『转贴』STM32汇编 TIM1定时器输出六路互补PWM 带死区延时

yjmwxwx · 发表于 2013-6-9 22:24:30

新手代码错误多多！！！！小学文化自学汇编。

程序用TIM3定时控制TIM1定时器，然后在TIM3中断服务函数中写入TIM1PWM的下一个状态（手册上是这样写的）

驱动光驱里面的无刷电机成功转起来了，实现电机转速快慢循环

@@@
        .thumb
        .syntax unified
@@@
        .equ STACKINIT,     0x20005000
    .equ rcckz,        0x40021000 @rcc时钟控制寄存器
    .equ rccpz,        0x40021004 @时钟配置寄存器
    .equ flashacr,        0x40022000 @flash闪存访问寄存器
       .equ syskz,           0xE000E010 @ 控制寄存器
        .equ syscz,            0xE000E014 @systick定时器重载
        .equ syssz,            0xE000E018 @systick计数值查询

.section .text

vectors_table:
vectors:
        .word STACKINIT
        .word _start + 1
        .word _nmi_handler + 1
        .word _hard_fault + 1
        .word _memory_fault + 1
        .word _bus_fault + 1
        .word _usage_fault + 1
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word _dingshiqi + 1
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0
    .word _tim3dingshiqi +1

_start:
chushihua:
    mov r0, #0
    mov r1, #0
    mov r2, #0
    mov r3, #0
    mov r4, #0
    mov r5, #0
    mov r6, #0
    mov r7, #0
    mov r8, #0

shizhong:
    ldr r0, = rcckz
    ldr r1, = 0x14D83
    str r1, [r0]
gsszbz: @高速时钟标志位
    ldr r1, [r0]
    ldr r2, = 0x34D83
    cmp r2, r1
    bne    gsszbz

    @FLASH缓冲缓冲开启
    ldr r0, = flashacr
    mov r1, # 0x00000032
    str r1, [r0]
    @设置
    ldr r0, = rccpz
    ldr r1, = 0x1D8400
    str r1, [r0]

    ldr r0, = rcckz
    ldr r1, = 0x1033D03
    str r1, [r0]
chaxun:
    ldr r1, [r0]
    ldr r2, = 0x03033D03
    cmp r1, r2
    bne chaxun

    ldr r0, = rccpz
    ldr r1, = 0x1D8402
    str r1, [r0]

systick:
    ldr r0, =0xE000ED23
    ldr r1, = 0xC0
    str r1, [r0]


    ldr r1, = syskz
    ldr r0, = syscz
    ldr r2, = syssz

    mov r3, #0
    str r3, [r1]

    ldr r3, = 0x2328
    str r3, [r0]
    str r3, [r2]

    mov r3, # 0x03
    str r3, [r1]

gpioakou:
    ldr r0, = 0x40021018
    ldr r1, = 0x80C
    str r1, [r0]

    ldr r0, = 0x40010804
    ldr r1, = 0x44444BBB
    str r1, [r0]

    ldr r0, = 0x40010C04
    ldr r1, = 0xBBB44444
    str r1, [r0]

    ldr r0, = 0x4001080C
    ldr r1, = 0x700
    str r1, [r0]

    ldr r0, = 0x40010C0C
    ldr r1, = 0xE000
    str r1, [r0]

dingshiqi3:
    ldr r0, = 0xE000E100
    ldr r1, = 0x20000000
    str r1, [r0]

    ldr r0, =0xE000ED23
    ldr r1, = 0x00
    str r1, [r0]


    ldr r0, = 0x4002101C
    mov r1, # 0x02
    str r1, [r0]

    ldr r0, = 0x4000042C
    ldr r1, = 0x200
    str r1, [r0]

    ldr r0, = 0x40000428
    ldr r1, = 300
    str r1, [r0]

    ldr r0, = 0x40000418
    ldr r1, = 0x78
    str r1, [r0]

    ldr r0, = 0x40000404
    mov r1, #0x40
    str r1, [r0]

    ldr r0, = 0x4000040C
    ldr r1, = 0x02
    str r1, [r0]

    ldr r0, = 0x40000414
    mov r1, #0x03
    str r1, [r0]

    ldr r0, = 0x40000420
    mov r1, #0x01
    str r1, [r0]

dingshiqi1:

    ldr r0, = 0x40012C2C
    ldr r1, = 0x366
    str r1, [r0]

    ldr r0, = 0x40012C28
    ldr r1, = 0xE10
    str r1, [r0]

    ldr r0, = 0x40012C04
    ldr r1, = 0x05
    str r1, [r0]

    ldr r0, = 0x40012C08
    ldr r1, = 0x26
    str r1, [r0]

    ldr r0, = 0x40012C44 @TIM1_BDTR
    ldr r1, = 0x8077
    str r1, [r0]

    ldr r0, = 0x40012C18 @CCMR1
    ldr r1, = 0x7878
    str r1, [r0]

    ldr r0, = 0x40012C1C @CCMR2
    ldr r1, = 0x78
    str r1, [r0]

    ldr r0, = 0x40012C00
    ldr r1, = 0x81
    str r1, [r0]

    ldr r0, = 0x40000400
    mov r1, #0x81
    str r1, [r0]

    ldr r0, = 0x40012C34
    ldr r1, = 0x1
    str r1, [r0]

    ldr r0, = 0x40012C38
    ldr r1, = 0x1
    str r1, [r0]

    ldr r0, = 0x40012C3C
    ldr r1, = 0x1
    str r1, [r0]

    ldr r0, = 0x40000434
    ldr r1, = 0x100
    str r1, [r0]

main:
    mov r8, # 500
jisuan:
    bl PWMzhankong
    subs r8, 1
    bl yanshi
    cmp r8, # 50
    bne jisuan
jisuan1:
    bl PWMzhankong
    adds r8, 1
    bl yanshi
    cmp r8, #500
    bne jisuan1
    b main

PWMzhankong:
    ldr r0, = 0x40000428
    str r8, [r0]
    bx lr

yanshi:
    cmp r5, #200
    bne yanshi
    mov r5, #0
    bx lr



_nmi_handler:
    bx lr
_hard_fault:
    bx lr
_memory_fault:
    bx lr
_bus_fault:
    bx lr
_usage_fault:
    bx lr
_dingshiqi:
    adds r5, 1
    bx lr
_tim3dingshiqi:
    push {lr}
    ldr r3, = 0x40012C20
    adds r7, 1
    cmp r7, # 1
    beq zhuangt1
    cmp r7, # 2
    beq zhuangt2
    cmp r7, # 3
    beq zhuangt3
    cmp r7, # 4
    beq zhuangt4
    cmp r7, # 5
    beq zhuangt5
    cmp r7, # 6
    beq zhuangt6
zhuangt1:
    ldr r1, = 0x41
    str r1, [r3]
    bl fanhui1

zhuangt2:
    ldr r1, = 0x401
    str r1, [r3]
    bl fanhui1
zhuangt3:

    ldr r1, = 0x410
    str r1, [r3]
    bl fanhui1

zhuangt4:
    ldr r1, = 0x14
    str r1, [r3]
    bl fanhui1
zhuangt5:

    ldr r1, = 0x104
    str r1, [r3]
    bl fanhui1
zhuangt6:

    ldr r1, = 0x140
    str r1, [r3]
    mov r7, # 0
    bl fanhui1
fanhui1:
    ldr r0, = 0x40000410
    mov r1, # 0
    str r1, [r0]
        pop {pc}