diff options
Diffstat (limited to 'stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c')
| -rw-r--r-- | stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c | 230 |
1 files changed, 115 insertions, 115 deletions
diff --git a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c index 4a48d5f..a249c81 100644 --- a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c +++ b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c @@ -5,56 +5,56 @@ * @version V1.0.4 * @date 29-April-2016 * @brief DMA HAL module driver. - * - * This file provides firmware functions to manage the following + * + * This file provides firmware functions to manage the following * functionalities of the Direct Memory Access (DMA) peripheral: * + Initialization and de-initialization functions * + IO operation functions * + Peripheral State and errors functions - @verbatim - ============================================================================== + @verbatim + ============================================================================== ##### How to use this driver ##### - ============================================================================== + ============================================================================== [..] (#) Enable and configure the peripheral to be connected to the DMA Channel - (except for internal SRAM / FLASH memories: no initialization is + (except for internal SRAM / FLASH memories: no initialization is necessary) please refer to Reference manual for connection between peripherals and DMA requests. - (#) For a given Channel, program the required configuration through the following parameters: - Transfer Direction, Source and Destination data formats, - Circular or Normal mode, Channel Priority level, Source and Destination Increment mode, + (#) For a given Channel, program the required configuration through the following parameters: + Transfer Direction, Source and Destination data formats, + Circular or Normal mode, Channel Priority level, Source and Destination Increment mode, using HAL_DMA_Init() function. - (#) Use HAL_DMA_GetState() function to return the DMA state and HAL_DMA_GetError() in case of error + (#) Use HAL_DMA_GetState() function to return the DMA state and HAL_DMA_GetError() in case of error detection. - + (#) Use HAL_DMA_Abort() function to abort the current transfer - + -@- In Memory-to-Memory transfer mode, Circular mode is not allowed. *** Polling mode IO operation *** - ================================= - [..] - (+) Use HAL_DMA_Start() to start DMA transfer after the configuration of Source + ================================= + [..] + (+) Use HAL_DMA_Start() to start DMA transfer after the configuration of Source address and destination address and the Length of data to be transferred - (+) Use HAL_DMA_PollForTransfer() to poll for the end of current transfer, in this + (+) Use HAL_DMA_PollForTransfer() to poll for the end of current transfer, in this case a fixed Timeout can be configured by User depending from his application. - *** Interrupt mode IO operation *** - =================================== + *** Interrupt mode IO operation *** + =================================== [..] (+) Configure the DMA interrupt priority using HAL_NVIC_SetPriority() - (+) Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ() - (+) Use HAL_DMA_Start_IT() to start DMA transfer after the configuration of - Source address and destination address and the Length of data to be transferred. - In this case the DMA interrupt is configured + (+) Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ() + (+) Use HAL_DMA_Start_IT() to start DMA transfer after the configuration of + Source address and destination address and the Length of data to be transferred. + In this case the DMA interrupt is configured (+) Use HAL_DMAy_Channelx_IRQHandler() called under DMA_IRQHandler() Interrupt subroutine - (+) At the end of data transfer HAL_DMA_IRQHandler() function is executed and user can - add his own function by customization of function pointer XferCpltCallback and - XferErrorCallback (i.e a member of DMA handle structure). + (+) At the end of data transfer HAL_DMA_IRQHandler() function is executed and user can + add his own function by customization of function pointer XferCpltCallback and + XferErrorCallback (i.e a member of DMA handle structure). *** DMA HAL driver macros list *** - ============================================= + ============================================= [..] Below the list of most used macros in DMA HAL driver. @@ -64,10 +64,10 @@ (+) __HAL_DMA_CLEAR_FLAG: Clear the DMA Channel pending flags. (+) __HAL_DMA_ENABLE_IT: Enable the specified DMA Channel interrupts. (+) __HAL_DMA_DISABLE_IT: Disable the specified DMA Channel interrupts. - (+) __HAL_DMA_GET_IT_SOURCE: Check whether the specified DMA Channel interrupt has occurred or not. + (+) __HAL_DMA_GET_IT_SOURCE: Check whether the specified DMA Channel interrupt has occurred or not. - [..] - (@) You can refer to the DMA HAL driver header file for more useful macros + [..] + (@) You can refer to the DMA HAL driver header file for more useful macros @endverbatim ****************************************************************************** @@ -98,7 +98,7 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** - */ + */ /* Includes ------------------------------------------------------------------*/ #include "stm32f1xx_hal.h" @@ -142,41 +142,41 @@ static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t */ /** @defgroup DMA_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and de-initialization functions + * @brief Initialization and de-initialization functions * -@verbatim +@verbatim =============================================================================== ##### Initialization and de-initialization functions ##### - =============================================================================== + =============================================================================== [..] This section provides functions allowing to initialize the DMA Channel source - and destination addresses, incrementation and data sizes, transfer direction, + and destination addresses, incrementation and data sizes, transfer direction, circular/normal mode selection, memory-to-memory mode selection and Channel priority value. [..] The HAL_DMA_Init() function follows the DMA configuration procedures as described in - reference manual. + reference manual. @endverbatim * @{ */ - + /** * @brief Initializes the DMA according to the specified * parameters in the DMA_InitTypeDef and create the associated handle. * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA Channel. + * the configuration information for the specified DMA Channel. * @retval HAL status */ HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma) -{ +{ uint32_t tmp = 0; - + /* Check the DMA handle allocation */ if(hdma == NULL) { return HAL_ERROR; } - + /* Check the parameters */ assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance)); assert_param(IS_DMA_DIRECTION(hdma->Init.Direction)); @@ -186,24 +186,24 @@ HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma) assert_param(IS_DMA_MEMORY_DATA_SIZE(hdma->Init.MemDataAlignment)); assert_param(IS_DMA_MODE(hdma->Init.Mode)); assert_param(IS_DMA_PRIORITY(hdma->Init.Priority)); - + if(hdma->State == HAL_DMA_STATE_RESET) - { + { /* Allocate lock resource and initialize it */ hdma->Lock = HAL_UNLOCKED; } - + /* Change DMA peripheral state */ hdma->State = HAL_DMA_STATE_BUSY; /* Get the CR register value */ tmp = hdma->Instance->CCR; - + /* Clear PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR bits */ tmp &= ((uint32_t)~(DMA_CCR_PL | DMA_CCR_MSIZE | DMA_CCR_PSIZE | \ DMA_CCR_MINC | DMA_CCR_PINC | DMA_CCR_CIRC | \ DMA_CCR_DIR)); - + /* Prepare the DMA Channel configuration */ tmp |= hdma->Init.Direction | hdma->Init.PeriphInc | hdma->Init.MemInc | @@ -211,21 +211,21 @@ HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma) hdma->Init.Mode | hdma->Init.Priority; /* Write to DMA Channel CR register */ - hdma->Instance->CCR = tmp; - + hdma->Instance->CCR = tmp; + /* Initialise the error code */ hdma->ErrorCode = HAL_DMA_ERROR_NONE; /* Initialize the DMA state*/ hdma->State = HAL_DMA_STATE_READY; - + return HAL_OK; } /** - * @brief DeInitializes the DMA peripheral + * @brief DeInitializes the DMA peripheral * @param hdma: pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA Channel. + * the configuration information for the specified DMA Channel. * @retval HAL status */ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) @@ -235,7 +235,7 @@ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) { return HAL_ERROR; } - + /* Check the parameters */ assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance)); @@ -247,16 +247,16 @@ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) /* Disable the selected DMA Channelx */ __HAL_DMA_DISABLE(hdma); - + /* Reset DMA Channel control register */ hdma->Instance->CCR = 0; - + /* Reset DMA Channel Number of Data to Transfer register */ hdma->Instance->CNDTR = 0; - + /* Reset DMA Channel peripheral address register */ hdma->Instance->CPAR = 0; - + /* Reset DMA Channel memory address register */ hdma->Instance->CMAR = 0; @@ -264,7 +264,7 @@ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); - + /* Initialize the error code */ hdma->ErrorCode = HAL_DMA_ERROR_NONE; @@ -281,20 +281,20 @@ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) * @} */ -/** @defgroup DMA_Exported_Functions_Group2 Input and Output operation functions - * @brief I/O operation functions +/** @defgroup DMA_Exported_Functions_Group2 Input and Output operation functions + * @brief I/O operation functions * -@verbatim +@verbatim =============================================================================== ##### IO operation functions ##### - =============================================================================== + =============================================================================== [..] This section provides functions allowing to: (+) Configure the source, destination address and data length and Start DMA transfer - (+) Configure the source, destination address and data length and + (+) Configure the source, destination address and data length and Start DMA transfer with interrupt (+) Abort DMA transfer (+) Poll for transfer complete - (+) Handle DMA interrupt request + (+) Handle DMA interrupt request @endverbatim * @{ @@ -303,7 +303,7 @@ HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) /** * @brief Starts the DMA Transfer. * @param hdma : pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA Channel. + * the configuration information for the specified DMA Channel. * @param SrcAddress: The source memory Buffer address * @param DstAddress: The destination memory Buffer address * @param DataLength: The length of data to be transferred from source to destination @@ -319,23 +319,23 @@ HAL_StatusTypeDef HAL_DMA_Start(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, ui /* Check the parameters */ assert_param(IS_DMA_BUFFER_SIZE(DataLength)); - + /* Disable the peripheral */ __HAL_DMA_DISABLE(hdma); - + /* Configure the source, destination address and the data length */ DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); /* Enable the Peripheral */ __HAL_DMA_ENABLE(hdma); - return HAL_OK; + return HAL_OK; } /** * @brief Start the DMA Transfer with interrupt enabled. * @param hdma: pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA Channel. + * the configuration information for the specified DMA Channel. * @param SrcAddress: The source memory Buffer address * @param DstAddress: The destination memory Buffer address * @param DataLength: The length of data to be transferred from source to destination @@ -351,50 +351,50 @@ HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, /* Check the parameters */ assert_param(IS_DMA_BUFFER_SIZE(DataLength)); - + /* Disable the peripheral */ __HAL_DMA_DISABLE(hdma); - + /* Configure the source, destination address and the data length */ DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); - + /* Enable the transfer complete interrupt */ __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TC); /* Enable the Half transfer complete interrupt */ - __HAL_DMA_ENABLE_IT(hdma, DMA_IT_HT); + __HAL_DMA_ENABLE_IT(hdma, DMA_IT_HT); /* Enable the transfer Error interrupt */ __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TE); - + /* Enable the Peripheral */ __HAL_DMA_ENABLE(hdma); - + return HAL_OK; -} +} /** * @brief Aborts the DMA Transfer. * @param hdma : pointer to a DMA_HandleTypeDef structure that contains * the configuration information for the specified DMA Channel. - * - * @note After disabling a DMA Channel, a check for wait until the DMA Channel is - * effectively disabled is added. If a Channel is disabled + * + * @note After disabling a DMA Channel, a check for wait until the DMA Channel is + * effectively disabled is added. If a Channel is disabled * while a data transfer is ongoing, the current data will be transferred * and the Channel will be effectively disabled only after the transfer of - * this single data is finished. + * this single data is finished. * @retval HAL status */ HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma) { uint32_t tickstart = 0x00; - + /* Disable the channel */ __HAL_DMA_DISABLE(hdma); /* Get tick */ tickstart = HAL_GetTick(); - + /* Check if the DMA Channel is effectively disabled */ while((hdma->Instance->CCR & DMA_CCR_EN) != 0) { @@ -415,10 +415,10 @@ HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma) } /* Change the DMA state */ hdma->State = HAL_DMA_STATE_READY; - + /* Process Unlocked */ __HAL_UNLOCK(hdma); - + return HAL_OK; } @@ -426,7 +426,7 @@ HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma) * @brief Polling for transfer complete. * @param hdma: pointer to a DMA_HandleTypeDef structure that contains * the configuration information for the specified DMA Channel. - * @param CompleteLevel: Specifies the DMA level complete. + * @param CompleteLevel: Specifies the DMA level complete. * @param Timeout: Timeout duration. * @retval HAL status */ @@ -434,7 +434,7 @@ HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t Comp { uint32_t temp; uint32_t tickstart = 0x00; - + /* Get the level transfer complete flag */ if(CompleteLevel == HAL_DMA_FULL_TRANSFER) { @@ -453,19 +453,19 @@ HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t Comp while(__HAL_DMA_GET_FLAG(hdma, temp) == RESET) { if((__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET)) - { + { /* Clear the transfer error flags */ __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); - + /* Update error code */ SET_BIT(hdma->ErrorCode, HAL_DMA_ERROR_TE); /* Change the DMA state */ hdma->State= HAL_DMA_STATE_ERROR; - + /* Process Unlocked */ __HAL_UNLOCK(hdma); - + return HAL_ERROR; } /* Check for the Timeout */ @@ -475,13 +475,13 @@ HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t Comp { /* Update error code */ SET_BIT(hdma->ErrorCode, HAL_DMA_ERROR_TIMEOUT); - + /* Change the DMA state */ hdma->State = HAL_DMA_STATE_TIMEOUT; /* Process Unlocked */ __HAL_UNLOCK(hdma); - + return HAL_TIMEOUT; } } @@ -492,21 +492,21 @@ HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t Comp /* Clear the transfer complete flag */ __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); - /* The selected Channelx EN bit is cleared (DMA is disabled and + /* The selected Channelx EN bit is cleared (DMA is disabled and all transfers are complete) */ hdma->State = HAL_DMA_STATE_READY; } else - { + { /* Clear the half transfer complete flag */ __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); - - /* The selected Channelx EN bit is cleared (DMA is disabled and + + /* The selected Channelx EN bit is cleared (DMA is disabled and all transfers of half buffer are complete) */ hdma->State = HAL_DMA_STATE_READY_HALF; } - + /* Process unlocked */ __HAL_UNLOCK(hdma); @@ -516,7 +516,7 @@ HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t Comp /** * @brief Handles DMA interrupt request. * @param hdma: pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA Channel. + * the configuration information for the specified DMA Channel. * @retval None */ void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) @@ -528,19 +528,19 @@ void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) { /* Disable the transfer error interrupt */ __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TE); - + /* Clear the transfer error flag */ __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); - + /* Update error code */ SET_BIT(hdma->ErrorCode, HAL_DMA_ERROR_TE); - + /* Change the DMA state */ hdma->State = HAL_DMA_STATE_ERROR; - + /* Process Unlocked */ - __HAL_UNLOCK(hdma); - + __HAL_UNLOCK(hdma); + if (hdma->XferErrorCallback != NULL) { /* Transfer error callback */ @@ -553,7 +553,7 @@ void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)) != RESET) { if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_HT) != RESET) - { + { /* Disable the half transfer interrupt if the DMA mode is not CIRCULAR */ if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0) { @@ -573,7 +573,7 @@ void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) } } } - + /* Transfer Complete Interrupt management ***********************************/ if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)) != RESET) { @@ -586,18 +586,18 @@ void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) } /* Clear the transfer complete flag */ __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); - + /* Update error code */ SET_BIT(hdma->ErrorCode, HAL_DMA_ERROR_NONE); /* Change the DMA state */ hdma->State = HAL_DMA_STATE_READY; - + /* Process Unlocked */ __HAL_UNLOCK(hdma); - + if(hdma->XferCpltCallback != NULL) - { + { /* Transfer complete callback */ hdma->XferCpltCallback(hdma); } @@ -610,9 +610,9 @@ void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) */ /** @defgroup DMA_Exported_Functions_Group3 Peripheral State functions - * @brief Peripheral State functions + * @brief Peripheral State functions * -@verbatim +@verbatim =============================================================================== ##### State and Errors functions ##### =============================================================================== @@ -628,7 +628,7 @@ void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) /** * @brief Returns the DMA state. * @param hdma: pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA Channel. + * the configuration information for the specified DMA Channel. * @retval HAL state */ HAL_DMA_StateTypeDef HAL_DMA_GetState(DMA_HandleTypeDef *hdma) @@ -662,7 +662,7 @@ uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma) /** * @brief Sets the DMA Transfer parameter. * @param hdma: pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA Channel. + * the configuration information for the specified DMA Channel. * @param SrcAddress: The source memory Buffer address * @param DstAddress: The destination memory Buffer address * @param DataLength: The length of data to be transferred from source to destination @@ -672,13 +672,13 @@ static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t { /* Configure DMA Channel data length */ hdma->Instance->CNDTR = DataLength; - + /* Peripheral to Memory */ if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH) { /* Configure DMA Channel destination address */ hdma->Instance->CPAR = DstAddress; - + /* Configure DMA Channel source address */ hdma->Instance->CMAR = SrcAddress; } @@ -687,7 +687,7 @@ static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t { /* Configure DMA Channel source address */ hdma->Instance->CPAR = SrcAddress; - + /* Configure DMA Channel destination address */ hdma->Instance->CMAR = DstAddress; } |