/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2025 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 "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* 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 */
static void EnterStandbyMode(void);
static void SetAllLeds(GPIO_PinState state);
static void EnableAllPeripheralClocks(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();
/* USER CODE BEGIN 2 */
/*
* 打开所有可用外设时钟，让普通工作模式的功耗尽可能大
* 这里的功耗大不了多少，只有当实际配置并让这些外设工作电流才会尽可能的大
*/
EnableAllPeripheralClocks();
/* 判断当前是否是从 Standby 模式唤醒 */
uint8_t woke_from_standby = (__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET);
/* 处理唤醒后的流程 */
if (woke_from_standby)
{
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
SetAllLeds(GPIO_PIN_RESET); //打开LED
}
else
{
SetAllLeds(GPIO_PIN_SET); //关闭LED
}
/* 延迟 3 秒后再进入 Standby，方便观察与退出 */
HAL_Delay(3000);
EnterStandbyMode();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* 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};
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
/** 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 = 4;
RCC_OscInitStruct.PLL.PLLN = 84;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
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_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
static void EnterStandbyMode(void)
{
/* 进入 Standby 前先清除旧的唤醒标志并重新使能 PA0 为唤醒源 */
HAL_PWR_DisableWakeUpPin(PWR_WAKEUP_PIN1);
__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);
HAL_PWR_EnableWakeUpPin(PWR_WAKEUP_PIN1);
HAL_PWR_EnterSTANDBYMode();
}
static void SetAllLeds(GPIO_PinState state)
{
/* 同步控制三色 LED，便于统一显示状态 */
HAL_GPIO_WritePin(LED_B_GPIO_Port, LED_B_Pin, state);
HAL_GPIO_WritePin(LED_G_GPIO_Port, LED_G_Pin, state);
HAL_GPIO_WritePin(LED_R_GPIO_Port, LED_R_Pin, state);
}
static void EnableAllPeripheralClocks(void)
{
/* AHB1 总线：GPIO、DMA 等 */
#if defined(__HAL_RCC_GPIOA_CLK_ENABLE)
__HAL_RCC_GPIOA_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_GPIOB_CLK_ENABLE)
__HAL_RCC_GPIOB_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_GPIOC_CLK_ENABLE)
__HAL_RCC_GPIOC_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_GPIOD_CLK_ENABLE)
__HAL_RCC_GPIOD_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_GPIOE_CLK_ENABLE)
__HAL_RCC_GPIOE_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_GPIOH_CLK_ENABLE)
__HAL_RCC_GPIOH_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_DMA1_CLK_ENABLE)
__HAL_RCC_DMA1_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_DMA2_CLK_ENABLE)
__HAL_RCC_DMA2_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_CRC_CLK_ENABLE)
__HAL_RCC_CRC_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_BKPSRAM_CLK_ENABLE)
__HAL_RCC_BKPSRAM_CLK_ENABLE();
#endif
/* AHB2 总线：USB OTG、RNG 等 */
#if defined(__HAL_RCC_USB_OTG_FS_CLK_ENABLE)
__HAL_RCC_USB_OTG_FS_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_RNG_CLK_ENABLE)
__HAL_RCC_RNG_CLK_ENABLE();
#endif
/* APB1 总线：定时器、串口、I2C 等 */
#if defined(__HAL_RCC_TIM2_CLK_ENABLE)
__HAL_RCC_TIM2_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM3_CLK_ENABLE)
__HAL_RCC_TIM3_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM4_CLK_ENABLE)
__HAL_RCC_TIM4_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM5_CLK_ENABLE)
__HAL_RCC_TIM5_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM6_CLK_ENABLE)
__HAL_RCC_TIM6_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM7_CLK_ENABLE)
__HAL_RCC_TIM7_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_SPI2_CLK_ENABLE)
__HAL_RCC_SPI2_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_SPI3_CLK_ENABLE)
__HAL_RCC_SPI3_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_I2C1_CLK_ENABLE)
__HAL_RCC_I2C1_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_I2C2_CLK_ENABLE)
__HAL_RCC_I2C2_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_I2C3_CLK_ENABLE)
__HAL_RCC_I2C3_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_USART2_CLK_ENABLE)
__HAL_RCC_USART2_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_USART3_CLK_ENABLE)
__HAL_RCC_USART3_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_UART4_CLK_ENABLE)
__HAL_RCC_UART4_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_UART5_CLK_ENABLE)
__HAL_RCC_UART5_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_PWR_CLK_ENABLE)
__HAL_RCC_PWR_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_DAC_CLK_ENABLE)
__HAL_RCC_DAC_CLK_ENABLE();
#endif
/* APB2 总线：高速外设 */
#if defined(__HAL_RCC_TIM1_CLK_ENABLE)
__HAL_RCC_TIM1_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM9_CLK_ENABLE)
__HAL_RCC_TIM9_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM10_CLK_ENABLE)
__HAL_RCC_TIM10_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_TIM11_CLK_ENABLE)
__HAL_RCC_TIM11_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_ADC1_CLK_ENABLE)
__HAL_RCC_ADC1_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_SDIO_CLK_ENABLE)
__HAL_RCC_SDIO_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_SPI1_CLK_ENABLE)
__HAL_RCC_SPI1_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_SPI4_CLK_ENABLE)
__HAL_RCC_SPI4_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_SYSCFG_CLK_ENABLE)
__HAL_RCC_SYSCFG_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_USART1_CLK_ENABLE)
__HAL_RCC_USART1_CLK_ENABLE();
#endif
#if defined(__HAL_RCC_USART6_CLK_ENABLE)
__HAL_RCC_USART6_CLK_ENABLE();
#endif
}
/* 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 */
