serial output control using switch

Dependencies:   mbed

Revision:
0:b1e04d4268b3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Apr 20 10:58:58 2015 +0000
@@ -0,0 +1,31 @@
+#include "mbed.h"
+
+//------------------------------------
+// Hyperterminal configuration
+// default 9600 bauds, 8-bit data, no parity
+
+//Arduino pin D0 & D1 is disconnected by default in nucleo board and hence serial O/P or I/P will not work.
+// REFER ST USER MANUAL UM 1724
+
+//O/P/ or I/P will work in ST link(USB to serial virtual com port) or can also be used from CN3 connector of nucleo board. 
+// use any terminal software and open the COM port of ST link to see the output.
+//------------------------------------
+
+Serial pc(SERIAL_TX, SERIAL_RX);
+DigitalIn sw1( PC_13);           // refer UM1724 ST nucleo User manual for pin details
+
+ 
+DigitalOut myled(LED1);
+ 
+int main() {
+  int i = 1;
+  pc.printf("Hello World !\n");
+  while(1) { 
+      if (sw1 == 0) { 
+      pc.printf("count = %d.\n", i++);
+      myled = !myled;
+      while(!sw1);  // wait till switch release
+      }
+  }
+}
+ 
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