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【STM32G431RBTx】备战蓝桥杯嵌入式→决赛试题→第十二届
前言
无
一、题目
二、模块初始化
1.LCD这里不用配置，直接使用提供的资源包就行
2.ADC:开启ADCsingle-ended
3.LED:开启PC8-15,PD2输出模式就行了。
4.定时器:TIM4(按键消抖定时器):PSC:80-1,ARR:10000-1，TIM3(输入捕获定时器):PSC:80,ARR:65535，TIM2(输入捕获定时器):PSC:80,ARR:65535
5.打开串口串行输出输入三、代码实现
bsp组中共有:
interrupt.h:
#ifndef __INTERRUPT_H__ #define __INTERRUPT_H__ #include "main.h" #include "stdbool.h" struct keys { bool key_sta; unsigned char key_judge; bool single_flag; unsigned int key_time; bool long_flag; }; #endif- 1
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interrupt.c:
#include "interrupt.h" #include "tim.h" struct keys key[4] = {0, 0, 0, 0, 0}; void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef * htim) { if(htim->Instance == TIM4) { key[0].key_sta = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_0); key[1].key_sta = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_1); key[2].key_sta = HAL_GPIO_ReadPin(GPIOB, GPIO_PIN_2); key[3].key_sta = HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_0); for(unsigned char i = 0; i < 4; i++) { switch(key[i].key_judge) { case 0: { if(key[i].key_sta == 0) { key[i].key_judge = 1; key[i].key_time = 0; } break; } case 1: { if(key[i].key_sta == 0) { key[i].key_judge = 2; } else { key[i].key_judge = 0; } break; } case 2: { if(key[i].key_sta == 1) { key[i].key_judge = 0; if(key[i].key_time < 80) { key[i].single_flag = 1; } } else { key[i].key_time++; if(key[i].key_time >= 80) { key[i].long_flag = 1; } } break; } } } } } /* Captured Values */ uint32_t uwIC2Value1_T2CH2 = 0; uint32_t uwIC2Value2_T2CH2 = 0; uint32_t uwHighCapture_T2CH2 = 0; uint32_t uwLowCapture_T2CH2 = 0; /* Capture index */ uint16_t uhCaptureIndex_T2CH2 = 0; /* Frequency Value */ uint32_t uwFrequency_T2CH2 = 0; double uwDuty_T2CH2 = 0; /* Captured Values */ uint32_t uwIC2Value1_T3CH2 = 0; uint32_t uwIC2Value2_T3CH2 = 0; uint32_t uwHighCapture_T3CH2 = 0; uint32_t uwLowCapture_T3CH2 = 0; /* Capture index */ uint16_t uhCaptureIndex_T3CH2 = 0; /* Frequency Value */ uint32_t uwFrequency_T3CH2 = 0; double uwDuty_T3CH2 = 0; /* Captured Values */ uint32_t uwIC1Value1_T3CH1 = 0; uint32_t uwIC1Value2_T3CH1 = 0; uint32_t uwHighCapture_T3CH1 = 0; uint32_t uwLowCapture_T3CH1 = 0; /* Capture index */ uint16_t uhCaptureIndex_T3CH1 = 0; /* Frequency Value */ uint32_t uwFrequency_T3CH1 = 0; double uwDuty_T3CH1 = 0; void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim) { if(htim->Instance == TIM2) { if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2) { if(uhCaptureIndex_T2CH2 == 0) { /* Get the 1st Input Capture value */ uwIC2Value1_T2CH2 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_2); __HAL_TIM_SET_CAPTUREPOLARITY(htim, TIM_CHANNEL_2, TIM_INPUTCHANNELPOLARITY_FALLING); uhCaptureIndex_T2CH2 = 1; } else if(uhCaptureIndex_T2CH2 == 1) { /* Get the 2nd Input Capture value */ uwIC2Value2_T2CH2 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_2); __HAL_TIM_SET_CAPTUREPOLARITY(htim, TIM_CHANNEL_2, TIM_INPUTCHANNELPOLARITY_RISING); /* Capture computation */ if (uwIC2Value2_T2CH2 > uwIC2Value1_T2CH2) { uwHighCapture_T2CH2 = (uwIC2Value2_T2CH2 - uwIC2Value1_T2CH2); } else if (uwIC2Value2_T2CH2 < uwIC2Value1_T2CH2) { /* 0xFFFF is max TIM1_CCRx value */ uwHighCapture_T2CH2 = ((0xFFFFFFFF - uwIC2Value1_T2CH2) + uwIC2Value2_T2CH2) + 1; } else { /* If capture values are equal, we have reached the limit of frequency measures */ Error_Handler(); } uwIC2Value1_T2CH2 = uwIC2Value2_T2CH2; uhCaptureIndex_T2CH2 = 2; /* Frequency computation: for this example TIMx (TIM1) is clocked by APB2Clk */ } else if(uhCaptureIndex_T2CH2 == 2) { uwIC2Value2_T2CH2 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_2); if (uwIC2Value2_T2CH2 > uwIC2Value1_T2CH2) { uwLowCapture_T2CH2 = (uwIC2Value2_T2CH2 - uwIC2Value1_T2CH2); } else if (uwIC2Value2_T2CH2 < uwIC2Value1_T2CH2) { /* 0xFFFF is max TIM1_CCRx value */ uwLowCapture_T2CH2 = ((0xFFFFFFFF - uwIC2Value1_T2CH2) + uwIC2Value2_T2CH2) + 1; } uwFrequency_T2CH2 = 1000000 / (uwLowCapture_T2CH2 + uwHighCapture_T2CH2); uwDuty_T2CH2 = uwHighCapture_T2CH2 * 100.0 / (uwLowCapture_T2CH2 + uwHighCapture_T2CH2); uhCaptureIndex_T2CH2 = 0; } } } if(htim->Instance == TIM3) { if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2) { if(uhCaptureIndex_T3CH2 == 0) { /* Get the 1st Input Capture value */ uwIC2Value1_T3CH2 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_2); __HAL_TIM_SET_CAPTUREPOLARITY(htim, TIM_CHANNEL_2, TIM_INPUTCHANNELPOLARITY_FALLING); uhCaptureIndex_T3CH2 = 1; } else if(uhCaptureIndex_T3CH2 == 1) { /* Get the 2nd Input Capture value */ uwIC2Value2_T3CH2 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_2); __HAL_TIM_SET_CAPTUREPOLARITY(htim, TIM_CHANNEL_2, TIM_INPUTCHANNELPOLARITY_RISING); /* Capture computation */ if (uwIC2Value2_T3CH2 > uwIC2Value1_T3CH2) { uwHighCapture_T3CH2 = (uwIC2Value2_T3CH2 - uwIC2Value1_T3CH2); } else if (uwIC2Value2_T3CH2 < uwIC2Value1_T3CH2) { /* 0xFFFF is max TIM1_CCRx value */ uwHighCapture_T3CH2 = ((0xFFFF - uwIC2Value1_T3CH2) + uwIC2Value2_T3CH2) + 1; } else { /* If capture values are equal, we have reached the limit of frequency measures */ Error_Handler(); } uwIC2Value1_T3CH2 = uwIC2Value2_T3CH2; uhCaptureIndex_T3CH2 = 2; /* Frequency computation: for this example TIMx (TIM1) is clocked by APB2Clk */ } else if(uhCaptureIndex_T3CH2 == 2) { uwIC2Value2_T3CH2 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_2); if (uwIC2Value2_T3CH2 > uwIC2Value1_T3CH2) { uwLowCapture_T3CH2 = (uwIC2Value2_T3CH2 - uwIC2Value1_T3CH2); } else if (uwIC2Value2_T3CH2 < uwIC2Value1_T3CH2) { /* 0xFFFF is max TIM1_CCRx value */ uwLowCapture_T3CH2 = ((0xFFFF - uwIC2Value1_T3CH2) + uwIC2Value2_T3CH2) + 1; } uwFrequency_T3CH2 = 1000000 / (uwLowCapture_T3CH2 + uwHighCapture_T3CH2); uwDuty_T3CH2 = uwHighCapture_T3CH2 * 100.0 / (uwLowCapture_T3CH2 + uwHighCapture_T3CH2); uhCaptureIndex_T3CH2 = 0; HAL_TIM_IC_Stop_IT(&htim3, TIM_CHANNEL_2); HAL_TIM_IC_Start_IT(&htim3, TIM_CHANNEL_1); } } else if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_1) { if(uhCaptureIndex_T3CH1 == 0) { /* Get the 1st Input Capture value */ uwIC1Value1_T3CH1 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_1); __HAL_TIM_SET_CAPTUREPOLARITY(htim, TIM_CHANNEL_1, TIM_INPUTCHANNELPOLARITY_FALLING); uhCaptureIndex_T3CH1 = 1; } else if(uhCaptureIndex_T3CH1 == 1) { /* Get the 2nd Input Capture value */ uwIC1Value2_T3CH1 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_1); __HAL_TIM_SET_CAPTUREPOLARITY(htim, TIM_CHANNEL_1, TIM_INPUTCHANNELPOLARITY_RISING); /* Capture computation */ if (uwIC1Value2_T3CH1 > uwIC1Value1_T3CH1) { uwHighCapture_T3CH1 = (uwIC1Value2_T3CH1 - uwIC1Value1_T3CH1); } else if (uwIC1Value2_T3CH1 < uwIC1Value1_T3CH1) { /* 0xFFFF is max TIM1_CCRx value */ uwHighCapture_T3CH1 = ((0xFFFF - uwIC1Value1_T3CH1) + uwIC1Value2_T3CH1) + 1; } else { /* If capture values are equal, we have reached the limit of frequency measures */ Error_Handler(); } uwIC1Value1_T3CH1 = uwIC1Value2_T3CH1; uhCaptureIndex_T3CH1 = 2; /* Frequency computation: for this example TIMx (TIM1) is clocked by APB2Clk */ } else if(uhCaptureIndex_T3CH1 == 2) { uwIC1Value2_T3CH1 = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_1); if (uwIC1Value2_T3CH1 > uwIC1Value1_T3CH1) { uwLowCapture_T3CH1 = (uwIC1Value2_T3CH1 - uwIC1Value1_T3CH1); } else if (uwIC1Value2_T3CH1 < uwIC1Value1_T3CH1) { /* 0xFFFF is max TIM1_CCRx value */ uwLowCapture_T3CH1 = ((0xFFFF - uwIC1Value1_T3CH1) + uwIC1Value2_T3CH1) + 1; } uwFrequency_T3CH1 = 1000000 / (uwLowCapture_T3CH1 + uwHighCapture_T3CH1); uwDuty_T3CH1 = uwHighCapture_T3CH1 * 100.0 / (uwLowCapture_T3CH1 + uwHighCapture_T3CH1); uhCaptureIndex_T3CH1 = 0; HAL_TIM_IC_Stop_IT(&htim3, TIM_CHANNEL_1); HAL_TIM_IC_Start_IT(&htim3, TIM_CHANNEL_2); } } } } char RxBuffer[30]; unsigned char BufIndex = 0; unsigned char Rxdat; void HAL_UART_RxCpltCallback(UART_HandleTypeDef * huart) { if(huart->Instance == USART1) { RxBuffer[BufIndex++] = Rxdat; HAL_UART_Receive_IT(huart, &Rxdat, 1); } }- 1
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main.h:
/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.h * @brief : Header for main.c file. * This file contains the common defines of the application. ****************************************************************************** * @attention * * Copyright (c) 2023 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* USER CODE END Header */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __MAIN_H #define __MAIN_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32g4xx_hal.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ /* USER CODE END Includes */ /* Exported types ------------------------------------------------------------*/ /* USER CODE BEGIN ET */ /* USER CODE END ET */ /* Exported constants --------------------------------------------------------*/ /* USER CODE BEGIN EC */ /* USER CODE END EC */ /* Exported macro ------------------------------------------------------------*/ /* USER CODE BEGIN EM */ /* USER CODE END EM */ /* Exported functions prototypes ---------------------------------------------*/ void Error_Handler(void); /* USER CODE BEGIN EFP */ /* USER CODE END EFP */ /* Private defines -----------------------------------------------------------*/ /* USER CODE BEGIN Private defines */ #define DATA 0 #define PARA 1 #define MODEA 0 #define MODEB 1 #define CHANNELA 0 #define CHANNELB 1 #define LIGHT 0 #define DARK 1 /* USER CODE END Private defines */ #ifdef __cplusplus } #endif #endif /* __MAIN_H */- 1
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main.c:
/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * Copyright (c) 2023 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "adc.h" #include "tim.h" #include "usart.h" #include "gpio.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ #include "interrupt.h" #include "stdio.h" #include "lcd.h" #include "dadc.h" #include "ldr.h" #include "led.h" #include "math.h" #include "stdlib.h" #include "string.h" /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ /* USER CODE END PTD */ /* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD */ /* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ /* USER CODE BEGIN PV */ extern uint32_t uwFrequency_T2CH2; extern double uwDuty_T2CH2; extern uint32_t uwFrequency_T3CH2; extern double uwDuty_T3CH2; extern uint32_t uwFrequency_T3CH1; extern double uwDuty_T3CH1; char text[30]; extern struct keys key[4]; double a; double b; double aTemp[5] = {0}; double bTemp[5] = {0}; unsigned char TrigMode; unsigned char Duty_should_convert; unsigned char DisplayMode; unsigned int Pax = 20; unsigned int Pbx = 20; unsigned int Pf = 1000;//a - b > 80 unsigned char LDRType[2]; // 0ÊÇ×îРunsigned char LED; extern char RxBuffer[30]; extern unsigned char BufIndex; extern unsigned char Rxdat; /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); /* USER CODE BEGIN PFP */ void DisposeKey(void); double Duty2Angle(double Duty, unsigned char channel); void LCD_Disp(void); void JudgeLDRTypeChange(void); void LED_Control(void); void Rx_Proc(void); /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ /* USER CODE END 0 */ /** * @brief The application entry point. * @retval int */ int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_ADC2_Init(); MX_TIM2_Init(); MX_TIM3_Init(); MX_TIM4_Init(); MX_USART1_UART_Init(); /* USER CODE BEGIN 2 */ // HAL_TIM_IC_Start_IT(&htim3, TIM_CHANNEL_1); HAL_TIM_IC_Start_IT(&htim3, TIM_CHANNEL_2); HAL_TIM_IC_Start_IT(&htim2, TIM_CHANNEL_2); getDualADC(&hadc2); HAL_Delay(2); getDualADC(&hadc2); LDR_ReadAODO();//´óÓÚ3000Ëã°µ if(trao > 3000) LDRType[1] = DARK; else LDRType[1] = LIGHT; getDualADC(&hadc2); LDR_ReadAODO();//´óÓÚ3000Ëã°µ if(trao > 3000) LDRType[0] = DARK; else LDRType[0] = LIGHT; HAL_TIM_Base_Start_IT(&htim4); LCD_Init(); LCD_Clear(Black); LCD_SetBackColor(Black); LCD_SetTextColor(White); HAL_UART_Receive_IT(&huart1, &Rxdat, 1); LED_Disp(0x00); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ getDualADC(&hadc2); LDR_ReadAODO();//´óÓÚ3000Ëã°µ if(TrigMode == MODEB) JudgeLDRTypeChange(); // sprintf(text, "T2CH2F:%05d D:%.2f%%", uwFrequency_T2CH2, uwDuty_T2CH2); // LCD_DisplayStringLine(Line0, text); // sprintf(text, "T3CH1F:%05d D:%.2f%%", uwFrequency_T3CH1, uwDuty_T3CH1); // LCD_DisplayStringLine(Line1, text); // sprintf(text, "T3CH2F:%05d D:%.2f%%", uwFrequency_T3CH2, uwDuty_T3CH2); // LCD_DisplayStringLine(Line2, text); // sprintf(text, "trao:%04d", trao); // LCD_DisplayStringLine(Line3, text); if(Duty_should_convert) { Duty_should_convert = 0; aTemp[4] = aTemp[3]; aTemp[3] = aTemp[2]; aTemp[2] = aTemp[1]; aTemp[1] = aTemp[0]; aTemp[0] = Duty2Angle(uwDuty_T3CH1, CHANNELA); bTemp[4] = bTemp[3]; bTemp[3] = bTemp[2]; bTemp[2] = bTemp[1]; bTemp[1] = bTemp[0]; bTemp[0] = Duty2Angle(uwDuty_T3CH2, CHANNELB); } if(BufIndex != 0) { unsigned char Temp = BufIndex; HAL_Delay(1); if(Temp == BufIndex) { Rx_Proc(); } } DisposeKey(); LCD_Disp(); LED_Control(); LED_Disp(LED); } /* USER CODE END 3 */ } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /** Configure the main internal regulator output voltage */ HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1); /** Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV3; RCC_OscInitStruct.PLL.PLLN = 20; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2; RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB buses clocks */ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { Error_Handler(); } } /* USER CODE BEGIN 4 */ void DisposeKey(void) { if(key[0].single_flag) { LCD_Clear(Black); DisplayMode = !DisplayMode; key[0].single_flag = 0; } if(key[1].single_flag) { if(DisplayMode == PARA) { Pax += 10; Pbx += 10; if(Pax == 70) Pax = 10; if(Pbx == 70) Pbx = 10; } key[1].single_flag = 0; } if(key[2].single_flag) { if(DisplayMode == PARA) { Pf += 1000; if(Pf == 11000) Pf = 1000; } if(DisplayMode == DATA) { TrigMode = !TrigMode; } key[2].single_flag = 0; } if(key[3].single_flag) { if(TrigMode == MODEA) { Duty_should_convert = 1; } key[3].single_flag = 0; } } void LCD_Disp(void) { if(DisplayMode == DATA) { LCD_DisplayStringLine(Line1, " DATA"); sprintf(text, " a:%.1f", aTemp[0]); LCD_DisplayStringLine(Line2, text); sprintf(text, " b:%.1f", bTemp[0]); LCD_DisplayStringLine(Line3, text); sprintf(text, " f:%dHz ", uwFrequency_T2CH2); LCD_DisplayStringLine(Line4, text); // sprintf(text, "aDuty%.2f", uwDuty_T3CH1); // LCD_DisplayStringLine(Line5, text); sprintf(text, " ax:%d ", (unsigned int)(fabs(aTemp[1] - aTemp[0]))); LCD_DisplayStringLine(Line6, text); sprintf(text, " bx:%d ", (unsigned int)(fabs(bTemp[1] - bTemp[0]))); LCD_DisplayStringLine(Line7, text); sprintf(text, " mode:%c", 'A' + TrigMode); LCD_DisplayStringLine(Line8, text); } if(DisplayMode == PARA) { LCD_DisplayStringLine(Line1, " PARA"); sprintf(text, " Pax:%d ", Pax); LCD_DisplayStringLine(Line2, text); sprintf(text, " Pbx:%d ", Pbx); LCD_DisplayStringLine(Line3, text); sprintf(text, " Pf:%d ", Pf); LCD_DisplayStringLine(Line4, text); } } void Rx_Proc(void) { if(BufIndex == 2) { if(RxBuffer[0] == 'a' && RxBuffer[1] == '?') { printf("a:%.1f\r\n", aTemp[0]); } else if(RxBuffer[0] == 'b' && RxBuffer[1] == '?') { printf("b:%.1f\r\n", bTemp[0]); } else printf("error\r\n"); } else if(BufIndex == 3) { if(RxBuffer[0] == 'a' && RxBuffer[1] == 'a' && RxBuffer[2] == '?') { printf("aa:%.1f-%.1f-%.1f-%.1f-%.1f\r\n", aTemp[4], aTemp[3], aTemp[2], aTemp[1], aTemp[0]); } else if(RxBuffer[0] == 'b' && RxBuffer[1] == 'b' && RxBuffer[2] == '?') { printf("bb:%.1f-%.1f-%.1f-%.1f-%.1f\r\n", bTemp[4], bTemp[3], bTemp[2], bTemp[1], bTemp[0]); } else if(RxBuffer[0] == 'q' && RxBuffer[1] == 'a' && RxBuffer[2] == '?') { double temp[5]; double _, __; temp[0] = aTemp[0]; temp[1] = aTemp[1]; temp[2] = aTemp[2]; temp[3] = aTemp[3]; temp[4] = aTemp[4]; // temp[0] = 4; // temp[1] = 7; // temp[2] = 10; // temp[3] = 5; // temp[4] = 8; for(unsigned char i = 0; i < 5; i++) { for(unsigned char j = i+1; j < 5; j++) { if(temp[i] >= temp[j]) { _ = temp[i]; __ = temp[j]; temp[i] = __; temp[j] = _; } } } printf("qa:%.1f-%.1f-%.1f-%.1f-%.1f\r\n", temp[0], temp[1], temp[2], temp[3], temp[4]); } else if(RxBuffer[0] == 'q' && RxBuffer[1] == 'b' && RxBuffer[2] == '?') { double temp[5]; double _, __; temp[0] = bTemp[0]; temp[1] = bTemp[1]; temp[2] = bTemp[2]; temp[3] = bTemp[3]; temp[4] = bTemp[4]; // temp[0] = 4; // temp[1] = 7; // temp[2] = 10; // temp[3] = 5; // temp[4] = 8; for(unsigned char i = 0; i < 5; i++) { for(unsigned char j = i+1; j < 5; j++) { if(temp[i] >= temp[j]) { _ = temp[i]; __ = temp[j]; temp[i] = __; temp[j] = _; } } } printf("qb:%.1f-%.1f-%.1f-%.1f-%.1f\r\n", temp[0], temp[1], temp[2], temp[3], temp[4]); } else printf("error\r\n"); } else printf("error\r\n"); memset(RxBuffer, 0, 30); BufIndex = 0; } double Duty2Angle(double Duty, unsigned char channel) { if(channel == CHANNELA) { if(Duty < 10.0) { return 0; } else if(Duty >= 10.0 && Duty <= 90.0) //(10, 0),(90, 180) k = (180.0 / 80.0) y1 = k * x1 + b ->b = y1 - k * x1 = 0 - (180.0 / 80.0) * 10 = -180.0 / 8.0 { return ((180.0 / 80.0) * Duty - 180.0 / 8.0); } else if(Duty > 90.0) { return 180.0; } else return (-1); } else if(channel == CHANNELB) { if(Duty < 10.0) { return 0; } else if(Duty >= 10.0 && Duty <= 90.0) //(10, 0),(90, 90) k = (90.0 / 80.0) b = - 90.0 / 8.0 { return ((90.0 / 80.0) * Duty - 90.0 / 8.0); } else if(Duty > 90.0) { return 90.0; } else return (-1); } else return (-1); } void JudgeLDRTypeChange(void) { if(trao > 3000) { LDRType[1] = LDRType[0]; LDRType[0] = DARK; if(LDRType[1] == LIGHT) Duty_should_convert = 1; } else { LDRType[1] = LDRType[0]; LDRType[0] = LIGHT; } } void LED_Control(void) { if((unsigned int)(fabs(aTemp[0] - aTemp[1])) > Pax) { LED = LED & 0xfe | 0x01; } else { LED = LED & 0xfe; } if((unsigned int)(fabs(bTemp[0] - bTemp[1])) > Pbx) { LED = LED & 0xfd | 0x02; } else { LED = LED & 0xfd; } if(uwFrequency_T2CH2 > Pf) { LED = LED & 0xfb | 0x04; } else { LED = LED & 0xfb; } if(TrigMode == MODEA) { LED = LED & 0xf7 | 0x08; } else { LED = LED & 0xf7; } if(aTemp[0] - bTemp[0] > 80.0 && aTemp[0] - bTemp[0] < 100.0) { LED = LED & 0xef | 0x10; } else { LED = LED & 0xef; } } int fputc(int ch, FILE *f) { HAL_UART_Transmit(&huart1, (unsigned char *)&ch, 1, HAL_MAX_DELAY); return ch; } /* USER CODE END 4 */ /** * @brief This function is executed in case of error occurrence. * @retval None */ void Error_Handler(void) { /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */ __disable_irq(); while (1) { } /* USER CODE END Error_Handler_Debug */ } #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t *file, uint32_t line) { /* USER CODE BEGIN 6 */ /* User can add his own implementation to report the file name and line number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */- 1
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四、完成效果
蓝桥杯嵌入式第十二届国赛试题实现效果
五、总结
本篇文章只是为了存放我的代码，所以看不懂很正常，如果需要代码可以找我私信。
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- 原文地址：https://blog.csdn.net/qq_66792436/article/details/130795769