PPC603 really enables cache if MMU is disabled (INCLUDE_MMU_XXX is not defined), but caches are enabled? I am using BAT entries to mark parts or RAM to control cachability.

The main problem I have is that with MMU as well as Data Cache enabled, my vxworks hangs (sometimes before giving me the prompt, and sometimes after giving me the shell prompt). I am trying to isolate the issue and wanted to make sure if caches are enabled if I dont use MMU.

Thanks for all the responses.
- Sameer