Andrew Miller
counts digital frequency based on interrupt and timer, triggers on rising edge
Diff: FrequencyCounter.h
- Revision:
- 0:91a906dbf731
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/FrequencyCounter.h Tue Aug 09 20:03:10 2016 +0000
@@ -0,0 +1,26 @@
+#ifndef FREQUENCY_COUNTER_H_DECL
+#define FREQUENCY_COUNTER_H_DECL
+
+#include <mbed.h>
+
+class FrequencyCounter {
+ //mbed classes
+ Timer _mtime;
+ InterruptIn _cPin;
+
+ double _lastTime;
+ double _fq;
+ double _iircoef;
+ void _irqs(void);
+
+public:
+
+ FrequencyCounter(PinName);
+ double getFrequency();
+ double getTime();
+ void setIIRCoeff(double);
+ void start();
+ void stop();
+};
+#endif
+