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targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_dma.c@636:b0d178e9fa10, 2016-07-07 (annotated)
- Committer:
- lzbpli
- Date:
- Thu Jul 07 06:48:59 2016 +0000
- Revision:
- 636:b0d178e9fa10
- Parent:
- 634:ac7d6880524d
l053
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 330:c80ac197fa6a | 1 | /** |
| mbed_official | 330:c80ac197fa6a | 2 | ****************************************************************************** |
| mbed_official | 330:c80ac197fa6a | 3 | * @file stm32f3xx_hal_dma.c |
| mbed_official | 330:c80ac197fa6a | 4 | * @author MCD Application Team |
| mbed_official | 634:ac7d6880524d | 5 | * @version V1.1.0 |
| mbed_official | 634:ac7d6880524d | 6 | * @date 12-Sept-2014 |
| mbed_official | 330:c80ac197fa6a | 7 | * @brief DMA HAL module driver. |
| mbed_official | 330:c80ac197fa6a | 8 | * |
| mbed_official | 330:c80ac197fa6a | 9 | * This file provides firmware functions to manage the following |
| mbed_official | 330:c80ac197fa6a | 10 | * functionalities of the Direct Memory Access (DMA) peripheral: |
| mbed_official | 330:c80ac197fa6a | 11 | * + Initialization and de-initialization functions |
| mbed_official | 330:c80ac197fa6a | 12 | * + IO operation functions |
| mbed_official | 330:c80ac197fa6a | 13 | * + Peripheral State and errors functions |
| mbed_official | 330:c80ac197fa6a | 14 | @verbatim |
| mbed_official | 330:c80ac197fa6a | 15 | ============================================================================== |
| mbed_official | 330:c80ac197fa6a | 16 | ##### How to use this driver ##### |
| mbed_official | 330:c80ac197fa6a | 17 | ============================================================================== |
| mbed_official | 330:c80ac197fa6a | 18 | [..] |
| mbed_official | 330:c80ac197fa6a | 19 | (#) Enable and configure the peripheral to be connected to the DMA Channel |
| mbed_official | 330:c80ac197fa6a | 20 | (except for internal SRAM / FLASH memories: no initialization is |
| mbed_official | 330:c80ac197fa6a | 21 | necessary) please refer to Reference manual for connection between peripherals |
| mbed_official | 330:c80ac197fa6a | 22 | and DMA requests . |
| mbed_official | 330:c80ac197fa6a | 23 | |
| mbed_official | 330:c80ac197fa6a | 24 | (#) For a given Channel, program the required configuration through the following parameters: |
| mbed_official | 330:c80ac197fa6a | 25 | Transfer Direction, Source and Destination data formats, |
| mbed_official | 330:c80ac197fa6a | 26 | Circular, Normal or peripheral flow control mode, Channel Priority level, |
| mbed_official | 330:c80ac197fa6a | 27 | Source and Destination Increment mode, FIFO mode and its Threshold (if needed), |
| mbed_official | 330:c80ac197fa6a | 28 | Burst mode for Source and/or Destination (if needed) using HAL_DMA_Init() function. |
| mbed_official | 330:c80ac197fa6a | 29 | |
| mbed_official | 330:c80ac197fa6a | 30 | *** Polling mode IO operation *** |
| mbed_official | 330:c80ac197fa6a | 31 | ================================= |
| mbed_official | 330:c80ac197fa6a | 32 | [..] |
| mbed_official | 330:c80ac197fa6a | 33 | (+) Use HAL_DMA_Start() to start DMA transfer after the configuration of Source |
| mbed_official | 330:c80ac197fa6a | 34 | address and destination address and the Length of data to be transferred |
| mbed_official | 330:c80ac197fa6a | 35 | (+) Use HAL_DMA_PollForTransfer() to poll for the end of current transfer, in this |
| mbed_official | 330:c80ac197fa6a | 36 | case a fixed Timeout can be configured by User depending from his application. |
| mbed_official | 330:c80ac197fa6a | 37 | |
| mbed_official | 330:c80ac197fa6a | 38 | *** Interrupt mode IO operation *** |
| mbed_official | 330:c80ac197fa6a | 39 | =================================== |
| mbed_official | 330:c80ac197fa6a | 40 | [..] |
| mbed_official | 330:c80ac197fa6a | 41 | (+) Configure the DMA interrupt priority using HAL_NVIC_SetPriority() |
| mbed_official | 330:c80ac197fa6a | 42 | (+) Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ() |
| mbed_official | 330:c80ac197fa6a | 43 | (+) Use HAL_DMA_Start_IT() to start DMA transfer after the configuration of |
| mbed_official | 330:c80ac197fa6a | 44 | Source address and destination address and the Length of data to be transferred. In this |
| mbed_official | 330:c80ac197fa6a | 45 | case the DMA interrupt is configured |
| mbed_official | 330:c80ac197fa6a | 46 | (+) Use HAL_DMA_IRQHandler() called under DMA_IRQHandler() Interrupt subroutine |
| mbed_official | 330:c80ac197fa6a | 47 | (+) At the end of data transfer HAL_DMA_IRQHandler() function is executed and user can |
| mbed_official | 330:c80ac197fa6a | 48 | add his own function by customization of function pointer XferCpltCallback and |
| mbed_official | 330:c80ac197fa6a | 49 | XferErrorCallback (i.e a member of DMA handle structure). |
| mbed_official | 330:c80ac197fa6a | 50 | |
| mbed_official | 330:c80ac197fa6a | 51 | (#) Use HAL_DMA_GetState() function to return the DMA state and HAL_DMA_GetError() in case of error |
| mbed_official | 330:c80ac197fa6a | 52 | detection. |
| mbed_official | 330:c80ac197fa6a | 53 | |
| mbed_official | 330:c80ac197fa6a | 54 | (#) Use HAL_DMA_Abort() function to abort the current transfer |
| mbed_official | 330:c80ac197fa6a | 55 | |
| mbed_official | 330:c80ac197fa6a | 56 | -@- In Memory-to-Memory transfer mode, Circular mode is not allowed. |
| mbed_official | 330:c80ac197fa6a | 57 | |
| mbed_official | 330:c80ac197fa6a | 58 | *** DMA HAL driver macros list *** |
| mbed_official | 330:c80ac197fa6a | 59 | ============================================= |
| mbed_official | 330:c80ac197fa6a | 60 | [..] |
| mbed_official | 330:c80ac197fa6a | 61 | Below the list of most used macros in DMA HAL driver. |
| mbed_official | 330:c80ac197fa6a | 62 | |
| mbed_official | 330:c80ac197fa6a | 63 | (+) __HAL_DMA_ENABLE: Enable the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 64 | (+) __HAL_DMA_DISABLE: Disable the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 65 | (+) __HAL_DMA_GET_FLAG: Get the DMA Channel pending flags. |
| mbed_official | 330:c80ac197fa6a | 66 | (+) __HAL_DMA_CLEAR_FLAG: Clear the DMA Channel pending flags. |
| mbed_official | 330:c80ac197fa6a | 67 | (+) __HAL_DMA_ENABLE_IT: Enable the specified DMA Channel interrupts. |
| mbed_official | 330:c80ac197fa6a | 68 | (+) __HAL_DMA_DISABLE_IT: Disable the specified DMA Channel interrupts. |
| mbed_official | 330:c80ac197fa6a | 69 | (+) __HAL_DMA_IT_STATUS: Check whether the specified DMA Channel interrupt has occurred or not. |
| mbed_official | 330:c80ac197fa6a | 70 | |
| mbed_official | 330:c80ac197fa6a | 71 | [..] |
| mbed_official | 330:c80ac197fa6a | 72 | (@) You can refer to the DMA HAL driver header file for more useful macros |
| mbed_official | 330:c80ac197fa6a | 73 | |
| mbed_official | 330:c80ac197fa6a | 74 | @endverbatim |
| mbed_official | 330:c80ac197fa6a | 75 | ****************************************************************************** |
| mbed_official | 330:c80ac197fa6a | 76 | * @attention |
| mbed_official | 330:c80ac197fa6a | 77 | * |
| mbed_official | 634:ac7d6880524d | 78 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
| mbed_official | 330:c80ac197fa6a | 79 | * |
| mbed_official | 330:c80ac197fa6a | 80 | * Redistribution and use in source and binary forms, with or without modification, |
| mbed_official | 330:c80ac197fa6a | 81 | * are permitted provided that the following conditions are met: |
| mbed_official | 330:c80ac197fa6a | 82 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 330:c80ac197fa6a | 83 | * this list of conditions and the following disclaimer. |
| mbed_official | 330:c80ac197fa6a | 84 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 330:c80ac197fa6a | 85 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 330:c80ac197fa6a | 86 | * and/or other materials provided with the distribution. |
| mbed_official | 330:c80ac197fa6a | 87 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 330:c80ac197fa6a | 88 | * may be used to endorse or promote products derived from this software |
| mbed_official | 330:c80ac197fa6a | 89 | * without specific prior written permission. |
| mbed_official | 330:c80ac197fa6a | 90 | * |
| mbed_official | 330:c80ac197fa6a | 91 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 330:c80ac197fa6a | 92 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 330:c80ac197fa6a | 93 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 330:c80ac197fa6a | 94 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 330:c80ac197fa6a | 95 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 330:c80ac197fa6a | 96 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 330:c80ac197fa6a | 97 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 330:c80ac197fa6a | 98 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 330:c80ac197fa6a | 99 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 330:c80ac197fa6a | 100 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 330:c80ac197fa6a | 101 | * |
| mbed_official | 330:c80ac197fa6a | 102 | ****************************************************************************** |
| mbed_official | 330:c80ac197fa6a | 103 | */ |
| mbed_official | 330:c80ac197fa6a | 104 | |
| mbed_official | 330:c80ac197fa6a | 105 | /* Includes ------------------------------------------------------------------*/ |
| mbed_official | 330:c80ac197fa6a | 106 | #include "stm32f3xx_hal.h" |
| mbed_official | 330:c80ac197fa6a | 107 | |
| mbed_official | 330:c80ac197fa6a | 108 | /** @addtogroup STM32F3xx_HAL_Driver |
| mbed_official | 330:c80ac197fa6a | 109 | * @{ |
| mbed_official | 330:c80ac197fa6a | 110 | */ |
| mbed_official | 330:c80ac197fa6a | 111 | |
| mbed_official | 330:c80ac197fa6a | 112 | /** @defgroup DMA DMA HAL module driver |
| mbed_official | 330:c80ac197fa6a | 113 | * @brief DMA HAL module driver |
| mbed_official | 330:c80ac197fa6a | 114 | * @{ |
| mbed_official | 330:c80ac197fa6a | 115 | */ |
| mbed_official | 330:c80ac197fa6a | 116 | |
| mbed_official | 330:c80ac197fa6a | 117 | #ifdef HAL_DMA_MODULE_ENABLED |
| mbed_official | 330:c80ac197fa6a | 118 | |
| mbed_official | 330:c80ac197fa6a | 119 | /* Private typedef -----------------------------------------------------------*/ |
| mbed_official | 330:c80ac197fa6a | 120 | /* Private define ------------------------------------------------------------*/ |
| mbed_official | 330:c80ac197fa6a | 121 | /** @defgroup DMA_Private_Defines DMA Private Define |
| mbed_official | 330:c80ac197fa6a | 122 | * @{ |
| mbed_official | 330:c80ac197fa6a | 123 | */ |
| mbed_official | 330:c80ac197fa6a | 124 | #define HAL_TIMEOUT_DMA_ABORT ((uint32_t)1000) /* 1s */ |
| mbed_official | 330:c80ac197fa6a | 125 | /** |
| mbed_official | 330:c80ac197fa6a | 126 | * @} |
| mbed_official | 330:c80ac197fa6a | 127 | */ |
| mbed_official | 330:c80ac197fa6a | 128 | |
| mbed_official | 330:c80ac197fa6a | 129 | /* Private macro -------------------------------------------------------------*/ |
| mbed_official | 330:c80ac197fa6a | 130 | /* Private variables ---------------------------------------------------------*/ |
| mbed_official | 330:c80ac197fa6a | 131 | /* Private function prototypes -----------------------------------------------*/ |
| mbed_official | 330:c80ac197fa6a | 132 | /** @defgroup DMA_Private_Functions DMA Private Functions |
| mbed_official | 330:c80ac197fa6a | 133 | * @{ |
| mbed_official | 330:c80ac197fa6a | 134 | */ |
| mbed_official | 330:c80ac197fa6a | 135 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); |
| mbed_official | 330:c80ac197fa6a | 136 | /** |
| mbed_official | 330:c80ac197fa6a | 137 | * @} |
| mbed_official | 330:c80ac197fa6a | 138 | */ |
| mbed_official | 330:c80ac197fa6a | 139 | |
| mbed_official | 330:c80ac197fa6a | 140 | /* Exported functions ---------------------------------------------------------*/ |
| mbed_official | 330:c80ac197fa6a | 141 | /** @defgroup DMA_Exported_Functions DMA Exported Functions |
| mbed_official | 330:c80ac197fa6a | 142 | * @{ |
| mbed_official | 330:c80ac197fa6a | 143 | */ |
| mbed_official | 330:c80ac197fa6a | 144 | |
| mbed_official | 330:c80ac197fa6a | 145 | /** @defgroup DMA_Exported_Functions_Group1 Initialization and de-initialization functions |
| mbed_official | 330:c80ac197fa6a | 146 | * @brief Initialization and de-initialization functions |
| mbed_official | 330:c80ac197fa6a | 147 | * |
| mbed_official | 330:c80ac197fa6a | 148 | @verbatim |
| mbed_official | 330:c80ac197fa6a | 149 | =============================================================================== |
| mbed_official | 330:c80ac197fa6a | 150 | ##### Initialization and de-initialization functions ##### |
| mbed_official | 330:c80ac197fa6a | 151 | =============================================================================== |
| mbed_official | 330:c80ac197fa6a | 152 | [..] |
| mbed_official | 330:c80ac197fa6a | 153 | This section provides functions allowing to initialize the DMA Channel source |
| mbed_official | 330:c80ac197fa6a | 154 | and destination addresses, incrementation and data sizes, transfer direction, |
| mbed_official | 330:c80ac197fa6a | 155 | circular/normal mode selection, memory-to-memory mode selection and Channel priority value. |
| mbed_official | 330:c80ac197fa6a | 156 | [..] |
| mbed_official | 330:c80ac197fa6a | 157 | The HAL_DMA_Init() function follows the DMA configuration procedures as described in |
| mbed_official | 330:c80ac197fa6a | 158 | reference manual. |
| mbed_official | 330:c80ac197fa6a | 159 | |
| mbed_official | 330:c80ac197fa6a | 160 | @endverbatim |
| mbed_official | 330:c80ac197fa6a | 161 | * @{ |
| mbed_official | 330:c80ac197fa6a | 162 | */ |
| mbed_official | 330:c80ac197fa6a | 163 | |
| mbed_official | 330:c80ac197fa6a | 164 | /** |
| mbed_official | 330:c80ac197fa6a | 165 | * @brief Initializes the DMA according to the specified |
| mbed_official | 330:c80ac197fa6a | 166 | * parameters in the DMA_InitTypeDef and create the associated handle. |
| mbed_official | 330:c80ac197fa6a | 167 | * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 168 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 169 | * @retval HAL status |
| mbed_official | 330:c80ac197fa6a | 170 | */ |
| mbed_official | 330:c80ac197fa6a | 171 | HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma) |
| mbed_official | 330:c80ac197fa6a | 172 | { |
| mbed_official | 330:c80ac197fa6a | 173 | uint32_t tmp = 0; |
| mbed_official | 330:c80ac197fa6a | 174 | |
| mbed_official | 330:c80ac197fa6a | 175 | /* Check the DMA handle allocation */ |
| mbed_official | 634:ac7d6880524d | 176 | if(hdma == HAL_NULL) |
| mbed_official | 330:c80ac197fa6a | 177 | { |
| mbed_official | 330:c80ac197fa6a | 178 | return HAL_ERROR; |
| mbed_official | 330:c80ac197fa6a | 179 | } |
| mbed_official | 330:c80ac197fa6a | 180 | |
| mbed_official | 330:c80ac197fa6a | 181 | /* Check the parameters */ |
| mbed_official | 330:c80ac197fa6a | 182 | assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance)); |
| mbed_official | 330:c80ac197fa6a | 183 | assert_param(IS_DMA_DIRECTION(hdma->Init.Direction)); |
| mbed_official | 330:c80ac197fa6a | 184 | assert_param(IS_DMA_PERIPHERAL_INC_STATE(hdma->Init.PeriphInc)); |
| mbed_official | 330:c80ac197fa6a | 185 | assert_param(IS_DMA_MEMORY_INC_STATE(hdma->Init.MemInc)); |
| mbed_official | 330:c80ac197fa6a | 186 | assert_param(IS_DMA_PERIPHERAL_DATA_SIZE(hdma->Init.PeriphDataAlignment)); |
| mbed_official | 330:c80ac197fa6a | 187 | assert_param(IS_DMA_MEMORY_DATA_SIZE(hdma->Init.MemDataAlignment)); |
| mbed_official | 330:c80ac197fa6a | 188 | assert_param(IS_DMA_MODE(hdma->Init.Mode)); |
| mbed_official | 330:c80ac197fa6a | 189 | assert_param(IS_DMA_PRIORITY(hdma->Init.Priority)); |
| mbed_official | 330:c80ac197fa6a | 190 | |
| mbed_official | 330:c80ac197fa6a | 191 | /* Change DMA peripheral state */ |
| mbed_official | 330:c80ac197fa6a | 192 | hdma->State = HAL_DMA_STATE_BUSY; |
| mbed_official | 330:c80ac197fa6a | 193 | |
| mbed_official | 330:c80ac197fa6a | 194 | /* Get the CR register value */ |
| mbed_official | 330:c80ac197fa6a | 195 | tmp = hdma->Instance->CCR; |
| mbed_official | 330:c80ac197fa6a | 196 | |
| mbed_official | 330:c80ac197fa6a | 197 | /* Clear PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR bits */ |
| mbed_official | 330:c80ac197fa6a | 198 | tmp &= ((uint32_t)~(DMA_CCR_PL | DMA_CCR_MSIZE | DMA_CCR_PSIZE | \ |
| mbed_official | 330:c80ac197fa6a | 199 | DMA_CCR_MINC | DMA_CCR_PINC | DMA_CCR_CIRC | \ |
| mbed_official | 330:c80ac197fa6a | 200 | DMA_CCR_DIR)); |
| mbed_official | 330:c80ac197fa6a | 201 | |
| mbed_official | 330:c80ac197fa6a | 202 | /* Prepare the DMA Channel configuration */ |
| mbed_official | 330:c80ac197fa6a | 203 | tmp |= hdma->Init.Direction | |
| mbed_official | 330:c80ac197fa6a | 204 | hdma->Init.PeriphInc | hdma->Init.MemInc | |
| mbed_official | 330:c80ac197fa6a | 205 | hdma->Init.PeriphDataAlignment | hdma->Init.MemDataAlignment | |
| mbed_official | 330:c80ac197fa6a | 206 | hdma->Init.Mode | hdma->Init.Priority; |
| mbed_official | 330:c80ac197fa6a | 207 | |
| mbed_official | 330:c80ac197fa6a | 208 | /* Write to DMA Channel CR register */ |
| mbed_official | 330:c80ac197fa6a | 209 | hdma->Instance->CCR = tmp; |
| mbed_official | 330:c80ac197fa6a | 210 | |
| mbed_official | 330:c80ac197fa6a | 211 | /* Initialise the error code */ |
| mbed_official | 330:c80ac197fa6a | 212 | hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
| mbed_official | 330:c80ac197fa6a | 213 | |
| mbed_official | 330:c80ac197fa6a | 214 | /* Initialize the DMA state*/ |
| mbed_official | 330:c80ac197fa6a | 215 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 330:c80ac197fa6a | 216 | |
| mbed_official | 330:c80ac197fa6a | 217 | return HAL_OK; |
| mbed_official | 330:c80ac197fa6a | 218 | } |
| mbed_official | 330:c80ac197fa6a | 219 | |
| mbed_official | 330:c80ac197fa6a | 220 | /** |
| mbed_official | 330:c80ac197fa6a | 221 | * @brief DeInitializes the DMA peripheral |
| mbed_official | 330:c80ac197fa6a | 222 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 223 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 224 | * @retval HAL status |
| mbed_official | 330:c80ac197fa6a | 225 | */ |
| mbed_official | 330:c80ac197fa6a | 226 | HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) |
| mbed_official | 330:c80ac197fa6a | 227 | { |
| mbed_official | 330:c80ac197fa6a | 228 | /* Check the DMA handle allocation */ |
| mbed_official | 634:ac7d6880524d | 229 | if(hdma == HAL_NULL) |
| mbed_official | 330:c80ac197fa6a | 230 | { |
| mbed_official | 330:c80ac197fa6a | 231 | return HAL_ERROR; |
| mbed_official | 330:c80ac197fa6a | 232 | } |
| mbed_official | 330:c80ac197fa6a | 233 | |
| mbed_official | 330:c80ac197fa6a | 234 | /* Check the parameters */ |
| mbed_official | 330:c80ac197fa6a | 235 | assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance)); |
| mbed_official | 330:c80ac197fa6a | 236 | |
| mbed_official | 330:c80ac197fa6a | 237 | /* Check the DMA peripheral state */ |
| mbed_official | 330:c80ac197fa6a | 238 | if(hdma->State == HAL_DMA_STATE_BUSY) |
| mbed_official | 330:c80ac197fa6a | 239 | { |
| mbed_official | 330:c80ac197fa6a | 240 | return HAL_ERROR; |
| mbed_official | 330:c80ac197fa6a | 241 | } |
| mbed_official | 330:c80ac197fa6a | 242 | |
| mbed_official | 330:c80ac197fa6a | 243 | /* Disable the selected DMA Channelx */ |
| mbed_official | 330:c80ac197fa6a | 244 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 330:c80ac197fa6a | 245 | |
| mbed_official | 330:c80ac197fa6a | 246 | /* Reset DMA Channel control register */ |
| mbed_official | 330:c80ac197fa6a | 247 | hdma->Instance->CCR = 0; |
| mbed_official | 330:c80ac197fa6a | 248 | |
| mbed_official | 330:c80ac197fa6a | 249 | /* Reset DMA Channel Number of Data to Transfer register */ |
| mbed_official | 330:c80ac197fa6a | 250 | hdma->Instance->CNDTR = 0; |
| mbed_official | 330:c80ac197fa6a | 251 | |
| mbed_official | 330:c80ac197fa6a | 252 | /* Reset DMA Channel peripheral address register */ |
| mbed_official | 330:c80ac197fa6a | 253 | hdma->Instance->CPAR = 0; |
| mbed_official | 330:c80ac197fa6a | 254 | |
| mbed_official | 330:c80ac197fa6a | 255 | /* Reset DMA Channel memory address register */ |
| mbed_official | 330:c80ac197fa6a | 256 | hdma->Instance->CMAR = 0; |
| mbed_official | 330:c80ac197fa6a | 257 | |
| mbed_official | 330:c80ac197fa6a | 258 | /* Clear all flags */ |
| mbed_official | 330:c80ac197fa6a | 259 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 260 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 261 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 262 | |
| mbed_official | 330:c80ac197fa6a | 263 | /* Initialise the error code */ |
| mbed_official | 330:c80ac197fa6a | 264 | hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
| mbed_official | 330:c80ac197fa6a | 265 | |
| mbed_official | 330:c80ac197fa6a | 266 | /* Initialize the DMA state */ |
| mbed_official | 330:c80ac197fa6a | 267 | hdma->State = HAL_DMA_STATE_RESET; |
| mbed_official | 330:c80ac197fa6a | 268 | |
| mbed_official | 330:c80ac197fa6a | 269 | /* Release Lock */ |
| mbed_official | 330:c80ac197fa6a | 270 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 271 | |
| mbed_official | 330:c80ac197fa6a | 272 | return HAL_OK; |
| mbed_official | 330:c80ac197fa6a | 273 | } |
| mbed_official | 330:c80ac197fa6a | 274 | |
| mbed_official | 330:c80ac197fa6a | 275 | /** |
| mbed_official | 330:c80ac197fa6a | 276 | * @} |
| mbed_official | 330:c80ac197fa6a | 277 | */ |
| mbed_official | 330:c80ac197fa6a | 278 | |
| mbed_official | 330:c80ac197fa6a | 279 | /** @defgroup DMA_Exported_Functions_Group2 Input and Output operation functions |
| mbed_official | 330:c80ac197fa6a | 280 | * @brief I/O operation functions |
| mbed_official | 330:c80ac197fa6a | 281 | * |
| mbed_official | 330:c80ac197fa6a | 282 | @verbatim |
| mbed_official | 330:c80ac197fa6a | 283 | =============================================================================== |
| mbed_official | 330:c80ac197fa6a | 284 | ##### IO operation functions ##### |
| mbed_official | 330:c80ac197fa6a | 285 | =============================================================================== |
| mbed_official | 330:c80ac197fa6a | 286 | [..] This section provides functions allowing to: |
| mbed_official | 330:c80ac197fa6a | 287 | (+) Configure the source, destination address and data length and Start DMA transfer |
| mbed_official | 330:c80ac197fa6a | 288 | (+) Configure the source, destination address and data length and |
| mbed_official | 330:c80ac197fa6a | 289 | Start DMA transfer with interrupt |
| mbed_official | 330:c80ac197fa6a | 290 | (+) Abort DMA transfer |
| mbed_official | 330:c80ac197fa6a | 291 | (+) Poll for transfer complete |
| mbed_official | 330:c80ac197fa6a | 292 | (+) Handle DMA interrupt request |
| mbed_official | 330:c80ac197fa6a | 293 | |
| mbed_official | 330:c80ac197fa6a | 294 | @endverbatim |
| mbed_official | 330:c80ac197fa6a | 295 | * @{ |
| mbed_official | 330:c80ac197fa6a | 296 | */ |
| mbed_official | 330:c80ac197fa6a | 297 | |
| mbed_official | 330:c80ac197fa6a | 298 | /** |
| mbed_official | 330:c80ac197fa6a | 299 | * @brief Starts the DMA Transfer. |
| mbed_official | 330:c80ac197fa6a | 300 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 301 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 302 | * @param SrcAddress: The source memory Buffer address |
| mbed_official | 330:c80ac197fa6a | 303 | * @param DstAddress: The destination memory Buffer address |
| mbed_official | 330:c80ac197fa6a | 304 | * @param DataLength: The length of data to be transferred from source to destination |
| mbed_official | 330:c80ac197fa6a | 305 | * @retval HAL status |
| mbed_official | 330:c80ac197fa6a | 306 | */ |
| mbed_official | 330:c80ac197fa6a | 307 | HAL_StatusTypeDef HAL_DMA_Start(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
| mbed_official | 330:c80ac197fa6a | 308 | { |
| mbed_official | 330:c80ac197fa6a | 309 | /* Process locked */ |
| mbed_official | 330:c80ac197fa6a | 310 | __HAL_LOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 311 | |
| mbed_official | 330:c80ac197fa6a | 312 | /* Change DMA peripheral state */ |
| mbed_official | 330:c80ac197fa6a | 313 | hdma->State = HAL_DMA_STATE_BUSY; |
| mbed_official | 330:c80ac197fa6a | 314 | |
| mbed_official | 330:c80ac197fa6a | 315 | /* Check the parameters */ |
| mbed_official | 330:c80ac197fa6a | 316 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
| mbed_official | 330:c80ac197fa6a | 317 | |
| mbed_official | 330:c80ac197fa6a | 318 | /* Disable the peripheral */ |
| mbed_official | 330:c80ac197fa6a | 319 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 330:c80ac197fa6a | 320 | |
| mbed_official | 330:c80ac197fa6a | 321 | /* Configure the source, destination address and the data length */ |
| mbed_official | 330:c80ac197fa6a | 322 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
| mbed_official | 330:c80ac197fa6a | 323 | |
| mbed_official | 330:c80ac197fa6a | 324 | /* Enable the Peripheral */ |
| mbed_official | 330:c80ac197fa6a | 325 | __HAL_DMA_ENABLE(hdma); |
| mbed_official | 330:c80ac197fa6a | 326 | |
| mbed_official | 330:c80ac197fa6a | 327 | return HAL_OK; |
| mbed_official | 330:c80ac197fa6a | 328 | } |
| mbed_official | 330:c80ac197fa6a | 329 | |
| mbed_official | 330:c80ac197fa6a | 330 | /** |
| mbed_official | 330:c80ac197fa6a | 331 | * @brief Start the DMA Transfer with interrupt enabled. |
| mbed_official | 330:c80ac197fa6a | 332 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 333 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 334 | * @param SrcAddress: The source memory Buffer address |
| mbed_official | 330:c80ac197fa6a | 335 | * @param DstAddress: The destination memory Buffer address |
| mbed_official | 330:c80ac197fa6a | 336 | * @param DataLength: The length of data to be transferred from source to destination |
| mbed_official | 330:c80ac197fa6a | 337 | * @retval HAL status |
| mbed_official | 330:c80ac197fa6a | 338 | */ |
| mbed_official | 330:c80ac197fa6a | 339 | HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
| mbed_official | 330:c80ac197fa6a | 340 | { |
| mbed_official | 330:c80ac197fa6a | 341 | /* Process locked */ |
| mbed_official | 330:c80ac197fa6a | 342 | __HAL_LOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 343 | |
| mbed_official | 330:c80ac197fa6a | 344 | /* Change DMA peripheral state */ |
| mbed_official | 330:c80ac197fa6a | 345 | hdma->State = HAL_DMA_STATE_BUSY; |
| mbed_official | 330:c80ac197fa6a | 346 | |
| mbed_official | 330:c80ac197fa6a | 347 | /* Check the parameters */ |
| mbed_official | 330:c80ac197fa6a | 348 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
| mbed_official | 330:c80ac197fa6a | 349 | |
| mbed_official | 330:c80ac197fa6a | 350 | /* Disable the peripheral */ |
| mbed_official | 330:c80ac197fa6a | 351 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 330:c80ac197fa6a | 352 | |
| mbed_official | 330:c80ac197fa6a | 353 | /* Configure the source, destination address and the data length */ |
| mbed_official | 330:c80ac197fa6a | 354 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
| mbed_official | 330:c80ac197fa6a | 355 | |
| mbed_official | 330:c80ac197fa6a | 356 | /* Enable the transfer complete interrupt */ |
| mbed_official | 330:c80ac197fa6a | 357 | __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TC); |
| mbed_official | 330:c80ac197fa6a | 358 | |
| mbed_official | 330:c80ac197fa6a | 359 | /* Enable the Half transfer complete interrupt */ |
| mbed_official | 330:c80ac197fa6a | 360 | __HAL_DMA_ENABLE_IT(hdma, DMA_IT_HT); |
| mbed_official | 330:c80ac197fa6a | 361 | |
| mbed_official | 330:c80ac197fa6a | 362 | /* Enable the transfer Error interrupt */ |
| mbed_official | 330:c80ac197fa6a | 363 | __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TE); |
| mbed_official | 330:c80ac197fa6a | 364 | |
| mbed_official | 330:c80ac197fa6a | 365 | /* Enable the Peripheral */ |
| mbed_official | 330:c80ac197fa6a | 366 | __HAL_DMA_ENABLE(hdma); |
| mbed_official | 330:c80ac197fa6a | 367 | |
| mbed_official | 330:c80ac197fa6a | 368 | return HAL_OK; |
| mbed_official | 330:c80ac197fa6a | 369 | } |
| mbed_official | 330:c80ac197fa6a | 370 | |
| mbed_official | 330:c80ac197fa6a | 371 | /** |
| mbed_official | 330:c80ac197fa6a | 372 | * @brief Aborts the DMA Transfer. |
| mbed_official | 330:c80ac197fa6a | 373 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 374 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 375 | * |
| mbed_official | 330:c80ac197fa6a | 376 | * @note After disabling a DMA Channel, a check for wait until the DMA Channel is |
| mbed_official | 330:c80ac197fa6a | 377 | * effectively disabled is added. If a Channel is disabled |
| mbed_official | 330:c80ac197fa6a | 378 | * while a data transfer is ongoing, the current data will be transferred |
| mbed_official | 330:c80ac197fa6a | 379 | * and the Channel will be effectively disabled only after the transfer of |
| mbed_official | 330:c80ac197fa6a | 380 | * this single data is finished. |
| mbed_official | 330:c80ac197fa6a | 381 | * @retval HAL status |
| mbed_official | 330:c80ac197fa6a | 382 | */ |
| mbed_official | 330:c80ac197fa6a | 383 | HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma) |
| mbed_official | 330:c80ac197fa6a | 384 | { |
| mbed_official | 330:c80ac197fa6a | 385 | uint32_t tickstart = 0x00; |
| mbed_official | 330:c80ac197fa6a | 386 | |
| mbed_official | 330:c80ac197fa6a | 387 | /* Disable the channel */ |
| mbed_official | 330:c80ac197fa6a | 388 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 330:c80ac197fa6a | 389 | |
| mbed_official | 330:c80ac197fa6a | 390 | /* Get timeout */ |
| mbed_official | 330:c80ac197fa6a | 391 | tickstart = HAL_GetTick(); |
| mbed_official | 330:c80ac197fa6a | 392 | |
| mbed_official | 330:c80ac197fa6a | 393 | /* Check if the DMA Channel is effectively disabled */ |
| mbed_official | 330:c80ac197fa6a | 394 | while((hdma->Instance->CCR & DMA_CCR_EN) != 0) |
| mbed_official | 330:c80ac197fa6a | 395 | { |
| mbed_official | 330:c80ac197fa6a | 396 | /* Check for the Timeout */ |
| mbed_official | 330:c80ac197fa6a | 397 | if((HAL_GetTick()-tickstart) > HAL_TIMEOUT_DMA_ABORT) |
| mbed_official | 330:c80ac197fa6a | 398 | { |
| mbed_official | 330:c80ac197fa6a | 399 | /* Update error code */ |
| mbed_official | 330:c80ac197fa6a | 400 | hdma->ErrorCode |= HAL_DMA_ERROR_TIMEOUT; |
| mbed_official | 330:c80ac197fa6a | 401 | |
| mbed_official | 330:c80ac197fa6a | 402 | /* Change the DMA state */ |
| mbed_official | 330:c80ac197fa6a | 403 | hdma->State = HAL_DMA_STATE_TIMEOUT; |
| mbed_official | 330:c80ac197fa6a | 404 | |
| mbed_official | 330:c80ac197fa6a | 405 | /* Process Unlocked */ |
| mbed_official | 330:c80ac197fa6a | 406 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 407 | |
| mbed_official | 330:c80ac197fa6a | 408 | return HAL_TIMEOUT; |
| mbed_official | 330:c80ac197fa6a | 409 | } |
| mbed_official | 330:c80ac197fa6a | 410 | } |
| mbed_official | 330:c80ac197fa6a | 411 | /* Change the DMA state*/ |
| mbed_official | 330:c80ac197fa6a | 412 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 330:c80ac197fa6a | 413 | |
| mbed_official | 330:c80ac197fa6a | 414 | /* Process Unlocked */ |
| mbed_official | 330:c80ac197fa6a | 415 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 416 | |
| mbed_official | 330:c80ac197fa6a | 417 | return HAL_OK; |
| mbed_official | 330:c80ac197fa6a | 418 | } |
| mbed_official | 330:c80ac197fa6a | 419 | |
| mbed_official | 330:c80ac197fa6a | 420 | /** |
| mbed_official | 330:c80ac197fa6a | 421 | * @brief Polling for transfer complete. |
| mbed_official | 330:c80ac197fa6a | 422 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 423 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 424 | * @param CompleteLevel: Specifies the DMA level complete. |
| mbed_official | 330:c80ac197fa6a | 425 | * @param Timeout: Timeout duration. |
| mbed_official | 330:c80ac197fa6a | 426 | * @retval HAL status |
| mbed_official | 330:c80ac197fa6a | 427 | */ |
| mbed_official | 330:c80ac197fa6a | 428 | HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t CompleteLevel, uint32_t Timeout) |
| mbed_official | 330:c80ac197fa6a | 429 | { |
| mbed_official | 330:c80ac197fa6a | 430 | uint32_t temp; |
| mbed_official | 330:c80ac197fa6a | 431 | uint32_t tickstart = 0x00; |
| mbed_official | 330:c80ac197fa6a | 432 | |
| mbed_official | 330:c80ac197fa6a | 433 | /* Get the level transfer complete flag */ |
| mbed_official | 330:c80ac197fa6a | 434 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
| mbed_official | 330:c80ac197fa6a | 435 | { |
| mbed_official | 330:c80ac197fa6a | 436 | /* Transfer Complete flag */ |
| mbed_official | 330:c80ac197fa6a | 437 | temp = __HAL_DMA_GET_TC_FLAG_INDEX(hdma); |
| mbed_official | 330:c80ac197fa6a | 438 | } |
| mbed_official | 330:c80ac197fa6a | 439 | else |
| mbed_official | 330:c80ac197fa6a | 440 | { |
| mbed_official | 330:c80ac197fa6a | 441 | /* Half Transfer Complete flag */ |
| mbed_official | 330:c80ac197fa6a | 442 | temp = __HAL_DMA_GET_HT_FLAG_INDEX(hdma); |
| mbed_official | 330:c80ac197fa6a | 443 | } |
| mbed_official | 330:c80ac197fa6a | 444 | |
| mbed_official | 330:c80ac197fa6a | 445 | /* Get timeout */ |
| mbed_official | 330:c80ac197fa6a | 446 | tickstart = HAL_GetTick(); |
| mbed_official | 330:c80ac197fa6a | 447 | |
| mbed_official | 330:c80ac197fa6a | 448 | while(__HAL_DMA_GET_FLAG(hdma, temp) == RESET) |
| mbed_official | 330:c80ac197fa6a | 449 | { |
| mbed_official | 330:c80ac197fa6a | 450 | if((__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET)) |
| mbed_official | 330:c80ac197fa6a | 451 | { |
| mbed_official | 330:c80ac197fa6a | 452 | /* Clear the transfer error flags */ |
| mbed_official | 330:c80ac197fa6a | 453 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 454 | |
| mbed_official | 330:c80ac197fa6a | 455 | /* Change the DMA state */ |
| mbed_official | 330:c80ac197fa6a | 456 | hdma->State= HAL_DMA_STATE_ERROR; |
| mbed_official | 330:c80ac197fa6a | 457 | |
| mbed_official | 330:c80ac197fa6a | 458 | /* Process Unlocked */ |
| mbed_official | 330:c80ac197fa6a | 459 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 460 | |
| mbed_official | 330:c80ac197fa6a | 461 | return HAL_ERROR; |
| mbed_official | 330:c80ac197fa6a | 462 | } |
| mbed_official | 330:c80ac197fa6a | 463 | /* Check for the Timeout */ |
| mbed_official | 330:c80ac197fa6a | 464 | if(Timeout != HAL_MAX_DELAY) |
| mbed_official | 330:c80ac197fa6a | 465 | { |
| mbed_official | 330:c80ac197fa6a | 466 | if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout)) |
| mbed_official | 330:c80ac197fa6a | 467 | { |
| mbed_official | 330:c80ac197fa6a | 468 | /* Update error code */ |
| mbed_official | 330:c80ac197fa6a | 469 | hdma->ErrorCode |= HAL_DMA_ERROR_TIMEOUT; |
| mbed_official | 330:c80ac197fa6a | 470 | |
| mbed_official | 330:c80ac197fa6a | 471 | /* Change the DMA state */ |
| mbed_official | 330:c80ac197fa6a | 472 | hdma->State = HAL_DMA_STATE_TIMEOUT; |
| mbed_official | 330:c80ac197fa6a | 473 | |
| mbed_official | 330:c80ac197fa6a | 474 | /* Process Unlocked */ |
| mbed_official | 330:c80ac197fa6a | 475 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 476 | |
| mbed_official | 330:c80ac197fa6a | 477 | return HAL_TIMEOUT; |
| mbed_official | 330:c80ac197fa6a | 478 | } |
| mbed_official | 330:c80ac197fa6a | 479 | } |
| mbed_official | 330:c80ac197fa6a | 480 | } |
| mbed_official | 330:c80ac197fa6a | 481 | |
| mbed_official | 330:c80ac197fa6a | 482 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
| mbed_official | 330:c80ac197fa6a | 483 | { |
| mbed_official | 330:c80ac197fa6a | 484 | /* Clear the transfer complete flag */ |
| mbed_official | 330:c80ac197fa6a | 485 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 486 | |
| mbed_official | 330:c80ac197fa6a | 487 | /* The selected Channelx EN bit is cleared (DMA is disabled and |
| mbed_official | 330:c80ac197fa6a | 488 | all transfers are complete) */ |
| mbed_official | 330:c80ac197fa6a | 489 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 330:c80ac197fa6a | 490 | |
| mbed_official | 330:c80ac197fa6a | 491 | } |
| mbed_official | 330:c80ac197fa6a | 492 | else |
| mbed_official | 330:c80ac197fa6a | 493 | { |
| mbed_official | 330:c80ac197fa6a | 494 | /* Clear the half transfer complete flag */ |
| mbed_official | 330:c80ac197fa6a | 495 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 496 | |
| mbed_official | 330:c80ac197fa6a | 497 | hdma->State = HAL_DMA_STATE_READY_HALF; |
| mbed_official | 330:c80ac197fa6a | 498 | } |
| mbed_official | 330:c80ac197fa6a | 499 | |
| mbed_official | 330:c80ac197fa6a | 500 | /* Process unlocked */ |
| mbed_official | 330:c80ac197fa6a | 501 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 502 | |
| mbed_official | 330:c80ac197fa6a | 503 | return HAL_OK; |
| mbed_official | 330:c80ac197fa6a | 504 | } |
| mbed_official | 330:c80ac197fa6a | 505 | |
| mbed_official | 330:c80ac197fa6a | 506 | /** |
| mbed_official | 330:c80ac197fa6a | 507 | * @brief Handles DMA interrupt request. |
| mbed_official | 330:c80ac197fa6a | 508 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 509 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 510 | * @retval None |
| mbed_official | 330:c80ac197fa6a | 511 | */ |
| mbed_official | 330:c80ac197fa6a | 512 | void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) |
| mbed_official | 330:c80ac197fa6a | 513 | { |
| mbed_official | 330:c80ac197fa6a | 514 | /* Transfer Error Interrupt management ***************************************/ |
| mbed_official | 330:c80ac197fa6a | 515 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET) |
| mbed_official | 330:c80ac197fa6a | 516 | { |
| mbed_official | 330:c80ac197fa6a | 517 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TE) != RESET) |
| mbed_official | 330:c80ac197fa6a | 518 | { |
| mbed_official | 330:c80ac197fa6a | 519 | /* Disable the transfer error interrupt */ |
| mbed_official | 330:c80ac197fa6a | 520 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TE); |
| mbed_official | 330:c80ac197fa6a | 521 | |
| mbed_official | 330:c80ac197fa6a | 522 | /* Clear the transfer error flag */ |
| mbed_official | 330:c80ac197fa6a | 523 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 524 | |
| mbed_official | 330:c80ac197fa6a | 525 | /* Update error code */ |
| mbed_official | 330:c80ac197fa6a | 526 | hdma->ErrorCode |= HAL_DMA_ERROR_TE; |
| mbed_official | 330:c80ac197fa6a | 527 | |
| mbed_official | 330:c80ac197fa6a | 528 | /* Change the DMA state */ |
| mbed_official | 330:c80ac197fa6a | 529 | hdma->State = HAL_DMA_STATE_ERROR; |
| mbed_official | 330:c80ac197fa6a | 530 | |
| mbed_official | 330:c80ac197fa6a | 531 | /* Process Unlocked */ |
| mbed_official | 330:c80ac197fa6a | 532 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 533 | |
| mbed_official | 634:ac7d6880524d | 534 | if (hdma->XferErrorCallback != HAL_NULL) |
| mbed_official | 330:c80ac197fa6a | 535 | { |
| mbed_official | 330:c80ac197fa6a | 536 | /* Transfer error callback */ |
| mbed_official | 330:c80ac197fa6a | 537 | hdma->XferErrorCallback(hdma); |
| mbed_official | 330:c80ac197fa6a | 538 | } |
| mbed_official | 330:c80ac197fa6a | 539 | } |
| mbed_official | 330:c80ac197fa6a | 540 | } |
| mbed_official | 330:c80ac197fa6a | 541 | |
| mbed_official | 330:c80ac197fa6a | 542 | /* Half Transfer Complete Interrupt management ******************************/ |
| mbed_official | 330:c80ac197fa6a | 543 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)) != RESET) |
| mbed_official | 330:c80ac197fa6a | 544 | { |
| mbed_official | 330:c80ac197fa6a | 545 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_HT) != RESET) |
| mbed_official | 330:c80ac197fa6a | 546 | { |
| mbed_official | 330:c80ac197fa6a | 547 | /* Disable the half transfer interrupt if the DMA mode is not CIRCULAR */ |
| mbed_official | 330:c80ac197fa6a | 548 | if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0) |
| mbed_official | 330:c80ac197fa6a | 549 | { |
| mbed_official | 330:c80ac197fa6a | 550 | /* Disable the half transfer interrupt */ |
| mbed_official | 330:c80ac197fa6a | 551 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT); |
| mbed_official | 330:c80ac197fa6a | 552 | } |
| mbed_official | 330:c80ac197fa6a | 553 | /* Clear the half transfer complete flag */ |
| mbed_official | 330:c80ac197fa6a | 554 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 555 | |
| mbed_official | 330:c80ac197fa6a | 556 | /* Change DMA peripheral state */ |
| mbed_official | 330:c80ac197fa6a | 557 | hdma->State = HAL_DMA_STATE_READY_HALF; |
| mbed_official | 330:c80ac197fa6a | 558 | |
| mbed_official | 634:ac7d6880524d | 559 | if(hdma->XferHalfCpltCallback != HAL_NULL) |
| mbed_official | 330:c80ac197fa6a | 560 | { |
| mbed_official | 330:c80ac197fa6a | 561 | /* Half transfer callback */ |
| mbed_official | 330:c80ac197fa6a | 562 | hdma->XferHalfCpltCallback(hdma); |
| mbed_official | 330:c80ac197fa6a | 563 | } |
| mbed_official | 330:c80ac197fa6a | 564 | } |
| mbed_official | 330:c80ac197fa6a | 565 | } |
| mbed_official | 330:c80ac197fa6a | 566 | |
| mbed_official | 330:c80ac197fa6a | 567 | /* Transfer Complete Interrupt management ***********************************/ |
| mbed_official | 330:c80ac197fa6a | 568 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)) != RESET) |
| mbed_official | 330:c80ac197fa6a | 569 | { |
| mbed_official | 330:c80ac197fa6a | 570 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TC) != RESET) |
| mbed_official | 330:c80ac197fa6a | 571 | { |
| mbed_official | 330:c80ac197fa6a | 572 | if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0) |
| mbed_official | 330:c80ac197fa6a | 573 | { |
| mbed_official | 330:c80ac197fa6a | 574 | /* Disable the transfer complete interrupt */ |
| mbed_official | 330:c80ac197fa6a | 575 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TC); |
| mbed_official | 330:c80ac197fa6a | 576 | } |
| mbed_official | 330:c80ac197fa6a | 577 | /* Clear the transfer complete flag */ |
| mbed_official | 330:c80ac197fa6a | 578 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
| mbed_official | 330:c80ac197fa6a | 579 | |
| mbed_official | 330:c80ac197fa6a | 580 | /* Update error code */ |
| mbed_official | 330:c80ac197fa6a | 581 | hdma->ErrorCode |= HAL_DMA_ERROR_NONE; |
| mbed_official | 330:c80ac197fa6a | 582 | |
| mbed_official | 330:c80ac197fa6a | 583 | /* Change the DMA state */ |
| mbed_official | 330:c80ac197fa6a | 584 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 330:c80ac197fa6a | 585 | |
| mbed_official | 330:c80ac197fa6a | 586 | /* Process Unlocked */ |
| mbed_official | 330:c80ac197fa6a | 587 | __HAL_UNLOCK(hdma); |
| mbed_official | 330:c80ac197fa6a | 588 | |
| mbed_official | 634:ac7d6880524d | 589 | if(hdma->XferCpltCallback != HAL_NULL) |
| mbed_official | 330:c80ac197fa6a | 590 | { |
| mbed_official | 330:c80ac197fa6a | 591 | /* Transfer complete callback */ |
| mbed_official | 330:c80ac197fa6a | 592 | hdma->XferCpltCallback(hdma); |
| mbed_official | 330:c80ac197fa6a | 593 | } |
| mbed_official | 330:c80ac197fa6a | 594 | } |
| mbed_official | 330:c80ac197fa6a | 595 | } |
| mbed_official | 330:c80ac197fa6a | 596 | } |
| mbed_official | 330:c80ac197fa6a | 597 | |
| mbed_official | 330:c80ac197fa6a | 598 | /** |
| mbed_official | 330:c80ac197fa6a | 599 | * @} |
| mbed_official | 330:c80ac197fa6a | 600 | */ |
| mbed_official | 330:c80ac197fa6a | 601 | |
| mbed_official | 330:c80ac197fa6a | 602 | /** @defgroup DMA_Exported_Functions_Group3 Peripheral State functions |
| mbed_official | 330:c80ac197fa6a | 603 | * @brief Peripheral State functions |
| mbed_official | 330:c80ac197fa6a | 604 | * |
| mbed_official | 330:c80ac197fa6a | 605 | @verbatim |
| mbed_official | 330:c80ac197fa6a | 606 | =============================================================================== |
| mbed_official | 330:c80ac197fa6a | 607 | ##### State and Errors functions ##### |
| mbed_official | 330:c80ac197fa6a | 608 | =============================================================================== |
| mbed_official | 330:c80ac197fa6a | 609 | [..] |
| mbed_official | 330:c80ac197fa6a | 610 | This subsection provides functions allowing to |
| mbed_official | 330:c80ac197fa6a | 611 | (+) Check the DMA state |
| mbed_official | 330:c80ac197fa6a | 612 | (+) Get error code |
| mbed_official | 330:c80ac197fa6a | 613 | |
| mbed_official | 330:c80ac197fa6a | 614 | @endverbatim |
| mbed_official | 330:c80ac197fa6a | 615 | * @{ |
| mbed_official | 330:c80ac197fa6a | 616 | */ |
| mbed_official | 330:c80ac197fa6a | 617 | |
| mbed_official | 330:c80ac197fa6a | 618 | /** |
| mbed_official | 330:c80ac197fa6a | 619 | * @brief Returns the DMA state. |
| mbed_official | 330:c80ac197fa6a | 620 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 621 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 622 | * @retval HAL state |
| mbed_official | 330:c80ac197fa6a | 623 | */ |
| mbed_official | 330:c80ac197fa6a | 624 | HAL_DMA_StateTypeDef HAL_DMA_GetState(DMA_HandleTypeDef *hdma) |
| mbed_official | 330:c80ac197fa6a | 625 | { |
| mbed_official | 330:c80ac197fa6a | 626 | return hdma->State; |
| mbed_official | 330:c80ac197fa6a | 627 | } |
| mbed_official | 330:c80ac197fa6a | 628 | |
| mbed_official | 330:c80ac197fa6a | 629 | /** |
| mbed_official | 330:c80ac197fa6a | 630 | * @brief Return the DMA error code |
| mbed_official | 330:c80ac197fa6a | 631 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 632 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 633 | * @retval DMA Error Code |
| mbed_official | 330:c80ac197fa6a | 634 | */ |
| mbed_official | 330:c80ac197fa6a | 635 | uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma) |
| mbed_official | 330:c80ac197fa6a | 636 | { |
| mbed_official | 330:c80ac197fa6a | 637 | return hdma->ErrorCode; |
| mbed_official | 330:c80ac197fa6a | 638 | } |
| mbed_official | 330:c80ac197fa6a | 639 | |
| mbed_official | 330:c80ac197fa6a | 640 | /** |
| mbed_official | 330:c80ac197fa6a | 641 | * @} |
| mbed_official | 330:c80ac197fa6a | 642 | */ |
| mbed_official | 330:c80ac197fa6a | 643 | |
| mbed_official | 330:c80ac197fa6a | 644 | /** |
| mbed_official | 330:c80ac197fa6a | 645 | * @} |
| mbed_official | 330:c80ac197fa6a | 646 | */ |
| mbed_official | 330:c80ac197fa6a | 647 | |
| mbed_official | 330:c80ac197fa6a | 648 | /** @addtogroup DMA_Private_Functions DMA Private Functions |
| mbed_official | 330:c80ac197fa6a | 649 | * @{ |
| mbed_official | 330:c80ac197fa6a | 650 | */ |
| mbed_official | 330:c80ac197fa6a | 651 | |
| mbed_official | 330:c80ac197fa6a | 652 | /** |
| mbed_official | 330:c80ac197fa6a | 653 | * @brief Sets the DMA Transfer parameter. |
| mbed_official | 330:c80ac197fa6a | 654 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 330:c80ac197fa6a | 655 | * the configuration information for the specified DMA Channel. |
| mbed_official | 330:c80ac197fa6a | 656 | * @param SrcAddress: The source memory Buffer address |
| mbed_official | 330:c80ac197fa6a | 657 | * @param DstAddress: The destination memory Buffer address |
| mbed_official | 330:c80ac197fa6a | 658 | * @param DataLength: The length of data to be transferred from source to destination |
| mbed_official | 330:c80ac197fa6a | 659 | * @retval HAL status |
| mbed_official | 330:c80ac197fa6a | 660 | */ |
| mbed_official | 330:c80ac197fa6a | 661 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
| mbed_official | 330:c80ac197fa6a | 662 | { |
| mbed_official | 330:c80ac197fa6a | 663 | /* Configure DMA Channel data length */ |
| mbed_official | 330:c80ac197fa6a | 664 | hdma->Instance->CNDTR = DataLength; |
| mbed_official | 330:c80ac197fa6a | 665 | |
| mbed_official | 330:c80ac197fa6a | 666 | /* Peripheral to Memory */ |
| mbed_official | 330:c80ac197fa6a | 667 | if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH) |
| mbed_official | 330:c80ac197fa6a | 668 | { |
| mbed_official | 330:c80ac197fa6a | 669 | /* Configure DMA Channel destination address */ |
| mbed_official | 330:c80ac197fa6a | 670 | hdma->Instance->CPAR = DstAddress; |
| mbed_official | 330:c80ac197fa6a | 671 | |
| mbed_official | 330:c80ac197fa6a | 672 | /* Configure DMA Channel source address */ |
| mbed_official | 330:c80ac197fa6a | 673 | hdma->Instance->CMAR = SrcAddress; |
| mbed_official | 330:c80ac197fa6a | 674 | } |
| mbed_official | 330:c80ac197fa6a | 675 | /* Memory to Peripheral */ |
| mbed_official | 330:c80ac197fa6a | 676 | else |
| mbed_official | 330:c80ac197fa6a | 677 | { |
| mbed_official | 330:c80ac197fa6a | 678 | /* Configure DMA Channel source address */ |
| mbed_official | 330:c80ac197fa6a | 679 | hdma->Instance->CPAR = SrcAddress; |
| mbed_official | 330:c80ac197fa6a | 680 | |
| mbed_official | 330:c80ac197fa6a | 681 | /* Configure DMA Channel destination address */ |
| mbed_official | 330:c80ac197fa6a | 682 | hdma->Instance->CMAR = DstAddress; |
| mbed_official | 330:c80ac197fa6a | 683 | } |
| mbed_official | 330:c80ac197fa6a | 684 | } |
| mbed_official | 330:c80ac197fa6a | 685 | |
| mbed_official | 330:c80ac197fa6a | 686 | /** |
| mbed_official | 330:c80ac197fa6a | 687 | * @} |
| mbed_official | 330:c80ac197fa6a | 688 | */ |
| mbed_official | 330:c80ac197fa6a | 689 | |
| mbed_official | 330:c80ac197fa6a | 690 | #endif /* HAL_DMA_MODULE_ENABLED */ |
| mbed_official | 330:c80ac197fa6a | 691 | /** |
| mbed_official | 330:c80ac197fa6a | 692 | * @} |
| mbed_official | 330:c80ac197fa6a | 693 | */ |
| mbed_official | 330:c80ac197fa6a | 694 | |
| mbed_official | 330:c80ac197fa6a | 695 | /** |
| mbed_official | 330:c80ac197fa6a | 696 | * @} |
| mbed_official | 330:c80ac197fa6a | 697 | */ |
| mbed_official | 330:c80ac197fa6a | 698 | |
| mbed_official | 330:c80ac197fa6a | 699 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |