One .hex file for bootloader and sketch

[sdmeijer]

Make one .hex file for both the bootloader and sketch, so that both can be flashed together onto blank ATMEGA328P-PU's.

[sdmeijer]

How-to: http://forum.arduino.cc/index.php/topic,55245.0.html

[Note to myself] Didn't work

[sdmeijer]

Hex file of sketch can be found, see this post:
http://forum.arduino.cc/index.php/topic,46866.0.html

[baerwolf]

The easiest way is to grab your Chip and proceed the following steps without any other interruption or repeat:

First do an erase
Second install the bootloader
Third install your sketch
Fourth use avrdude to read the whole flash-content back as a hex-file.

[sdmeijer]

http://www.ladyada.net/learn/avr/avrdude.html: Search for "If you wanted to read the eeprom memory into the file "eedump.hex" you would use -U eeprom:r:eedump.hex:i"