all,
i just checked in a fix for a very subtle bug that i found in the
cc2420x stack that caused our favorite behavior: non-deterministic.
("it was working when i left the room, i swear!")
turns out that the innocent compiler warning about datatype overflow in
the line
TARGET_DCO_DELTA = TARGET_DCO_KHZ * ACLK_CALIB_PERIOD / ACLK_KHZ,
in the overridden (platforms/shimmers/chips/cc2420x/ and tmicro/)
Msp430ClockP.nc was not kidding.
i changed it to look like the boilerplate calculation in the msp430's
version,
TARGET_DCO_DELTA = (TARGET_DCO_KHZ / ACLK_KHZ) * ACLK_CALIB_PERIOD,
and the bug is gone.
i also noticed that i missed checking in SpanSerialP.nc under that
platform, which is necessary for getting the uart settings right when
running this stack (PlatformSerialC.nc points to it, not shimmerserial).
please update when you get a chance:
cd ~/tinyos-main/tos/platforms
svn update
thanks,
steve
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