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Diffstat (limited to 'Projects/NUCLEO-WB35CE/Examples/I2C/I2C_TwoBoards_ComDMA/Src/stm32wbxx_hal_msp.c')
| -rw-r--r-- | Projects/NUCLEO-WB35CE/Examples/I2C/I2C_TwoBoards_ComDMA/Src/stm32wbxx_hal_msp.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/Projects/NUCLEO-WB35CE/Examples/I2C/I2C_TwoBoards_ComDMA/Src/stm32wbxx_hal_msp.c b/Projects/NUCLEO-WB35CE/Examples/I2C/I2C_TwoBoards_ComDMA/Src/stm32wbxx_hal_msp.c new file mode 100644 index 000000000..d0f83f711 --- /dev/null +++ b/Projects/NUCLEO-WB35CE/Examples/I2C/I2C_TwoBoards_ComDMA/Src/stm32wbxx_hal_msp.c @@ -0,0 +1,202 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file I2C/I2C_TwoBoards_ComDMA/Src/stm32wbxx_hal_msp.c + * @author MCD Application Team + * @brief HAL MSP module. + ****************************************************************************** + * @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" +/* USER CODE BEGIN Includes */ + +/* USER CODE END Includes */ +extern DMA_HandleTypeDef hdma_i2c1_tx; + +extern DMA_HandleTypeDef hdma_i2c1_rx; + +/* Private typedef -----------------------------------------------------------*/ +/* USER CODE BEGIN TD */ + +/* USER CODE END TD */ + +/* Private define ------------------------------------------------------------*/ +/* USER CODE BEGIN Define */ + +/* USER CODE END Define */ + +/* Private macro -------------------------------------------------------------*/ +/* USER CODE BEGIN Macro */ + +/* USER CODE END Macro */ + +/* Private variables ---------------------------------------------------------*/ +/* USER CODE BEGIN PV */ + +/* USER CODE END PV */ + +/* Private function prototypes -----------------------------------------------*/ +/* USER CODE BEGIN PFP */ + +/* USER CODE END PFP */ + +/* External functions --------------------------------------------------------*/ +/* USER CODE BEGIN ExternalFunctions */ + +/* USER CODE END ExternalFunctions */ + +/* USER CODE BEGIN 0 */ + +/* USER CODE END 0 */ +/** + * Initializes the Global MSP. + */ +void HAL_MspInit(void) +{ + /* USER CODE BEGIN MspInit 0 */ + + /* USER CODE END MspInit 0 */ + + /* System interrupt init*/ + + /* USER CODE BEGIN MspInit 1 */ + + /* USER CODE END MspInit 1 */ +} + +/** +* @brief I2C MSP Initialization +* This function configures the hardware resources used in this example +* @param hi2c: I2C handle pointer +* @retval None +*/ +void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c) +{ + GPIO_InitTypeDef GPIO_InitStruct = {0}; + if(hi2c->Instance==I2C1) + { + /* USER CODE BEGIN I2C1_MspInit 0 */ + RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct; + + /*##-1- Configure the I2C clock source. The clock is derived from the SYSCLK #*/ + RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C1; + RCC_PeriphCLKInitStruct.I2c1ClockSelection = RCC_I2C1CLKSOURCE_SYSCLK; + HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct); + /* USER CODE END I2C1_MspInit 0 */ + + __HAL_RCC_GPIOB_CLK_ENABLE(); + /**I2C1 GPIO Configuration + PB8 ------> I2C1_SCL + PB9 ------> I2C1_SDA + */ + GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9; + GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; + GPIO_InitStruct.Pull = GPIO_PULLUP; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; + GPIO_InitStruct.Alternate = GPIO_AF4_I2C1; + HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); + + /* Peripheral clock enable */ + __HAL_RCC_I2C1_CLK_ENABLE(); + + /* I2C1 DMA Init */ + /* I2C1_TX Init */ + hdma_i2c1_tx.Instance = DMA1_Channel1; + hdma_i2c1_tx.Init.Request = DMA_REQUEST_I2C1_TX; + hdma_i2c1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; + hdma_i2c1_tx.Init.PeriphInc = DMA_PINC_DISABLE; + hdma_i2c1_tx.Init.MemInc = DMA_MINC_ENABLE; + hdma_i2c1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; + hdma_i2c1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; + hdma_i2c1_tx.Init.Mode = DMA_NORMAL; + hdma_i2c1_tx.Init.Priority = DMA_PRIORITY_LOW; + if (HAL_DMA_Init(&hdma_i2c1_tx) != HAL_OK) + { + Error_Handler(); + } + + __HAL_LINKDMA(hi2c,hdmatx,hdma_i2c1_tx); + + /* I2C1_RX Init */ + hdma_i2c1_rx.Instance = DMA1_Channel2; + hdma_i2c1_rx.Init.Request = DMA_REQUEST_I2C1_RX; + hdma_i2c1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; + hdma_i2c1_rx.Init.PeriphInc = DMA_PINC_DISABLE; + hdma_i2c1_rx.Init.MemInc = DMA_MINC_ENABLE; + hdma_i2c1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; + hdma_i2c1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; + hdma_i2c1_rx.Init.Mode = DMA_NORMAL; + hdma_i2c1_rx.Init.Priority = DMA_PRIORITY_HIGH; + if (HAL_DMA_Init(&hdma_i2c1_rx) != HAL_OK) + { + Error_Handler(); + } + + __HAL_LINKDMA(hi2c,hdmarx,hdma_i2c1_rx); + + /* I2C1 interrupt Init */ + HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 0); + HAL_NVIC_EnableIRQ(I2C1_EV_IRQn); + HAL_NVIC_SetPriority(I2C1_ER_IRQn, 0, 0); + HAL_NVIC_EnableIRQ(I2C1_ER_IRQn); + /* USER CODE BEGIN I2C1_MspInit 1 */ + + /* USER CODE END I2C1_MspInit 1 */ + } + +} + +/** +* @brief I2C MSP De-Initialization +* This function freeze the hardware resources used in this example +* @param hi2c: I2C handle pointer +* @retval None +*/ +void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c) +{ + if(hi2c->Instance==I2C1) + { + /* USER CODE BEGIN I2C1_MspDeInit 0 */ + + /* USER CODE END I2C1_MspDeInit 0 */ + /* Peripheral clock disable */ + __HAL_RCC_I2C1_CLK_DISABLE(); + + /**I2C1 GPIO Configuration + PB8 ------> I2C1_SCL + PB9 ------> I2C1_SDA + */ + HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8|GPIO_PIN_9); + + /* I2C1 DMA DeInit */ + HAL_DMA_DeInit(hi2c->hdmatx); + HAL_DMA_DeInit(hi2c->hdmarx); + + /* I2C1 interrupt DeInit */ + HAL_NVIC_DisableIRQ(I2C1_EV_IRQn); + HAL_NVIC_DisableIRQ(I2C1_ER_IRQn); + /* USER CODE BEGIN I2C1_MspDeInit 1 */ + + /* USER CODE END I2C1_MspDeInit 1 */ + } + +} + +/* USER CODE BEGIN 1 */ + +/* USER CODE END 1 */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |