AVR-Chat

That 4.7 uf cap seems a little large to me.
  I don't know if there is a maximum rise time on the reset signal, but 
something in the .01 range might be more appropriate.

-carl


At 12:25 PM 10/23/2004, you wrote:


>         Hi,
>
>         I'm having a weird problem with a Mega8 running on the
>internal clock oscilator at 1 MHz. The internal Power-on Reset
>seems not to be working.
>         Every time I power up the circuit, I have to manually reset
>the Mega8. The power at the Vcc pin rises from 0 to +5V in 4mS.
>The RESET pin has a 22k to +5V and 4.7uF to GND.
>         Have tried several fuses combinations but no luck.
>         Am I missing something?
>
>         Thanks.
>         Mark Jordan
>
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