Diff: main.cpp

Revision:

3:9a3c6c16dc25

Parent:

0:24ccc6d0c391

--- a/main.cpp	Tue Oct 10 15:13:26 2017 +0000
+++ b/main.cpp	Thu Sep 12 13:56:16 2019 +0000
@@ -4,23 +4,34 @@
 // However, pressing and releasing the switch can result in spurious falling edges
 // which trigger the routine 
 
+//Uncomment this if you want to use the onboard LEDs and Blue Switch on a F429ZI
+//#define USEONBOARD
+
 //Declare functions
 void sw1FallingEdge();
 
 //Global Objects
+#ifdef USEONBOARD
+DigitalOut  red_led(LED3);
+DigitalOut  green_led(LED1);
+InterruptIn sw1(USER_BUTTON);
+#else
 DigitalOut  red_led(D7);
 DigitalOut  green_led(D5);
-InterruptIn   sw1(D4);
+InterruptIn sw1(D4);
+#endif
 
 //Interrupt service routine for a rising edge (press)
 void sw1FallingEdge() {
     red_led = !red_led;     //Toggle the LED
 }
 
+Serial pc(USBTX, USBRX);
+
 //Main - only has to initialise and sleep
 int main() {
-    //Initial logging message
-    puts("START");
+
+    pc.set_blocking(true);
     red_led   = 0;
     green_led = 1;
     
@@ -34,7 +45,10 @@
         sleep();
         
         //You can ONLY reach this point if an ISR wakes the CPU
-        puts("ISR just woke the MPU");
+        green_led = !green_led;
+        
+        //Any use of the serial port will produce a series of interrupts
+        //pc.puts("Ping!\n\r");
         
     } //end while