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Author Topic: Where I can find bootloader (.hex file) for microcontroler ATmega 32u4?  (Read 1662 times)
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I did a board based on Arduino Leonardo with microcontroller 32u4. I want burn the bootloader by ISP, but I can not find the bootloader file.
Do you know where I can find this file?

Thanks a lot!
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Attached

* Leonardo-prod-firmware-2012-04-26.hex (75.91 KB - downloaded 102 times.)
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I did a board based on Arduino Leonardo with microcontroller 32u4. I want burn the bootloader by ISP, but I can not find the bootloader file.
Do you know where I can find this file?

Thanks a lot!

Well in my windows XP system running IDE 1.0.4 the bootloader file named:

 Caterina-Leonardo.hex

is located at:

C:\Documents and Settings\Primary Windows User\My Documents\My Programs\Arduino\arduino-1.0.4\hardware\arduino\bootloaders\caterina

Lefty
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Great!
Thanks!
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Or just use the bootloader that comes with the part from Atmel?

"– Optional Boot Code Section with Independent Lock Bits
    In-System Programming by On-chip Boot Program
    True Read-While-Write Operation
    All supplied parts are preprogramed with a default USB bootloader"
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
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