At 11:33 PM +0200 1999/10/13, Dimitar Stoyanov wrote:
>Is there a way which does not spend so much power when
>listening for data at the serial port? - Just like Beam function on the
>Palm - the Palm is always ready for getting data via IR port and obviously
>it does not consume much energy.
The automatic beam receive function works by periodically opening the IR port and
sniffing for packets. If none are found it closes the port and waits some time before
trying again. If packets are found, it tries to establish a session.
The serial transceiver is powered on when the serial port is opened, and powered off
when it's closed. So unless you periodically use this open-sniff-close method, your
app will consume batteries like candy.
Regards,
Jim Schram
3Com/Palm Computing
Partner Engineering
