mbed_example / Mbed OS PwmOut_HelloWorld

PwmOut Hello World

Fork of PwmOut_HelloWorld by Mbed

Note

Set the cycle time first, then set the duty cycle using either a relative time period via the write() function or an absolute time period using the pulsewidth() function.

Files at this revision

API Documentation at this revision

Revision 1:5160ea45399b, committed 2014-09-21

Comitter:
mbedAustin
Date:
Sun Sep 21 06:39:30 2014 +0000
Parent:
0:50d2b9c62765
Child:
2:3a1c5ee2fdb6
Commit message:
updated example for clarity

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 
--- a/main.cpp	Tue Feb 12 15:10:53 2013 +0000
+++ b/main.cpp	Sun Sep 21 06:39:30 2014 +0000
@@ -1,12 +1,12 @@
 #include "mbed.h"
- 
+
 PwmOut led(LED1);
- 
+
 int main() {
-    while(1) {
-        for(float p = 0.0f; p < 1.0f; p += 0.1f) {
-            led = p;
-            wait(0.1);
-        }
-    }
+    // specify period first
+    led.period(4.0f);      // 4 second period
+    led.write(0.50f);      // 50% duty cycle, relative to period
+    //led = 0.5f;          // shorthand for led.write()
+    //led.pulsewidth(2);   // alternative to led.write, set duty cycle time in seconds
+    while(1);
 }
\ No newline at end of file

--- a/mbed.bld	Tue Feb 12 15:10:53 2013 +0000
+++ b/mbed.bld	Sun Sep 21 06:39:30 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/0954ebd79f59
\ No newline at end of file
+http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1
\ No newline at end of file