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HAL STM32通过multi_button库处理按键事件

news 2025/12/22 3:07:35

HAL STM32通过multi_button库处理按键事件

📍作者：0x1abin的multi_button库:https://github.com/0x1abin/MultiButton

📘MultiButton简介

MultiButton 是一个小巧简单易用的事件驱动型按键驱动模块，可无限量扩展按键，按键事件的回调异步处理方式可以简化你的程序结构，去除冗余的按键处理硬编码，让你的按键业务逻辑更清晰。

🔖 该库驱动代码纯C语言实现，可以移植到任意需要使用的地方。

🔑使用方法

先申请一个按键结构

struct Button button1;

初始化按键对象，绑定按键的GPIO电平读取接口read_button_pin() ，后一个参数设置有效触发电平。

button_init(&button1, read_button_pin, 0, 0);//绑定按键，读取按键引脚状态，有效触发电平、按键ID

注册按键事件

button_attach(&button1, SINGLE_CLICK, Callback_SINGLE_CLICK_Handler);
button_attach(&button1, DOUBLE_CLICK, Callback_DOUBLE_Click_Handler);

…
4. 启动按键

button_start(&button1);

设置一个5ms间隔的定时器循环调用后台处理函数

while(1) {...if(timer_ticks == 5) {timer_ticks = 0;button_ticks();}
}

🛠按键引脚配置

🌿通过STM32CubeMX，将按键引脚配置成上拉，那么有效触发电平就需要设置为0.

📗通过按键事件查询，获取按键状态

🌿在滴答定时器中断函数（SysTick_Handler）中添加button_tick();

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** Copyright (c) 2024 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 "usart.h"
#include "usb_device.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
#include <stdarg.h>
#include "usbd_cdc_if.h"
#include "multi_button.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 */
struct Button btn1;
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void usb_printf(const char *fmt, ...)
{char buf[128];//自定义缓冲区大小va_list args;va_start(args, fmt);vsnprintf(buf, sizeof(buf), fmt, args);va_end(args);CDC_Transmit_FS((uint8_t *)buf, strlen(buf));
}void button_tick(void)
{static uint8_t tickstart = 0;tickstart++;if(tickstart < 5)return;tickstart = 0;button_ticks();
}
//按键状态读取接口  按键输入模式 ReadInputDataBit
uint8_t Read_Button_GPIO(uint8_t button_id)
{// you can share the GPIO read function with multiple Buttonsswitch(button_id) {case 1:return HAL_GPIO_ReadPin(KEY1_GPIO_Port, KEY1_Pin);case 2:return HAL_GPIO_ReadPin(KEY2_GPIO_Port, KEY2_Pin);default:return 0;}
}/* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 */uint32_t TimerUART;static PressEvent btn1_event_val;/* 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_USB_DEVICE_Init();/* USER CODE BEGIN 2 */uint32_t Main_Fosc = HAL_RCC_GetSysClockFreq();printf("Main_Fosc:%dHz \r\n", Main_Fosc);TimerUART = HAL_GetTick();usb_printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);button_init(&btn1, Read_Button_GPIO, 0, 1);button_start(&btn1);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while(1) {/* USER CODE END WHILE *//* USER CODE BEGIN 3 */if((HAL_GetTick() - TimerUART) > 1000) {HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin | LED2_Pin | LED3_Pin); //翻转电平，LED翻转printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);usb_printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);TimerUART = HAL_GetTick();}if(btn1_event_val != get_button_event(&btn1)) {btn1_event_val = get_button_event(&btn1);if(btn1_event_val == PRESS_DOWN) {// printf("STM32F427 KEY1 PRESS_DOWN \r\n");usb_printf("STM32F427 KEY1 PRESS_DOWN \r\n");} else if(btn1_event_val == PRESS_UP) {// printf("STM32F427 KEY1 PRESS_UP \r\n");usb_printf("STM32F427 KEY1 PRESS_UP \r\n");} else if(btn1_event_val == LONG_PRESS_HOLD) {// printf("STM32F427 LONG_PRESS_HOLD\r\n"/);usb_printf("STM32F427 LONG_PRESS_HOLD\r\n");}}}/* 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_RCC_PWR_CLK_ENABLE();__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);/** 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 = 16;RCC_OscInitStruct.PLL.PLLN = 384;RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;RCC_OscInitStruct.PLL.PLLQ = 8;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_DIV4;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) {Error_Handler();}
}/* USER CODE BEGIN 4 *//* 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 */

📓通过注册按键事件，获取按键状态

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** Copyright (c) 2024 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 "usart.h"
#include "usb_device.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
#include <stdarg.h>
#include "usbd_cdc_if.h"
#include "multi_button.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 */
struct Button btn1;
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
void BTN1_PRESS_DOWN_Handler(void* btn);
void BTN1_PRESS_UP_Handler(void* btn);
void BTN1_SINGLE_Click_Handler(void* btn);
void BTN1_DOUBLE_Click_Handler(void* btn);
void BTN1_LONG_RRESS_START_Handler(void* btn);
void BTN1_LONG_PRESS_HOLD_Handler(void* btn);
/* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void usb_printf(const char *fmt, ...)
{char buf[128];//自定义缓冲区大小va_list args;va_start(args, fmt);vsnprintf(buf, sizeof(buf), fmt, args);va_end(args);CDC_Transmit_FS((uint8_t *)buf, strlen(buf));
}void button_tick(void)
{static uint8_t tickstart = 0;tickstart++;if(tickstart < 5)return;tickstart = 0;button_ticks();
}
//按键状态读取接口  按键输入模式 ReadInputDataBit
uint8_t Read_Button_GPIO(uint8_t button_id)
{// you can share the GPIO read function with multiple Buttonsswitch(button_id) {case 1:return HAL_GPIO_ReadPin(KEY1_GPIO_Port, KEY1_Pin);case 2:return HAL_GPIO_ReadPin(KEY2_GPIO_Port, KEY2_Pin);default:return 0;}
}/* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 */uint32_t TimerUART;// static PressEvent btn1_event_val;/* 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_USB_DEVICE_Init();/* USER CODE BEGIN 2 */uint32_t Main_Fosc = HAL_RCC_GetSysClockFreq();printf("Main_Fosc:%dHz \r\n", Main_Fosc);TimerUART = HAL_GetTick();usb_printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);button_init(&btn1, Read_Button_GPIO, 0, 1);// button_attach(&btn1, PRESS_DOWN, BTN1_PRESS_DOWN_Handler); //按下// button_attach(&btn1, PRESS_UP, BTN1_PRESS_UP_Handler);  //按起//	button_attach(&btn1, PRESS_REPEAT,     BTN1_PRESS_REPEAT_Handler);button_attach(&btn1, SINGLE_CLICK, BTN1_SINGLE_Click_Handler); //单击button_attach(&btn1, DOUBLE_CLICK, BTN1_DOUBLE_Click_Handler);  //双击button_attach(&btn1, LONG_PRESS_START, BTN1_LONG_RRESS_START_Handler); //长按开始// button_attach(&btn1, LONG_PRESS_HOLD, BTN1_LONG_PRESS_HOLD_Handler);//一直长按状态button_start(&btn1);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while(1) {/* USER CODE END WHILE *//* USER CODE BEGIN 3 */if((HAL_GetTick() - TimerUART) > 1000) {HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin | LED2_Pin | LED3_Pin); //翻转电平，LED翻转printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);usb_printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);TimerUART = HAL_GetTick();}}/* 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_RCC_PWR_CLK_ENABLE();__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);/** 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 = 16;RCC_OscInitStruct.PLL.PLLN = 384;RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;RCC_OscInitStruct.PLL.PLLQ = 8;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_DIV4;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) {Error_Handler();}
}/* USER CODE BEGIN 4 */
void BTN1_PRESS_DOWN_Handler(void* btn)
{// printf("STM32F427 KEY1 PRESS_DOWN \r\n");usb_printf("STM32F427 KEY1 PRESS_DOWN \r\n");
}void BTN1_PRESS_UP_Handler(void* btn)
{// printf("STM32F427 KEY1 PRESS_UP \r\n");usb_printf("STM32F427 KEY1 PRESS_UP \r\n");
}
void BTN1_SINGLE_Click_Handler(void* btn)
{// printf("STM32F427 KEY1 SINGLE_Click \r\n");usb_printf("STM32F427 KEY1 SINGLE_Click \r\n");
}
void BTN1_DOUBLE_Click_Handler(void* btn)
{// printf("STM32F427 KEY1 DOUBLE_Click \r\n");usb_printf("STM32F427 KEY1 DOUBLE_Click \r\n");
}
void BTN1_LONG_RRESS_START_Handler(void* btn)
{// printf("STM32F427 KEY1 LONG_RRESS_START \r\n");usb_printf("STM32F427 KEY1 LONG_RRESS_START \r\n");
}
void BTN1_LONG_PRESS_HOLD_Handler(void* btn)
{// printf("STM32F427 KEY1 LONG_PRESS_HOLD \r\n");usb_printf("STM32F427 KEY1 LONG_PRESS_HOLD \r\n");
}
/* 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 */

📝通过注册按键事件，统一查询获取按键状态

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** Copyright (c) 2024 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 "usart.h"
#include "usb_device.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
#include <stdarg.h>
#include "usbd_cdc_if.h"
#include "multi_button.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 */
struct Button btn1;
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
//void BTN1_PRESS_DOWN_Handler(void* btn);
//void BTN1_PRESS_UP_Handler(void* btn);
//void BTN1_SINGLE_Click_Handler(void* btn);
//void BTN1_DOUBLE_Click_Handler(void* btn);
//void BTN1_LONG_RRESS_START_Handler(void* btn);
//void BTN1_LONG_PRESS_HOLD_Handler(void* btn);
void button_callback(void *btn);//
/* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void usb_printf(const char *fmt, ...)
{char buf[128];//自定义缓冲区大小va_list args;va_start(args, fmt);vsnprintf(buf, sizeof(buf), fmt, args);va_end(args);CDC_Transmit_FS((uint8_t *)buf, strlen(buf));
}void button_tick(void)
{static uint8_t tickstart = 0;tickstart++;if(tickstart < 5)return;tickstart = 0;button_ticks();
}
//按键状态读取接口  按键输入模式 ReadInputDataBit
uint8_t Read_Button_GPIO(uint8_t button_id)
{// you can share the GPIO read function with multiple Buttonsswitch(button_id) {case 1:return HAL_GPIO_ReadPin(KEY1_GPIO_Port, KEY1_Pin);case 2:return HAL_GPIO_ReadPin(KEY2_GPIO_Port, KEY2_Pin);default:return 0;}
}/* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 */
//    uint32_t TimerUART;// static PressEvent btn1_event_val;/* 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_USB_DEVICE_Init();/* USER CODE BEGIN 2 */uint32_t Main_Fosc = HAL_RCC_GetSysClockFreq();printf("Main_Fosc:%dHz \r\n", Main_Fosc);
//    TimerUART = HAL_GetTick();usb_printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);button_init(&btn1, Read_Button_GPIO, 0, 1);// button_attach(&btn1, PRESS_DOWN, button_callback); //按下// button_attach(&btn1, PRESS_UP, button_callback);  //按起//	button_attach(&btn1, PRESS_REPEAT,button_callback);button_attach(&btn1, SINGLE_CLICK, button_callback); //单击button_attach(&btn1, DOUBLE_CLICK, button_callback);  //双击button_attach(&btn1, LONG_PRESS_START, button_callback); //长按开始// button_attach(&btn1, LONG_PRESS_HOLD, button_callback);//一直长按状态button_start(&btn1);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while(1) {/* USER CODE END WHILE *//* USER CODE BEGIN 3 */
//        if((HAL_GetTick() - TimerUART) > 1000) {
//            HAL_GPIO_TogglePin(LED1_GPIO_Port, LED1_Pin | LED2_Pin | LED3_Pin); //翻转电平，LED翻转
//            printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);
//            usb_printf("STM32F427 SysClockFreq:%d \r\n", Main_Fosc);
//            TimerUART = HAL_GetTick();
//        }/*if(btn1_event_val != get_button_event(&btn1)) {btn1_event_val = get_button_event(&btn1);if(btn1_event_val == PRESS_DOWN) {// printf("STM32F427 KEY1 PRESS_DOWN \r\n");usb_printf("STM32F427 KEY1 PRESS_DOWN \r\n");} else if(btn1_event_val == PRESS_UP) {// printf("STM32F427 KEY1 PRESS_UP \r\n");usb_printf("STM32F427 KEY1 PRESS_UP \r\n");} else if(btn1_event_val == LONG_PRESS_HOLD) {// printf("STM32F427 LONG_PRESS_HOLD\r\n"/);usb_printf("STM32F427 LONG_PRESS_HOLD\r\n");}}*/}/* 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_RCC_PWR_CLK_ENABLE();__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);/** 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 = 16;RCC_OscInitStruct.PLL.PLLN = 384;RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;RCC_OscInitStruct.PLL.PLLQ = 8;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_DIV4;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) {Error_Handler();}
}/* USER CODE BEGIN 4 */
void BTN1_PRESS_DOWN_Handler(void* btn)
{// printf("STM32F427 KEY1 PRESS_DOWN \r\n");usb_printf("STM32F427 KEY1 PRESS_DOWN \r\n");
}void BTN1_PRESS_UP_Handler(void* btn)
{// printf("STM32F427 KEY1 PRESS_UP \r\n");usb_printf("STM32F427 KEY1 PRESS_UP \r\n");
}
void BTN1_SINGLE_Click_Handler(void* btn)
{// printf("STM32F427 KEY1 SINGLE_Click \r\n");usb_printf("STM32F427 KEY1 SINGLE_Click \r\n");
}
void BTN1_DOUBLE_Click_Handler(void* btn)
{// printf("STM32F427 KEY1 DOUBLE_Click \r\n");usb_printf("STM32F427 KEY1 DOUBLE_Click \r\n");
}
void BTN1_LONG_RRESS_START_Handler(void* btn)
{// printf("STM32F427 KEY1 LONG_RRESS_START \r\n");usb_printf("STM32F427 KEY1 LONG_RRESS_START \r\n");
}
void BTN1_LONG_PRESS_HOLD_Handler(void* btn)
{// printf("STM32F427 KEY1 LONG_PRESS_HOLD \r\n");usb_printf("STM32F427 KEY1 LONG_PRESS_HOLD \r\n");
}void button_callback(void *btn)
{
static PressEvent btn1_event_val;
//    uint32_t btn_event_val;    
//    btn_event_val = get_button_event((struct Button *)btn);
//	btn_event_val = get_button_event(&btn1);
if(btn1_event_val != get_button_event(&btn1)) {btn1_event_val = get_button_event(&btn1);switch(btn1_event_val){case PRESS_DOWN:printf("---> KEY1 press down! <---\r\n"); usb_printf("---> KEY1 press down! <---\r\n"); break; case PRESS_UP: printf("***> KEY1 press up! <***\r\n");usb_printf("---> KEY1 press up! <---\r\n");break; case PRESS_REPEAT: printf("---> KEY1 press repeat! <---\r\n");break; case SINGLE_CLICK: printf("---> KEY1 single click! <---\r\n");usb_printf("---> KEY1 single click! <---\r\n");break; case DOUBLE_CLICK: printf("***> KEY1 double click! <***\r\n");usb_printf("---> KEY1 double click! <---\r\n");break; case LONG_PRESS_START: printf("---> KEY1 long press start! <---\r\n");usb_printf("---> KEY1 long press start! <---\r\n");break; case LONG_PRESS_HOLD: printf("***> KEY1 long press hold! <***\r\n");usb_printf("---> KEY1 press down! <---\r\n");break; default:break;}
}
}
/* 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 */

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