.section .start
.cpu cortex-m3
.fpu softvfp
.thumb
_isr: .word 0x20000108 @ Position 00 - Stack Pointer
.word _start @ Position 01 - Reset Pointer
.word int_handler @ Position 02 - NMI
.word int_handler @ Position 03 - Hard Fault
.word int_handler @ Position 04 - Memory Fault
.word int_handler @ Position 05 - Bus Fault
.word int_handler @ Position 06 - Usage Fault
.word 0x00000000 @ Position 07 - Reserved
.word 0x00000000 @ Position 08 - Reserved
.word 0x00000000 @ Position 09 - Reserved
.word 0x00000000 @ Position 10 - Reserved
.word int_handler @ Position 11 - SVCall
.word int_handler @ Position 12 - Debug Monitor
.word int_handler @ Position 13 - Reserved
.word int_handler @ Position 14 - PendSV
.word int_handler @ Position 15 - SysTick
.word int_handler @ Position 16 - GPIO A
.word int_handler @ Position 17 - GPIO B
.word int_handler @ Position 18 - GPIO C
.word int_handler @ Position 19 - GPIO D
.word int_handler @ Position 20 - GPIO E
.word int_handler @ Position 21 - UART 0
.word int_handler @ Position 22 - UART 1
.word int_handler @ Position 23 - SSI
.word int_handler @ Position 24 - I2C
.word int_handler @ Position 25 - PWM Fault
.word int_handler @ Position 26 - PWM Generator 0
.word int_handler @ Position 27 - PWM Generator 1
.word int_handler @ Position 28 - PWM Generator 2
.word 0x00000000 @ Position 29 - Reserved
.word int_handler @ Position 30 - ADC Sequence 0
.word int_handler @ Position 31 - ADC Sequence 1
.word int_handler @ Position 32 - ADC Sequence 2
.word int_handler @ Position 33 - ADC Sequence 3
.word int_handler @ Position 34 - Watchdog Timer
.word int_handler @ Position 35 - Timer 0A
.word int_handler @ Position 36 - Timer 0B
.word int_handler @ Position 37 - Timer 1A
.word int_handler @ Position 38 - Timer 1B
.word int_handler @ Position 39 - Timer 2A
.word int_handler @ Position 40 - Timer 2B
.word 0x00000000 @ Position 41 - Reserved
.word int_handler @ Position 42 - Analog Comparator 0
.word 0x00000000 @ Position 43 - Reserved
.word 0x00000000 @ Position 44 - Reserved
.word int_handler @ Position 45 - System Control
.word int_handler @ Position 46 - Flash Control
.word 0x00000000 @ Position 47 - Reserved
.word 0x00000000 @ Position 48 - Reserved
.equ RCGC2, 0x400FE108
.equ PORT_RCC, 0x400FE060
.equ PORT_C, 0x40006000
.equ RCC, 0x04803AC0
.equ PORTC_ENABLE, 0x04
.equ PC5_OUTPUT, 0x20
.align 2
.thumb
.thumb_func
.text
_start:
ldr r0, =PORT_RCC
ldr r1, =RCC
str r1, [r0]
ldr r0, =RCGC2
ldr r1, =PORTC_ENABLE
str r1, [r0]
ldr r0, =(PORT_C + 0x400)
ldr r1, =PC5_OUTPUT
str r1, [r0]
loop:
ldr r0, =(PORT_C + PC5_OUTPUT << 2)
ldr r1, =PC5_OUTPUT
str r1, [r0]
ldr r2, =0x00060000
delay1:
sub r2, r2, #1
bne delay1
ldr r0, =(PORT_C + PC5_OUTPUT << 2)
eor r1, r1
str r1, [r0]
ldr r2, =0x00060000
delay2:
sub r2, r2, #1
bne delay2
b loop
.align 2
.thumb
.thumb_func
.text
int_handler:
b int_handler
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