takuya ichise / NeoPixel

Simple neopixel (WS2812) library, tuned for stm32 (L432) at 80 MHz Should be compatible with any stm32, different clock speed may require timing adjustments in neopixel.c

Dependents:   NEOPIXEL_SAMPLE ppd

Diff: neopixel.cpp

Revision:
1:415459e3f93b
Parent:
0:a81364d9a67b
--- a/neopixel.cpp	Tue Mar 21 21:17:08 2017 +0000
+++ b/neopixel.cpp	Thu Jan 02 07:56:44 2020 +0000
@@ -16,17 +16,17 @@
         // duty cycle determines bit value
         if (byte & 0x80) {
             // one
-            for(int j = 0; j < 6; j++) __nop();
+            for(int j = 0; j < 6; j++) __NOP();
             
             gpio_write(&gpio, 0);
-            for(int j = 0; j < 2; j++) __nop();
+            for(int j = 0; j < 2; j++) __NOP();
         }
         else {
             // zero
-            for(int j = 0; j < 2; j++) __nop();
+            for(int j = 0; j < 2; j++) __NOP();
             
             gpio_write(&gpio, 0);
-            for(int j = 0; j < 5; j++) __nop();
+            for(int j = 0; j < 5; j++) __NOP();
         }
 
         byte = byte << 1; // shift to next bit