[Tinyos-help] A little confuse about MDA300CA excitation power

[Demin Wang]

Hi, all
I have a little confuse about the DELAY_BEFORE_MEASUREMENT parameter in
MDA300CA. In my application, I want the EXCITATION_50 on for 2 seconds
before actually measure the sensor signal. The sensor is powered by  5.0v
from MDA300CA board.
The comment in the program say if I set DELAY_BEFORE_MEASUREMENT, the
default time before measure is 20ms. But when I checked the
/contrib/xbow/tos/sensorboards/mda300/IBADCM.nc, found out the actual time
is defined by#define VOLTAGE_STABLE_TIME 50 and called by function call
PowerStabalizingTimer.start(TIMER_ONE_SHOT, VOLTAGE_STABLE_TIME);
Then the delay before measurement should be 50ms, not 20ms. Am I correct? I
am using tinyos-1.x

Thanks a lot.

Demin
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