mbed_example / Mbed OS Shared_Events_2

Shared event example. Instead of creating special thread user can use shared event queue and dispatch the global event queue from main thread.

Fork of Shared_Events_1 by mbed_example

Diff: main.cpp

Revision:
0:7c7d5b625e59
Child:
1:154179bdc39d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Dec 18 16:50:19 2017 +0000
@@ -0,0 +1,26 @@
+#include "mbed.h"
+#include "mbed_events.h"
+ 
+DigitalOut led1(LED1);
+InterruptIn sw(SW2);
+ 
+void rise_handler(void) {
+    // Toggle LED
+    led1 = !led1;
+}
+ 
+void fall_handler(void) {
+    printf("fall_handler in context %p\r\n", Thread::gettid());
+    // Toggle LED
+    led1 = !led1;
+}
+ 
+int main() {
+    // Request the shared queue
+    EventQueue *queue = mbed_event_queue();
+    printf("Starting in context %p\r\n", Thread::gettid());
+    // The 'rise' handler will execute in IRQ context
+    sw.rise(rise_handler);
+    // The 'fall' handler will execute in the context of the shared queue thread
+    sw.fall(queue->event(fall_handler));
+}