STM32G431RBTx 模拟液位检测

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STMCU小助手发布时间：2023-3-1 19:09

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文章简介:	STM32G431RBTx 模拟液位检测

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.KEY, 四个按键IO口都要配置，分别是PB0, PB1,PB2,PA0依次是B0,B1,B2,B3不要弄错了
3.LED:开启PC8,PC9,PC10,PD2输出模式就行了。
4.定时器:TIM3(按键消抖定时器)

SC:80-1,ARR:10000-1,TIM4(控制ADC每秒采集)

SC:80-1,ARR:10000-1,TIM6(控制LED闪烁)

SC:80-1,ARR:10000-1
5.ADC

B15作为ADC2IN15通道，开启single-ended模式。
6.EEPROM

B6,PB7输出模式。

三、代码实现
bsp组有:

在这里只展示interrupt.h,interrupt.h,main.c,main.h的代码，其他文件的代码可到基本模块篇获取。
interrupt.h:

#ifndef __INTERRUPT_H__
#define __INTERRUPT_H__
#include "main.h"
#include "stdbool.h"
struct keys
{
bool key_sta;
unsigned char judge_sta;
bool single_flag;
unsigned int key_time;
bool long_flag;
};
#endif

复制代码

interrupt.c:

#include "interrupt.h"
#include "usart.h"
#include "badc.h"
#include "adc.h"
unsigned char RxBuffer[30];
unsigned char BufIndex = 0;
unsigned char Rxdat = 0;
extern unsigned char completeADCflag;
extern unsigned int globalADC;
extern unsigned char ADCTime;
extern unsigned char nowLevel;
extern unsigned char nowHeight;
extern unsigned char LED;
extern unsigned char TimeLD1;
extern unsigned char TimeLD2;
extern unsigned char TimeLD3;
extern unsigned char LD1Type;
extern unsigned char LD2Type;
extern unsigned char LD3Type;
extern unsigned char LevelChangeFlag;
extern unsigned char CheckDataFlag;
unsigned char LD2count;
unsigned char LD3count;
unsigned int adc[4];
struct keys key[4] = {0, 0, 0, 0, 0};
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
if(huart->Instance == USART1)
{
RxBuffer[BufIndex++] = Rxdat;
HAL_UART_Receive_IT(huart, &Rxdat, 1);
}
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
if(htim->Instance == TIM3)
{
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].judge_sta)
{
case 0:
{
if(key[i].key_sta == 0)
{
key[i].judge_sta = 1;
key[i].key_time = 0;
}
break;
}
case 1:
{
if(key[i].key_sta == 0)
{
key[i].judge_sta = 2;
}
else
{
key[i].judge_sta = 0;
}
break;
}
case 2:
{
if(key[i].key_sta == 1)
{
key[i].judge_sta = 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;
}
}
}
}
if(htim->Instance == TIM4)
{
ADCTime++;
if(ADCTime == 25)
{
adc[0] = getADC(&hadc2);
}
else if(ADCTime == 50)
{
adc[1] = getADC(&hadc2);
}
else if(ADCTime == 75)
{
adc[2] = getADC(&hadc2);
}
else if(ADCTime == 100)
{
ADCTime = 0;
adc[3] = getADC(&hadc2);
globalADC = (adc[0] + adc[1] + adc[2] + adc[3]) / 4;
completeADCflag = 1;
nowHeight = (unsigned char)(globalADC / 4096.0 * 100);
}
}
if(htim->Instance == TIM6)
{
if(1)
{
TimeLD1++;
if(TimeLD1 == 100)
{
LD1Type = !LD1Type;
LED = LED & 0xfe | (LD1Type << 0);
TimeLD1 = 0;
}
}
if(LevelChangeFlag == 1)
{
TimeLD2++;
if(TimeLD2 == 20)
{
LD2Type = !LD2Type;
LED = LED & 0xfd | (LD2Type << 1);
TimeLD2 = 0;
LD2count++;
if(LD2count == 10)
{
LD2count = 0;
LevelChangeFlag = 0;
}
}
}
if(CheckDataFlag == 1)
{
TimeLD3++;
if(TimeLD3 == 20)
{
LD3Type = !LD3Type;
LED = LED & 0xfb | (LD3Type << 2);
TimeLD3 = 0;
LD3count++;
if(LD3count == 10)
{
LD3count = 0;
CheckDataFlag = 0;
}
}
}
}
}

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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
*
*
* 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 */
/* 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
/* USER CODE END Private defines */
#ifdef __cplusplus
}
#endif
#endif /* __MAIN_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

复制代码

main.c:

/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
*
* 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 "usart.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "interrupt.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "lcd.h"
#include "i2c.h"
#include "led.h"
#include "badc.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 unsigned char RxBuffer[30];
extern unsigned char BufIndex;
extern unsigned char Rxdat;
extern struct keys key[4];
unsigned int globalADC;
unsigned char ADCTime;
unsigned char completeADCflag;
unsigned char nowLevel;
unsigned char nowHeight;
unsigned char StoreThreshold[3] = {10, 20, 30};
unsigned char displayMode;
unsigned char SettingIndex;
unsigned char tempLevel;
unsigned char LED = 0x00;
unsigned char TimeLD1;
unsigned char TimeLD2;
unsigned char TimeLD3;
unsigned char LD1Type;
unsigned char LD2Type;
unsigned char LD3Type;
unsigned char LevelChangeFlag;
unsigned char CheckDataFlag;
unsigned char InitFlag = 1;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
void Rx_Proc(void);
void DisposeKey(void);
void LCD_Display(void);
void Judge_Level(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_USART1_UART_Init();
MX_ADC2_Init();
MX_TIM3_Init();
MX_TIM4_Init();
MX_TIM6_Init();
/* USER CODE BEGIN 2 */
HAL_UART_Receive_IT(&huart1, &Rxdat, 1);
HAL_TIM_Base_Start_IT(&htim3);
HAL_TIM_Base_Start_IT(&htim4);
HAL_TIM_Base_Start_IT(&htim6);
LCD_Init();
LCD_Clear(Black);
LCD_SetBackColor(Black);
LCD_SetTextColor(White);
StoreThreshold[0] = eeprom_read(0x01);
StoreThreshold[1] = eeprom_read(0x02);
StoreThreshold[2] = eeprom_read(0x03);
globalADC = getADC(&hadc2);
nowHeight = (unsigned char)(globalADC / 4096.0 * 100);
Judge_Level();
tempLevel = nowLevel;
HAL_Delay(1000);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
if(BufIndex != 0)
{
unsigned char temp = BufIndex;
HAL_Delay(1);
if(temp == BufIndex)
{
Rx_Proc();
}
}
DisposeKey();
Judge_Level();
if(tempLevel != nowLevel)
{
if(nowLevel > tempLevel)
{
printf("A:H%d+L%d+U\r\n", nowHeight, nowLevel);
}
else if(nowLevel < tempLevel)
{
printf("A:H%d+L%d+D\r\n", nowHeight, nowLevel);
}
tempLevel = nowLevel;
LevelChangeFlag = 1;
}
if(InitFlag == 0)
{
LED_Display(LED);
LCD_Display();
}
InitFlag = 0;
}
/* 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_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();
}
/** Initializes the peripherals clocks
*/
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1|RCC_PERIPHCLK_ADC12;
PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
PeriphClkInit.Adc12ClockSelection = RCC_ADC12CLKSOURCE_SYSCLK;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
int fputc(int ch, FILE *f)
{
HAL_UART_Transmit(&huart1, (unsigned char *)&ch, 1, HAL_MAX_DELAY);
return ch;
}
void Rx_Proc(void)
{
if(RxBuffer[0] == 'C')
{
printf("C:H%d+L%d\r\n", nowHeight, nowLevel);
CheckDataFlag = 1;
}
if(RxBuffer[0] == 'S')
{
printf("S:TL%d+TM%d+TH%d\r\n", StoreThreshold[0], StoreThreshold[1], StoreThreshold[2]);
CheckDataFlag = 1;
}
BufIndex = 0;
memset(RxBuffer, 0, 30);
}
void DisposeKey(void)
{
if(key[0].single_flag)
{
if(displayMode == DATA)
{
displayMode = PARA;
LCD_Clear(Black);
}
else if(displayMode == PARA)
{
displayMode = DATA;
eeprom_write(0x01, StoreThreshold[0]);
HAL_Delay(1);
eeprom_write(0x02, StoreThreshold[1]);
HAL_Delay(1);
eeprom_write(0x03, StoreThreshold[2]);
HAL_Delay(1);
LCD_Clear(Black);
}
key[0].single_flag = 0;
}
if(key[1].single_flag)
{
if(displayMode == PARA)
{
SettingIndex++;
SettingIndex %= 3;
}
key[1].single_flag = 0;
}
if(key[2].single_flag)
{
if(displayMode == PARA)
{
if(SettingIndex == 2)
{
StoreThreshold[2] += 5;
if(StoreThreshold[2] > 95)
{
StoreThreshold[2] = StoreThreshold[1] + 5;
}
}
if(SettingIndex == 1)
{
StoreThreshold[1] += 5;
if(StoreThreshold[1] >= StoreThreshold[2])
{
StoreThreshold[1] = StoreThreshold[0] + 5;
}
}
if(SettingIndex == 0)
{
StoreThreshold[0] += 5;
if(StoreThreshold[0] >= StoreThreshold[1])
{
StoreThreshold[0] = 5;
}
}
}
key[2].single_flag = 0;
}
if(key[3].single_flag)
{
if(displayMode == PARA)
{
if(SettingIndex == 2)
{
StoreThreshold[2] -= 5;
if(StoreThreshold[2] <= StoreThreshold[1])
{
StoreThreshold[2] = 95;
}
}
if(SettingIndex == 1)
{
StoreThreshold[1] -= 5;
if(StoreThreshold[1] <= StoreThreshold[0])
{
StoreThreshold[1] = StoreThreshold[2] - 5;
}
}
if(SettingIndex == 0)
{
StoreThreshold[0] -= 5;
if(StoreThreshold[0] == 0)
{
StoreThreshold[0] = StoreThreshold[1] - 5;
}
}
}
key[3].single_flag = 0;
}
}
void LCD_Display(void)
{
if(displayMode == DATA)
{
LCD_DisplayStringLine(Line1, " Liquid Level");
char text[30];
sprintf(text, " Height:%2dcm", nowHeight);
LCD_DisplayStringLine(Line3, text);
if(completeADCflag)
{
sprintf(text, " ADC: %.2fV", globalADC * 3.3 / 4096);
LCD_DisplayStringLine(Line5, text);
completeADCflag = 0;
}
sprintf(text, " Level: %d", nowLevel);
LCD_DisplayStringLine(Line7, text);
}
if(displayMode == PARA)
{
LCD_DisplayStringLine(Line1, " Parameter Setup");
char text[30];
if(SettingIndex == 0)
{
LCD_SetTextColor(Green);
}
sprintf(text, "Threshold1: %02dcm", StoreThreshold[0]);
LCD_DisplayStringLine(Line3, text);
LCD_SetTextColor(White);
if(SettingIndex == 1)
{
LCD_SetTextColor(Green);
}
sprintf(text, "Threshold2: %02dcm", StoreThreshold[1]);
LCD_DisplayStringLine(Line5, text);
LCD_SetTextColor(White);
if(SettingIndex == 2)
{
LCD_SetTextColor(Green);
}
sprintf(text, "Threshold3: %02dcm", StoreThreshold[2]);
LCD_DisplayStringLine(Line7, text);
LCD_SetTextColor(White);
}
}
void Judge_Level(void)
{
if(nowHeight <= StoreThreshold[0])
{
nowLevel = 0;
}
else if(nowHeight > StoreThreshold[0] && nowHeight <= StoreThreshold[1])
{
nowLevel = 1;
}
else if(nowHeight > StoreThreshold[1] && nowHeight <= StoreThreshold[2])
{
nowLevel = 2;
}
else if(nowHeight > StoreThreshold[2])
{
nowLevel = 3;
}
}
/* 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 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/