wayne roberts
demostration for TimeoutAbs
Demo absolute timeout.
Event occurs at absolute time instead of relative to when attach() called. Random delay is added to show independence from when attach() is called.
Diff: main.cpp
- Revision:
- 0:3985faffb331
diff -r 000000000000 -r 3985faffb331 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Nov 26 14:37:06 2018 -0800
@@ -0,0 +1,40 @@
+#include "mbed.h"
+#include "LowPowerTimeoutAbs.h"
+
+volatile bool ev;
+Timer t;
+
+LowPowerTimeoutAbs tabs;
+
+void my_callback()
+{
+ ev = true;
+}
+
+us_timestamp_t tabs_started_at;
+
+int main()
+{
+ unsigned prev;
+ t.start();
+ tabs_started_at = tabs.read_us();
+ tabs.attach_us(my_callback, tabs_started_at + 100000);
+ prev = t.read_us();
+ printf("tabs_started_at:%llu prev:%u\r\n", tabs_started_at, prev);
+ for (;;) {
+ unsigned now;
+ if (ev) {
+ unsigned late;
+ now = t.read_us();
+ tabs_started_at += 1000000;
+ late = rand() % 200000;
+ printf("time %u\t", now - prev);
+ fflush(stdout);
+ wait_us(late);
+ printf("late:%u\r\n", late);
+ tabs.attach_us(my_callback, tabs_started_at);
+ prev = now;
+ ev = false;
+ }
+ }
+}