if the CARM compiler have the key word define the external data just like "xdata" in 51?
Take a look again to: http://www.keil.com/support/man/docs/ca/ca_userclass.htm Imaging that NVRAM is your external RAM. Of course you may also use 'XRAM' as userclass or any name you want. Reinhard
I do it. thanks alot Reinhard