Many thanks for reply Neil.

Can I please confirm that for programming 2 halves of the 28C256 on load file option that positive offset would be 00000 for programming first half, then postive offset to program second half would be &7FFF.

Hi Does anyone know how to program 2 ROMs, 1 on each half of an Atmel 28C256? For example with. A 27C256, selecting 'Program' gives the option of specifying start and end addresses. With Atmel 28C256 selecting 'Program' does not give this option, only 'Split'. I am using a Dataman 40 Pro with latest...