First version of my PPM library.

Dependents:   PPM_Test QuadCopter Quadcopter_mk2

Have a look at PPM_Test to see how this library is used.

Import programPPM_Test

Test program for my PPM library.

Revision:
3:d13b9e50312f
Parent:
2:b67f18c84c05
--- a/Ppm.cpp	Wed Mar 04 18:49:31 2015 +0000
+++ b/Ppm.cpp	Wed Apr 01 11:18:23 2015 +0000
@@ -3,7 +3,7 @@
 //Ppm reader by Joe Roberts, based on work by John Wolter
 //This program takes the Ppm Signal (Pulse Position Modulation) from your RC transmitter and outputs the data between the min/max outputs passed into the constructor
 //See 
-Ppm::Ppm(PinName pin, float minimumOutput, float maximumOutput, int minimumPulseTime, int maximumPulseTime, int numberOfChannels, int throttleChannel) 
+Ppm::Ppm(PinName pin, int minimumOutput, int maximumOutput, int minimumPulseTime, int maximumPulseTime, int numberOfChannels, int throttleChannel) 
 {    
     //Assign local variables passed into constructor
     _ppmPin = new InterruptIn(pin);
@@ -80,7 +80,7 @@
 }
 
 //Place mapped channel data into the passed in array
-void Ppm::GetChannelData(float * channelData)
+void Ppm::GetChannelData(double* channelData)
 {
     //Iterate over the channel times array
     for(int i = 0; i < _numberOfChannels; i++)
@@ -90,14 +90,14 @@
         else
         {
             //Map the channel times to value between the channel min and channel max
-            channelData[i] = Map(_completeTimes[i] ,_minimumPulseTime, _maximumPulseTime, _minimumOutput, _maximumOutput);
+            channelData[i] = Map(_completeTimes[i] , _minimumPulseTime, _maximumPulseTime, _minimumOutput, _maximumOutput);
         }
     }
     
     return; 
 }
 
-float Ppm::Map(float input, float inputMin, float inputMax, float outputMin, float outputMax)
+double Ppm::Map(double input, double inputMin, double inputMax, double outputMin, double outputMax)
 {
     return (input - inputMin) * (outputMax - outputMin) / (inputMax - inputMin) + outputMin;
 }
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