Tapton Eesarm / PololuLedStrip

school project using led strip

Fork of PololuLedStrip by David Grayson

Diff: led_strip_write_color.s

Revision:
25:5c01a6fa1556
Parent:
23:5368af3ff07d
--- a/led_strip_write_color.s	Thu Sep 08 23:53:42 2016 +0000
+++ b/led_strip_write_color.s	Fri Sep 09 22:12:31 2016 +0000
@@ -49,7 +49,7 @@
     str r3, [r1]       ; Drive the line high.
     
     ; It doesn't really matter exactly how long we delay here as long as it is
-    ; less than 540 microseconds.
+    ; less than the LED's threshold between 0 and 1.
     nop
     nop
     nop
@@ -61,16 +61,16 @@
     tst r6, r4
     bne delay0
     str r3, [r2]       ; If the bit to send it 0, drive the line low.
+
 delay0
-
     delay #0
 
     ldr r4, =0x80000000
     tst r6, r4
     beq delay1
     str r3, [r2]       ; If the bit to send is 1, drive the line low.
+
 delay1
-    
     delay #1
     
     lsls r6, r6, #1           ; Shift color bits.