1、RCC相关:1 X7 z% [; f4 U$ j! K; b4 t% S2 B
3 j% `# S; k' x3 o* b1 ?+ Q. MAPB2启动时钟项:
$ i& Y+ s# `; y4 t F- RCC_APB2Periph_AFIO, RCC_APB2Periph_GPIOA, RCC_APB2Periph_GPIOB,/ F& n6 f. B f+ [" C2 f
- - ]* n9 B) G+ c& Z5 d- h3 {
- RCC_APB2Periph_GPIOC, RCC_APB2Periph_GPIOD, RCC_APB2Periph_GPIOE,
z0 W k1 P& r - 2 ~# _& K( X: F9 L4 `) ]( I
- RCC_APB2Periph_GPIOF, RCC_APB2Periph_GPIOG, RCC_APB2Periph_ADC1,
8 }% k9 u- y( o: y
' l8 ^1 B' }$ X- RCC_APB2Periph_ADC2, RCC_APB2Periph_TIM1, RCC_APB2Periph_SPI1,
Z5 v8 T& U$ Z+ i - 9 c4 B" s' ]$ c) _
- RCC_APB2Periph_TIM8, RCC_APB2Periph_USART1, RCC_APB2Periph_ADC3,; ~' s, F7 S. P# q+ w% L. ~
; B* j. u0 y( J/ ]2 h* {5 S- RCC_APB2Periph_ALL
复制代码 9 I1 T9 Z1 ^# `
APB2启动函数: 8 @5 D$ T+ o1 S8 l
- RCC_APB2PeriphClockCmd(XX,ENABLE);
复制代码 ' r& V. C' M2 \' z7 n; c" t! |
& Z( h, W) A6 j4 B$ A3 g4 S: z' m JAPB1启动时钟项:
( c* w" \9 H5 W8 k' ^1 X, J- RCC_APB1Periph_TIM2, RCC_APB1Periph_TIM3, RCC_APB1Periph_TIM4,6 Q( `$ r! p$ N/ m" ]8 @
- 1 F" y0 S/ X: H: d7 H
- RCC_APB1Periph_TIM5, RCC_APB1Periph_TIM6, RCC_APB1Periph_TIM7,
3 o8 U \" z# v* \ - m) a7 n% V8 j* s
- RCC_APB1Periph_WWDG, RCC_APB1Periph_SPI2, RCC_APB1Periph_SPI3,
1 ?! e- Q, m, x( X6 x- z
* z, Q2 ~5 b& v3 ^- RCC_APB1Periph_USART2, RCC_APB1Periph_USART3, RCC_APB1Periph_USART4,
$ r" W( X" ~6 F3 j$ {7 Z
2 E, D; P6 a" h% f0 |* T/ x8 a- RCC_APB1Periph_USART5, RCC_APB1Periph_I2C1, RCC_APB1Periph_I2C2,; \* t3 o; z4 Z1 q8 x Q. v
6 W) n1 n# ^7 m, X1 L! A3 w2 Z- RCC_APB1Periph_USB, RCC_APB1Periph_CAN1, RCC_APB1Periph_BKP,6 D! C" |- g7 @( S9 M
- , ]; ~: ]3 ?$ ?; D3 r+ L# x
- RCC_APB1Periph_PWR, RCC_APB1Periph_DAC, RCC_APB1Periph_ALL
复制代码
n& A8 o# i' x9 l9 |" k9 VAPB1启动函数: " T* s2 @, [" q. \* x" F/ K
- RCC_APB2PeriphClockCmd(XX,ENABLE);
复制代码
& @9 Q5 ?5 v; T% m! E0 EAHB启动时钟项:( ^( f9 [6 m& l1 t9 _
- RCC_AHBPeriph_DMA1
5 @( k1 |, N7 M9 Q* k2 C+ g) p1 c - ( ~! c' ?- g" G1 C5 s( x
- RCC_AHBPeriph_DMA2
1 `2 r3 r9 O5 \ l# F - 9 N" t" I1 |; b5 z0 {
- RCC_AHBPeriph_SRAM* m0 \/ x) ~& C, ]6 G
- N/ W8 k* f9 {1 _; g- H- RCC_AHBPeriph_FLITF
6 K7 t/ r2 u1 \: u. X
9 P& l: |! k% g/ i2 t- RCC_AHBPeriph_CRC
* {# T! l+ |( u - & m0 t* }: f" X, o) y' u, V
- RCC_AHBPeriph_FSMC, ?: A' [3 h, W; l" \
- " p- a9 \, i- `# G( {5 }7 L% a
- RCC_AHBPeriph_SDIO
复制代码 3 }: ]1 U3 u- T7 }. h; ]+ N3 q& |
AHB启动函数: * |. j( `6 `5 H* Z& O% e
- RCC_AHBPeriphClockCmd (XX,ENABLE);
复制代码 $ m1 R. i! k. N
2、GPIO相关:
3 L+ k) m: a6 c$ wGPIO模式:3 U6 e, W( O+ ?8 M
- GPIO_Mode_AIN:模拟输入 GPIO_Mode_IN_FLOATING:浮空输入
- x; ]9 z! `# y+ M5 i$ |: O6 [7 r3 n4 ~
& [$ L8 _0 h9 d7 s$ \" G- GPIO_Mode_IPD:下拉输入 GPIO_Mode_IPU:上拉输入
" Y6 S$ W9 U2 `, m1 Y2 t - 8 a0 R+ k& O& t9 m
- GPIO_Mode_Out_OD:开漏输出 GPIO_Mode_Out_PP:推挽输出
# s) G1 q& n! M8 K1 @
; f: I y) I' K0 _) L- GPIO_Mode_AF_OD:复用开漏输出 GPIO_Mode_AF_PP:复用推挽输出
* S* H) H+ |; K7 L, O, B( N
复制代码 7 ^' G* ?/ v1 Y. e% }7 m
GPIO速度:
5 g8 J m* h* o
# W. b7 p$ `9 p8 e M9 A- GPIO_Speed_2MHz3 C5 |+ b: P! ~5 E- Z* l0 i
6 I3 l* i5 ]. [$ S- GPIO_Speed_10MHz6 U& C; r: F! _+ k* n+ Y; f3 I$ {1 S
- 1 {1 _. F7 n" ^! \
- GPIO_Speed_50MHz
复制代码 + r- e9 t% W: m; M! ^" j3 ^4 R3 W ~
GPIO引脚声明:
# g& H0 P( n d6 Q- <span style="background-color: rgb(255, 255, 255);">G</span>PIO_InitStructure.GPIO_Pin = GPIO_Pin_x; x:1~15或者all5 v4 u4 X. K% a( }. Z' x( j8 i X
复制代码
$ a2 M3 \3 i, x; y+ bGPIO初始化函数:
$ l+ w6 O) R* W6 V# z- z- 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;$ I& j9 P- l; P5 B6 ^/ M- |
; w" a! a7 t! A5 _3、ADC相关# j8 D0 E9 g+ K& t4 D
最好需要重新初始化:ADC_DeInit(ADCx);
: Y$ C+ H( P8 C, Y( j- o! f2 i9 N
3 O, z2 v/ n4 t: sADC工作模式选择:
! t+ }5 b* G% R: L' O- ADC_Mode_Independent:独立工作 ' p8 ^' o/ G. t7 q* `* Y; o
- * H5 X/ a3 r' l. B5 i/ m, r
- ADC_Mode_RegInjecSimult:混合同步+注入同步 9 L# L# [8 Z" Y2 |7 D3 a: C3 Y, g6 L
- [) z$ Z J, H' H9 c: D) o- ADC_Mode_RegSimult_AlterTrig:混合同步+交替触发& T* _* \/ [3 g3 A4 b, b
9 \1 A0 N, T- y: ~4 d+ i6 C$ Y- ADC_Mode_InjecSimult_FastInterl:混合同步+快速交替
8 L. L: F$ j* n# G& y- p1 Q
4 _3 E' A- J4 [- [1 W4 R4 g- ADC_Mode_InjecSimult_SlowInterl:混合同步+慢速交替
% @7 D( Y9 s% M1 N: J2 f; L - , I6 J, a" y* x/ g% I
- ADC_Mode_InjecSimult:注入同步 ; x& `1 m. |# g. c# Z# e9 y, {
' Z: q$ ^+ P; f r. ~- ADC_Mode_RegSimult:规则同步( A5 B1 y) [! ~. j
( I0 x1 \8 g1 m! S: N( C0 v& I- ADC_Mode_FastInterl:快速交替 $ n8 G; ]1 D) H7 |2 k
8 `: E7 _9 [ p; e8 h- ADC_Mode_SlowInterl:慢速交替
+ M+ h7 \4 C7 _7 q7 X6 B8 d. v) p$ t; y - % T9 v0 J2 r" D
- ADC_Mode_AlterTrig:交替触发6 M9 C% m* Z( T
- / J+ V I! N2 y5 L6 A- z4 L
- 通过ADC_InitStructure.ADC_Mode = XX进行赋值
复制代码 ! R7 k3 F) n% `: g j; ^
ADC扫描使能:. e; M; [4 p ~1 ^9 H' e
- ADC_InitStructure.ADC_ScanConvMode = ENABLE;
复制代码 + V" s( N$ U0 e. F- U" V. F
ADC连续 /单次模式选择:$ m& m8 y) @% ^# B9 }; @& y
- ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
复制代码
, u+ ~0 \: \6 L A. J) l' L3 R+ YADC转换控制方式:
9 U3 M! A" r% l( @+ t- ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;//有软件控制转换
复制代码 2 }# s' A: l6 a. O; B; Q$ o
ADC数据对齐方式;- ADC_DataAlign_Right:右对齐 / ADC_DataAlign_Right:左对齐 T% U* Y' o! A% Y) |8 [
- 6 C" {9 G) Z' b1 X
- ADC_InitStructure.ADC_DataAlign =XX
复制代码 2 I$ l2 {# g) @1 F- i% @
ADC转换通道数: - ADC_InitStructure.ADC_NbrOfChannel = X // X=1~16
复制代码 ( c! e7 W4 T6 v( v4 l) |
ADC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) ~* x! g* }6 ]
! R+ y8 P8 d% U' [是否使能ADCx DMA : - ADC_DMACmd(ADCx, ENABLE);
复制代码 2 t: M7 K+ @0 i5 @4 q1 m7 o
使能ADCx:( h. T4 J7 C8 C8 f$ q; b* ` u
6 S/ I$ D4 j5 [+ c8 e3 M* E初始化ADC1校准寄存器:
( I+ G$ ~; a+ B% k% A- ADC_ResetCalibration(ADCx);
复制代码 : D4 r. Z8 h+ T! D
检测ADC1校准寄存器初始化是否完成:" g/ P! V2 {8 A' Z! w
- while(ADC_GetResetCalibrationStatus(ADCx));
复制代码 7 x) ~" k& Q' @1 d
开始校准ADC1: - ADC_StartCalibration(ADCx);
复制代码 , o, S: X F% Z- m% d' o( _
检测是否完成校准:# w1 c0 o$ P$ z: B* ~
- while(ADC_GetCalibrationStatus(ADCx));
复制代码 7 Y7 _: q2 v+ I. t. i7 @
ADC1转换软件启动: - ADC_SoftwareStartConvCmd(ADCx, ENABLE);
复制代码
" ?. V! K4 r* D5 T$ d2 `* H5 g4、DMA相关:
1 i' u- ?4 T3 O+ R, W' T复位通道:
# [2 C$ Q( J6 ?0 X- DMA_DeInit(DMAy_Channelx);//复位DMAy通道x,y=1时,x=1~7;y=2时,x=1~5
复制代码
; q6 w. d) x I H* k6 m定义外设基地址,全局变量:9 n* V4 u# u2 H) S
- DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;//地址自己定义
复制代码 如:#define ADC1_DR_Address ((u32)0x4001244C) S0 N9 b# s( {; h9 X8 g6 {% y
+ `) k1 x& S+ V5 Q9 L
定义DMA存储器地址,全局变量u327 C1 R4 W F" d+ V, M0 V
- 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];$ M8 L2 x4 P; n! l
1 o# o# d# R7 x. Z8 h$ r6 ~3 b& n8 gDMA外设方向:
2 H5 `' S# t% g' E( U) P3 O- 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, i8 o2 c) w) _2 n0 s$ r9 Y5 W; L
1 j! ^! o! D. a' [1 ~DMA传输数量寄存器值,即缓存大小,单位由MemoryDataSize或PeripheralDataSize决定:5 i; i2 C% S: U9 Y2 o5 N
: E$ p& ] T7 uDMA_InitStructure.DMA_BufferSize = x;# D! t0 E; V) b5 t! C* e
* ], p' N/ H& h) q- r3 J
//定义DMA缓冲区大小x,如8通道ADC,则x就为8
) M9 R6 Q8 R8 a2 R- z; g' D
: }$ u5 G, C) k# y- ?2 ], oDMA外设地址寄存器变不变:
, e$ p8 {" \5 _' U- DMA_InitStructure.DMA_PeripheralInc = x;
复制代码 * h* g# [* I6 U) D% \' W
DMA_PeripheralInc_Disable:外设地址寄存器不变 DMA_PeripheralInc_Enable:外设地址寄存器递增
( E: ]9 j& U4 e& ?0 B9 s) G1 a" A8 C# j( i( C1 g, {
DMA内存地址寄存器变不变:, `* v& S N3 ]0 ]
- DMA_InitStructure.DMA_MemoryInc = X;
复制代码 " c5 p4 ~1 P$ f3 W% ?4 F0 K9 L5 {/ A
DMA_MemoryInc_Disable:内存地址寄存器不变 DMA_MemoryInc_Enable:内存地址寄存器递增
! C: ?, B* I) ]" E% e s
" ]2 J/ M) t9 ]* k2 m7 |外设数据宽度:
& i6 B0 [0 u: j4 |- DMA_InitStructure.DMA_PeripheralDataSize = X;
复制代码 9 D4 G1 M2 T# w! @# h2 J
DMA_PeripheralDataSize_Byte 数据宽度为8位 z8 h( p0 L7 p% _ q/ W: i/ d
% u' a/ u8 |; n" @5 Z# T0 V YDMA_PeripheralDataSize_HalfWord 数据宽度为16位
' C$ R' n, o; L1 q$ p; ?+ u! y) Q) U
DMA_PeripheralDataSize_Word 数据宽度为32位" Q2 \5 r2 V* ~! c) L
6 [0 S3 [- x/ `
1 {! }5 ^! O% V1 `% Z
存储器数据宽度:
# H7 y8 c" B7 E8 y- DMA_InitStructure.DMA_MemoryDataSize = X;
复制代码
7 ~$ H. }5 H% o7 i: i BDMA_MemoryDataSize_Byte 数据宽度为8位
* U8 p) w' P, @* ~; F2 d9 J8 [3 Q: n# `2 u# m; f' U
DMA_MemoryDataSize_HalfWord 数据宽度为16位7 i! `) P, J1 |- D# W. q* i+ I
% d- {: |" C* h. v W1 k6 ~3 ]
DMA_MemoryDataSize_Word 数据宽度为32位
' J; d5 {) K' V/ Y+ F0 w9 H8 S# q: ~- d3 d
& e+ T7 g d8 q1 J; `
模式选择:
; D, k$ H0 n% O# M. n% V- DMA_InitStructure.DMA_Mode =x;
复制代码 / K2 `4 P# D# s2 @: \, S3 B' W' d: n' a
DMA_Mode_Circular: 循环模式2 z2 J! H0 L: \3 J! v8 a7 C3 H, d
1 K3 {: b% a8 z# S* W
DMA_Mode_Normal:正常模式! e" D8 S \ D1 f$ w; R7 y' i1 ^, O
& L# W5 b F- h* F
. u+ q' ]7 j" g( Q通道软件优先级设置:9 e8 {6 X9 y$ U
- DMA_InitStructure.DMA_Priority =x;
复制代码 U( o# Y. P7 J) c$ j1 [
DMA_Priority_VeryHigh 最高优先级
0 V- p H7 |5 N/ d( z) s* E9 _2 j- X+ p V
DMA_Priority_High 高优先级
. P8 H: D1 h% c D5 s! D h
% p) k# q/ U5 n* B s. _DMA_Priority_Medium 中优先级
6 q9 g6 S" F# x, b H0 D% ?. B! r. l6 i& a$ P4 Z
DMA_Priority_Low 低优先级
8 X4 f3 U7 ?9 J$ p& E( G5 G& B: y7 r# u' [
/ @! i% N+ F& R/ t
DMA内存到内存的传输使能: - DMA_InitStructure.DMA_M2M = x
复制代码 % v" f1 |: S: _% a' _# i
DMA_M2M_Enable:使能( t% V# w. P' M6 J2 j
) c! V# O f2 O" y: ?1 @DMA_M2M_Disable:未使能3 j. t. y% _$ z( Q+ O* ?2 m4 \3 ^6 _
. J4 f& J; g: H1 b2 d, U" W$ S
7 d! ^4 y- e& F2 K" yDMA初始化函数:5 Q P H5 j- @# } r
- DMA_Init(DMAy_Channelx , &DMA_InitStructure);
复制代码
. d0 H7 T# b# T& w- v* O0 WDMA通道使能函数:: `: Q! x# D/ l" |# Y& |+ P
- 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
. B% I) \3 L. S( }7 N- M/ W
7 F+ {# j6 j" l# y: j
4 }$ s" i: {# V( p8 M# w/ ?5、NVIC相关:
( ~) M @7 L, A7 n优先级组设定:( R! H) j% e1 f1 R
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_x);
4 N6 `: v) v, j; o$ y3 K/ l
v/ x1 z% p; R- NVIC_PriorityGroup_0: 0 bits for pre-emption priority( {5 u& U2 G% I3 `$ g6 r& c. u
% Y8 K1 e: J2 a: _2 k' o- 4 bits for subpriority. Q/ h2 [9 Q S! m
2 j [4 N; i0 T) ?: t2 U. @" b- NVIC_PriorityGroup_1: 1 bits for pre-emption priority
0 o. ^4 O( B4 v3 W0 q5 q( G- Z - 0 U7 T* A( y3 I) Q$ A
- 3 bits for subpriority% z+ m4 M: q" ^% A
- - g" T' y* J5 t" Z) K
- NVIC_PriorityGroup_2: 2 bits for pre-emption priority
T. I6 S7 j$ z5 x- U8 b* `
* I8 F( @; d2 m9 @. u4 g& ~9 J- 2 bits for subpriority
. M4 R0 ^" x! ?& ]4 b
8 d7 _: d4 \, t, Q Z/ i0 M- NVIC_PriorityGroup_3: 3 bits for pre-emption priority; \5 n8 _1 a1 O1 B/ h
- # V5 _! a' L1 w& ^: P
- 1 bits for subpriority
! ^: }- b) E6 u7 {" K' I
3 o( o% z, Q- J& [! B- X# y- NVIC_PriorityGroup_4: 4 bits for pre-emption priority4 F! w3 K* M1 a# u. J
" x) {; W" B3 r5 G5 ^- 0 bits for subpriority
: l1 \6 ~( @* r0 D! H0 Y W! X
复制代码
5 C* n# B8 j' p0 }# D) b+ Q设置中断:
- V# B) `; k/ H6 l0 ?' m5 P- V5 ?5 b0 x. o; g
- NVIC_InitStructure.NVIC_IRQChannel =x;
: m$ n3 x6 p+ o" m5 e$ B+ X* J5 _5 y
; t1 K& }" I7 E# |; S" S( W- ADC1_2_IRQn = 18, /*!< ADC1 and ADC2 global Interrupt*/& q# N2 k0 p; M* P
& r' q4 D" O, M5 j% \- USB_HP_CAN1_TX_IRQn = 19, /*!< USB Device High Priority or CAN1 TX Interrupts */
7 N# U( |5 T" @ w+ K6 D - J- o( _* ^9 l
- USB_LP_CAN1_RX0_IRQn = 20, /*!< USB Device Low Priority or CAN1 RX0 Interrupts */
) v/ i0 B1 n4 t- e8 c. Z
3 ]5 G/ r" I! ~- CAN1_RX1_IRQn = 21, /*!< CAN1 RX1 Interrupt*/
, @" k, b& X% C& w0 F# Y2 b - & e6 l+ P8 O8 z& L4 m% h
- CAN1_SCE_IRQn = 22, /*!<CAN1 SCE Interrupt*/
6 D4 p p' @& G# S0 Y0 r% i% B - 3 F4 N/ ^# m1 P% B7 m# _
- EXTI9_5_IRQn = 23, /*!< External Line[9:5] Interrupts*/
+ `& v/ b( r- P6 q! O; _) F: W
0 M/ @+ K; d0 `9 q4 p) s- TIM1_BRK_IRQn = 24, /*!< TIM1 Break Interrupt*/
* ]/ O2 e0 R9 ?, G. \: _1 `) H( t - % T/ Q1 V1 \, \6 H) q7 Z; ]
- TIM1_UP_IRQn = 25, /*!< TIM1 Update Interrupt*/
/ s& ^4 e. D9 K2 s9 B' {! {/ D
- R8 \# x$ a3 ?% D+ n- TIM1_TRG_COM_IRQn = 26, /*!< TIM1 Trigger and Commutation Interrupt*/4 @9 X( F j" R7 r
5 x0 N. R! y: |' C* T) g- TIM1_CC_IRQn = 27, /*!< TIM1 Capture Compare Interrupt*/7 J. g; O9 L# d1 k# Y# c
- 4 B8 Y- |9 M& ~) k9 ^. d) ^
- TIM2_IRQn = 28, /*!< TIM2 global Interrupt */
9 }/ [4 c. D$ j+ B0 o6 N3 l# v
8 ?3 i& Y; X7 i0 w2 b) H) w, l, G- TIM3_IRQn = 29, /*!< TIM3 global Interrupt */7 ]: z" a2 T( c0 R* m; \+ @( Z5 a
5 t+ X7 g5 G9 R4 M0 W+ b- TIM4_IRQn = 30, /*!< TIM4 global Interrupt*/
2 y1 R& e! `- N: W S; \: t, ` - 2 Q9 U3 t9 J6 ^% S r6 C
- I2C1_EV_IRQn = 31, /*!< I2C1 Event Interrupt*/
4 Y- l$ `$ y4 q- _2 \6 o5 a
" e/ A! f; T, f! i+ x& y- I2C1_ER_IRQn = 32, /*!< I2C1 Error Interrupt*/5 L$ ^* l/ q2 k' Z& |6 b
- & b' `3 C) y# I; U
- I2C2_EV_IRQn = 33, /*!< I2C2 Event Interrupt */2 V% [ ]9 k# \9 b2 a: y7 }2 c& J
- ]4 J J+ o5 m4 K; g$ K& b$ Z& r
- I2C2_ER_IRQn = 34, /*!< I2C2 Error Interrupt */3 \' E* x& e2 s- Q9 x
& Z3 N& @2 u9 u0 w; A: X- SPI1_IRQn = 35, /*!< SPI1 global Interrupt*/
" p% q+ ^: ]# F5 a1 s' z- o0 \$ E6 k - ! H- C5 Y+ z1 U! e4 F4 n. P& H( N
- SPI2_IRQn = 36, /*!< SPI2 global Interrupt*/" p1 V2 M5 w3 J7 y [: f7 [+ a: A9 G
- $ l: j6 q% ]4 B
- USART1_IRQn = 37, /*!< USART1 global Interrupt*/
; a; B* [% R( M( e! R3 k- D% b" T - ! U6 C2 p0 C1 n* H" n9 b8 L
- USART2_IRQn = 38, /*!< USART2 global Interrupt*/
) h( O; K$ A' q/ ?4 N! V0 \# s# Z
; g: T0 X4 y+ S7 K- USART3_IRQn = 39, /*!< USART3 global Interrupt*/
5 A# |8 \9 v. B! N2 Q# v - $ {; p- h2 {7 O m3 j5 n0 A8 p
- EXTI15_10_IRQn = 40, /*!< External Line[15:10] Interrupts*/
7 f2 b. y& `/ t7 t2 s1 ]
# l- k/ P9 @9 m6 f- RTCAlarm_IRQn = 41, /*!< RTC Alarm through EXTI Line Interrupt*/# ]( f$ f' Z4 W) k( s0 O
- 5 p* C6 A) F; J/ }; o5 c
- USBWakeUp_IRQn = 42, /*!< USB Device WakeUp from suspend through EXTI Line Interrupt */
; m2 M6 P# e: U
2 C4 p6 E5 |, i; k8 o3 H5 B+ h- TIM8_BRK_IRQn = 43, /*!< TIM8 Break Interrupt */
/ p1 n2 Q3 C2 H4 k# x - 3 e. `6 L! k8 A$ v
- TIM8_UP_IRQn = 44, /*!< TIM8 Update Interrupt\*/+ g. S2 H. t, U: W: E
- - z- W% G P/ i. ^ ?! B
- TIM8_TRG_COM_IRQn = 45, /*!< TIM8 Trigger and Commutation Interrupt4 @1 H9 a0 R! v. c* @! |
0 m0 r! e' q6 e7 A- TIM8_CC_IRQn = 46, /*!< TIM8 Capture Compare Interrupt*/5 e5 V, A( `6 J
- . ~& ~8 T5 r8 L
- ADC3_IRQn = 47, /*!< ADC3 global Interrupt*/1 L2 q$ l; B9 D5 Q3 _+ ?# P, @
- 4 Y$ Y6 j0 A* D7 x
- FSMC_IRQn = 48, /*!< FSMC global Interrupt */
# r a: K8 f. H; h
+ u0 |7 _0 b- J* L6 e- SDIO_IRQn = 49, /*!< SDIO global Interrupt\*/; c Y& U7 ^7 t& _0 n
- * D* h' M. o% p
- TIM5_IRQn = 50, /*!< TIM5 global Interrupt*/+ t: d6 R9 D& i) a3 k
& ~# G) V. |- f- h/ N- SPI3_IRQn = 51, /*!< SPI3 global Interrupt*/
) S( i3 t( f8 I- K( t
8 _ {9 w1 S: Y, b: \- UART4_IRQn = 52, /*!< UART4 global Interrupt */
- e; L6 d) p/ @! a
8 k. C6 X. `: i0 ?8 E% t5 h" Z7 U- UART5_IRQn = 53, /*!< UART5 global Interrupt */
5 b8 d2 g1 M+ m* y8 ]2 S \( p
3 w- r' @7 a4 d/ r* `- TIM6_IRQn = 54, /*!< TIM6 global Interrupt */* ^$ |$ I7 f; x5 Y
- ; ~6 J" I& i1 M' L
- TIM7_IRQn = 55, /*!< TIM7 global Interrupt */. p# Q/ }+ _/ w F
+ U- Z. n; b( t& D6 T* T4 B* K, c6 m- DMA2_Channel1_IRQn = 56, /*!< DMA2 Channel 1 global Interrupt*/
, B4 ^: ]- m/ U1 }4 ~ - ; |/ a$ Y, q$ v! c6 E h
- DMA2_Channel2_IRQn = 57, /*!< DMA2 Channel 2 global Interrupt */
2 Y" {; Y* h. d' ^ - 0 w' L2 U: P0 ~' c! y" @* x5 K
- DMA2_Channel3_IRQn = 58, /*!< DMA2 Channel 3 global Interrupt*/
& t/ X; v' s* n: n- B" l - + e* _7 N% _4 ]# J: k7 u3 P
- DMA2_Channel4_5_IRQn = 59, /*!< DMA2 Channel 4 and Channel 5 global Interrupt*/+ S% c5 Z; o0 ^% `+ v1 g- ~
复制代码 * u9 r4 M/ m$ f" [, l8 Z: F
设置抢占优先级:
1 v6 h$ _) N5 U0 c! V- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =X; //抢占优先级 X
复制代码 $ \2 d* [( U# J( b7 U. h
设置子优先级为:
, Q" P9 V% r! c. I2 J# `9 ~- NVIC_InitStructure.NVIC_IRQChannelSubPriority =X; //抢占优先级 X
复制代码
& I) @4 k+ f/ ~" {& C使能中断:; Y# X" N8 l1 q& Q( I" L: Z, G% o
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能
复制代码 W6 s# ]" {5 K) ~9 o5 S
NVIC初始化函数:( X2 n/ l- r7 I. H7 h" e
- NVIC_Init(&NVIC_InitStructure);
复制代码 注:在开始时需要定义结构体变量NVIC_InitTypeDef NVIC _InitStructure;
3 Y6 I8 {% h% H. I8 w5 F
5 p9 b( Q+ R' ?! z! i5 \9 t7 u; G- B; B+ C4 a6 V9 ^5 O. ^
8 D3 v, C# \0 q7 M& Q/ H
6、USART相关:. \) ]% ?4 { I' D9 o
USART波特率选择:4 N V8 E' M: n! y1 x5 J9 j4 ~4 Z
- USART_InitStructure.USART_BaudRate =XX; //波特率为XX bps
复制代码 0 H$ |% c9 @+ o- k
数据位位数选择:' G% k& e. p6 N3 A
- USART_InitStructure.USART_WordLength = USART_WordLength_Xb;
复制代码 , t' o+ j# a. i. g
停止位位数选择:$ r, p& u! S* I& Y0 M2 U
- USART_InitStructure.USART_StopBits = USART_StopBits_1; //停止位1位
( M- h' _5 ^5 x5 l" O2 Y" g - 9 W. O0 c3 G& {1 |0 {1 h& A" e/ u
- #define USART_StopBits_1 ((uint16_t)0x0000)" P) O7 p Y; ]% a, d+ U% } T
- " k# n0 f. f! B" {+ N* j6 m# Y
- #define USART_StopBits_0_5 ((uint16_t)0x1000)
5 d$ S5 e2 S* Q ~* w& i: ~: W$ k - ' Y- @$ [$ e. L$ w% \
- #define USART_StopBits_2 ((uint16_t)0x2000)
" `) U4 h% v% K" x/ X - # X0 t6 P+ u3 Y, M
- #define USART_StopBits_1_5 ((uint16_t)0x3000)
9 T2 |% L- O6 J
复制代码 ' E8 r8 e% \- [, ?4 i
有无校验位选择:
; ~. o8 s6 O$ W- USART_InitStructure.USART_Parity = USART_Parity_No; //无校验位, v( N$ C. L% C& h3 d
- 0 n' ~, w+ V4 M2 |1 p# \8 b
- #define USART_Parity_No ((uint16_t)0x0000)9 x e6 ]) f4 q Z
- B+ t' i. b W1 N2 |- #define USART_Parity_Even ((uint16_t)0x0400)
: Y% Y" u. r! j- m6 \+ g4 K
! @ O; m& a2 k% n9 ]/ n2 [- #define USART_Parity_Odd ((uint16_t)0x0600)
复制代码 ' \/ r, U; P! [7 x0 W
有无硬件流控选择:8 i$ q/ q9 B; C( ?% A1 g+ R
- USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;* l( H( I. j9 @" h8 F% h7 b
6 j( P* o: p8 J: i0 R- //无硬件流控9 j- T; I2 Q( ^: B
% B5 F# }" @8 G- #define USART_HardwareFlowControl_None ((uint16_t)0x0000)
; `0 [& i( L h- b# y: N4 g
& C$ R+ D/ u5 R `! C! x- [- #define USART_HardwareFlowControl_RTS ((uint16_t)0x0100)
1 c' H! b8 k& K, o7 T
( n. }4 D3 Z0 |. a4 q- #define USART_HardwareFlowControl_CTS ((uint16_t)0x0200)
) w, |" y. n# x+ c0 j
# Q) L' W2 ^/ l# f- #define USART_HardwareFlowControl_RTS_CTS ((uint16_t)0x0300)
1 s6 P5 g4 S& H% k+ }- t
复制代码
4 c6 U& P- t* _6 q- E" h. H& a; a模式选择:3 @0 S9 ~! j4 K' c/ a* D
3 i8 D/ Z- c# J- USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式* y2 X |! C8 b: k+ }) O
- ) O4 D9 R/ ^# \* s
- #define USART_Mode_Rx ((uint16_t)0x0004)
" U6 Z( J* G4 }. q1 Z - - \/ D/ I/ }" ^0 k" ~
- #define USART_Mode_Tx ((uint16_t)0x0008)
复制代码 ! Z- o' J! a+ u$ m' {
配置串口参数函数:
" U" g/ m' F2 Y2 Y; s9 n- USART_Init(USARTx, &USART_InitStructure); 6 r* B. d8 s( h6 ]
- J* p" {) Z% N6 i3 z
- USARTx 可选:USART1, USART2, USART3, UART4 or UART5
复制代码 注:在开始时需要定义结构体变量USART_InitTypeDef USART_InitStruct;
# T4 d0 Y$ j+ ]# p1 j* C8 d& i, P: g" _; d% c* W: N* M+ y% i
使能接收中断:0 p4 T5 q* U0 T: T7 ?
- USART_ITConfig(USARTx, USART_IT_RXNE, ENABLE);
复制代码 3 W) m/ k2 s! c# {/ b
使能发送缓冲空中断:
$ ^* g }" E: y: |5 S. e# }- USART_ITConfig(USARTx, USART_IT_TXE, ENABLE);
复制代码 4 @3 a: n( \, f- g
使能发送完成中断:
6 |( K! ~3 g' W# r& b- USART_ITConfig(USARTx, USART_IT_TC, ENABLE)
复制代码 ' Z: X+ j0 s6 e" q( s0 ?& P
使能USART:. R: k) r1 [6 z' s z
- USART_Cmd(USARTx, ENABLE);
复制代码 , X. S/ `7 k2 c* {' g
" ?% x$ B2 a |0 y& y
) [" e/ x* N& _, B
3 F& C, F: g) l" e0 q% @ |