mbed_example / Mbed OS Ticker_HelloWorld

Hello World for Ticker

Fork of Ticker_HelloWorld by Mbed

Use

Ticker is an interrupt driven time interrupt. A ticker works like a kitchen timer, you set it up to tick down from some value in seconds, when it reaches 0 it calls a callback function, then resets the ticker and starts the whole process over again. A ticker can be used to cause periodic events, like blinking an LED on and Off at a certain rate. A tickers maximum time it can handle is 30min, for anything greater consider using the real time clock functionality. In this example LED1 is controlled by the main while look, while LED2 is controlled by the Ticker callback function.

API

API reference.

Import librarymbed

No documentation found.

Files at this revision

API Documentation at this revision

Revision 0:5014bf742e9b, committed 2013-02-14

Comitter:
mbed_official
Date:
Thu Feb 14 14:30:22 2013 +0000
Child:
1:ce38014095c9
Commit message:
Ticket Hello World

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Feb 14 14:30:22 2013 +0000
@@ -0,0 +1,20 @@
+#include "mbed.h"
+ 
+Ticker flipper;
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+ 
+void flip() {
+    led2 = !led2;
+}
+ 
+int main() {
+    led2 = 1;
+    flipper.attach(&flip, 2.0); // the address of the function to be attached (flip) and the interval (2 seconds)
+ 
+    // spin in a main loop. flipper will interrupt it to call flip
+    while(1) {
+        led1 = !led1;
+        wait(0.2);
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Thu Feb 14 14:30:22 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/0954ebd79f59
\ No newline at end of file