No are correct, there are currently no drivers for the comparators on the msp430 -- at least not in the core. There are no plans at this time to implement them either.
If you were to write such a driver hardware conflicts could be resolved by first restructuring the timers to rovide a Resource interface so access to them could be arbitrated, and then implementing the drivers using this same pattern. If a driver needed needed a particualr timer configured a certain way, it would first reserve it use, set it up the way it needed it, and then start using it -- with the guarantee that no one would step on it via the isolation provided through the use of an arbiter. Kevin On Jan 16, 2008 9:21 AM, John Griessen <[EMAIL PROTECTED]> wrote: > I've searched through tinyos-2.x with find and have not found any comparator > code. > I'm thinking of using the MSP430F1611 comparator instead of its DAC > since comparators are often on a processor chip. Also, I need more drive > than the 0.5 mA > the DAC can provide, also using the DAC stops using ADC6 ADC7 on the > MSP430F1611. > > Timer code in tinyos seems not to use the hardware timer inputs so far -- > they are physically shared with > the voltage comparator on the MSP430F1611. > > So, I wonder if anyone is planning such timer trigger inputs soon and how to > deal with hardware conflicts > where using one port feature stops using another... > > I'm doing the voltage comparators groundwork for calibrated soil moisture > sensors that draw 10 mA each for > 10ms before taking a reading, and require a solid 2.50 V for excitation to > give accurate data. > > John Griessen > -- > Ecosensory Austin TX > tinyOS devel on: ubuntu Linux; tinyOS v2.0.2; telosb ecosens1 > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- ~Kevin _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
