A compilation of some hardware sensors and their shared programming interfaces.
PeriodicSensor.cpp@1:15396cab58d1, 2014-03-19 (annotated)
- Committer:
- mgottscho
- Date:
- Wed Mar 19 00:35:31 2014 +0000
- Revision:
- 1:15396cab58d1
- Parent:
- 0:8d34cc2ff388
Updated for most recent UtilityLib.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mgottscho | 0:8d34cc2ff388 | 1 | /* PeriodicSensor.cpp |
mgottscho | 0:8d34cc2ff388 | 2 | * Tested with mbed board: FRDM-KL46Z |
mgottscho | 0:8d34cc2ff388 | 3 | * Author: Mark Gottscho |
mgottscho | 0:8d34cc2ff388 | 4 | * mgottscho@ucla.edu |
mgottscho | 0:8d34cc2ff388 | 5 | */ |
mgottscho | 0:8d34cc2ff388 | 6 | |
mgottscho | 0:8d34cc2ff388 | 7 | #include "mbed.h" |
mgottscho | 0:8d34cc2ff388 | 8 | #include "PeriodicSensor.h" |
mgottscho | 0:8d34cc2ff388 | 9 | |
mgottscho | 0:8d34cc2ff388 | 10 | PeriodicSensor::PeriodicSensor() : |
mgottscho | 0:8d34cc2ff388 | 11 | __dataReady(false), |
mgottscho | 0:8d34cc2ff388 | 12 | __interrupt(), |
mgottscho | 0:8d34cc2ff388 | 13 | __sample_period(0), |
mgottscho | 0:8d34cc2ff388 | 14 | __background_sampling(false), |
mgottscho | 0:8d34cc2ff388 | 15 | __min_sample_period(0.05) { |
mgottscho | 0:8d34cc2ff388 | 16 | __interrupt.detach(); |
mgottscho | 0:8d34cc2ff388 | 17 | } |
mgottscho | 0:8d34cc2ff388 | 18 | |
mgottscho | 0:8d34cc2ff388 | 19 | PeriodicSensor::PeriodicSensor(float min_sample_period) : |
mgottscho | 0:8d34cc2ff388 | 20 | __dataReady(false), |
mgottscho | 0:8d34cc2ff388 | 21 | __interrupt(), |
mgottscho | 0:8d34cc2ff388 | 22 | __sample_period(0), |
mgottscho | 0:8d34cc2ff388 | 23 | __background_sampling(false), |
mgottscho | 0:8d34cc2ff388 | 24 | __min_sample_period(0.05) { |
mgottscho | 0:8d34cc2ff388 | 25 | if (min_sample_period > 0) |
mgottscho | 0:8d34cc2ff388 | 26 | __min_sample_period = min_sample_period; |
mgottscho | 0:8d34cc2ff388 | 27 | __interrupt.detach(); |
mgottscho | 0:8d34cc2ff388 | 28 | } |
mgottscho | 0:8d34cc2ff388 | 29 | |
mgottscho | 0:8d34cc2ff388 | 30 | PeriodicSensor::~PeriodicSensor() { } |
mgottscho | 0:8d34cc2ff388 | 31 | |
mgottscho | 0:8d34cc2ff388 | 32 | bool PeriodicSensor::isDataReady() { |
mgottscho | 0:8d34cc2ff388 | 33 | return __dataReady; |
mgottscho | 0:8d34cc2ff388 | 34 | } |
mgottscho | 0:8d34cc2ff388 | 35 | |
mgottscho | 0:8d34cc2ff388 | 36 | void PeriodicSensor::enableBackgroundSampling(bool enable, float sample_period) { |
mgottscho | 0:8d34cc2ff388 | 37 | if (enable && sample_period >= __min_sample_period-0.0001) { |
mgottscho | 0:8d34cc2ff388 | 38 | __sample_period = sample_period; |
mgottscho | 0:8d34cc2ff388 | 39 | __background_sampling = true; |
mgottscho | 0:8d34cc2ff388 | 40 | __interrupt.attach(this, &PeriodicSensor::__sample_data_ISR, sample_period); |
mgottscho | 0:8d34cc2ff388 | 41 | } |
mgottscho | 0:8d34cc2ff388 | 42 | else if (!enable) { |
mgottscho | 0:8d34cc2ff388 | 43 | __sample_period = 0; |
mgottscho | 0:8d34cc2ff388 | 44 | __background_sampling = false; |
mgottscho | 0:8d34cc2ff388 | 45 | __interrupt.detach(); |
mgottscho | 0:8d34cc2ff388 | 46 | } |
mgottscho | 0:8d34cc2ff388 | 47 | } |
mgottscho | 0:8d34cc2ff388 | 48 | |
mgottscho | 0:8d34cc2ff388 | 49 | bool PeriodicSensor::isBackgroundSamplingEnabled() { |
mgottscho | 0:8d34cc2ff388 | 50 | return __background_sampling; |
mgottscho | 0:8d34cc2ff388 | 51 | } |
mgottscho | 0:8d34cc2ff388 | 52 | |
mgottscho | 0:8d34cc2ff388 | 53 | float PeriodicSensor::getSamplePeriod() { |
mgottscho | 0:8d34cc2ff388 | 54 | return __sample_period; |
mgottscho | 0:8d34cc2ff388 | 55 | } |
mgottscho | 0:8d34cc2ff388 | 56 | |
mgottscho | 0:8d34cc2ff388 | 57 | float PeriodicSensor::getMinSamplePeriod() { |
mgottscho | 0:8d34cc2ff388 | 58 | return __min_sample_period; |
mgottscho | 0:8d34cc2ff388 | 59 | } |