512 vs 256 Compatibility

Discussion created by LUCIO SIMONI on Jul 18, 2006
Latest reply on Jul 19, 2006 by LUCIO SIMONI
I've been working with the A256 for a few years now, but we can't find them in stock anywhere, so we decided to try the DP512 in it's place.  All of the documentation that I could find showed that this should be a drop in replacement.  However, when I go to program the parts, the programmer says that it can't program block $C000.  I am using Metrowerks version 3.1. 
Anything obvious that I'm missing?  Is the 512 a drop in replacement for the 256?