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蓝桥杯嵌入式第11届真题(完成) STM32G431
作者：菜鸟追梦旅行 | 2024-03-20 15:35:14
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蓝桥杯嵌入式第11届真题(完成) STM32G431
蓝桥杯嵌入式第11届真题(完成) STM32G431
题目
代码
程序和之前的大同小异，不过多解释
main.c
/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file : main.c * @brief : Main program body ****************************************************************************** * @attention * * <h2><center>© Copyright (c) 2021 STMicroelectronics. * All rights reserved.</center></h2> * * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "adc.h" #include "tim.h" #include "gpio.h" /* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ #include "key.h" #include "led.h" #include "myadc.h" #include "stdbool.h" #include "stdio.h" #include "string.h" /* USER CODE END Includes */ /* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ extern struct Key key[4]; uint8_t view = 1; uint8_t lcdtext[30]; float adcVal; uint8_t model[10] = "AUTO"; uint8_t D1 = 10; uint8_t D2 = 10; uint8_t led; /* 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 */ /* USER CODE END PV */ /* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); /* USER CODE BEGIN PFP */ void key_process(void); void lcd_process(void); void led_process(void); void adc_process(void); /* USER CODE END PFP */ /* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ void lcdclear(void) { LCD_Clear(Black); LCD_SetBackColor(Black); LCD_SetTextColor(White); } /* 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_TIM3_Init(); MX_TIM17_Init(); MX_TIM2_Init(); /* USER CODE BEGIN 2 */ LCD_Init(); HAL_TIM_Base_Start_IT(&htim2); HAL_TIM_PWM_Start(&htim3,TIM_CHANNEL_1); HAL_TIM_PWM_Start(&htim17,TIM_CHANNEL_1); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ lcdclear(); led_display(0x00); while (1) { adc_process(); key_process(); lcd_process(); led_process(); /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ } /** * @brief System Clock Configuration * @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; RCC_PeriphCLKInitTypeDef PeriphClkInit = {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_HSI; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV2; 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(); } /** Initializes the peripherals clocks */ PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC12; PeriphClkInit.Adc12ClockSelection = RCC_ADC12CLKSOURCE_SYSCLK; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) { Error_Handler(); } } /* USER CODE BEGIN 4 */ void key_process(void) { if(key[0].key_single_flag) { lcdclear(); key[0].key_single_flag = 0; if(view==1) { view = 2; }else{ view = 1; } } if(key[1].key_single_flag) { lcdclear(); key[1].key_single_flag = 0; D1 = ((D1 / 10) % 9 + 1) * 10; } if(key[2].key_single_flag) { lcdclear(); key[2].key_single_flag = 0; D2 = ((D2 / 10) % 9 + 1) * 10; } if(key[3].key_single_flag) { lcdclear(); key[3].key_single_flag = 0; if(strcmp((char *)model,"AUTO")==0) { sprintf((char *)model,"MANU"); }else{ sprintf((char *)model,"AUTO"); } } } void lcd_process(void) { switch(view) { case 1://数据显示界面 { sprintf((char *)lcdtext," Data"); LCD_DisplayStringLine(Line0,lcdtext); sprintf((char *)lcdtext," V:%.2fV",adcVal); LCD_DisplayStringLine(Line2,lcdtext); sprintf((char *)lcdtext," Mode:%s",model); LCD_DisplayStringLine(Line4,lcdtext); }break; case 2://参数设置界面 { sprintf((char *)lcdtext," Para"); LCD_DisplayStringLine(Line0,lcdtext); sprintf((char *)lcdtext," PA6:%d %%",D1); LCD_DisplayStringLine(Line2,lcdtext); sprintf((char *)lcdtext," PA7:%d %%",D2); LCD_DisplayStringLine(Line4,lcdtext); }break; } } void led_process(void) { if(strcmp((char *)model,"AUTO")==0) { led|=0x01; }else{ led&=~0x01; } if(view==1) { led|=0x02; }else{ led&=~0x02; } led_display(led); } void adc_process(void) { adcVal = get_Adc_Val(&hadc2); if(strcmp((char *)model,"AUTO")==0) { D1 = adcVal*100 /3.3f; D2 = D1; if(adcVal==0) { D1 = 0; D2 = D1; } else if(adcVal==3.3) { D1 = 100; D2 = D1; } } __HAL_TIM_SET_COMPARE(&htim3,TIM_CHANNEL_1,10000*D1); __HAL_TIM_SET_COMPARE(&htim17,TIM_CHANNEL_1,10000*D2); } /* 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 */ /* 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, tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ /* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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key.c
#include "key.h" struct Key key[4]={0,0,0,0}; void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { if(htim->Instance==TIM2) { key[0].key_gpio = HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_0); key[1].key_gpio = HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1); key[2].key_gpio = HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_2); key[3].key_gpio = HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0); for(int i = 0;i<4;i++) { switch(key[i].key_status) { case 0: { if(key[i].key_gpio==0) { key[i].key_status = 1; } }break; case 1: { if(key[i].key_gpio==0) { key[i].key_single_flag = 1; key[i].key_status = 2; }else{ key[i].key_status = 0; } }break; case 2: { if(key[i].key_gpio==1) { key[i].key_status = 0; } }break; } } } }
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led.c
#include "led.h"
void led_display(uint8_t led)
{
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_All,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOC,led<<8,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET);
}
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myadc.c
#include "myadc.h"
float get_Adc_Val(ADC_HandleTypeDef *hadc)
{
float val;
HAL_ADC_Start(hadc);
val = HAL_ADC_GetValue(hadc);
return val*3.3f/4096;
}
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