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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。- @6 f9 r+ ~0 l! ?( {, Z ( x/ Q. R: P" B8 F2 j 8 G8 [. y; z7 h! S6 t @. K6 h 一、软件程序. _' X" I3 F. z& `# S6 ? 重新设置PC13端口为输入2 {% h* a Q) M9 X4 ~3 R 
程序代码： int main(void)7 f2 [9 |3 E# m# z# o' }1 N {0 _( z, W- e/ n. j! K7 } /* USER CODE BEGIN 1 */ uint16_t speedcnt=0;+ m& b, [3 d- K; }7 C uint8_t speedup=1; uint8_t speeddown=0;, Q# G, P7 a' q9 E. e- Z6 D9 B /* USER CODE END 1 */$ E5 f1 ~ Z0 g5 z" _6 a6 ` 1 ]% ~" H; x* U# v0 l /* MCU Configuration----------------------------------------------------------*/; n+ h7 n$ k% R0 j- o+ v 0 _9 M" @7 y M. n' ~. \; p9 X: G2 Z l * s/ h! J6 s7 V$ w /* Reset of all peripherals, Initializes the Flash interface and the Systick. */# n9 I" R2 ?# {5 G+ P, W% Y, F0 _: \ HAL_Init();# d/ y* Z% T1 _' a5 C/ c: G7 ~ /* USER CODE BEGIN Init */% E# U; t% e3 E4 o0 A & F- y2 v9 L; K /* USER CODE END Init */1 a, @4 p; Q) M: q2 ]3 r ' B9 ]0 R1 @* x6 {7 n2 ~ /* Configure the system clock */ SystemClock_Config(); ) g: Z+ V! t Y: H 9 y! g7 n, C' A! ?+ f /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ # E7 k H0 ] ^/ q /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_ADC1_Init(); MX_DAC_Init();/ } w- [0 ` |+ z MX_TIM1_Init();9 W! v7 _4 u6 G7 p) _ MX_USART2_UART_Init();* t+ d) K$ t- |5 t3 R MX_MotorControl_Init();) U5 u$ Y6 {+ r + w: ~. [9 [) ^/ ~! ^0 q9 u# @ /* Initialize interrupts */ MX_NVIC_Init();6 x2 m3 W1 y( I3 m/ s3 N7 k' H /* USER CODE BEGIN 2 */& k2 Q; M9 v- ?! w ; W. P; O& y+ O: `- ]5 y+ u$ r$ e, L MC_StartMotor1(); HAL_Delay(1000);" b9 u5 F0 Y, O MC_ProgramSpeedRampMotor1(2000/6,1000); HAL_Delay(10000);- O$ ^3 j2 k# k 3 E1 K- {1 x! S. p6 d/ K /* USER CODE END 2 */3 A& T N3 K/ U% n4 }, e: v : y) i. `( L P7 n& I /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1)- Z0 H& w) t/ X' `' u7 l# h {0 I4 R4 I2 D% W+ `6 H" ?; F if(GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_13)) {# Z i8 q! F2 } HAL_Delay(10); if(GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC,GPIO_PIN_13))8 x; {+ L8 ~3 C$ i) u8 r) |6 b% Y {; T: V( C( I, Q' W1 ]( y4 g. O if(speedup==1)3 j2 _9 r2 Z# A5 J O1 [1 U4 | {' E1 O/ w7 E; g- |! Z speedcnt=speedcnt+100; if(speedcnt>14000)/ w3 ?( N' ^6 X3 j {+ x& B7 ^0 @3 k+ m8 V speedup=0;: s( e {: Q( P9 F. ?1 o) L; @; v speeddown=1; } }3 m: H0 r, y7 C6 `2 k; r. ~5 }- ~6 K if(speeddown==1), W" {! f. w' l% b8 a; k* z { speedcnt=speedcnt-100;/ c$ \" L; P# M* J, g if(speedcnt<200) { speedup=1; speeddown=0;* F$ E+ ~: |3 Z4 O7 Q. s( r' m } }+ R. z2 n& B+ P! @& n MC_ProgramSpeedRampMotor1((2000+speedcnt)/6,1000);5 i1 s3 Q# h7 I9 b } } HAL_Delay(100);# M9 y% u. w% h$ d 4 ?. J X! B- _5 p i4 v /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ }. _. C& Q! I5 O: v7 v /* USER CODE END 3 */ 5 k. I9 _& A. V1 K$ z* H }) o. b* C% z- w- g' w # e0 t$ {. x H: q 二、执行结果： / l) Q! y8 {+ Y; C# b% j( | 
STMStudio查看变量结果3 b. E/ W$ @+ D; }7 M- u7 b% ] 
STMStudio在线查看程序运行的是个不错的软件。 - y# J' |+ l! r, {; z3 \: X + S; J' N5 z8 ]( p; r ! K- Z' b: `4 ] - n6 S, ]6 o( y, { ? 7 t$ V" U+ ]6 h4 _6 o2 n - h' S/ u3 O7 S/ H- K: h 2 M! i9 L3 ^+ B8 B& w, H a 0 {4 U8 y+ s/ |3 E+ ^* G G; H : ~* L( V$ L5 X; Q+ j |
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