Diff: ADCSensor.cpp

Revision:

0:8d34cc2ff388

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ADCSensor.cpp	Sun Mar 16 01:48:59 2014 +0000
@@ -0,0 +1,39 @@
+/* ADCSensor.cpp
+ * Tested with mbed board: FRDM-KL46Z
+ * Author: Mark Gottscho
+ * mgottscho@ucla.edu
+ */
+
+#include "mbed.h"
+#include "ADCSensor.h"
+#include "PeriodicSensor.h"
+
+ADCSensor::ADCSensor(PinName adc_pin) :
+                    PeriodicSensor(0.005), //default max sampling rate of 200Hz
+                    __adc(adc_pin),
+                    __data(0)
+                    {
+}
+
+ADCSensor::~ADCSensor() { }
+
+uint16_t ADCSensor::getSample(bool sampleNow) {
+    __disable_irq();
+    if (sampleNow) {
+        __data = __adc.read_u16();
+    }
+    
+    __dataReady = false;
+    __enable_irq();
+    
+    return __data;   
+}
+
+float ADCSensor::getSampleFloat(bool sampleNow) {
+    return getSample(sampleNow) * ADC_DIV;   
+}
+
+void ADCSensor::__sample_data_ISR() {
+    getSample(true);
+    __dataReady = true;
+}
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