Gerhard,

I use ICD2 without enabling "Preserve EEPROM on Program"
I couldn't program EEPROM Data. Do you use ICD2?
How do you program EEPROM data?

thanks

Andre 



-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
Of Gerhard Fiedler
Sent: Thursday, March 08, 2007 4:42 AM
To: piclist@mit.edu
Subject: Re: [PIC]: EEPROM pre-setting directives


Andre Abelian wrote:

> Hi-Tech C example: 
> __EEPROM_DATA(0x01,0x02,and so on);
> 
> in CCS C example:
> #ROM 0x2100={0x01,0x02,and so on}
> address 0x2100 is for 16f876a it might be different for 452.

These options place EEPROM content in the hex file.


> In MPLAB you have to select "Preserve EEPROM on Program"

If you select this option, the above directives will not have any effect.

When "Preserve EEPROM on Program" is selected, MPLAB reads the EEPROM
contents into the EEPROM buffer before programming, overwriting whatever
was in your hex file, and then programs the previous contents back. 

If you want your hex file contents programmed, do /not/ select this option.

Gerhard

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