eric.robishaw wrote:
> I have a Cell-modem connected to the 7800 through serial connection.
> I need to send a hardware reset to the modem, which I can do on a separate
> reset pin...
>
> Anyhow, the (normally open) pin needs to be connected to GND for about 2msec
> to reset. Can I connect to one of the DIO header pins and open an output to
> accomplish this?
Sure, the DIO pins will sink to ground or supply +3.3v. Probably the
cleanest way is to keep the pin as a input so it floats and only switch
it to ground when you want to reset. Not sure if there are pullups on
the pins or not but a 100k to +3.3v would be easy enough to add.
--
Jason Stahls
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