2022 Blue Bridge Cup Embedded Provincial Competition Engineering Code
There are only four files in total, and the other files are not changed, and are generated by CUBEMX configuration.
1.main.c
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2022 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 "tim.h"
#include "usart.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
#include "user.h"
#include "lcd.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 */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
uint8_t Flag_Screen=1;
uint8_t RxBuff[7];
/* 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_TIM2_Init();
/* USER CODE BEGIN 2 */
LCD_Init();
LED_Init();
LCD_Clear(Black);
LCD_SetBackColor(Black);
LCD_SetTextColor(White);
HAL_TIM_PWM_Start(&htim2,TIM_CHANNEL_2);
HAL_UART_Receive_IT(&huart1,RxBuff,sizeof(RxBuff));
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
PSD_Init();
while(Flag_Screen)
{
PSD_SET();
}
STA_Init();
/* 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_NONE;
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_HSI;
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_0) != HAL_OK)
{
Error_Handler();
}
/** Initializes the peripherals clocks
*/
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
int fputc(int ch, FILE* fp)
{
HAL_UART_Transmit(&huart1,(uint8_t*)&ch,1,1000);
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 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
2.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
*
* <h2><center>© Copyright (c) 2022 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 */
/* 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 */
extern uint8_t Flag_Screen;
extern uint8_t RxBuff[7];
/* 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 */
/* USER CODE END Private defines */
#ifdef __cplusplus
}
#endif
#endif /* __MAIN_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
3.user.h (for the convenience of submission, the main codes are here)
#include "user.h"
#include "gpio.h"
#include "lcd.h"
#include "stdio.h"
#include "string.h"
#include "usart.h"
char user_password[3] = {
'1','2','3'};
char password[3]={
'@','@','@'};
char data[20];
uint8_t Error_count = 0;
uint16_t fre = 0;
void LED_Setting(uint16_t LED,uint8_t STATE)
{
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12, GPIO_PIN_SET);
if(STATE == LED_ON)
HAL_GPIO_WritePin(GPIOC,LED,GPIO_PIN_RESET);
else
HAL_GPIO_WritePin(GPIOC,LED,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET);
}
void LED_Init(void)
{
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12, GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET);
}
void PSD_Init(void)
{
LCD_DisplayStringLine(Line1,(unsigned char *)" PSD ");
sprintf(data," B1:%c ",password[0]);
LCD_DisplayStringLine(Line3 ,(unsigned char *)data);
sprintf(data," B2:%c ",password[1]);
LCD_DisplayStringLine(Line4 ,(unsigned char *)data);
sprintf(data," B3:%c ",password[2]);
LCD_DisplayStringLine(Line5 ,(unsigned char *)data);
}
void PSD_Reset(void)
{
memset(password,'@',3);
sprintf(data," B1:%c ",password[0]);
LCD_DisplayStringLine(Line3 ,(unsigned char *)data);
sprintf(data," B2:%c ",password[1]);
LCD_DisplayStringLine(Line4 ,(unsigned char *)data);
sprintf(data," B3:%c ",password[2]);
LCD_DisplayStringLine(Line5 ,(unsigned char *)data);
}
void PSD_SET(void)
{
if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_0)==GPIO_PIN_RESET)
{
while(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_0)==GPIO_PIN_RESET);
if(password[PASSWORD1]=='@'||password[PASSWORD1]=='9')
password[PASSWORD1] = '0';
else
password[PASSWORD1]++;
sprintf(data," B1:%c ",password[PASSWORD1]);
LCD_DisplayStringLine(Line3 ,(unsigned char *)data);
}
if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==GPIO_PIN_RESET)
{
while(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==GPIO_PIN_RESET);
if(password[PASSWORD2]=='@'||password[PASSWORD2]=='9')
password[PASSWORD2] = '0';
else
password[PASSWORD2]++;
sprintf(data," B2:%c ",password[PASSWORD2]);
LCD_DisplayStringLine(Line4 ,(unsigned char *)data);
}
if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_2)==GPIO_PIN_RESET)
{
while(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_2)==GPIO_PIN_RESET);
if(password[PASSWORD3]=='@'||password[PASSWORD3]=='9')
password[PASSWORD3] = '0';
else
password[PASSWORD3]++;
sprintf(data," B3:%c ",password[PASSWORD3]);
LCD_DisplayStringLine(Line5 ,(unsigned char *)data);
}
}
void STA_Init(void)
{
LCD_DisplayStringLine(Line1,(unsigned char *)" STA ");
TIM2->ARR = 500-1;
TIM2->CCR2 = 50-1;
sprintf(data," F:2000Hz ");
LCD_DisplayStringLine(Line3 ,(unsigned char *)data);
sprintf(data," D:10%c ",'%');
LCD_DisplayStringLine(Line4 ,(unsigned char *)data);
LCD_DisplayStringLine(Line5 ,(unsigned char *)" ");
LED_Setting(LED1,LED_ON);
HAL_Delay(5000);
LED_Setting(LED1,LED_OFF);
TIM2->ARR = 1000-1;
TIM2->CCR2 = 500-1;
Flag_Screen = 1;
}
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
if(RxBuff[PASSWORD1]==user_password[PASSWORD1]&&RxBuff[PASSWORD2]==user_password[PASSWORD2]&&RxBuff[PASSWORD3]==user_password[PASSWORD3])
{
user_password[PASSWORD1] = RxBuff[4];
user_password[PASSWORD2] = RxBuff[5];
user_password[PASSWORD3] = RxBuff[6];
}
HAL_UART_Receive_IT(&huart1,RxBuff,sizeof(RxBuff));
}
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
uint8_t i = 0;
while(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0)==GPIO_PIN_RESET);
if(user_password[PASSWORD1]==password[PASSWORD1]&&user_password[PASSWORD2]==password[PASSWORD2]&&user_password[PASSWORD3]==password[PASSWORD3])
{
memset(password,'@',3);
Flag_Screen = 0;
Error_count = 0;
}
else
{
PSD_Reset();
Error_count++;
if(Error_count == 3)
{
Error_count = 0;
for(i=0;i<25;i++)
{
LED_Setting(LED2,LED_ON);
HAL_Delay(100);
LED_Setting(LED2,LED_OFF);
HAL_Delay(100);
}
}
}
}
4.user.h
#ifndef __USER_H__
#define __USER_H__
#include "main.h"
#define LED1 GPIO_PIN_8
#define LED2 GPIO_PIN_9
#define LED3 GPIO_PIN_10
#define LED4 GPIO_PIN_11
#define LED5 GPIO_PIN_12
#define LED6 GPIO_PIN_13
#define LED7 GPIO_PIN_14
#define LED8 GPIO_PIN_15
#define LED_ON 0
#define LED_OFF 1
#define PASSWORD1 0
#define PASSWORD2 1
#define PASSWORD3 2
void LED_Setting(uint16_t LED,uint8_t STATE);
void PSD_SET(void);
void PSD_Init(void);
void STA_SET(void);
void STA_Init(void);
void LED_Init(void);
void PSD_Reset(void);
#endif