Hi,

In fact, the EPROM party is not just a serial loader.
I would like to make it to work as a "bios" system.

I need to load the application part (FLASH) by modem.
The modem will be used by the loader and by the application. That's why I need to share some buffers and variables.

"compiled and linked with the applications code all in one program"
=> I have thought of doing this, but I am afraid of problems if I change the EPROM (my "bios" system). Because I may update the EPROM.The EPROM is not actually fix. Maybe I need to change it sometimes (not frequently)

Question:
What I can't change or what I need to garantee, in order of changing (updating) in EPROM don't affect the FLASH.

I mean: to have the same CODE MAP and DATA MAP for the old versions.