I have managed to debug from external flash using my Olimex LPC-E2214 eval board. This involved creating a flash.ini file with the correct BCF0 and PINSEL2 settings. (Thank you Reinhard) I found that I had to specify this file in both the Debug and Utilities tabs. I am now trying to boot exclusively from external flash, I have not been able to manage this, the IVT and startup code remain in on-chip flash. I have tried using the "SET" command in the ASM tab in setup with REMAP and EXTMEM_MODE. This did not seem to have any effect. What am I missing? Thanks Rich