Tomás Vega
Forked PololuLedStrip and modified it to work with the KL25Z. Renamed it to Adafruit_NeoPixel.
Dependents: idd_hw3 idd_fa15_hw3_lauren_bill_tomas idd_fa15_hw3_lauren_bill_tomas Raiden ... more
Fork of
PololuLedStrip
by 
David Grayson
Diff: led_strip_write_color.s
- Revision:
- 12:b6df8ac053c8
- Parent:
- 11:e00ba70ac54c
- Child:
- 19:46d7ab0ba3e7
--- a/led_strip_write_color.s Fri Mar 01 04:16:44 2013 +0000
+++ b/led_strip_write_color.s Fri Mar 01 04:34:54 2013 +0000
@@ -54,7 +54,7 @@
ldr r4, =0x80000000
tst r6, r4
bne delay1
- str r3, [r2] ; If the bit to send it 0, drive the line low.
+ str r3, [r2] ; If the bit to send it 0, drive the line low.
delay1
delay #1
@@ -62,17 +62,15 @@
ldr r4, =0x80000000
tst r6, r4
beq delay2
- str r3, [r2] ; If the bit to send is 1, drive the line low.
+ str r3, [r2] ; If the bit to send is 1, drive the line low.
delay2
delay #2
- lsls r6, r6, #1 ; Shift color bits.
+ lsls r6, r6, #1 ; Shift color bits.
subs r7, r7, #1 ; Decrement the loop counter.
- bne send_led_strip_bit ; Send another bit if we have not reached zero.
-
-led_strip_asm_end
- pop {r4, r5, r6, r7, pc}
+ bne send_led_strip_bit ; Send another bit if we have not reached zero.
+ pop {r4, r5, r6, r7, pc} ; Otherwise, restore the registers and return.
delay_region