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- /**
- ******************************************************************************
- * @file : main.c
- * @brief : Main program body
- ******************************************************************************
- ** This notice applies to any and all portions of this file
- * that are not between comment pairs USER CODE BEGIN and
- * USER CODE END. Other portions of this file, whether
- * inserted by the user or by software development tools
- * are owned by their respective copyright owners.
- *
- * COPYRIGHT(c) 2019 STMicroelectronics
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of STMicroelectronics nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- ******************************************************************************
- */
- /* Includes ------------------------------------------------------------------*/
- #include "main.h"
- #include "stm32l4xx_hal.h"
- /* USER CODE BEGIN Includes */
- /* USER CODE END Includes */
- /* Private variables ---------------------------------------------------------*/
- IWDG_HandleTypeDef hiwdg;
- RTC_HandleTypeDef hrtc;
- UART_HandleTypeDef huart2;
- /* USER CODE BEGIN PV */
- /* Private variables ---------------------------------------------------------*/
- /* USER CODE END PV */
- /* Private function prototypes -----------------------------------------------*/
- void SystemClock_Config(void);
- static void MX_GPIO_Init(void);
- static void MX_USART2_UART_Init(void);
- static void MX_IWDG_Init(void);
- static void MX_RTC_Init(void);
- /* USER CODE BEGIN PFP */
- /* Private function prototypes -----------------------------------------------*/
- /* USER CODE END PFP */
- /* USER CODE BEGIN 0 */
- /* USER CODE END 0 */
- /**
- * @brief The application entry point.
- *
- * @retval None
- */
- 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_USART2_UART_Init();
- MX_IWDG_Init();
- MX_RTC_Init();
- /* USER CODE BEGIN 2 */
- /* 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;
- RCC_ClkInitTypeDef RCC_ClkInitStruct;
- RCC_PeriphCLKInitTypeDef PeriphClkInit;
- /**Configure LSE Drive Capability
- */
- HAL_PWR_EnableBkUpAccess();
- __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
- /**Initializes the CPU, AHB and APB busses clocks
- */
- RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_LSE
- |RCC_OSCILLATORTYPE_MSI;
- RCC_OscInitStruct.LSEState = RCC_LSE_ON;
- RCC_OscInitStruct.LSIState = RCC_LSI_ON;
- RCC_OscInitStruct.MSIState = RCC_MSI_ON;
- RCC_OscInitStruct.MSICalibrationValue = 0;
- RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
- RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
- RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
- RCC_OscInitStruct.PLL.PLLM = 1;
- RCC_OscInitStruct.PLL.PLLN = 16;
- RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
- RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
- RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
- if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- /**Initializes the CPU, AHB and APB busses 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_1) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_RTC|RCC_PERIPHCLK_USART2;
- PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
- PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
- if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- /**Configure the main internal regulator output voltage
- */
- if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- /**Configure the Systick interrupt time
- */
- HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
- /**Configure the Systick
- */
- HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
- /**Enable MSI Auto calibration
- */
- HAL_RCCEx_EnableMSIPLLMode();
- /* SysTick_IRQn interrupt configuration */
- HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
- }
- /* IWDG init function */
- static void MX_IWDG_Init(void)
- {
- hiwdg.Instance = IWDG;
- hiwdg.Init.Prescaler = IWDG_PRESCALER_4;
- hiwdg.Init.Window = 4095;
- hiwdg.Init.Reload = 4095;
- if (HAL_IWDG_Init(&hiwdg) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- }
- /* RTC init function */
- static void MX_RTC_Init(void)
- {
- /* USER CODE BEGIN RTC_Init 0 */
- /* USER CODE END RTC_Init 0 */
- RTC_TimeTypeDef sTime;
- RTC_DateTypeDef sDate;
- /* USER CODE BEGIN RTC_Init 1 */
- /* USER CODE END RTC_Init 1 */
- /**Initialize RTC Only
- */
- hrtc.Instance = RTC;
- hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
- hrtc.Init.AsynchPrediv = 127;
- hrtc.Init.SynchPrediv = 255;
- hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
- hrtc.Init.OutPutRemap = RTC_OUTPUT_REMAP_NONE;
- hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
- hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
- if (HAL_RTC_Init(&hrtc) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- /**Initialize RTC and set the Time and Date
- */
- sTime.Hours = 0x0;
- sTime.Minutes = 0x0;
- sTime.Seconds = 0x0;
- sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
- sTime.StoreOperation = RTC_STOREOPERATION_RESET;
- if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- sDate.WeekDay = RTC_WEEKDAY_MONDAY;
- sDate.Month = RTC_MONTH_JANUARY;
- sDate.Date = 0x1;
- sDate.Year = 0x0;
- if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- }
- /* USART2 init function */
- static void MX_USART2_UART_Init(void)
- {
- huart2.Instance = USART2;
- huart2.Init.BaudRate = 115200;
- huart2.Init.WordLength = UART_WORDLENGTH_8B;
- huart2.Init.StopBits = UART_STOPBITS_1;
- huart2.Init.Parity = UART_PARITY_NONE;
- huart2.Init.Mode = UART_MODE_TX_RX;
- huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
- huart2.Init.OverSampling = UART_OVERSAMPLING_16;
- huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
- huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
- if (HAL_UART_Init(&huart2) != HAL_OK)
- {
- _Error_Handler(__FILE__, __LINE__);
- }
- }
- /** Configure pins as
- * Analog
- * Input
- * Output
- * EVENT_OUT
- * EXTI
- */
- static void MX_GPIO_Init(void)
- {
- GPIO_InitTypeDef GPIO_InitStruct;
- /* GPIO Ports Clock Enable */
- __HAL_RCC_GPIOC_CLK_ENABLE();
- __HAL_RCC_GPIOA_CLK_ENABLE();
- __HAL_RCC_GPIOB_CLK_ENABLE();
- /*Configure GPIO pin Output Level */
- HAL_GPIO_WritePin(LD3_GPIO_Port, LD3_Pin, GPIO_PIN_RESET);
- /*Configure GPIO pin : LD3_Pin */
- GPIO_InitStruct.Pin = LD3_Pin;
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
- HAL_GPIO_Init(LD3_GPIO_Port, &GPIO_InitStruct);
- }
- /* USER CODE BEGIN 4 */
- /* USER CODE END 4 */
- /**
- * @brief This function is executed in case of error occurrence.
- * @param file: The file name as string.
- * @param line: The line in file as a number.
- * @retval None
- */
- void _Error_Handler(char *file, int line)
- {
- /* USER CODE BEGIN Error_Handler_Debug */
- /* User can add his own implementation to report the HAL error return state */
- 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,
- 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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