Hi Rick,

on 10MHz you can use the 70ns device. For exact calculation you must look on the 80C390 data sheet.

Also copy Flash to RAM was no problem. E.g. to copy 0x2000 bytes from 0x1000 onthe Flash to 0x0000 on the RAM:

#include <string.h>

memcpy( (char xdata *) 0x000, (char code *) 0x1000, 0x2000 );


But then you must disable the Flash and enable the RAM as code space. How this can be done can only tell you the hardware manual of your board.


Peter