1、RCC相关:: [. E* k( P8 \, S: x0 B, n
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APB2启动时钟项:( N9 e+ {$ m% b5 C) b9 {8 p2 j- X
- RCC_APB2Periph_AFIO, RCC_APB2Periph_GPIOA, RCC_APB2Periph_GPIOB,& J9 F6 k+ P5 P2 T5 W
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- RCC_APB2Periph_GPIOC, RCC_APB2Periph_GPIOD, RCC_APB2Periph_GPIOE,
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% Y( L( B t: O4 K Z- RCC_APB2Periph_GPIOF, RCC_APB2Periph_GPIOG, RCC_APB2Periph_ADC1,
& p' Q5 z" Z9 |* U6 ?$ d3 x' k
+ B( r3 s: V; I# s8 |/ M- RCC_APB2Periph_ADC2, RCC_APB2Periph_TIM1, RCC_APB2Periph_SPI1,
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* j: r. G! S3 Y' P1 Z- RCC_APB2Periph_TIM8, RCC_APB2Periph_USART1, RCC_APB2Periph_ADC3,/ C s. t; k8 [8 e* b$ i
7 Y" ]8 \$ N2 m6 _- RCC_APB2Periph_ALL
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APB2启动函数:
* k- d- B( P5 l1 _! F. H- RCC_APB2PeriphClockCmd(XX,ENABLE);
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# `8 z0 U( B) I
# d3 R2 V. E0 C2 RAPB1启动时钟项:. }! B; Z$ R2 A/ U
- RCC_APB1Periph_TIM2, RCC_APB1Periph_TIM3, RCC_APB1Periph_TIM4,
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- RCC_APB1Periph_TIM5, RCC_APB1Periph_TIM6, RCC_APB1Periph_TIM7,1 |9 G' S0 ]) ~. _/ ?( X/ W5 d
+ ]" ]' a) F& y* S* d3 t3 a7 Z R- RCC_APB1Periph_WWDG, RCC_APB1Periph_SPI2, RCC_APB1Periph_SPI3,
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& S, ]/ N6 \8 q8 _ t+ h- Q7 V2 N- RCC_APB1Periph_USART2, RCC_APB1Periph_USART3, RCC_APB1Periph_USART4,
/ N9 K3 u, m) Q! v+ T - . o1 Y. V( O1 ^6 S& { Z: ~
- RCC_APB1Periph_USART5, RCC_APB1Periph_I2C1, RCC_APB1Periph_I2C2,, L! `& v8 G, j4 y- B
& Z i3 `+ T% v9 [4 S7 }- RCC_APB1Periph_USB, RCC_APB1Periph_CAN1, RCC_APB1Periph_BKP,% t; n8 w$ u- E/ m- @; q& d, ?/ Q
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- RCC_APB1Periph_PWR, RCC_APB1Periph_DAC, RCC_APB1Periph_ALL
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e( W: a, h: \9 s, n4 ~$ B3 nAPB1启动函数: 7 Z4 ]; F# c5 ]; a6 n
- RCC_APB2PeriphClockCmd(XX,ENABLE);
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AHB启动时钟项:
' R8 q) l2 V1 }! @, a/ d# o8 l1 f- RCC_AHBPeriph_DMA1
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6 q; y8 ^2 z1 k% S- RCC_AHBPeriph_DMA2+ o1 V# x* M0 g6 l
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- RCC_AHBPeriph_SRAM
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- RCC_AHBPeriph_FLITF
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e) Q( l; b8 a: b, y4 e( Q- RCC_AHBPeriph_CRC1 H6 Y& z' r2 i; q D
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- RCC_AHBPeriph_FSMC! |' C1 V( Y6 X4 d" [% W' |
+ [5 F3 v z) b. D- RCC_AHBPeriph_SDIO
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AHB启动函数: - p( B- ^# m: f" U4 _% ^# @0 l$ r
- RCC_AHBPeriphClockCmd (XX,ENABLE);
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2、GPIO相关:
5 N3 x; b2 X# ~GPIO模式:
/ x1 a0 ^* U% I( [- GPIO_Mode_AIN:模拟输入 GPIO_Mode_IN_FLOATING:浮空输入3 b- c0 F1 i. m
4 M _# h; j; f7 D- GPIO_Mode_IPD:下拉输入 GPIO_Mode_IPU:上拉输入5 V# @8 S- j& U+ \' H8 o5 i6 H( [+ } ?
8 f/ E/ K7 d( W- GPIO_Mode_Out_OD:开漏输出 GPIO_Mode_Out_PP:推挽输出" m# Q; D% @7 |5 P
2 X9 M4 G+ R1 T8 g& F6 i- H- GPIO_Mode_AF_OD:复用开漏输出 GPIO_Mode_AF_PP:复用推挽输出
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GPIO速度:1 g* q: G- B4 K, l W8 a: c3 u1 U
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- GPIO_Speed_2MHz
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: p% ]# W1 c4 q+ f$ ~1 L0 @8 u$ D- GPIO_Speed_10MHz5 x" d) [3 b; n, [6 q5 _
; L- H" m/ o7 L+ M$ g5 g1 G- GPIO_Speed_50MHz
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GPIO引脚声明:
# F- b. q+ e8 Y" R- <span style="background-color: rgb(255, 255, 255);">G</span>PIO_InitStructure.GPIO_Pin = GPIO_Pin_x; x:1~15或者all* P' P$ U, {: J: N s
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GPIO初始化函数:6 X3 z; I/ N& e5 Q0 o
- GPIO_Init(GPIOx, &GPIO_InitStructure); x:A~G
复制代码 注:需要定义GPIO结构体变量,GPIO_InitTypeDef GPIO_InitStructure;! U J6 b$ H8 f' k
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3、ADC相关. \ G: S$ R5 ?
最好需要重新初始化:ADC_DeInit(ADCx);" M6 I4 ]7 ?. [: P) ^* @
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ADC工作模式选择:
0 R C4 W9 \" `9 e$ |5 f* g- ADC_Mode_Independent:独立工作 ( `* R& h; ~. l* W
* d4 s$ g& R+ ^9 `- ADC_Mode_RegInjecSimult:混合同步+注入同步 ( _& }5 n4 L8 g
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- ADC_Mode_RegSimult_AlterTrig:混合同步+交替触发
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+ }! Z. e3 E; F- R7 r1 V1 n- ADC_Mode_InjecSimult_FastInterl:混合同步+快速交替
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% M N5 z( T0 Z3 @, }! Z5 O- ADC_Mode_InjecSimult_SlowInterl:混合同步+慢速交替: _4 v2 z0 X% i7 O# J
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- ADC_Mode_InjecSimult:注入同步
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- \$ }! u+ z9 b0 ]' K- ADC_Mode_RegSimult:规则同步
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- ADC_Mode_FastInterl:快速交替
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1 S( Q- S1 v S. m- ADC_Mode_SlowInterl:慢速交替
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- ADC_Mode_AlterTrig:交替触发
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, P# W2 P3 s3 n& G- J& b8 u H0 O- 通过ADC_InitStructure.ADC_Mode = XX进行赋值
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ADC扫描使能:
2 c- {. z' m! S4 \% M8 g- ADC_InitStructure.ADC_ScanConvMode = ENABLE;
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ADC连续 /单次模式选择:1 A+ I7 w" `$ t0 a* o
- ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
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ADC转换控制方式:& b4 B, [/ w% L5 K5 p {
- ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;//有软件控制转换
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1 ~6 D/ s9 i2 c7 [. g8 o0 aADC数据对齐方式;- ADC_DataAlign_Right:右对齐 / ADC_DataAlign_Right:左对齐
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- ADC_InitStructure.ADC_DataAlign =XX
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ADC转换通道数: - ADC_InitStructure.ADC_NbrOfChannel = X // X=1~16
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4 p( Z* |, [4 d1 t2 d) S+ qADC初始化函数: - ADC_Init(ADCx, &ADC_InitStructure);
复制代码 注:在开始要定义结构体变量 ADC_InitTypeDef ADC_InitStructure
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8 a4 d9 ~3 g+ k2 C8 `! a& i9 L是否使能ADCx DMA : - ADC_DMACmd(ADCx, ENABLE);
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+ f$ ]! }9 N9 f- Z' `使能ADCx:# s/ @( h1 B9 x
' C" e, S' `9 L9 n初始化ADC1校准寄存器:
- `, Q. t7 @9 \; L- ADC_ResetCalibration(ADCx);
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检测ADC1校准寄存器初始化是否完成:
* W' y/ y6 K& C9 K9 }- while(ADC_GetResetCalibrationStatus(ADCx));
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! ]1 j7 L; v" J& A8 \- n' C开始校准ADC1: - ADC_StartCalibration(ADCx);
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检测是否完成校准:
9 W- G+ q2 V( |- while(ADC_GetCalibrationStatus(ADCx));
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% P ^2 _! G. M. c1 G% mADC1转换软件启动: - ADC_SoftwareStartConvCmd(ADCx, ENABLE);
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0 j( E9 c( w8 b* N4、DMA相关:
+ ^% v9 S4 f) i复位通道:
0 _1 N4 @. m) j# c- DMA_DeInit(DMAy_Channelx);//复位DMAy通道x,y=1时,x=1~7;y=2时,x=1~5
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定义外设基地址,全局变量:
1 r! d x6 R9 R- DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;//地址自己定义
复制代码 如:#define ADC1_DR_Address ((u32)0x4001244C)- ^! o$ c; d; a& I* ^! G
. R$ h5 k) A& w' F定义DMA存储器地址,全局变量u32
, k6 T& } O& z- DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC_ConvertedValue; //定义DMA通道存储器地址
复制代码 如:volatile unsigned short int ADC_ConvertedValue[8];# z/ ^, N+ a( G9 x8 E8 ~0 X
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DMA外设方向:& [" o9 b8 R+ H! Z q
- DMA_InitStructure.DMA_DIR = XX;
复制代码 DMA_DIR_PeripheralSRC:外设为数据传输的来源,DMA_DIR_PeripheralDST:外设为数据传输的目的地
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6 }% Y k2 a. W7 q M dDMA传输数量寄存器值,即缓存大小,单位由MemoryDataSize或PeripheralDataSize决定:
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! E. i1 C5 r( |# IDMA_InitStructure.DMA_BufferSize = x;
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; y; D Q A: J, u+ {7 ^//定义DMA缓冲区大小x,如8通道ADC,则x就为8
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/ q. A: b j: ~, U5 `* q! dDMA外设地址寄存器变不变:9 A' `8 v6 H7 r7 e( C( y
- DMA_InitStructure.DMA_PeripheralInc = x;
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DMA_PeripheralInc_Disable:外设地址寄存器不变 DMA_PeripheralInc_Enable:外设地址寄存器递增
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2 g X( [7 q6 P2 c; b, o- iDMA内存地址寄存器变不变:$ l# F2 p+ K, G
- DMA_InitStructure.DMA_MemoryInc = X;
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V" R1 h4 ^) [, ZDMA_MemoryInc_Disable:内存地址寄存器不变 DMA_MemoryInc_Enable:内存地址寄存器递增
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外设数据宽度:; [& G$ X! o: i3 q" K2 W8 k6 j6 W
- DMA_InitStructure.DMA_PeripheralDataSize = X;
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DMA_PeripheralDataSize_Byte 数据宽度为8位6 H3 F9 Y b* p& w* e
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DMA_PeripheralDataSize_HalfWord 数据宽度为16位- A) p8 M. }' T* [
/ F1 J2 B0 V; `3 p/ gDMA_PeripheralDataSize_Word 数据宽度为32位
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存储器数据宽度:. ?/ {+ |! w c5 M$ Q. d
- DMA_InitStructure.DMA_MemoryDataSize = X;
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DMA_MemoryDataSize_Byte 数据宽度为8位
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DMA_MemoryDataSize_HalfWord 数据宽度为16位0 d3 ^3 o8 H' F. X% V7 \3 c$ F' L
& t5 F! p2 k9 n3 T/ f$ j3 ?' S# yDMA_MemoryDataSize_Word 数据宽度为32位$ R0 x+ E- K0 Z
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模式选择:5 J! @1 G4 s5 \; O: g% c
- DMA_InitStructure.DMA_Mode =x;
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DMA_Mode_Circular: 循环模式
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DMA_Mode_Normal:正常模式
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, p, X2 }5 |6 X通道软件优先级设置:. |; M# ?. U8 K1 T
- DMA_InitStructure.DMA_Priority =x;
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, H4 W; V& c; M. r2 }5 R: t" VDMA_Priority_VeryHigh 最高优先级5 y7 C! K# q5 \+ ]( I
8 a6 b! O0 I9 q: N' X h! [/ W* BDMA_Priority_High 高优先级
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DMA_Priority_Medium 中优先级
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DMA_Priority_Low 低优先级
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6 Z$ ~2 U% ^; X, X$ pDMA内存到内存的传输使能: - DMA_InitStructure.DMA_M2M = x
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}# v9 i5 L9 Q; v& i r7 XDMA_M2M_Enable:使能# o1 V9 G6 `4 V
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DMA_M2M_Disable:未使能7 `6 [, W/ l3 Q% J; G1 v' j. O
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DMA初始化函数: ?3 n) S4 e8 h0 g1 i
- DMA_Init(DMAy_Channelx , &DMA_InitStructure);
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DMA通道使能函数:
3 O4 U5 C* }" }6 Q2 ?- DMA_Cmd(DMAy_Channelx , ENABLE); //使能DMA通道1
复制代码 注:在开始要定义结构体变量 DMA_InitTypeDef DMA_InitStructure) h8 B1 Y; J" _9 l
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/ ^9 g: t% V p4 g+ F: J3 Z" x7 c5、NVIC相关:" t3 p2 W$ ]: Q+ c0 s
优先级组设定:" W+ a( t; G: i7 L
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_x);
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- NVIC_PriorityGroup_0: 0 bits for pre-emption priority
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- 4 bits for subpriority
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+ L$ t4 w2 w, l8 w; k9 o- NVIC_PriorityGroup_1: 1 bits for pre-emption priority
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- 3 bits for subpriority' M% g' T' K+ U/ q" O t
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- NVIC_PriorityGroup_2: 2 bits for pre-emption priority# j: ~$ T# G: I! g
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- 2 bits for subpriority3 E; B7 d2 |( X d
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- NVIC_PriorityGroup_3: 3 bits for pre-emption priority
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& Z) I/ [3 }6 I, A- 1 bits for subpriority
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7 j& _; e: [* F% o" x- NVIC_PriorityGroup_4: 4 bits for pre-emption priority
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- 0 bits for subpriority
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设置中断:
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- NVIC_InitStructure.NVIC_IRQChannel =x;
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/ c0 o8 T, z- C; |9 ]/ I- ADC1_2_IRQn = 18, /*!< ADC1 and ADC2 global Interrupt*/
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7 a8 p% E6 h, |$ X+ n0 K- USB_HP_CAN1_TX_IRQn = 19, /*!< USB Device High Priority or CAN1 TX Interrupts */7 n( e! V5 Y6 D# k) L- Z
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- USB_LP_CAN1_RX0_IRQn = 20, /*!< USB Device Low Priority or CAN1 RX0 Interrupts */
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- CAN1_RX1_IRQn = 21, /*!< CAN1 RX1 Interrupt*/
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- CAN1_SCE_IRQn = 22, /*!<CAN1 SCE Interrupt*/
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8 ^. e: s1 l9 H- EXTI9_5_IRQn = 23, /*!< External Line[9:5] Interrupts*/
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- TIM1_BRK_IRQn = 24, /*!< TIM1 Break Interrupt*/! n1 j7 z& B I6 G G
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- TIM1_UP_IRQn = 25, /*!< TIM1 Update Interrupt*// F8 E0 @) d6 ]( Y5 ~2 |
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- TIM1_TRG_COM_IRQn = 26, /*!< TIM1 Trigger and Commutation Interrupt*/
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+ e6 z% |6 I8 e4 t6 w. q2 O- TIM1_CC_IRQn = 27, /*!< TIM1 Capture Compare Interrupt*/
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- TIM2_IRQn = 28, /*!< TIM2 global Interrupt */3 g9 ~- f! L3 ~
3 W3 W* f" k- `5 |9 H t- TIM3_IRQn = 29, /*!< TIM3 global Interrupt */& G$ s, P7 F9 o# e: o
& V3 W( Z, a: H- TIM4_IRQn = 30, /*!< TIM4 global Interrupt*/
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- I2C1_EV_IRQn = 31, /*!< I2C1 Event Interrupt*/
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- I2C1_ER_IRQn = 32, /*!< I2C1 Error Interrupt*/
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( b8 e4 @& Z, Q& m5 N5 F7 T- I2C2_EV_IRQn = 33, /*!< I2C2 Event Interrupt */
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5 q3 K9 K9 k6 P' Q# j- I2C2_ER_IRQn = 34, /*!< I2C2 Error Interrupt */% r( V1 k0 i' d" n! A7 O* q, c
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- SPI1_IRQn = 35, /*!< SPI1 global Interrupt*/
* B4 V" f. J9 ?/ e8 u& ^- @
; N: Y$ h* r8 C- SPI2_IRQn = 36, /*!< SPI2 global Interrupt*/5 o/ R* X! d' }; E/ H" ^% o
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- USART1_IRQn = 37, /*!< USART1 global Interrupt*/
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2 z- C: c! p1 U, l+ o- USART2_IRQn = 38, /*!< USART2 global Interrupt*/
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4 T* H6 G7 c: @5 ]6 V' ]- USART3_IRQn = 39, /*!< USART3 global Interrupt*/3 {! H: k3 h' J+ H' t3 F9 m g
' g3 X, \) I9 K2 v- EXTI15_10_IRQn = 40, /*!< External Line[15:10] Interrupts*/
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- RTCAlarm_IRQn = 41, /*!< RTC Alarm through EXTI Line Interrupt*/! _: |* t9 ~3 e) |
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- USBWakeUp_IRQn = 42, /*!< USB Device WakeUp from suspend through EXTI Line Interrupt */
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4 o6 E& O% i% P" Q- TIM8_BRK_IRQn = 43, /*!< TIM8 Break Interrupt */
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. B0 m0 D3 l- P7 W/ x' x- TIM8_UP_IRQn = 44, /*!< TIM8 Update Interrupt\*/& e$ a. u% G( G1 C# s8 S
1 a0 W: P/ b) t5 a, U- TIM8_TRG_COM_IRQn = 45, /*!< TIM8 Trigger and Commutation Interrupt$ q% _* i: p0 ]2 _$ g
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- TIM8_CC_IRQn = 46, /*!< TIM8 Capture Compare Interrupt*/ n; N& @ {& I; M3 v9 i
: B* y& |& Y: u. _2 [- ADC3_IRQn = 47, /*!< ADC3 global Interrupt*/
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f3 T# N2 k0 u8 }' _8 l) U5 ?! S- FSMC_IRQn = 48, /*!< FSMC global Interrupt */
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- SDIO_IRQn = 49, /*!< SDIO global Interrupt\*/
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% Y( v) B; v' s: H r2 @( G* `5 G# }- TIM5_IRQn = 50, /*!< TIM5 global Interrupt*/7 e% W+ q. o9 w [; i3 C1 _3 {2 s
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- SPI3_IRQn = 51, /*!< SPI3 global Interrupt*/
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- UART4_IRQn = 52, /*!< UART4 global Interrupt */
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- UART5_IRQn = 53, /*!< UART5 global Interrupt */' I" A- k# m/ u, A
6 H. k- c3 P" `6 p# h* E; i- TIM6_IRQn = 54, /*!< TIM6 global Interrupt */
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0 I; E# f1 |) a7 Q/ g6 m- TIM7_IRQn = 55, /*!< TIM7 global Interrupt */; f/ b3 H) F$ v. z) i/ Y! [
7 s! M5 p3 |# ]# b7 B" A- {$ n- DMA2_Channel1_IRQn = 56, /*!< DMA2 Channel 1 global Interrupt*/
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- DMA2_Channel2_IRQn = 57, /*!< DMA2 Channel 2 global Interrupt */
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- DMA2_Channel4_5_IRQn = 59, /*!< DMA2 Channel 4 and Channel 5 global Interrupt*/
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设置抢占优先级:
% K" e) g* g2 g& x: ?( ^- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =X; //抢占优先级 X
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1 V: X3 i3 [2 j设置子优先级为:) ^0 W' A9 w/ R4 @% A7 H
- NVIC_InitStructure.NVIC_IRQChannelSubPriority =X; //抢占优先级 X
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7 P5 D% h! t4 p' T使能中断:2 j2 b, l) O! x) x! O
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能
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3 ?3 x \; L/ l7 E6 |7 `, {NVIC初始化函数:
1 M% r# z% j! [' _- NVIC_Init(&NVIC_InitStructure);
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6、USART相关:2 M" {/ g F+ E, K
USART波特率选择:7 |' @# f1 |9 i+ `6 Z' Q" X2 T, o
- USART_InitStructure.USART_BaudRate =XX; //波特率为XX bps
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数据位位数选择:% a7 H/ g' C: h8 A4 Z9 q
- USART_InitStructure.USART_WordLength = USART_WordLength_Xb;
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停止位位数选择:
( f% ~! _& a. y# ~, ~6 c9 g- USART_InitStructure.USART_StopBits = USART_StopBits_1; //停止位1位
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- #define USART_StopBits_1 ((uint16_t)0x0000)
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- #define USART_StopBits_0_5 ((uint16_t)0x1000)% x( u# ^1 Y2 X& U0 Z
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- #define USART_StopBits_2 ((uint16_t)0x2000)7 _# h+ q/ T c! i
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- #define USART_StopBits_1_5 ((uint16_t)0x3000)
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& P1 @+ f/ d" p0 _5 X9 C有无校验位选择:
4 G' t! V% p, P( \/ i- USART_InitStructure.USART_Parity = USART_Parity_No; //无校验位
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- #define USART_Parity_No ((uint16_t)0x0000)0 s8 f6 o5 V" k D5 k \
' a# @* Y3 m% j" J& d7 J; Y- #define USART_Parity_Even ((uint16_t)0x0400)& ~ {/ b' O& S5 C, e3 c# q
% B5 c+ N. K; A- #define USART_Parity_Odd ((uint16_t)0x0600)
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6 v; ]( f+ \2 c/ S3 ~8 p. _有无硬件流控选择:
7 U5 i3 i! W& O9 r. r- USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;5 r+ M6 k! ~6 {; I9 {' U6 ~
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- //无硬件流控
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- #define USART_HardwareFlowControl_None ((uint16_t)0x0000)6 a+ Q1 j0 k& c2 v
: c3 q3 b9 v2 Z7 @; M; M- #define USART_HardwareFlowControl_RTS ((uint16_t)0x0100)7 Q* d& w* W8 G1 N7 L# B+ K
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- #define USART_HardwareFlowControl_CTS ((uint16_t)0x0200)
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, z& a. D$ P; y8 V- Q1 w }/ r- #define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300)
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! N" {- Q" G) z5 R6 R u+ m1 C模式选择:, Q* N! T h" D2 D4 u7 w7 h
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- USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式5 q( { I: V0 \
7 { m, I* N8 E4 @3 j1 x- B' p- #define USART_Mode_Rx ((uint16_t)0x0004)% D9 E2 k' u" L \4 N3 W% x
; \0 m* ~: J' A9 C! w; r- #define USART_Mode_Tx ((uint16_t)0x0008)
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! X8 K z$ e1 v' o! y, r配置串口参数函数:& C! R. z- X+ G9 K1 i- {
- USART_Init(USARTx, &USART_InitStructure);
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- USARTx 可选:USART1, USART2, USART3, UART4 or UART5
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- USART_ITConfig(USARTx, USART_IT_RXNE, ENABLE);
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# G4 S4 j# {" w% @& q: ]使能发送缓冲空中断:
# M+ Z' z; f' K7 t0 y. |) ?- USART_ITConfig(USARTx, USART_IT_TXE, ENABLE);
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使能发送完成中断:
6 l' G- P8 T2 A& @0 o; G5 Y- USART_ITConfig(USARTx, USART_IT_TC, ENABLE)
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8 o4 u1 n: ?5 e) N9 s. ~" |% T使能USART:
, I$ X3 y9 ~3 e7 |$ B- USART_Cmd(USARTx, ENABLE);
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