Hi, I have a C164 application with 32k NDATA and 16k NCONST. Where DPP0 is used for NCONST and DPP1 and DPP2 used for NDATA. Furthermore I have located the user stack at the end of the DPP2 segment using the SECTIONS directive. My question, is the NOFIXDPP directive still required? If no, how can I avoid to use this directive? µVision seems to add this directive automatically after using DPPUSE. I didnt found any option in the target dialog. Thx for your help. Bert PS: Yes, I have read the appnote "L166: ACCESSING THE USER STACK VIA DPP2"