Thank Janos for your generous hint. I checked TransformAlarmC, but it *decreases* precision and/or widens an Alarm. Since I want a microsecond alarm, this may not work, is it? Is there a microsecond alarm or timer I can directly leverage? If not, can you give some hint on how such an alarm or timer can be implemented from existing one(s)? Any input will be highly appreciated.
On Mon, Jan 9, 2012 at 12:04 AM, Janos Sallai <[email protected]>wrote: > You can use lib/time/TransformAlarmC to make a 32-bit alarm from the > existing 16-bit one. > > Janos > > On Sun, Jan 8, 2012 at 10:54 PM, Xiaohui Liu <[email protected]> wrote: > > Hi all, > > > > Is there any microsecond timer on TelosB, preferably with width of 32 > bit? I > > find a counter running at microsecond Msp430CounterMicroC, which only > > provides current time in microseconds. But I need to fire a timer to > execute > > some code at a specified interval, in the precision of microseconds, so a > > counter is not suitable, at least directly. > > > > Also, I want to timestamp and measure the elapsed time between two > events in > > microseconds. But Msp430CounterMicroC's width is only 16 bit, measuring > only > > up to 64 ms, which is insufficient for my timestamping purpose. > > > > Can anyone share his/her experience? I searched quite some time but > haven't > > found a suitable timer/counter/alarm on TelosB yet. Thank you in advance. > > > > -- > > -Xiaohui Liu > > > > _______________________________________________ > > Tinyos-help mailing list > > [email protected] > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- -Xiaohui Liu
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