Toyomasa Watarai / WS2812

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Files at this revision

API Documentation at this revision

Revision 3:6e60574091dd, committed 2018-11-12

Comitter:
MACRUM
Date:
Mon Nov 12 05:05:50 2018 +0000
Parent:
2:6e647820f587
Commit message:
Support GCC_ARM compiler

Changed in this revision

WS2812.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/WS2812.cpp	Thu Feb 12 20:24:15 2015 +0000
+++ b/WS2812.cpp	Mon Nov 12 05:05:50 2018 +0000
@@ -1,5 +1,11 @@
 #include "WS2812.h"
 
+#if defined ( __GNUC__ )    /* GCC Compiler */
+#define NOP __asm __volatile("nop\n")
+#else
+#define NOP __nop()
+#endif
+
 WS2812::WS2812(PinName pin, int size, int zeroHigh, int zeroLow, int oneHigh, int oneLow) : __gpo(pin)
 {
     __size = size;
@@ -92,20 +98,20 @@
         if (__transmitBuf[i]){
             __gpo = 1;
             for (; j < __oneHigh; j++) {
-                __nop();
+                NOP;
             }
             __gpo = 0;
             for (; j < __oneLow; j++) {
-                __nop();
+                NOP;
             }
         } else {
             __gpo = 1;
             for (; j < __zeroHigh; j++) {
-                __nop();
+                NOP;
             }
             __gpo = 0;
             for (; j < __zeroLow; j++) {
-                __nop();
+                NOP;
             }
         }
     }