commit bc1e6dcad3f3dac3acb8453430432ced14f887d6
parent 572d9cc55ca9cce6aa24440c73a72a18d46b9bfe
Author: Matsuda Kenji <info@mtkn.jp>
Date: Tue, 27 Feb 2024 07:44:50 +0900
find a difference between before and after reboot
rosc settings are not restored
Diffstat:
| M | ex3/main.s | | | 38 | ++++++++++++++++++++------------------ |
1 file changed, 20 insertions(+), 18 deletions(-)
diff --git a/ex3/main.s b/ex3/main.s
@@ -4,22 +4,22 @@
.global vectors
vectors:
.word 0x20040000 // 0 initial SP
- .word (reset+1) // 1 entry point
- .word (reset+1) // 2
- .word (reset+1) // 3
- .word (reset+1) // 4
- .word (reset+1) // 5
- .word (reset+1) // 6
- .word (reset+1) // 7
- .word (reset+1) // 8
- .word (reset+1) // 9
- .word (reset+1) // 10
- .word (int_svcall+1) // 11 svcall
- .word (reset+1) // 12
- .word (reset+1) // 13
- .word (reset+1) // 14
- .word (int_systick+1) // 15 systick
- .word (int_alarm+1) // 16 alarm_0
+ .word reset+1 // 1 entry point
+ .word reset+1 // 2
+ .word reset+1 // 3
+ .word reset+1 // 4
+ .word reset+1 // 5
+ .word reset+1 // 6
+ .word reset+1 // 7
+ .word reset+1 // 8
+ .word reset+1 // 9
+ .word reset+1 // 10
+ .word int_svcall+1 // 11 svcall
+ .word reset+1 // 12
+ .word reset+1 // 13
+ .word reset+1 // 14
+ .word int_systick+1 // 15 systick
+ .word int_alarm+1 // 16 alarm_0
.section .text
reset:
@@ -118,8 +118,8 @@ wait_vco:
bl set_alarm
// debug
- ldr r3, clocks_base
- ldr r0, [r3, #0x54] // CLOCK: CLK_USB_CTRL
+ ldr r3, rosc_base
+ ldr r0, [r3, #0] // ROSC: CTRL
bl printh
loop:
@@ -322,6 +322,8 @@ uart0_base:
.word 0x40034000
timer_base:
.word 0x40054000
+rosc_base:
+ .word 0x40060000
sio_base:
.word 0xd0000000
ppb_base:
