Thanks, but i also tried with a 10k, 4.7k and 1 k pull ups, and even by
connecting reset line directly to VCC and any of that worked
The
problem seems to be other
Thanks
again
Javier
-----Mensaje original-----
De: Paul Maddox [mailto:P.Maddox@signal.qinetiq.com]
Enviado el: Miércoles, 02 de Febrero de 2005 10:57 a.m.
Para: AVR-Chat@yahoogroups.com
Asunto: Re: [AVR-Chat] Bootup/reset very big problem
Javier,De: Paul Maddox [mailto:P.Maddox@signal.qinetiq.com]
Enviado el: Miércoles, 02 de Febrero de 2005 10:57 a.m.
Para: AVR-Chat@yahoogroups.com
Asunto: Re: [AVR-Chat] Bootup/reset very big problem
> The thing comes when a tie an external
> voltage source to the reset pin (ex. an ISP programmer). Everything
> seems to work fine, even the reset circuitry, but as soon as i take
> out this external reset source, the chip halts. I dont have a clue
> about what this could be.
Try connecting a pull up resistor between the Reset pin and the 5V supply,
that should do it.
You can't leave this pin floating, it needs to be connected to a 'high' for
it to work.
If you plan to use the ISP sometimes then use a 10K resistor and all will be
well.
Paul
Visita www.tutopia.com y comienza a navegar más rápido en Internet. Tutopia es Internet para todos.