Inserting EEprom data into the hex file

[d00dajo]

Hi all,

Reading up in the CCS manual, it states that the #rom command can be used to insert data into the hex. Now, I know how to use the #rom to insert data into the program memory. But can I insert EEprom data as well? So that MPLAB will automatically set the eeprom locations to certain data when loading/importing the hex file. The microcontroller in question is the PIC18F4680, with 64 kBytes of ram, so the entire adress space (0x0000-0xFFFF) is used for program memory.

In the manual it states "Purpose:
Allows the insertion of data into the .HEX file. In particular, this may be used to program the '84 data EEPROM, as shown in the following example.
Note that if the #ROM address is inside the program memory space, the directive creates a segment for the data, resulting in an error if a #ORG is over the same area. The #ROM data will also be counted as used program memory space.
Examples:
#rom 0x2100={1,2,3,4,5,6,7,8}
"

Now, the example with #rom 0x2100 does not really clarify how this "eeprom insertion" should work. Im imagining that the eeprom in question in the example is something from some old 16F uC with a program memory address space of <0x2100 and the data eeprom located in adress range 0x2100->upwards. Since the 18F4680 has 64k of memory and the eeprom is not inside regular adress space, I suspect that I cannot use this function to force values into MPLAB.

Anyone who knows how to make the forced insertion?

//DJ

[newguy]

http://www.ccsinfo.com/forum/viewtopic.php?t=22359&highlight=rom+18f

[asmallri]

Here is an example of populating the EEPROM in a PIC18F452.