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Re: [avr-gcc-list] atiny 15L

From: Bernt Hustad Hembre
Subject: Re: [avr-gcc-list] atiny 15L
Date: Fri, 3 Aug 2001 12:47:44 +0000 (GMT)

On Wed, 1 Aug 2001, Jamie Morken wrote:

> I'm designing a board using the atiny 15L and I am wondering about the two
> programming modes - high voltage (12 volts on reset' pin) or low voltage (5
> volts on reset pin)

> the question I have is for low voltage programming and since the reset' pin
> is also an ADC input, what will happen if the transducer hooked to the
> reset' pin is outputting 5V and then the MISO and MOSI and CLK pins also
> happen to be set so that the chip enters programming mode during
> operation?  Is there a method to avoid this?

Low Voltage programming is disabled if you program the RSTDISBL fuse. And
you have to program this fuse in order to use the pin as input.

Ref. Page 47 of the datasheet (available at http://www.avrfreaks.net)

Tlf.: 92648923

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