Diff: Pulse.cpp

Revision:

0:083159111741

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Pulse.cpp	Wed Dec 01 00:36:04 2010 +0000
@@ -0,0 +1,50 @@
+
+#include "Pulse.h"
+#include "mbed.h"
+
+    Pulse::Pulse(PinName pin) : output_pin(pin) {
+        output_pin = 0; 
+        switch_state = false;
+        oscilation = 38400; //Set default oscilation to 38.4KHz
+    }
+
+    void Pulse::send_pulse(int* sequence){
+        int num_switches = (sizeof(sequence)/sizeof(int));
+        int tick = 1000000/oscilation;
+        for(int i = 0; i < num_switches; i++){
+            if(i % 2 == 0){
+                change_state();
+                output_pin = 1;
+                flipper.attach_us(this, &Pulse::flip_pin, tick);
+                wait_us(sequence[i]);
+                flipper.detach();
+                change_state();
+                output_pin = 0;
+            }else{
+                wait_us(sequence[i]);
+            }
+        }
+    }
+    
+    void Pulse::set_osc(int khz){
+        if(khz > 0 && khz <= 250000) //Make sure that the new oscilation is positive and also less than 250KHz 
+            oscilation = khz;
+    }
+    
+    void Pulse::set_pin(PinName pin){
+        output_pin = pin;
+    }
+            
+    void Pulse::flip_pin(){
+        if(switch_state) //Stop the output from switching unless it is meant to be transmitting
+            output_pin = !output_pin;
+        else
+            output_pin = 0;
+    }
+
+    void Pulse::change_state(){
+        switch_state = !switch_state;
+    }
+
+
+