Mark Randall
This Library allows you to use any pin on the mbed micro as PWM out. It also allows the user to update the Period and Pulse width in realtime.
Diff: PwmOutAny.cpp
- Revision:
- 0:9eb94736e774
diff -r 000000000000 -r 9eb94736e774 PwmOutAny.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/PwmOutAny.cpp Sun Dec 08 19:04:44 2013 +0000
@@ -0,0 +1,49 @@
+#include "PwmOutAny.h"
+
+float _period;
+float _PercentHigh;
+
+PwmOutAny::PwmOutAny(PinName pin1, float Period, float PercentHigh):_PwmOut(pin1)
+{
+ _period=Period;
+ _PercentHigh=PercentHigh ;
+ _PwmTicker.attach(this,&PwmOutAny::TickerFlipper,_period/2);
+}
+
+void PwmOutAny::TickerFlipper()
+{
+ static float CurrentPeriod;
+ if(!_PwmOut)
+ {
+ _PwmTicker.detach();
+ _PwmTicker.attach(this,&PwmOutAny::TickerFlipper,CurrentPeriod*(_PercentHigh));
+ _PwmOut = true;
+ }
+ else
+ {
+ CurrentPeriod = _period;
+ _PwmTicker.detach();
+ _PwmTicker.attach(this,&PwmOutAny::TickerFlipper,CurrentPeriod*(1.0-_PercentHigh));
+ _PwmOut = false;
+ }
+}
+
+
+ float PwmOutAny::Get_PulseWidth()
+{
+ return (_PercentHigh);
+
+}
+ void PwmOutAny::Set_PulseWidth(float PW)
+{
+ _PercentHigh = PW;
+}
+ float PwmOutAny::Get_Period()
+{
+ return _period;
+}
+ void PwmOutAny::Set_Period(float ChangePeriod)
+{
+ _period = ChangePeriod;
+}
+