Reset pin on ATTiny44/84 cannot be used?

damellis / attiny

ATtiny microcontroller support for the Arduino IDE

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Reset pin on ATTiny44/84 cannot be used? #112

Open tonyp7 opened 7 years ago

tonyp7 commented 7 years ago

It seems like the reset pin cannot be used as a digital IO on the 44/84 ATTiny. Am I missing something? Thanks!

xunil commented 4 years ago

I believe you have to unprogram the RSTDISBL fuse; this can be done with avrdude. After you unprogram this fuse, however, you can only perform high-voltage programming of the chip - you won't be able to use an Arduino as an ISP.