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Author Topic: Atmega32u4  (Read 1875 times)

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Offline stjTopic starter

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Atmega32u4
« on: August 23, 2016, 09:38:32 pm »
can somebody upload the factory bootloader and fusebyte settings please?

i got a bunch cheap from china, but it seems they are intended for repairing arduino boards and the bootloader has been changed!  :palm:
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Online wraper

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Re: Atmega32u4
« Reply #1 on: August 23, 2016, 10:03:05 pm »
Buy cheap programmer for a few bucks. Additional clock crystal might be needed on OSC pins depending on the fuses programmed.
« Last Edit: August 23, 2016, 10:04:40 pm by wraper »
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Offline dannyf

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Re: Atmega32u4
« Reply #2 on: August 23, 2016, 10:28:40 pm »
The fuse settings are in the data sheet. Not sure why they would have a factory bootloader.
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Offline stjTopic starter

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Re: Atmega32u4
« Reply #3 on: August 23, 2016, 10:32:33 pm »
i knew those things would be said.

i have a programmer,

they have a factory bootloader because they have hardware usb, and can be programmed using the usb port with the DFU protocol.
or atleast they can if they have not been crippled for arduino use!  >:(

i need the factory "flip" bootloader on them so customers can upgrade the device over the cable with the existing software.
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Offline sleemanj

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Re: Atmega32u4
« Reply #4 on: August 23, 2016, 10:34:37 pm »
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Offline stjTopic starter

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Re: Atmega32u4
« Reply #5 on: August 23, 2016, 11:02:23 pm »
thanks - i was on that page yesterday, but didnt notice the download link!
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