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PIC 18F252 programming problem

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carrotts

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I am trying to program a PIC18F252's Data EEPROM area. I have a USB programmer from Quasar Electronics. I write my code in Crownhill proton + and use the EDATA command. This creates Data to be stored in data eeprom at programming. When I load the resultant hex file into my programmer software I get my data bytes seperated by nulls. Is there any way of altering the hex, or do I have to wait for an update to the programmer software.

Cheers Carrotts
 

The 18F252 is a 16 bit device, you have to devine EEPROM data as WORDS using DW instead of BYTES that were defined using DB.

You can still access the high byte using LABEL + 1
For instance

DFIRM DW 00103H ; FIRMWARE RELEASE 3
DREV EQU DFIRM+1 ; REVISION: 1

When read from the EEPROM, DREV contains 1 and DFIRM contains 3.
I hope this helps.
 

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