Re: [avr-gcc-list] UISP erased mega128 id bytes

[Marek Michalkiewicz]

> This happend after about 20-th erase/program cycle, using the dapa mode. The 
> ID bytes are restored back after uploading the fuse segment, but again ruined 
> by a program attempt to flash segment, while the eeprom segment still behaves 
> normaly. 

It may be that you found a bug in the chip.  Is this a sample or normal
production part?

I had a similar problem long time ago with one of the ATmega163 samples -
reported to address@hidden and they told me it can happen in samples, but
normal production parts have the signature bytes locked.  Still it seems
strange to me that these bytes are flash memory and not just hardwired...

Marek

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