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实验5：开放性实验内容：按键B1调节电机转速，按下按键速度递增，速度达到设定的最大值后，再按键速度递减，速度达到设定的最小值后，再按键速度递增。同时通过软件STMStudio软件查看设定的速度变量。1 r: H/ Y9 S7 L3 Z% W# b 8 E! ^' L! g4 E _6 p, o 一、软件程序4 |/ y2 t: i. {4 A9 O 重新设置PC13端口为输入 
程序代码： int main(void)7 A$ v9 u& s8 A8 W9 ]8 o {! ^ Y& W$ {+ [0 [7 F0 Y /* USER CODE BEGIN 1 */ uint16_t speedcnt=0; uint8_t speedup=1;2 R# W+ A6 Z( x uint8_t speeddown=0;" k; c) q' t# O" i: r6 s /* USER CODE END 1 */! k) _. N: \! ~2 c % i, ^1 i. P f: R2 e( L- n /* MCU Configuration----------------------------------------------------------*/ - R+ A( i) F! N) e9 e ; _6 O3 q9 e# k; j3 {: V /* Reset of all peripherals, Initializes the Flash interface and the Systick. */+ Q% I+ D: p4 k% p @ HAL_Init();6 O8 n- G; H6 c ' a1 `+ P7 y9 `) F " u: h. l& [, @ /* USER CODE BEGIN Init */ 5 q) e3 F7 n8 ]3 F7 ]/ s /* USER CODE END Init */ 8 h: Q) S, V- |0 J; |- V5 N+ @; N 1 k& U; V2 n: v. m* I& d /* Configure the system clock */( Q0 i* N3 U. K3 ^) H SystemClock_Config();( m# @, a. M9 [1 F8 g1 o' G % Z2 ~- E1 U5 H4 s+ X /* USER CODE BEGIN SysInit */$ _, R$ L; } B: [$ ~$ m+ e 3 R; [! j# e1 W 9 O( B0 E1 U* L /* USER CODE END SysInit */ - y( f. K1 h2 j# @. a" Q & h' V: R0 L( @# L5 y /* Initialize all configured peripherals */ MX_GPIO_Init();% O% k% K, L# j3 R q! y) n MX_ADC1_Init();" D, o6 b' v3 R: ]# n) @" [5 E MX_DAC_Init();' ^0 s: x8 t% i- y4 t0 ^ MX_TIM1_Init(); MX_USART2_UART_Init(); MX_MotorControl_Init(); 3 o$ d. _2 l% S4 t /* Initialize interrupts */" n/ ~+ J/ {: f MX_NVIC_Init();4 r' z5 b$ I$ J /* USER CODE BEGIN 2 */ 4 ^/ p4 F) v4 ]( y! a MC_StartMotor1();) q4 W4 u5 D; W- f HAL_Delay(1000); MC_ProgramSpeedRampMotor1(2000/6,1000);8 v7 k7 a) \0 e0 l HAL_Delay(10000);$ c; @- s1 W) R" N: I3 {9 a ) ` R4 F% a6 Z. `1 A2 X /* USER CODE END 2 */. h0 @7 ]( n2 b4 a /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1)' Q4 [1 p" W& N; M0 {; k$ ?7 B { if(GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_13))5 A( t6 w Z; `' b, N" l {% Y. G" b( ^1 G' m5 \; d5 b HAL_Delay(10);; w2 }/ [: ?3 t0 G$ d/ Q; L if(GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_13))6 v/ o1 j; I K- }. s { if(speedup==1) { speedcnt=speedcnt+100;) g5 M9 K+ u/ {. @/ g if(speedcnt>14000)9 T- F2 ?# S9 L8 g {) r+ L# H$ v3 D2 Y speedup=0; speeddown=1; }" q/ R: s5 T7 v, K } if(speeddown==1) { speedcnt=speedcnt-100; if(speedcnt<200) {+ C$ i& X( H0 Y0 _ f speedup=1; speeddown=0;+ J7 Y" \+ C9 X3 B8 g' R- a }! L; J7 p) D, u. B( i1 W! s } MC_ProgramSpeedRampMotor1((2000+speedcnt)/6,1000); } }$ B8 _6 W4 G. Z1 R HAL_Delay(100); 2 x; L! e+ P$ G( | /* USER CODE END WHILE */' o9 O6 y% K4 t0 h' D5 J8 n5 @! [ & ?/ N6 U& @$ i6 x5 E5 A; [ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */! f( D8 b/ V' D+ k 4 z" g" F1 I" K( d) G : z" u: L' Q; X8 h } , {$ m4 \% w! K5 L9 v; A+ E 4 z0 r: V* \( X- g6 G 二、执行结果： / [7 G% y+ E/ n" C u; {& t1 U! _8 P 
STMStudio查看变量结果- i$ ]9 W/ s; s" d9 O 
STMStudio在线查看程序运行的是个不错的软件。 / d/ e, {6 u- L; v ?2 i' D7 B$ Y , O' x. ?6 U! C$ ^& `6 P# _. l, ^ ; m; n# i/ @1 _3 t ! a% f( [; s* g& A% E( S j% ?, _ 2 d* j# E) Y: s5 P- s& w2 E 6 ^+ Q1 X1 V5 P. b2 D( L " e5 k: [9 S) v% h+ T : e. t# y# E& X% k3 M. m0 W( b$ ~ & K4 A o, N& m. F( N% J |
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