Diff: src/PCComms.cpp

Revision:

1:b3907b8d9f65

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/PCComms.cpp	Mon Jun 25 21:01:02 2012 +0000
@@ -0,0 +1,43 @@
+#include "PCComms.h"
+#include "mbed.h"
+#include "State.h"
+
+#define BUFFER_LENGTH   10
+
+PCComms::PCComms(State* _values) : Comms(_values)
+{
+    pc = new Serial(USBTX, USBRX);
+    
+    pc->attach(this, &PCComms::receive, Serial::RxIrq);
+}
+
+void PCComms::send(char message)
+{
+    pc->putc(message);
+}
+
+void PCComms::receive()
+{    
+    unsigned char packet_id;
+    unsigned char data_length;
+    
+    unsigned char buffer[BUFFER_LENGTH];
+    
+    int i;
+    
+    if(pc->readable())
+    {
+        if(pc->getc() == 0xFF && pc->getc() == 0xFF) //Handshake(ish)
+        {
+            packet_id = pc->getc();
+            data_length = pc->getc();
+            
+            for(i = 0; i < data_length && i < BUFFER_LENGTH; i++)
+            {
+                buffer[i] = pc->getc();
+            }
+            
+            process_packet(packet_id, data_length, buffer);
+        }
+    }
+}
\ No newline at end of file