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Diffstat (limited to 'Projects/NUCLEO-WB35CE/Examples/COMP/COMP_CompareGpioVsVrefInt_IT/Src/main.c')
| -rw-r--r-- | Projects/NUCLEO-WB35CE/Examples/COMP/COMP_CompareGpioVsVrefInt_IT/Src/main.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/Projects/NUCLEO-WB35CE/Examples/COMP/COMP_CompareGpioVsVrefInt_IT/Src/main.c b/Projects/NUCLEO-WB35CE/Examples/COMP/COMP_CompareGpioVsVrefInt_IT/Src/main.c new file mode 100644 index 000000000..87a84f200 --- /dev/null +++ b/Projects/NUCLEO-WB35CE/Examples/COMP/COMP_CompareGpioVsVrefInt_IT/Src/main.c @@ -0,0 +1,346 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file COMP/COMP_CompareGpioVsVrefInt_IT/Src/main.c + * @author MCD Application Team + * @brief This example provides a short description of how to use the COMP + * peripheral Interrupt. + ****************************************************************************** + * @attention + * + * <h2><center>© Copyright (c) 2019 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" + +/* 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 ---------------------------------------------------------*/ +COMP_HandleTypeDef hcomp1; + +/* 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_COMP1_Init(void); +/* USER CODE BEGIN PFP */ +static void StopSequence_Config(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 */ + /* STM32WBxx HAL library initialization: + - Configure the Flash prefetch + - Systick timer is configured by default as source of time base, but user + can eventually implement his proper time base source (a general purpose + timer for example or other time source), keeping in mind that Time base + duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and + handled in milliseconds basis. + - Set NVIC Group Priority to 4 + - Low Level Initialization + */ + /* 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_COMP1_Init(); + /* USER CODE BEGIN 2 */ + BSP_LED_Init(LED2); + BSP_LED_Init(LED3); + + /* Start COMP1 */ + if(HAL_COMP_Start(&hcomp1) != HAL_OK) + { + /* Initialization Error */ + Error_Handler(); + } + /* USER CODE END 2 */ + + /* Infinite loop */ + /* USER CODE BEGIN WHILE */ + while (1) + { + /* USER CODE END WHILE */ + + /* USER CODE BEGIN 3 */ + /* Insert 5 second delay */ + HAL_Delay(5000); + + /* LED2 Off */ + BSP_LED_Off(LED2); + + /* Enter STOP mode */ + StopSequence_Config(); + /* ... STOP mode ... */ + + /* at that point, MCU has been awoken */ + + /* Re-configure the system clock */ + SystemClock_Config(); + + } + /* USER CODE END 3 */ +} + +/** + * @brief System Clock Configuration + * @retval None + */ +void SystemClock_Config(void) +{ + RCC_OscInitTypeDef RCC_OscInitStruct = {0}; + RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; + + /** Initializes the CPU, AHB and APB busses clocks + */ + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI; + RCC_OscInitStruct.MSIState = RCC_MSI_ON; + RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT; + RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; + RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI; + RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1; + RCC_OscInitStruct.PLL.PLLN = 32; + RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; + RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2; + RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2; + if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) + { + Error_Handler(); + } + /** Configure the SYSCLKSource, HCLK, PCLK1 and PCLK2 clocks dividers + */ + RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK4|RCC_CLOCKTYPE_HCLK2 + |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; + RCC_ClkInitStruct.AHBCLK2Divider = RCC_SYSCLK_DIV2; + RCC_ClkInitStruct.AHBCLK4Divider = RCC_SYSCLK_DIV1; + + if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK) + { + Error_Handler(); + } + /** Initializes the peripherals clocks + */ + /* USER CODE BEGIN Smps */ + + /* USER CODE END Smps */ +} + +/** + * @brief COMP1 Initialization Function + * @param None + * @retval None + */ +static void MX_COMP1_Init(void) +{ + + /* USER CODE BEGIN COMP1_Init 0 */ + + /* USER CODE END COMP1_Init 0 */ + + /* USER CODE BEGIN COMP1_Init 1 */ + + /* USER CODE END COMP1_Init 1 */ + hcomp1.Instance = COMP1; + hcomp1.Init.InputMinus = COMP_INPUT_MINUS_VREFINT; + hcomp1.Init.InputPlus = COMP_INPUT_PLUS_IO3; + hcomp1.Init.OutputPol = COMP_OUTPUTPOL_NONINVERTED; + hcomp1.Init.Hysteresis = COMP_HYSTERESIS_LOW; + hcomp1.Init.BlankingSrce = COMP_BLANKINGSRC_NONE; + hcomp1.Init.Mode = COMP_POWERMODE_MEDIUMSPEED; + hcomp1.Init.WindowMode = COMP_WINDOWMODE_DISABLE; + hcomp1.Init.TriggerMode = COMP_TRIGGERMODE_IT_RISING_FALLING; + if (HAL_COMP_Init(&hcomp1) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN COMP1_Init 2 */ + + /* USER CODE END COMP1_Init 2 */ + +} + +/** + * @brief GPIO Initialization Function + * @param None + * @retval None + */ +static void MX_GPIO_Init(void) +{ + GPIO_InitTypeDef GPIO_InitStruct = {0}; + + /* GPIO Ports Clock Enable */ + __HAL_RCC_GPIOC_CLK_ENABLE(); + __HAL_RCC_GPIOH_CLK_ENABLE(); + __HAL_RCC_GPIOB_CLK_ENABLE(); + __HAL_RCC_GPIOA_CLK_ENABLE(); + __HAL_RCC_GPIOE_CLK_ENABLE(); + + /*Configure GPIO pins : PC14 PC15 */ + GPIO_InitStruct.Pin = GPIO_PIN_14|GPIO_PIN_15; + GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); + + /*Configure GPIO pin : PH3 */ + GPIO_InitStruct.Pin = GPIO_PIN_3; + GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(GPIOH, &GPIO_InitStruct); + + /*Configure GPIO pins : PB8 PB9 PB2 PB0 + PB1 PB3 PB4 PB5 + PB6 PB7 */ + GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_2|GPIO_PIN_0 + |GPIO_PIN_1|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5 + |GPIO_PIN_6|GPIO_PIN_7; + GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); + + /*Configure GPIO pins : PA0 PA2 PA3 PA4 + PA5 PA6 PA7 PA8 + PA9 PA10 PA11 PA12 + PA13 PA14 PA15 */ + GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4 + |GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8 + |GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12 + |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15; + GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); + + /*Configure GPIO pin : PE4 */ + GPIO_InitStruct.Pin = GPIO_PIN_4; + GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(GPIOE, &GPIO_InitStruct); + +} + +/* USER CODE BEGIN 4 */ +/** + * @brief Prepare the system to enter STOP mode. + * @param None + * @retval None + */ + +static void StopSequence_Config(void) +{ + /* Request to enter STOP mode with regulator in low power */ + HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI); +} +/** + * @brief Comparator interrupt callback. + * @param hcomp: COMP handle + * @retval None + */ +void HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp) +{ + /* Toggle LED2 */ + BSP_LED_Toggle(LED2); +} + +/* 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 */ + while(1) + { + /* Toggle LED2 */ + BSP_LED_Toggle(LED2); + + /* Add a delay */ + HAL_Delay(500); + } + /* 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) */ + Error_Handler(); + /* USER CODE END 6 */ +} +#endif /* USE_FULL_ASSERT */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |