Hi Henry,
I believe that the best thing to do is to declare several eeprom sections and linking objects containing the eeprom variables in those sections. This will let you not only fine tune the .eeprom section but also use .feeprom section and any D-flash.
For example, imagine that you have partitioned your D-flash so 2 sectors are used as dflash and the rest as EEE.
Your linker script could be:
+seg .feeprom -ds10 -b0x100000 -o0x800 -m0x100 -n.dflash1 # 1 block of dflash
dflash1.obj
+seg .feeprom -ds10 -b0x100100 -o0x900 -m0x100 -n.dflash2 # 1 block of dflash
dflash2.obj
+seg .feeprom -ds10 -b0x13F800 -o0x800 -m0x400 -n.fareee # 1k of paged eee
fareee.obj
+seg .eeprom -b0x13FC00 -o0xC00 -m0x300 .nneareee1 # 0.75k non paged eee
data1.obj
+seg .eeprom -b0x13FF00 -o0xF00 -m0x100 .nnearee2 # 0.25k non paged eee
data2.obj
Attention should be paid to the correspondance of the -b global address and the -o for Local address.
The -m is very useful to detect when you are going out of boundary with the segments. (have a read to the linker document to understand better)
Your object files should contain the Only eeprom data structures. For example
- Paged :
dflash1.c
@far @eeprom myVar
- Non paged
data1.c
@eeprom myOtherVar
I hope it helps
Pedro
