MON51 Memory Considerations

[kyle86]

my mon51 cant work,
i using atmel86S8252
1 internal flash memory 8k, and 1 external static ram 32k (RD/ and PSEN/
signals connect to RD/ signal for the RAM)
Install.bat "0 3f 0"
Install.A51 "INT_ADR_OFF EQU 0H"
startup.A51 "CSEG AT 0"
In keil uversion option:
off-chip Xdata memory:
ram start : 0x0000
size : 0x7fff

my setting correct? for the code memory and xdata memory?

 

[waterman]

FYR

If you don't need XDATA to store your volatile data,
I suggest you map SRAM into 0x8000~0xFFFF.
By doing this, the max code for your program
will be 32Kbytes.

If you map SRAM into 0x0000~0xFFFF, the first
8Kbytes can not be used for program code in
your case. You have let /EA = 1 for enabling the
internal flash as program ROM.