Diff: main.cpp

Revision:

0:ceb5a7253afd

diff -r 000000000000 -r ceb5a7253afd main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Oct 19 17:21:00 2013 +0000
@@ -0,0 +1,110 @@
+#include "mbed.h"
+ 
+PwmOut led1(LED1);
+PwmOut led2(LED2);
+PwmOut mP22(p22);
+Serial pc(USBTX, USBRX); // tx, rx
+
+float LastPosition =0.02;
+volatile float Scale = 1;
+volatile float Multiplier = 100;
+volatile float offset = 1000;
+volatile char SetScale;// =0;
+volatile char SetMultiplier;//=0;
+    
+void SerialPC_RX_CB() {
+    // Note: you need to actually read from the serial to clear the RX interrupt
+    char RXchar = pc.getc();
+    
+    if(SetScale == 1)
+     {
+        if( (RXchar > '0') && (RXchar <= '9'))
+        {
+            SetScale =0;
+            Scale = (RXchar - '0');
+            pc.printf("Scale Set\r\n");
+        }
+        else pc.printf("Scale values must be 0-9");
+     }
+     
+    else
+    if(SetMultiplier == 1)
+     {
+        if( (RXchar > '0') && (RXchar <= '9'))
+        {
+            SetMultiplier =0;
+            Multiplier =1;
+            for(int i =0;i < (RXchar - '0'); i++)
+                Multiplier*=10;
+            pc.printf("Multiplier Set to %f\r\n",Multiplier);
+        }
+        else {
+        pc.printf("Multiplier values must be 0-3 representing zeroes");
+        }
+     }
+      
+    else
+    if((RXchar > 0x29) && (RXchar < 0x40)){
+        float Delta = ((float)( RXchar - '0'));
+        Delta = (Delta*Scale * Multiplier)+offset;
+        mP22.pulsewidth_us(Delta);
+        pc.printf("Pulse Width Changed to : %f \r\n",Delta);
+        
+        }
+        
+     else
+     if(RXchar == 's')
+     {
+        SetScale = 1;
+     }
+     if(RXchar == 'm')
+     {
+        SetMultiplier =1;
+     }
+
+     //else{ if(RXchar == 'm') mP22 = 0.01;
+      //          else if(RXchar == 'u') mP22 = 1.2;
+     //          }
+
+}
+ 
+int main() {
+
+    pc.attach(&SerialPC_RX_CB);
+    
+    mP22 = LastPosition;
+    SetScale = 0;
+    SetMultiplier = 0;
+    
+    pc.printf("Set Scale/Offset with (s/o)\r\nEnter a number from 0-9 \r\n");
+
+    while(1)
+    {
+        if (SetScale == 1)
+            {
+                pc.printf("Change the Scale Factor according to P(x) = Offset + (Scale* Multiplier * x) \r\n");
+                while(SetScale == 1){
+                    led2 = !led2;
+                    wait(100);
+                    }
+                    
+                    led2 = 0;
+                //wait(100);
+                pc.printf("Set Scale/Offset with (s/o)\r\nEnter a number from 0-9 \r\n");
+            }
+        else if(SetMultiplier ==1)
+        {
+                pc.printf("Change the Multiplier according to P(x) = Offset + (Scale* Multiplier * x) \r\n");
+                while(SetMultiplier == 1){
+                    led1 = !led1;
+                    wait(100);
+                }
+                led1 = 0;
+                //wait(100);
+                pc.printf("Set Scale/Offset with (s/o)\r\nEnter a number from 0-9 \r\n");
+        }
+        
+    }
+    
+}
+