[url=home.php?mod=space&uid=72445]@[/url] stm32f030f4p6 asm
.thumb
.syntax unified
.section .data
.equ STACKINIT, 0x20000300
.equ shumaguanma, 0x20000304
.equ zhengxianzengjian, 0x20000308
.equ zhengxianzhengfu, 0x2000030c
.equ zhengxian90, 0x20000310
.equ zhengxian25734chu, 0x20000314
.equ zhengxianfudu, 0x20000318
.equ zhengxianfudupianyi, 0x2000031c
.equ zhengxiandianshu, 0x20000320
.equ zhengxianbiaozhizhen, 0x2000034c
.equ zhengxianbiao, 0x20000350
shumaguanmabiao: .int 0xfc,0x50,0xea,0xf2,0x56,0xb6,0xbe,0xd0,0xfe,0xfa
.align 4
cordicbiao:
.int 0x00003243, 0x00001DAC, 0x00000FAD, 0x000007F5, 0x000003FE, 0x000001FF, 0x000000FF, 0x0000007F, 0x0000003F, 0x0000001F, 0x0000000F, 0x00000007, 0x00000003, 0x00000001, 0x00000000, 0x0000000
.section .text
vectors:
.word STACKINIT
.word _start + 1
.word _nmi_handler + 1
.word _hard_fault + 1
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word 0
.word _svc_handler +1
.word 0
.word 0
.word _pendsv_handler +1
.word _systick +1 [url=home.php?mod=space&uid=72445]@[/url] 15
.word 0 @ _wwdg +1 @ 0
.word 0 @_pvd +1 @ 1
.word 0 @_rtc +1 @ 2
.word 0 @_flash +1 @ 3
.word 0 @ _rcc + 1 @ 4
.word 0 @_exti0_1 +1 @ 5
.word 0 @ _exti2_3 +1 @ 6
.word 0 @_exti4_15 +1 @ 7
.word 0 @ 8
.word 0 @_dma1_1 +1 @ 9
.word 0 @_dma1_2_3 +1 @ 10
.word 0 @_dma1_4_5 +1 @ 11
.word 0 @_adc1 +1 @ 12
.word 0 @_tim1_brk_up +1 @ 13
.word 0 @ _tim1_cc +1 @ 14
.word 0 @_tim2 +1 @ 15
.word 0 @_tim3 +1 @ 16
.word 0 @ 17
.word 0 @ 18
.word _tim14 +1 @ 19
.word 0 @ 20
.word 0 @_tim16 +1 @ 21
.word 0 @_tim17 +1 @ 22
.word 0 @_i2c +1 @ 23
.word 0 @ 24
.word 0 @_spi +1 @ 25
.word 0 @ 26
.word 0 @_usart1 +1 @ 27
_start:
shizhong:
ldr r0, = 0x40021000 @ rcc
ldr r2, = 0x40022000 @FLASH访问控制
movs r1, # 0x32
str r1, [r2] @FLASH缓冲 缓冲开启
ldr r1, = 0x1d0002 @HSE-PLL 6
str r1, [r0, # 0x04]
ldr r1, = 0x1090001
str r1, [r0]
dengrc:
ldr r1, [r0]
lsls r1, # 30
bpl dengrc
dengjingzhen:
ldr r1, [r0]
lsls r1, # 14
bpl dengjingzhen
dengpll:
ldr r1, [r0]
lsls r1, # 6
bpl dengpll
@0x34时钟控制寄存器 2 (RCC_CR2)
movs r1, # 0x01
str r1, [r0, # 0x34] @ HSI开14M时钟
dengdai14mshizhongwending:
ldr r1, [r0, # 0x34]
lsls r1, r1, # 30 @ 左移30位
bpl dengdai14mshizhongwending @ 等待14M时钟稳定
neicunqingling:
ldr r0, = 0x20000000
movs r1, # 0
ldr r3, = 0x1000
neicunqinglingxunhuan:
subs r3, # 4
str r1, [r0, r3]
bne neicunqinglingxunhuan
waisheshizhong: @ 外设时钟
@+0x14 #0(DMA),2(SRAM),4(FLITF),6(CRC),17(PA)
@18(PB),19(PC),20(PD),22(PF)
@+0x18 #0(SYSCFG),5(USART6),9(ADC),#11(TIM1)
@12(SPI), @14(USART1),16(TIM15),17(TIM16),
@18(TIM17),22(DBGMCU)
@+0X1C # 1(TIM3),4(TIM6),5(TIM7),8(TIM14),11(WWDG),
@14(SPI2),17(USART2),18(USART3),19(USART4),20(USART5)
@21(I2C1),22(I2C2),23(USB),28(PWR)
ldr r0, = 0x40021000
ldr r1, = 0x60005
str r1, [r0, # 0x14]
ldr r1, = 0x100
str r1, [r0, # 0x1c]
ldr r1, = 0x800
str r1, [r0, # 0x18]
waishezhongduan: @外设中断
@0xE000E100 0-31 写1开，写0没效
@0XE000E180 0-31 写1关，写0没效
@0XE000E200 0-31 挂起，写0没效
@0XE000E280 0-31 清除， 写0没效
systick:
@ 0xe000ed20 30-31 优先级
ldr r0, = 0xe000e010
ldr r1, = 47999 @ 重载数
str r1, [r0, # 4] @ 写入重载数
str r1, [r0, # 8] @ 清除当前数
movs r1, # 0
str r1, [r0] @ 开定时器
dmachushihua:
@+0=LSR,+4=IFCR,
@+8=CCR1,+c=CNDTR1,+10=CPAR1+14=CMAR1,
@+1c=CCR2,+20=CNDTR2,+24=CPAR2,+28=CMAR2
@+30=CCR3,+34=CNDTR3,+38=CPAR2,+3c=CMAR3
@+44=CCR4,+48=CNDTR4,+4c=CPAR4,+50=CMAR4
@+58=CCR5,+5c=CNDTR5,+60=CPAR5,+64=CMAR5
@+6C=CCR6,+70=CNDTR6,+74=CPAR6,+78=CMAR6
@+80=CCR7,+84=CNDTR7,+88=CPAR7,+8c=CMAR7
ldr r0, = 0x40020000
ldr r1, = 0x40012c3c @ 外设地址
str r1, [r0, # 0x60]
ldr r1, = zhengxianbiao @ 储存器地址
str r1, [r0, # 0x64]
ldr r1, = 200
str r1, [r0, # 0x5c]
ldr r1, = 0x25b1 @ 储存到外设
str r1, [r0, # 0x58]
tim1chushiha:
ldr r0, = 0x40012c00 @ tim1_cr1
movs r1, # 0
str r1, [r0, # 0x28] @ psc
ldr r1, = 100
str r1, [r0, # 0x2c] @ ARR
ldr r1, = 0x60
str r1, [r0, # 0x1c] @ ccmr2 CC3
ldr r1, = 0xd00 @ CC3 互补
str r1, [r0, # 0x20] @ ccer
ldr r1, = 0x8000
str r1, [r0, # 0x44] @ BDTR
ldr r1, = 0x800 @ CC3 DMA
str r1, [r0, # 0x0c] @ DIER
ldr r1, = 1
str r1, [r0]
io_she_zhi:
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@a(0x48000000)b(0x48000400)c(0x48000800)d(0x48000c00)f(0x48001400)
@ 输入（00），通用输出（01），复用功能（10），模拟（11）
@偏移0x4 = 端口输出类型 @ （0 推挽），（ 1 开漏）
@偏移0x8 = 输出速度 00低速， 01中速， 11高速
@偏移0xC = 上拉下拉 00无上下拉， 01 上拉， 10下拉
@偏移0x10 = 输入数据寄存器
@偏移0x14 = 输出数据寄存器
@偏移0x18 = 端口开 0-15置位
@偏移0x28 = 端口关
@0X20 = 复用低
@GPIO口0（0-3位）每个IO口占用4位
@ AF0 = 0X0000, AF1 = 0X0001, AF2 = 0X0010 AF3 = 0X0011, AF4 = 0X0100
@ AF5 = 0X0101, AF6 = 0X0111, AF7 = 0X1000
@0x24 = 复用高
@GPIO口8 （0-3位）每个IO口占用4位
@ AF0 = 0X0000, AF1 = 0X0001, AF2 = 0X0010 AF3 = 0X0011, AF4 = 0X0100
@ AF5 = 0X0101, AF6 = 0X0111, AF7 = 0X1000
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
ldr r0, = 0x48000000 @ gpio_a
ldr r1, = 0x28205600 @ pa4
str r1, [r0]
ldr r1, [r0, # 0x08]
ldr r2, = 0xfc00
orrs r1, r2
str r1, [r0, # 0x08]
ldr r1, = 0x40000 @ tim14映射到PA4
str r1, [r0, # 0x20] @ ARRL
ldr r1, = 0x200 @ tim1_ch3到PA10
str r1, [r0, # 0x24] @ ARRH
ldr r0, = 0x48000400
movs r1, # 0x08 @ pb1
str r1, [r0]
movs r1, # 0x0C
str r1, [r0, # 0x08]
movs r1, # 0x20 @ tim1_ch3n到PB1
str r1, [r0, # 0x20] @ ARRL
ldr r0, = 500 @点数
ldr r1, = 50 @ 最大幅度
zxspjia:
bl _zhengxianchushihua
ldr r7, = 0x5555
zxspyanshi:
bl _suanzhengxianbiao
subs r7, # 1
bne zxspyanshi
adds r1, # 1
cmp r1, r0
bne zxspjia
zxspjian:
bl _zhengxianchushihua
ldr r7, = 0x5555
zxspyanshi1:
bl _suanzhengxianbiao
subs r7, # 1
bne zxspyanshi1
subs r1, # 1
cmp r1, # 50
bne zxspjian
b zxspjia
tingting:
b tingting
_suanzhengxianbiao:
push {r0,r1,lr}
ldr r0, = zhengxiandianshu
ldr r1, [r0]
cmp r1, # 0
beq _suanzhengxianbiaofanhui
bl _suanzhengxian
_suanzhengxianbiaofanhui:
pop {r0,r1,pc}
_suanzhengxian:
push {r0-r7,lr}
ldr r7, = zhengxian90
ldr r6, [r7] @ 正90度
movs r4, # 0
subs r4, r6 @ 负90度
ldr r2, = zhengxianzengjian
ldr r3, [r2]
ldr r5, = zhengxianzhengfu @正弦正负标志
ldr r1, [r5]
cmp r1, # 0 @ 0 = 加， 1 = 减
bne _zhengxianjian
_zhengxianjia:
adds r3, # 1
str r3, [r2]
cmp r3, r6
bne _zhengxianfanhui
movs r1, # 1
str r1, [r5]
b _zhengxianfanhui
_zhengxianjian:
subs r3, # 1
str r3, [r2]
cmp r3, r4
bne _zhengxianfanhui
movs r1, # 0
str r1, [r5]
_zhengxianfanhui:
ldr r6, = zhengxian25734chu
ldr r6, [r6]
muls r3, r6
mov r0, r3
bl cordic
mov r3, r12
ldr r1, = 100000
muls r3, r1
asrs r3, # 14
ldr r6, = zhengxianfudu
ldr r6, [r6]
muls r3, r6
movs r3, r3
bpl _zhengxianbushifushu @不是负数
mvns r3, r3
adds r3, # 1
mov r12, r3
mov r11, r1
bl chufa
mov r3, r12
mvns r3, r3
adds r3, # 1
b _zhengxianfanhui1
_zhengxianbushifushu:
mov r12, r3
mov r11, r1
bl chufa
mov r3, r12
_zhengxianfanhui1:
ldr r6, = zhengxianfudupianyi
ldr r6, [r6]
adds r3, r6
ldr r0, = zhengxianbiaozhizhen
ldr r1, = zhengxianbiao
ldr r2, [r0]
strh r3, [r1, r2]
adds r2, # 2
str r2, [r0]
ldr r0, = zhengxiandianshu
ldr r1, [r0]
subs r1, # 1
str r1, [r0]
pop {r0-r7,pc}
_zhengxianchushihua:
@ r0 = 0到90度多少个点, r1 = 正弦波幅度和偏移
push {r0-r7,lr}
lsrs r0, # 2
ldr r7, = 25734
ldr r6, = zhengxian90
str r0, [r6]
mov r12, r7
mov r11, r0
bl chufa
mov r4, r12
ldr r5, = zhengxian25734chu
str r4, [r5]
ldr r5, = zhengxiandianshu
lsls r0, # 2
str r0, [r5]
ldr r5, = 0x40020000 @ dma
ldr r2, [r5, # 0x58]
movs r3, # 0
str r3, [r5, # 0x58]
str r0, [r5, # 0x5c]
str r2, [r5, # 0x58]
ldr r5, = 0x40012c00
str r3, [r5, # 0x24]
lsls r0, r1, # 1
str r0, [r5, # 0x2c]
ldr r5, = zhengxianfudu
str r1, [r5]
ldr r5, = zhengxianfudupianyi
str r1, [r5]
ldr r5, = zhengxianzengjian
movs r4, # 0
str r4, [r5]
ldr r5, = zhengxianzhengfu
str r4, [r5]
ldr r5, = zhengxianbiaozhizhen
str r4, [r5]
pop {r0-r7,pc}
cordic: @ 入 R0 ， 出R12
@ 16384 * 3.1415927/2 =25734
@ x= 0x26dd
@ r1=x,r2=y,r0=z,r4=d,r5=k,r6=cordic_mabiao
push {r0-r7,lr}
movs r5, # 0
mov r2, r5
mov r4, r5
ldr r1, = 0x26dd
cordicxunhuan: @ 循环
asrs r4, r0, # 15
@ x
mov r7, r2
asrs r2, r5
eors r2, r4
subs r2, r4
subs r3, r1, r2
@ y
mov r6, r1
asrs r1, r5
eors r1, r4
subs r1, r4
adds r7, r1
@ z
ldr r6, = cordicbiao
lsls r2, r5, # 2
ldr r1, [r6, r2]
eors r1, r4
subs r1, r4
subs r0, r1
mov r12, r7 @ 正弦
mov r1, r3 @
mov r2, r7
adds r5, # 1
cmp r5, # 16
bne cordicxunhuan
pop {r0-r7,pc}
zhuanshumaguanma:@ 16进制转数码管码
@ R0要转的数据， R1长度，R2结果表首地址
push {r0-r7,lr}
ldr r7, = shumaguanmabiao
movs r5, # 10
mov r11, r5
xunhuanqiuma:
mov r12, r0
bl chufa
mov r4, r12
muls r4, r5
mov r6, r4
subs r3, r0, r6
lsls r3, # 2
ldr r6, [r7, r3]
str r6, [r2]
adds r2, r2, # 4
mov r0, r12
subs r1, # 1
bne xunhuanqiuma
pop {r0-r7,pc}
xieshumaguan: @ r6=位数 @数码管码
push {r0-r7,lr}
ldr r1, = 0x7f7f7f7f
movs r2, # 0x01
movs r7, # 0
ldr r5, = shumaguanma
shumaguanshuaxin:
ldr r3, [r5, r7]
lsrs r4, r1, # 24
lsls r4, r4, # 8
orrs r4, r4, r3
mov r12, r4
bl xie595
rors r1, r2
adds r7, r7, # 4
cmp r7, r6
bcc shumaguanshuaxin
pop {r0-r7,pc}
xie595: @ R12=要写的数据
push {r0-r7,lr}
movs r0, # 0x40
movs r7, # 0x80
movs r6, # 0x20
mov r5, r12
movs r3, # 16 @16位
ldr r2, = 0x48000000 @ gpioa
movs r1, # 0x01
xunhuan595:
str r6, [r2, # 0x18]
bl yanshi
tst r5, r1
bne xie595_0
str r7, [r2, # 0x28]
b suocun595
xie595_0:
str r7, [r2, # 0x18]
suocun595:
bl yanshi
lsrs r5, # 1
str r6, [r2, # 0x28]
bl yanshi
subs r3, r3, # 1
bne xunhuan595
str r0, [r2, # 0x18]
bl yanshi
str r0, [r2, # 0x28]
bl yanshi
pop {r0-r7,pc}
yanshi:
push {r0-r7,lr}
ldr r0, = 10
yanshi1:
subs r0, # 1
bne yanshi1
pop {r0-r7,pc}
chufa: @软件除法
@ r12 除以 R11
push {r0-r7,lr}
mov r6, r12
cmp r6, # 0
beq chufafanhui
mov r7, r11
cmp r7, # 0
beq chufafanhui
movs r0, # 0
chufaxunhuan:
mov r12, r6
bl jianceweishu
mov r2, r12
mov r12, r7
bl jianceweishu
mov r3, r12
subs r2, r3, r2
mov r4, r7
lsls r4, r2
mov r3, r4
cmp r6, r3
bcc dd1
b dd2
dd1:
subs r2, r2, # 1
lsrs r3, # 1
dd2:
subs r6, r6, r3
movs r3, # 1
lsls r3, r2
orrs r0, r3
cmp r6, r7
bcs chufaxunhuan
mov r12, r0
chufafanhui:
pop {r0-r7,pc}
jianceweishu:
push {r0-r7,lr}
movs r0, # 0
mov r1, r12
jianceweishu1:
movs r1, r1
bmi weishufanhui
adds r0, r0, # 1
lsls r1, # 1
b jianceweishu1
weishufanhui:
mov r12, r0
pop {r0-r7,pc}
_nmi_handler:
bx lr
_hard_fault:
bx lr
_svc_handler:
bx lr
_pendsv_handler:
bx lr
_systick:
bx lr
_tim14:
tim14ting:
bx lr
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