[avrdude-dev] Keeping EEPROM content during flash write

[Sascha Silbe]

Hi!

To keep the EEPROM content during a flash write, I'm currently using 
three invocations of avrora (read eeprom, write flash, write eeprom 
back). This has the disadvantage that the erase cycle counter (-y) 
doesn't work because it's overwritten by the saved EEPROM contents.
In the hope that avrdude would do the update after the last command, 
I've tried doing this with a single invocation, but since the chip erase 
is executed before the first command (i.e. before the EEPROM read), this 
doesn't work at all.
So how can I have both of
a) keeping EEPROM contents (except the last 4 bytes, of course) and
b) updating the erase-rewrite counter?

CU Sascha

--
http://sascha.silbe.org/

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