Hi Peter,

There may be many solutions to the same problem. The solution I've encountered perhaps isn't the best one, but works correctly.

Requirements were the following (assuming the need for a single address space):
1.ROM must begin at 0000h, and must contain monitor for downloading compiled / assembled programs to data memory.
2.Assembled programs should be loaded by monitor at 8000h and started from monitor. These execs should sometimes use procedures from code memory.
3.Compiled C programs… I'm not too much experienced with Keil's C, and I'd like to know how to compile / link for the starting address different from 0000h.
4.Development system should communicate with PC through a serial port.
And finally:
5.Project of this system is over years ago (VETS), I've been testing it only. However, there is a new project, hardware is (almost) finished but software not yet, and if I find it interesting at some point, I might send a description.

I say again, not the best solution, but one of many. However, thanks for help!

Best wishes,
Ivan