Posted on May 17, 2011 at 12:00Hi All,
Can somebody please let me know how to do memory paging that is greater than 64K in uPSD3254BV? We are using Keil to do the fireware. Here is what we set in PSDsoft:
PGM SRACE:
----------
csboot0: 0000-1FFF
csboot1: 2000-3FFF
csboot2: 4000-5FFF
csboot3: 6000-7FFF
DATA SPACE:
-----------
CSIOP: 0000-00FF
rs0: 0100-7FFF
fs0: 8000-FFFF
fs1: 8000-FFFF
fs2: 8000-FFFF
fs3.. etc.
In Keil, specify:
Off-Chip Code Memory:
Eprom: Start: 0x0000, Size: 0x8000
Off-Chip XDATA Memory:
Ram: Start: 0x0100, Size: 0x7F00
We are using the same hex file for all the FS and CSB and have no problems until the hex file hits beyon 64K. Any idea what we did wrong and how to fix this problem?
Any other question is how do we access the 32 SRAMs?
Regards,
SD
