Fix apa102 output for esp32 where the compiler is optimizing some of …

…our pin writes out a little too aggressively
FastLED · Sep 8, 2018 · d7007f4 · d7007f4
1 parent 6d0cc96
commit d7007f4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/fastspi_bitbang.h b/fastspi_bitbang.h
@@ -123,6 +123,9 @@ class AVRSoftwareSPIOutput {
 		//cli();
 		if(b & (1 << BIT)) {
 			FastPin<DATA_PIN>::hi();
+#ifdef ESP32
+			FastPin<CLOCK_PIN>::lo(); // kick a different register, block premature optimizations?
+#endif
 			FastPin<CLOCK_PIN>::hi(); CLOCK_HI_DELAY;
 			FastPin<CLOCK_PIN>::lo(); CLOCK_LO_DELAY;
 		} else {