/** ****************************************************************************** * @file stm32l0xx_hal_dma.h * @author MCD Application Team * @version V1.2.0 * @date 06-February-2015 * @brief Header file of DMA HAL module. ****************************************************************************** * @attention * *

© COPYRIGHT(c) 2015 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. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32L0xx_HAL_DMA_H #define __STM32L0xx_HAL_DMA_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32l0xx_hal_def.h" /** @addtogroup STM32L0xx_HAL_Driver * @{ */ /** @defgroup DMA DMA * @{ */ /* Exported types ------------------------------------------------------------*/ /** * @brief DMA Configuration Structure definition */ typedef struct { uint32_t Request; /*!< Specifies the request selected for the specified channel. This parameter can be a value of @ref DMA_request */ uint32_t Direction; /*!< Specifies if the data will be transferred from memory to peripheral, from memory to memory or from peripheral to memory. This parameter can be a value of @ref DMA_Data_transfer_direction */ uint32_t PeriphInc; /*!< Specifies whether the Peripheral address register should be incremented or not. When Memory to Memory transfer is used, this is the Source Increment mode This parameter can be a value of @ref DMA_Peripheral_incremented_mode */ uint32_t MemInc; /*!< Specifies whether the memory address register should be incremented or not. When Memory to Memory transfer is used, this is the Destination Increment mode This parameter can be a value of @ref DMA_Memory_incremented_mode */ uint32_t PeriphDataAlignment; /*!< Specifies the Peripheral data width. When Memory to Memory transfer is used, this is the Source Alignment format This parameter can be a value of @ref DMA_Peripheral_data_size */ uint32_t MemDataAlignment; /*!< Specifies the Memory data width. When Memory to Memory transfer is used, this is the Destination Alignment format This parameter can be a value of @ref DMA_Memory_data_size */ uint32_t Mode; /*!< Specifies the operation mode of the DMAy Channelx (Normal or Circular). This parameter can be a value of @ref DMA_mode @note The circular buffer mode cannot be used if the memory-to-memory data transfer is configured on the selected Channel */ uint32_t Priority; /*!< Specifies the software priority for the DMAy Channelx. This parameter can be a value of @ref DMA_Priority_level */ } DMA_InitTypeDef; /** * @brief DMA Configuration enumeration values definition */ typedef enum { DMA_MODE = 0, /*!< Control related DMA mode Parameter in DMA_InitTypeDef */ DMA_PRIORITY = 1, /*!< Control related priority level Parameter in DMA_InitTypeDef */ } DMA_ControlTypeDef; /** * @brief HAL DMA State structures definition */ typedef enum { HAL_DMA_STATE_RESET = 0x00, /*!< DMA not yet initialized or disabled */ HAL_DMA_STATE_READY = 0x01, /*!< DMA process success and ready for use */ HAL_DMA_STATE_BUSY = 0x02, /*!< DMA process is ongoing */ HAL_DMA_STATE_TIMEOUT = 0x03, /*!< DMA timeout state */ HAL_DMA_STATE_ERROR = 0x04, /*!< DMA error state */ HAL_DMA_STATE_READY_HALF = 0x05, /*!< DMA Half process success */ }HAL_DMA_StateTypeDef; /** * @brief HAL DMA Error Code structure definition */ typedef enum { HAL_DMA_FULL_TRANSFER = 0x00, /*!< Full transfer */ HAL_DMA_HALF_TRANSFER = 0x01, /*!< Half Transfer */ }HAL_DMA_LevelCompleteTypeDef; /** * @brief DMA handle Structure definition */ typedef struct __DMA_HandleTypeDef { DMA_Channel_TypeDef *Instance; /*!< Register base address */ DMA_InitTypeDef Init; /*!< DMA communication parameters */ HAL_LockTypeDef Lock; /*!< DMA locking object */ __IO HAL_DMA_StateTypeDef State; /*!< DMA transfer state */ void *Parent; /*!< Parent object state */ void (* XferCpltCallback)( struct __DMA_HandleTypeDef * hdma); /*!< DMA transfer complete callback */ void (* XferHalfCpltCallback)( struct __DMA_HandleTypeDef * hdma); /*!< DMA Half transfer complete callback */ void (* XferErrorCallback)( struct __DMA_HandleTypeDef * hdma); /*!< DMA transfer error callback */ __IO uint32_t ErrorCode; /*!< DMA Error code */ } DMA_HandleTypeDef; /* Exported constants --------------------------------------------------------*/ /** @defgroup DMA_Exported_Constants DMA Exported Constants * @{ */ /** @defgroup DMA_Error_Code DMA Error Codes * @{ */ #define HAL_DMA_ERROR_NONE ((uint32_t)0x00000000) /*!< No error */ #define HAL_DMA_ERROR_TE ((uint32_t)0x00000001) /*!< Transfer error */ #define HAL_DMA_ERROR_TIMEOUT ((uint32_t)0x00000020) /*!< Timeout error */ #define IS_DMA_ALL_PERIPH(PERIPH) (((PERIPH) == DMA1_Channel1) || \ ((PERIPH) == DMA1_Channel2) || \ ((PERIPH) == DMA1_Channel3) || \ ((PERIPH) == DMA1_Channel4) || \ ((PERIPH) == DMA1_Channel5) || \ ((PERIPH) == DMA1_Channel6) || \ ((PERIPH) == DMA1_Channel7)) #define IS_DMA_ALL_CONTROLLER(CONTROLLER) (((CONTROLLER) == DMA1)) /** * @} */ /** @defgroup DMA_request DMA request defintiions * @{ */ #if defined (STM32L071xx) || defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L081xx) || defined (STM32L082xx) || defined (STM32L083xx) #define DMA_REQUEST_0 ((uint32_t)0x00000000) #define DMA_REQUEST_1 ((uint32_t)0x00000001) #define DMA_REQUEST_2 ((uint32_t)0x00000002) #define DMA_REQUEST_3 ((uint32_t)0x00000003) #define DMA_REQUEST_4 ((uint32_t)0x00000004) #define DMA_REQUEST_5 ((uint32_t)0x00000005) #define DMA_REQUEST_6 ((uint32_t)0x00000006) #define DMA_REQUEST_7 ((uint32_t)0x00000007) #define DMA_REQUEST_8 ((uint32_t)0x00000008) #define DMA_REQUEST_9 ((uint32_t)0x00000009) #define DMA_REQUEST_10 ((uint32_t)0x0000000A) #define DMA_REQUEST_11 ((uint32_t)0x0000000B) #define DMA_REQUEST_12 ((uint32_t)0x0000000C) #define DMA_REQUEST_13 ((uint32_t)0x0000000D) #define DMA_REQUEST_14 ((uint32_t)0x0000000E) #define DMA_REQUEST_15 ((uint32_t)0x0000000F) #define IS_DMA_ALL_REQUEST(REQUEST) (((REQUEST) == DMA_REQUEST_0) || \ ((REQUEST) == DMA_REQUEST_1) || \ ((REQUEST) == DMA_REQUEST_2) || \ ((REQUEST) == DMA_REQUEST_3) || \ ((REQUEST) == DMA_REQUEST_4) || \ ((REQUEST) == DMA_REQUEST_5) || \ ((REQUEST) == DMA_REQUEST_6) || \ ((REQUEST) == DMA_REQUEST_7) || \ ((REQUEST) == DMA_REQUEST_8) || \ ((REQUEST) == DMA_REQUEST_9) || \ ((REQUEST) == DMA_REQUEST_10) || \ ((REQUEST) == DMA_REQUEST_11) || \ ((REQUEST) == DMA_REQUEST_12) || \ ((REQUEST) == DMA_REQUEST_13) || \ ((REQUEST) == DMA_REQUEST_14) || \ ((REQUEST) == DMA_REQUEST_15)) #else /* #if STM32L071xx || STM32L072xx || STM32L073xx || STM32L081xx || STM32L082xx || STM32L083xx */ #define DMA_REQUEST_0 ((uint32_t)0x00000000) #define DMA_REQUEST_1 ((uint32_t)0x00000001) #define DMA_REQUEST_2 ((uint32_t)0x00000002) #define DMA_REQUEST_3 ((uint32_t)0x00000003) #define DMA_REQUEST_4 ((uint32_t)0x00000004) #define DMA_REQUEST_5 ((uint32_t)0x00000005) #define DMA_REQUEST_6 ((uint32_t)0x00000006) #define DMA_REQUEST_7 ((uint32_t)0x00000007) #define DMA_REQUEST_8 ((uint32_t)0x00000008) #define DMA_REQUEST_9 ((uint32_t)0x00000009) #define DMA_REQUEST_11 ((uint32_t)0x0000000B) #define IS_DMA_ALL_REQUEST(REQUEST) (((REQUEST) == DMA_REQUEST_0) || \ ((REQUEST) == DMA_REQUEST_1) || \ ((REQUEST) == DMA_REQUEST_2) || \ ((REQUEST) == DMA_REQUEST_3) || \ ((REQUEST) == DMA_REQUEST_4) || \ ((REQUEST) == DMA_REQUEST_5) || \ ((REQUEST) == DMA_REQUEST_6) || \ ((REQUEST) == DMA_REQUEST_7) || \ ((REQUEST) == DMA_REQUEST_8) || \ ((REQUEST) == DMA_REQUEST_9) || \ ((REQUEST) == DMA_REQUEST_11)) #endif /* #if defined (STM32L072xx) || defined (STM32L073xx) || defined (STM32L082xx) || defined (STM32L083xx) */ /** * @} */ /** @defgroup DMA_Data_transfer_direction DMA Data Transfer directions * @{ */ #define DMA_PERIPH_TO_MEMORY ((uint32_t)0x00000000) /*!< Peripheral to memory direction */ #define DMA_MEMORY_TO_PERIPH ((uint32_t)DMA_CCR_DIR) /*!< Memory to peripheral direction */ #define DMA_MEMORY_TO_MEMORY ((uint32_t)(DMA_CCR_MEM2MEM)) /*!< Memory to memory direction */ #define IS_DMA_DIRECTION(DIRECTION) (((DIRECTION) == DMA_PERIPH_TO_MEMORY ) || \ ((DIRECTION) == DMA_MEMORY_TO_PERIPH) || \ ((DIRECTION) == DMA_MEMORY_TO_MEMORY)) /** * @} */ /** @defgroup DMA_Data_buffer_size * @{ */ #define IS_DMA_BUFFER_SIZE(SIZE) (((SIZE) >= 0x1) && ((SIZE) < 0x10000)) /** * @} */ /** @defgroup DMA_Peripheral_incremented_mode * @{ */ #define DMA_PINC_ENABLE ((uint32_t)DMA_CCR_PINC) /*!< Peripheral increment mode Enable */ #define DMA_PINC_DISABLE ((uint32_t)0x00000000) /*!< Peripheral increment mode Disable */ #define IS_DMA_PERIPHERAL_INC_STATE(STATE) (((STATE) == DMA_PINC_ENABLE) || \ ((STATE) == DMA_PINC_DISABLE)) /** * @} */ /** @defgroup DMA_Memory_incremented_mode * @{ */ #define DMA_MINC_ENABLE ((uint32_t)DMA_CCR_MINC) /*!< Memory increment mode Enable */ #define DMA_MINC_DISABLE ((uint32_t)0x00000000) /*!< Memory increment mode Disable */ #define IS_DMA_MEMORY_INC_STATE(STATE) (((STATE) == DMA_MINC_ENABLE) || \ ((STATE) == DMA_MINC_DISABLE)) /** * @} */ /** @defgroup DMA_Peripheral_data_size * @{ */ #define DMA_PDATAALIGN_BYTE ((uint32_t)0x00000000) /*!< Peripheral data alignment : Byte */ #define DMA_PDATAALIGN_HALFWORD ((uint32_t)DMA_CCR_PSIZE_0) /*!< Peripheral data alignment : HalfWord */ #define DMA_PDATAALIGN_WORD ((uint32_t)DMA_CCR_PSIZE_1) /*!< Peripheral data alignment : Word */ #define IS_DMA_PERIPHERAL_DATA_SIZE(SIZE) (((SIZE) == DMA_PDATAALIGN_BYTE) || \ ((SIZE) == DMA_PDATAALIGN_HALFWORD) || \ ((SIZE) == DMA_PDATAALIGN_WORD)) /** * @} */ /** @defgroup DMA_Memory_data_size * @{ */ #define DMA_MDATAALIGN_BYTE ((uint32_t)0x00000000) /*!< Memory data alignment : Byte */ #define DMA_MDATAALIGN_HALFWORD ((uint32_t)DMA_CCR_MSIZE_0) /*!< Memory data alignment : HalfWord */ #define DMA_MDATAALIGN_WORD ((uint32_t)DMA_CCR_MSIZE_1) /*!< Memory data alignment : Word */ #define IS_DMA_MEMORY_DATA_SIZE(SIZE) (((SIZE) == DMA_MDATAALIGN_BYTE) || \ ((SIZE) == DMA_MDATAALIGN_HALFWORD) || \ ((SIZE) == DMA_MDATAALIGN_WORD )) /** * @} */ /** @defgroup DMA_mode * @{ */ #define DMA_NORMAL ((uint32_t)0x00000000) /*!< Normal Mode */ #define DMA_CIRCULAR ((uint32_t)DMA_CCR_CIRC) /*!< Circular Mode */ #define IS_DMA_MODE(MODE) (((MODE) == DMA_NORMAL ) || \ ((MODE) == DMA_CIRCULAR)) /** * @} */ /** @defgroup DMA_Priority_level * @{ */ #define DMA_PRIORITY_LOW ((uint32_t)0x00000000) /*!< Priority level : Low */ #define DMA_PRIORITY_MEDIUM ((uint32_t)DMA_CCR_PL_0) /*!< Priority level : Medium */ #define DMA_PRIORITY_HIGH ((uint32_t)DMA_CCR_PL_1) /*!< Priority level : High */ #define DMA_PRIORITY_VERY_HIGH ((uint32_t)DMA_CCR_PL) /*!< Priority level : Very_High */ #define IS_DMA_PRIORITY(PRIORITY) (((PRIORITY) == DMA_PRIORITY_LOW ) || \ ((PRIORITY) == DMA_PRIORITY_MEDIUM) || \ ((PRIORITY) == DMA_PRIORITY_HIGH) || \ ((PRIORITY) == DMA_PRIORITY_VERY_HIGH)) /** * @} */ /** @defgroup DMA_interrupt_enable_definitions * @{ */ #define DMA_IT_TC ((uint32_t)DMA_CCR_TCIE) #define DMA_IT_HT ((uint32_t)DMA_CCR_HTIE) #define DMA_IT_TE ((uint32_t)DMA_CCR_TEIE) /** * @} */ /** @defgroup DMA_flag_definitions * @{ */ #define DMA_FLAG_GL1 ((uint32_t)0x00000001) #define DMA_FLAG_TC1 ((uint32_t)0x00000002) #define DMA_FLAG_HT1 ((uint32_t)0x00000004) #define DMA_FLAG_TE1 ((uint32_t)0x00000008) #define DMA_FLAG_GL2 ((uint32_t)0x00000010) #define DMA_FLAG_TC2 ((uint32_t)0x00000020) #define DMA_FLAG_HT2 ((uint32_t)0x00000040) #define DMA_FLAG_TE2 ((uint32_t)0x00000080) #define DMA_FLAG_GL3 ((uint32_t)0x00000100) #define DMA_FLAG_TC3 ((uint32_t)0x00000200) #define DMA_FLAG_HT3 ((uint32_t)0x00000400) #define DMA_FLAG_TE3 ((uint32_t)0x00000800) #define DMA_FLAG_GL4 ((uint32_t)0x00001000) #define DMA_FLAG_TC4 ((uint32_t)0x00002000) #define DMA_FLAG_HT4 ((uint32_t)0x00004000) #define DMA_FLAG_TE4 ((uint32_t)0x00008000) #define DMA_FLAG_GL5 ((uint32_t)0x00010000) #define DMA_FLAG_TC5 ((uint32_t)0x00020000) #define DMA_FLAG_HT5 ((uint32_t)0x00040000) #define DMA_FLAG_TE5 ((uint32_t)0x00080000) #define DMA_FLAG_GL6 ((uint32_t)0x00100000) #define DMA_FLAG_TC6 ((uint32_t)0x00200000) #define DMA_FLAG_HT6 ((uint32_t)0x00400000) #define DMA_FLAG_TE6 ((uint32_t)0x00800000) #define DMA_FLAG_GL7 ((uint32_t)0x01000000) #define DMA_FLAG_TC7 ((uint32_t)0x02000000) #define DMA_FLAG_HT7 ((uint32_t)0x04000000) #define DMA_FLAG_TE7 ((uint32_t)0x08000000) /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /** @defgroup DMA_Exported_Macros DMA Exported Macros * @{ */ /** @brief Reset DMA handle state * @param __HANDLE__: DMA handle * @retval None */ #define __HAL_DMA_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_DMA_STATE_RESET) /** * @brief Enable the specified DMA Channel. * @param __HANDLE__: DMA handle * @retval None. */ #define __HAL_DMA_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CCR |= DMA_CCR_EN) /** * @brief Disable the specified DMA Channel. * @param __HANDLE__: DMA handle * @retval None. */ #define __HAL_DMA_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CCR &= ~DMA_CCR_EN) /* Interrupt & Flag management */ /** * @brief Returns the current DMA Channel transfer complete flag. * @param __HANDLE__: DMA handle * @retval The specified transfer complete flag index. */ #define __HAL_DMA_GET_TC_FLAG_INDEX(__HANDLE__) \ (((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel1))? DMA_FLAG_TC1 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel2))? DMA_FLAG_TC2 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel3))? DMA_FLAG_TC3 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel4))? DMA_FLAG_TC4 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel5))? DMA_FLAG_TC5 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel6))? DMA_FLAG_TC6 :\ DMA_FLAG_TC7) /** * @brief Returns the current DMA Channel half transfer complete flag. * @param __HANDLE__: DMA handle * @retval The specified half transfer complete flag index. */ #define __HAL_DMA_GET_HT_FLAG_INDEX(__HANDLE__)\ (((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel1))? DMA_FLAG_HT1 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel2))? DMA_FLAG_HT2 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel3))? DMA_FLAG_HT3 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel4))? DMA_FLAG_HT4 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel5))? DMA_FLAG_HT5 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel6))? DMA_FLAG_HT6 :\ DMA_FLAG_HT7) /** * @brief Returns the current DMA Channel transfer error flag. * @param __HANDLE__: DMA handle * @retval The specified transfer error flag index. */ #define __HAL_DMA_GET_TE_FLAG_INDEX(__HANDLE__)\ (((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel1))? DMA_FLAG_TE1 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel2))? DMA_FLAG_TE2 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel3))? DMA_FLAG_TE3 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel4))? DMA_FLAG_TE4 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel5))? DMA_FLAG_TE5 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel6))? DMA_FLAG_TE6 :\ DMA_FLAG_TE7) /** * @brief Returns the current DMA Channel Global interrupt flag. * @param __HANDLE__: DMA handle * @retval The specified transfer error flag index. */ #define __HAL_DMA_GET_GI_FLAG_INDEX(__HANDLE__)\ (((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel1))? DMA_ISR_GIF1 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel2))? DMA_ISR_GIF2 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel3))? DMA_ISR_GIF3 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel4))? DMA_ISR_GIF4 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel5))? DMA_ISR_GIF5 :\ ((uint32_t)((__HANDLE__)->Instance) == ((uint32_t)DMA1_Channel6))? DMA_ISR_GIF6 :\ DMA_ISR_GIF7) /** * @brief Get the DMA Channel pending flags. * @param __HANDLE__: DMA handle * @param __FLAG__: Get the specified flag. * This parameter can be any combination of the following values: * @arg DMA_FLAG_TCIFx: Transfer complete flag * @arg DMA_FLAG_HTIFx: Half transfer complete flag * @arg DMA_FLAG_TEIFx: Transfer error flag * @arg DMA_ISR_GIFx: Global interrupt flag * Where x can be 0_4, 1_5, 2_6 or 3_7 to select the DMA Channel flag. * @retval The state of FLAG (SET or RESET). */ #define __HAL_DMA_GET_FLAG(__HANDLE__, __FLAG__) (DMA1->ISR & (__FLAG__)) /** * @brief Clears the DMA Channel pending flags. * @param __HANDLE__: DMA handle * @param __FLAG__: specifies the flag to clear. * This parameter can be any combination of the following values: * @arg DMA_FLAG_TCIFx: Transfer complete flag * @arg DMA_FLAG_HTIFx: Half transfer complete flag * @arg DMA_FLAG_TEIFx: Transfer error flag * @arg DMA_ISR_GIFx: Global interrupt flag * Where x can be 0_4, 1_5, 2_6 or 3_7 to select the DMA Channel flag. * @retval None */ #define __HAL_DMA_CLEAR_FLAG(__HANDLE__, __FLAG__) (DMA1->IFCR = (__FLAG__)) /** * @brief Enables the specified DMA Channel interrupts. * @param __HANDLE__: DMA handle * @param __INTERRUPT__: specifies the DMA interrupt sources to be enabled or disabled. * This parameter can be any combination of the following values: * @arg DMA_IT_TC: Transfer complete interrupt mask * @arg DMA_IT_HT: Half transfer complete interrupt mask * @arg DMA_IT_TE: Transfer error interrupt mask * @retval None */ #define __HAL_DMA_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CCR |= (__INTERRUPT__)) /** * @brief Disables the specified DMA Channel interrupts. * @param __HANDLE__: DMA handle * @param __INTERRUPT__: specifies the DMA interrupt sources to be enabled or disabled. * This parameter can be any combination of the following values: * @arg DMA_IT_TC: Transfer complete interrupt mask * @arg DMA_IT_HT: Half transfer complete interrupt mask * @arg DMA_IT_TE: Transfer error interrupt mask * @retval None */ #define __HAL_DMA_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CCR &= ~(__INTERRUPT__)) /** * @brief Checks whether the specified DMA Channel interrupt has occurred or not. * @param __HANDLE__: DMA handle * @param __INTERRUPT__: specifies the DMA interrupt source to check. * This parameter can be one of the following values: * @arg DMA_IT_TC: Transfer complete interrupt mask * @arg DMA_IT_HT: Half transfer complete interrupt mask * @arg DMA_IT_TE: Transfer error interrupt mask * @retval The state of DMA_IT (SET or RESET). */ #define __HAL_DMA_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->CCR & (__INTERRUPT__))) /** * @} */ /* Exported functions --------------------------------------------------------*/ /** @defgroup DMA_Exported_Functions DMA Exported Functions * @{ */ /** @defgroup DMA_Exported_Functions_Group1 Initialization/de-initialization functions * @{ */ /* Initialization and de-initialization functions *****************************/ HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma); HAL_StatusTypeDef HAL_DMA_DeInit (DMA_HandleTypeDef *hdma); /** * @} */ /** @defgroup DMA_Exported_Functions_Group2 I/O operation functions * @{ */ /* IO operation functions *****************************************************/ HAL_StatusTypeDef HAL_DMA_Start (DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma); HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t CompleteLevel, uint32_t Timeout); void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma); /** * @} */ /** @defgroup DMA_Exported_Functions_Group3 Peripheral State functions * @{ */ /* Peripheral State and Error functions ***************************************/ HAL_DMA_StateTypeDef HAL_DMA_GetState(DMA_HandleTypeDef *hdma); uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma); /** * @} */ /** * @} */ /** * @} */ /** * @} */ #ifdef __cplusplus } #endif #endif /* __STM32L0xx_HAL_DMA_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/