Hi, as the amforth will not be a subject of power computing let me ask the experts following: 1. would it be possible to create a mechanism where amforth/atmega will be run on _very_ low power - basically powerdown or sleep 2. the rx will be connected to an additional interrupt pin (e.g. wired-or from various sources) and when a character comes (startbit does log1->log0) it will fire interrupt and wake up the chip (first character will be lost probably as the chip needs some time to wakeup) 3. after receiving a character it will issue some message on state - that everything is ok (e.g. none reset or power-off occured) and it will start to communicate with us in a normal way.. 4. when not communicating with host for e.g. 10sec, or none tasks to accomplish, it will go to low power state again..
The idea behind is to power a gadget from a 3V coin battery, or a nimh AAA cell (and to use e.g. max1724 upconverter to 3v3 or 5v) maybe charged from a sollar cell. So the challenge is to achieve an ultra low power operation, without loosing RAM and i/o information, but be ready to ad-hoc communicate with a host via the serial anytime. I think this needs a support from amforth "OS" side as well. P. ------------------------------------------------------------------------------ Create and publish websites with WebMatrix Use the most popular FREE web apps or write code yourself; WebMatrix provides all the features you need to develop and publish your website. http://p.sf.net/sfu/ms-webmatrix-sf _______________________________________________ Amforth-devel mailing list Amforth-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amforth-devel
