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-rw-r--r--blink.s14
-rw-r--r--main.s5
2 files changed, 14 insertions, 5 deletions
diff --git a/blink.s b/blink.s
index 5150cab..5b65eb4 100644
--- a/blink.s
+++ b/blink.s
@@ -7,8 +7,9 @@
.equ GPIO25_CTRL, (IO_BANK0_BASE + 0x0cc)
.equ SIO_BASE, 0xd0000000
-.equ GPIO_OE_SET_OFST, 0x024
+.equ GPIO_OUT_SET_OFST, 0x014
.equ GPIO_OUT_XOR_OFST, 0x01c
+.equ GPIO_OE_SET_OFST, 0x024
.equ ATOMIC_CLEAR, 0x3000
@@ -25,6 +26,17 @@ setup_led:
str r0, [r1, GPIO_OE_SET_OFST]
bx lr
+.type led_on, %function
+.global led_on
+
+led_on:
+ ldr r1, =SIO_BASE
+ movs r0, 1
+ lsls r0, 25
+ str r0, [r1, GPIO_OUT_SET_OFST]
+1:
+ b 1b
+
.type blink, %function
.global blink
diff --git a/main.s b/main.s
index 0f137d6..8f72dfe 100644
--- a/main.s
+++ b/main.s
@@ -11,7 +11,4 @@ main:
bl setup_clocks
bl setup_gpio
bl setup_led
- movs r0, 3
- bl blinkN
-stop:
- b stop
+ b led_on