cy liang / PixelArray

Pixel Array through SPI

Dependencies:   BurstSPI

Diff: neopixel.cpp

Revision:
4:c3b314df3dfe
Parent:
3:6f392fcb1d3b
--- a/neopixel.cpp	Mon Aug 18 21:38:40 2014 +0000
+++ b/neopixel.cpp	Wed Aug 20 19:57:54 2014 +0000
@@ -67,7 +67,7 @@
 {
     int zero = 0x300;  // Encode zero as 0b1100000000
     int one = 0x3e0;   // Encode one as 0b1111100000
-    for (int i = 1; i < 256; i *= 2) {
+    for (int i = 128; i >= 1; i >>= 1) {
         spi.fastWrite((bits & i) ? one : zero);
     }
 }