Diff: ExternalInterruptThread.cpp

Revision:

0:a355e511bc5d

Child:

7:73fd05fe556a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ExternalInterruptThread.cpp	Thu Feb 01 03:58:00 2018 +0000
@@ -0,0 +1,36 @@
+#include "mbed.h"
+
+void ExtInterruptISR(void);
+void ExtInterruptThread(void const *argument);
+
+osThreadId ExtInterruptId;
+
+osThreadDef(ExtInterruptThread, osPriorityHigh, 1024); // Declare ExtInterruptThread as a thread/process
+
+InterruptIn Bumper(p8); // External interrupt pin declared as Bumper
+
+DigitalOut led2(LED2);
+
+
+void ExternalInterruptThreadInit()
+{
+    Bumper.rise(&ExtInterruptISR); // Attach the address of the interrupt handler to the rising edge of Bumper
+    ExtInterruptId = osThreadCreate(osThread(ExtInterruptThread), NULL);            
+}
+
+
+// ******** External Interrupt Thread ********
+void ExtInterruptThread(void const *argument)
+{
+    while (true) {
+        osSignalWait(0x01, osWaitForever); // Go to sleep until signal, SignalExtCollision, is received
+        led2 = !led2;
+    }
+}
+
+
+// ******** External Interrupt Handler ********
+void ExtInterruptISR(void)
+{
+    osSignalSet(ExtInterruptId,0x01); // Send signal to the thread with ID, ExtInterruptId, i.e., ExtInterruptThread.
+}