Re: [avr-gcc-list] Reading block from EEPROM ?

[Bernard Fouché]

Vincent Trouilliez wrote:

> I tried:
>
> eeprom_read_block( ui_param_status, 0, PARAM_NB);
>
> but it's doing something funky !
> Once I program this into the AVR, and let avrdude reset it, and it runs
> for the first time, it will write 0xFF to all concerned EEPROM
> locations ! But, if I then modify the EEPROM content, and power off/on
> the AVR, it does read the EEPROM correctly, as expected.
>
> I have already started pulling my hair... 
>
>  
Hi Vincent.

Check that avrdude is told not to erase the eeprom before reflashing 
(the default value for flash/eeprom for unset memory is 0xFF). I guess 
your problem is coming from that and not single byte/block read. I don't 
remember the correct avrdude option at the moment however.

 Bernard