Diff: PeriodicSensor.cpp

Revision:

0:8d34cc2ff388

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PeriodicSensor.cpp	Sun Mar 16 01:48:59 2014 +0000
@@ -0,0 +1,59 @@
+/* PeriodicSensor.cpp
+ * Tested with mbed board: FRDM-KL46Z
+ * Author: Mark Gottscho
+ * mgottscho@ucla.edu
+ */
+ 
+#include "mbed.h"
+#include "PeriodicSensor.h"
+
+PeriodicSensor::PeriodicSensor() :
+                __dataReady(false),
+                __interrupt(),
+                __sample_period(0),
+                __background_sampling(false),
+                __min_sample_period(0.05) {
+    __interrupt.detach();
+}
+
+PeriodicSensor::PeriodicSensor(float min_sample_period) :
+                __dataReady(false),
+                __interrupt(),
+                __sample_period(0),
+                __background_sampling(false),
+                __min_sample_period(0.05) {
+    if (min_sample_period > 0)
+        __min_sample_period = min_sample_period;
+    __interrupt.detach();
+}
+
+PeriodicSensor::~PeriodicSensor() { }
+
+bool PeriodicSensor::isDataReady() {
+    return __dataReady;
+}
+
+void PeriodicSensor::enableBackgroundSampling(bool enable, float sample_period) {
+    if (enable && sample_period >= __min_sample_period-0.0001) {
+       __sample_period = sample_period;
+       __background_sampling = true;
+       __interrupt.attach(this, &PeriodicSensor::__sample_data_ISR, sample_period);
+    }
+    else if (!enable) {
+        __sample_period = 0;
+        __background_sampling = false;
+        __interrupt.detach();   
+    }
+}
+
+bool PeriodicSensor::isBackgroundSamplingEnabled() {
+    return __background_sampling;   
+}
+
+float PeriodicSensor::getSamplePeriod() {
+    return __sample_period;
+}
+
+float PeriodicSensor::getMinSamplePeriod() {
+    return __min_sample_period;
+}
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