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Author Topic: ATMega328 Fuse Bits & Boot Loader Wiped  (Read 679 times)
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I have some atmega328 chips and the fuse bits have been wiped (not by me) along with the bootloader.  Any ideas as to what could cause this?


P.S.  I already CAN fix the issue I'm just curious as to what is causing it.  I do NOT want fixes for the chip itself, just suggestions on what could be causing the issue.
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Didn't think that was possible without reprogramming via ICSP, or via "high voltage" programming.
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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.
Arduino for Teens available at Amazon.com.

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Assuming I was using a 5V regulator and a 12V wall wart, could an accidental HV programming take place?
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No.
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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.
Arduino for Teens available at Amazon.com.

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I wonder what took place then.  They can't just randomly drop the boot loader and reset all fuses to 0x00.
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How can you tell all the fuses are at 0x00?  What are you using to show that?

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