I have made a project based on the demo uIP_Demo_IAR_ARM7 and it’s working fine. I am using a SAM7X512, but with the AT91SAM7X256.h and lib_AT91SAM7X256.h files. However, my code is now above 256 Kbytes and and I have tried to find library files for the SAM7X512, but can’t find any. I have modified the AT91C_IFLASH_SIZE and AT91C_ISRAM_SIZE to 512Kbytes and 128 Kbytes and the code above 256 Kbytes runs ok in IAR debug mode, but won’t start after power up. Do anybody know where I can find library files for SAM7X512 (AT91SAM7X512.h and lib_AT91SAM7X512.h) or suggestion why the code won’t start up if code size is larger than 256 Kbytes.