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targets/cmsis/TARGET_STM/TARGET_DISCO_L053C8/stm32l0xx_hal_dma.c@376:cb4d9db17537, 2014-10-31 (annotated)
- Committer:
- mbed_official
- Date:
- Fri Oct 31 11:00:10 2014 +0000
- Revision:
- 376:cb4d9db17537
Synchronized with git revision 07b49da75eac883fc8916d3d6b6962664b8db29e
Full URL: https://github.com/mbedmicro/mbed/commit/07b49da75eac883fc8916d3d6b6962664b8db29e/
Targets: DISCO_L053C8 - new platform - STM32L0 Discovery board
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 376:cb4d9db17537 | 1 | /** |
| mbed_official | 376:cb4d9db17537 | 2 | ****************************************************************************** |
| mbed_official | 376:cb4d9db17537 | 3 | * @file stm32l0xx_hal_dma.c |
| mbed_official | 376:cb4d9db17537 | 4 | * @author MCD Application Team |
| mbed_official | 376:cb4d9db17537 | 5 | * @version V1.1.0 |
| mbed_official | 376:cb4d9db17537 | 6 | * @date 18-June-2014 |
| mbed_official | 376:cb4d9db17537 | 7 | * @brief DMA HAL module driver. |
| mbed_official | 376:cb4d9db17537 | 8 | * |
| mbed_official | 376:cb4d9db17537 | 9 | * This file provides firmware functions to manage the following |
| mbed_official | 376:cb4d9db17537 | 10 | * functionalities of the Direct Memory Access (DMA) peripheral: |
| mbed_official | 376:cb4d9db17537 | 11 | * + Initialization/de-initialization functions |
| mbed_official | 376:cb4d9db17537 | 12 | * + I/O operation functions |
| mbed_official | 376:cb4d9db17537 | 13 | * + Peripheral State functions |
| mbed_official | 376:cb4d9db17537 | 14 | * |
| mbed_official | 376:cb4d9db17537 | 15 | * |
| mbed_official | 376:cb4d9db17537 | 16 | @verbatim |
| mbed_official | 376:cb4d9db17537 | 17 | ============================================================================== |
| mbed_official | 376:cb4d9db17537 | 18 | ##### How to use this driver ##### |
| mbed_official | 376:cb4d9db17537 | 19 | ============================================================================== |
| mbed_official | 376:cb4d9db17537 | 20 | [..] |
| mbed_official | 376:cb4d9db17537 | 21 | (#) Enable and configure the peripheral to be connected to the DMA Channel |
| mbed_official | 376:cb4d9db17537 | 22 | (except for internal SRAM / FLASH memories: no initialization is |
| mbed_official | 376:cb4d9db17537 | 23 | necessary). |
| mbed_official | 376:cb4d9db17537 | 24 | |
| mbed_official | 376:cb4d9db17537 | 25 | (#) For a given Channel, program the required configuration through the following parameters: |
| mbed_official | 376:cb4d9db17537 | 26 | Channel request, Transfer Direction, Source and Destination data formats, |
| mbed_official | 376:cb4d9db17537 | 27 | Circular, Normal or peripheral flow control mode, Channel Priority level, |
| mbed_official | 376:cb4d9db17537 | 28 | Source and Destination Increment mode using HAL_DMA_Init() function. |
| mbed_official | 376:cb4d9db17537 | 29 | |
| mbed_official | 376:cb4d9db17537 | 30 | *** Polling mode IO operation *** |
| mbed_official | 376:cb4d9db17537 | 31 | ================================= |
| mbed_official | 376:cb4d9db17537 | 32 | [..] |
| mbed_official | 376:cb4d9db17537 | 33 | (+) Use HAL_DMA_Start() to start DMA transfer after the configuration of Source |
| mbed_official | 376:cb4d9db17537 | 34 | address and destination address and the Length of data to be transferred |
| mbed_official | 376:cb4d9db17537 | 35 | (+) Use HAL_DMA_PollForTransfer() to poll for the end of current transfer, in this |
| mbed_official | 376:cb4d9db17537 | 36 | case a fixed Timeout can be configured by User depending from his application. |
| mbed_official | 376:cb4d9db17537 | 37 | |
| mbed_official | 376:cb4d9db17537 | 38 | *** Interrupt mode IO operation *** |
| mbed_official | 376:cb4d9db17537 | 39 | =================================== |
| mbed_official | 376:cb4d9db17537 | 40 | [..] |
| mbed_official | 376:cb4d9db17537 | 41 | (+) Configure the DMA interrupt priority using HAL_NVIC_SetPriority() |
| mbed_official | 376:cb4d9db17537 | 42 | (+) Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ() |
| mbed_official | 376:cb4d9db17537 | 43 | (+) Use HAL_DMA_Start_IT() to start DMA transfer after the configuration of |
| mbed_official | 376:cb4d9db17537 | 44 | Source address and destination address and the Length of data to be transferred. In this |
| mbed_official | 376:cb4d9db17537 | 45 | case the DMA interrupt is configured |
| mbed_official | 376:cb4d9db17537 | 46 | (+) Use HAL_DMA_IRQHandler() called under DMA_IRQHandler() Interrupt subroutine |
| mbed_official | 376:cb4d9db17537 | 47 | (+) At the end of data transfer HAL_DMA_IRQHandler() function is executed and user can |
| mbed_official | 376:cb4d9db17537 | 48 | add his own function by customization of function pointer XferCpltCallback and |
| mbed_official | 376:cb4d9db17537 | 49 | XferErrorCallback (i.e a member of DMA handle structure). |
| mbed_official | 376:cb4d9db17537 | 50 | |
| mbed_official | 376:cb4d9db17537 | 51 | (#) Use HAL_DMA_GetState() function to return the DMA state and HAL_DMA_GetError() in case of error |
| mbed_official | 376:cb4d9db17537 | 52 | detection. |
| mbed_official | 376:cb4d9db17537 | 53 | |
| mbed_official | 376:cb4d9db17537 | 54 | (#) Use HAL_DMA_Abort() function to abort the current transfer |
| mbed_official | 376:cb4d9db17537 | 55 | |
| mbed_official | 376:cb4d9db17537 | 56 | -@- In Memory-to-Memory transfer mode, Circular mode is not allowed. |
| mbed_official | 376:cb4d9db17537 | 57 | |
| mbed_official | 376:cb4d9db17537 | 58 | @endverbatim |
| mbed_official | 376:cb4d9db17537 | 59 | ****************************************************************************** |
| mbed_official | 376:cb4d9db17537 | 60 | * @attention |
| mbed_official | 376:cb4d9db17537 | 61 | * |
| mbed_official | 376:cb4d9db17537 | 62 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
| mbed_official | 376:cb4d9db17537 | 63 | * |
| mbed_official | 376:cb4d9db17537 | 64 | * Redistribution and use in source and binary forms, with or without modification, |
| mbed_official | 376:cb4d9db17537 | 65 | * are permitted provided that the following conditions are met: |
| mbed_official | 376:cb4d9db17537 | 66 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 376:cb4d9db17537 | 67 | * this list of conditions and the following disclaimer. |
| mbed_official | 376:cb4d9db17537 | 68 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 376:cb4d9db17537 | 69 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 376:cb4d9db17537 | 70 | * and/or other materials provided with the distribution. |
| mbed_official | 376:cb4d9db17537 | 71 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| mbed_official | 376:cb4d9db17537 | 72 | * may be used to endorse or promote products derived from this software |
| mbed_official | 376:cb4d9db17537 | 73 | * without specific prior written permission. |
| mbed_official | 376:cb4d9db17537 | 74 | * |
| mbed_official | 376:cb4d9db17537 | 75 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| mbed_official | 376:cb4d9db17537 | 76 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| mbed_official | 376:cb4d9db17537 | 77 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| mbed_official | 376:cb4d9db17537 | 78 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| mbed_official | 376:cb4d9db17537 | 79 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 376:cb4d9db17537 | 80 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| mbed_official | 376:cb4d9db17537 | 81 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| mbed_official | 376:cb4d9db17537 | 82 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| mbed_official | 376:cb4d9db17537 | 83 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| mbed_official | 376:cb4d9db17537 | 84 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 376:cb4d9db17537 | 85 | * |
| mbed_official | 376:cb4d9db17537 | 86 | ****************************************************************************** |
| mbed_official | 376:cb4d9db17537 | 87 | */ |
| mbed_official | 376:cb4d9db17537 | 88 | |
| mbed_official | 376:cb4d9db17537 | 89 | /* Includes ------------------------------------------------------------------*/ |
| mbed_official | 376:cb4d9db17537 | 90 | #include "stm32l0xx_hal.h" |
| mbed_official | 376:cb4d9db17537 | 91 | |
| mbed_official | 376:cb4d9db17537 | 92 | /** @addtogroup STM32L0xx_HAL_Driver |
| mbed_official | 376:cb4d9db17537 | 93 | * @{ |
| mbed_official | 376:cb4d9db17537 | 94 | */ |
| mbed_official | 376:cb4d9db17537 | 95 | |
| mbed_official | 376:cb4d9db17537 | 96 | /** @defgroup DMA |
| mbed_official | 376:cb4d9db17537 | 97 | * @brief DMA HAL module driver |
| mbed_official | 376:cb4d9db17537 | 98 | * @{ |
| mbed_official | 376:cb4d9db17537 | 99 | */ |
| mbed_official | 376:cb4d9db17537 | 100 | |
| mbed_official | 376:cb4d9db17537 | 101 | #ifdef HAL_DMA_MODULE_ENABLED |
| mbed_official | 376:cb4d9db17537 | 102 | |
| mbed_official | 376:cb4d9db17537 | 103 | /* Private typedef -----------------------------------------------------------*/ |
| mbed_official | 376:cb4d9db17537 | 104 | /* Private define ------------------------------------------------------------*/ |
| mbed_official | 376:cb4d9db17537 | 105 | #define HAL_TIMEOUT_DMA_ABORT ((uint32_t)1000) /* 1s */ |
| mbed_official | 376:cb4d9db17537 | 106 | /* Private macro -------------------------------------------------------------*/ |
| mbed_official | 376:cb4d9db17537 | 107 | /* Private variables ---------------------------------------------------------*/ |
| mbed_official | 376:cb4d9db17537 | 108 | /* Private function prototypes -----------------------------------------------*/ |
| mbed_official | 376:cb4d9db17537 | 109 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); |
| mbed_official | 376:cb4d9db17537 | 110 | |
| mbed_official | 376:cb4d9db17537 | 111 | /* Private functions ---------------------------------------------------------*/ |
| mbed_official | 376:cb4d9db17537 | 112 | |
| mbed_official | 376:cb4d9db17537 | 113 | /** @defgroup DMA_Private_Functions |
| mbed_official | 376:cb4d9db17537 | 114 | * @{ |
| mbed_official | 376:cb4d9db17537 | 115 | */ |
| mbed_official | 376:cb4d9db17537 | 116 | |
| mbed_official | 376:cb4d9db17537 | 117 | /** @defgroup DMA_Group1 Initialization/de-initialization functions |
| mbed_official | 376:cb4d9db17537 | 118 | * @brief Initialization/de-initialization functions |
| mbed_official | 376:cb4d9db17537 | 119 | * |
| mbed_official | 376:cb4d9db17537 | 120 | @verbatim |
| mbed_official | 376:cb4d9db17537 | 121 | =============================================================================== |
| mbed_official | 376:cb4d9db17537 | 122 | ##### Initialization and de-initialization functions ##### |
| mbed_official | 376:cb4d9db17537 | 123 | =============================================================================== |
| mbed_official | 376:cb4d9db17537 | 124 | [..] This section provides functions allowing to: |
| mbed_official | 376:cb4d9db17537 | 125 | (+) Initialize and configure the DMA |
| mbed_official | 376:cb4d9db17537 | 126 | (+) De-Initialize the DMA |
| mbed_official | 376:cb4d9db17537 | 127 | |
| mbed_official | 376:cb4d9db17537 | 128 | @endverbatim |
| mbed_official | 376:cb4d9db17537 | 129 | * @{ |
| mbed_official | 376:cb4d9db17537 | 130 | */ |
| mbed_official | 376:cb4d9db17537 | 131 | |
| mbed_official | 376:cb4d9db17537 | 132 | /** |
| mbed_official | 376:cb4d9db17537 | 133 | * @brief Initializes the DMA according to the specified |
| mbed_official | 376:cb4d9db17537 | 134 | * parameters in the DMA_InitTypeDef and create the associated handle. |
| mbed_official | 376:cb4d9db17537 | 135 | * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 136 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 137 | * @retval HAL status |
| mbed_official | 376:cb4d9db17537 | 138 | */ |
| mbed_official | 376:cb4d9db17537 | 139 | HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma) |
| mbed_official | 376:cb4d9db17537 | 140 | { |
| mbed_official | 376:cb4d9db17537 | 141 | uint32_t tmp = 0; |
| mbed_official | 376:cb4d9db17537 | 142 | |
| mbed_official | 376:cb4d9db17537 | 143 | /* Check the DMA peripheral state */ |
| mbed_official | 376:cb4d9db17537 | 144 | if(hdma == NULL) |
| mbed_official | 376:cb4d9db17537 | 145 | { |
| mbed_official | 376:cb4d9db17537 | 146 | return HAL_ERROR; |
| mbed_official | 376:cb4d9db17537 | 147 | } |
| mbed_official | 376:cb4d9db17537 | 148 | |
| mbed_official | 376:cb4d9db17537 | 149 | /* Check the parameters */ |
| mbed_official | 376:cb4d9db17537 | 150 | assert_param(IS_DMA_ALL_PERIPH(hdma->Instance)); |
| mbed_official | 376:cb4d9db17537 | 151 | assert_param(IS_DMA_ALL_REQUEST(hdma->Init.Request)); |
| mbed_official | 376:cb4d9db17537 | 152 | assert_param(IS_DMA_DIRECTION(hdma->Init.Direction)); |
| mbed_official | 376:cb4d9db17537 | 153 | assert_param(IS_DMA_PERIPHERAL_INC_STATE(hdma->Init.PeriphInc)); |
| mbed_official | 376:cb4d9db17537 | 154 | assert_param(IS_DMA_MEMORY_INC_STATE(hdma->Init.MemInc)); |
| mbed_official | 376:cb4d9db17537 | 155 | assert_param(IS_DMA_PERIPHERAL_DATA_SIZE(hdma->Init.PeriphDataAlignment)); |
| mbed_official | 376:cb4d9db17537 | 156 | assert_param(IS_DMA_MEMORY_DATA_SIZE(hdma->Init.MemDataAlignment)); |
| mbed_official | 376:cb4d9db17537 | 157 | assert_param(IS_DMA_MODE(hdma->Init.Mode)); |
| mbed_official | 376:cb4d9db17537 | 158 | assert_param(IS_DMA_PRIORITY(hdma->Init.Priority)); |
| mbed_official | 376:cb4d9db17537 | 159 | |
| mbed_official | 376:cb4d9db17537 | 160 | /* Change DMA peripheral state */ |
| mbed_official | 376:cb4d9db17537 | 161 | hdma->State = HAL_DMA_STATE_BUSY; |
| mbed_official | 376:cb4d9db17537 | 162 | |
| mbed_official | 376:cb4d9db17537 | 163 | /* Get the CR register value */ |
| mbed_official | 376:cb4d9db17537 | 164 | tmp = hdma->Instance->CCR; |
| mbed_official | 376:cb4d9db17537 | 165 | |
| mbed_official | 376:cb4d9db17537 | 166 | /* Clear PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR bits */ |
| mbed_official | 376:cb4d9db17537 | 167 | tmp &= ((uint32_t)~(DMA_CCR_PL | DMA_CCR_MSIZE | DMA_CCR_PSIZE | \ |
| mbed_official | 376:cb4d9db17537 | 168 | DMA_CCR_MINC | DMA_CCR_PINC | DMA_CCR_CIRC | \ |
| mbed_official | 376:cb4d9db17537 | 169 | DMA_CCR_DIR)); |
| mbed_official | 376:cb4d9db17537 | 170 | |
| mbed_official | 376:cb4d9db17537 | 171 | /* Prepare the DMA Channel configuration */ |
| mbed_official | 376:cb4d9db17537 | 172 | tmp |= hdma->Init.Direction | |
| mbed_official | 376:cb4d9db17537 | 173 | hdma->Init.PeriphInc | hdma->Init.MemInc | |
| mbed_official | 376:cb4d9db17537 | 174 | hdma->Init.PeriphDataAlignment | hdma->Init.MemDataAlignment | |
| mbed_official | 376:cb4d9db17537 | 175 | hdma->Init.Mode | hdma->Init.Priority; |
| mbed_official | 376:cb4d9db17537 | 176 | |
| mbed_official | 376:cb4d9db17537 | 177 | /* Write to DMA Channel CR register */ |
| mbed_official | 376:cb4d9db17537 | 178 | hdma->Instance->CCR = tmp; |
| mbed_official | 376:cb4d9db17537 | 179 | |
| mbed_official | 376:cb4d9db17537 | 180 | /* Write to DMA channel selection register */ |
| mbed_official | 376:cb4d9db17537 | 181 | if (hdma->Instance == DMA1_Channel1) |
| mbed_official | 376:cb4d9db17537 | 182 | { |
| mbed_official | 376:cb4d9db17537 | 183 | /*Reset request selection for DMA1 Channel1*/ |
| mbed_official | 376:cb4d9db17537 | 184 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C1S; |
| mbed_official | 376:cb4d9db17537 | 185 | |
| mbed_official | 376:cb4d9db17537 | 186 | /* Configure request selection for DMA1 Channel1 */ |
| mbed_official | 376:cb4d9db17537 | 187 | DMA1_CSELR->CSELR |= hdma->Init.Request; |
| mbed_official | 376:cb4d9db17537 | 188 | } |
| mbed_official | 376:cb4d9db17537 | 189 | else if (hdma->Instance == DMA1_Channel2) |
| mbed_official | 376:cb4d9db17537 | 190 | { |
| mbed_official | 376:cb4d9db17537 | 191 | /*Reset request selection for DMA1 Channel2*/ |
| mbed_official | 376:cb4d9db17537 | 192 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C2S; |
| mbed_official | 376:cb4d9db17537 | 193 | |
| mbed_official | 376:cb4d9db17537 | 194 | /* Configure request selection for DMA1 Channel2 */ |
| mbed_official | 376:cb4d9db17537 | 195 | DMA1_CSELR->CSELR |= (uint32_t)(hdma->Init.Request << 4); |
| mbed_official | 376:cb4d9db17537 | 196 | } |
| mbed_official | 376:cb4d9db17537 | 197 | else if (hdma->Instance == DMA1_Channel3) |
| mbed_official | 376:cb4d9db17537 | 198 | { |
| mbed_official | 376:cb4d9db17537 | 199 | /*Reset request selection for DMA1 Channel3*/ |
| mbed_official | 376:cb4d9db17537 | 200 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C3S; |
| mbed_official | 376:cb4d9db17537 | 201 | |
| mbed_official | 376:cb4d9db17537 | 202 | /* Configure request selection for DMA1 Channel3 */ |
| mbed_official | 376:cb4d9db17537 | 203 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 8); |
| mbed_official | 376:cb4d9db17537 | 204 | } |
| mbed_official | 376:cb4d9db17537 | 205 | else if (hdma->Instance == DMA1_Channel4) |
| mbed_official | 376:cb4d9db17537 | 206 | { |
| mbed_official | 376:cb4d9db17537 | 207 | /*Reset request selection for DMA1 Channel4*/ |
| mbed_official | 376:cb4d9db17537 | 208 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C4S; |
| mbed_official | 376:cb4d9db17537 | 209 | |
| mbed_official | 376:cb4d9db17537 | 210 | /* Configure request selection for DMA1 Channel4 */ |
| mbed_official | 376:cb4d9db17537 | 211 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 12); |
| mbed_official | 376:cb4d9db17537 | 212 | } |
| mbed_official | 376:cb4d9db17537 | 213 | else if (hdma->Instance == DMA1_Channel5) |
| mbed_official | 376:cb4d9db17537 | 214 | { |
| mbed_official | 376:cb4d9db17537 | 215 | /*Reset request selection for DMA1 Channel5*/ |
| mbed_official | 376:cb4d9db17537 | 216 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C5S; |
| mbed_official | 376:cb4d9db17537 | 217 | |
| mbed_official | 376:cb4d9db17537 | 218 | /* Configure request selection for DMA1 Channel5 */ |
| mbed_official | 376:cb4d9db17537 | 219 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 16); |
| mbed_official | 376:cb4d9db17537 | 220 | } |
| mbed_official | 376:cb4d9db17537 | 221 | else if (hdma->Instance == DMA1_Channel6) |
| mbed_official | 376:cb4d9db17537 | 222 | { |
| mbed_official | 376:cb4d9db17537 | 223 | /*Reset request selection for DMA1 Channel6*/ |
| mbed_official | 376:cb4d9db17537 | 224 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C6S; |
| mbed_official | 376:cb4d9db17537 | 225 | |
| mbed_official | 376:cb4d9db17537 | 226 | /* Configure request selection for DMA1 Channel6 */ |
| mbed_official | 376:cb4d9db17537 | 227 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 20); |
| mbed_official | 376:cb4d9db17537 | 228 | } |
| mbed_official | 376:cb4d9db17537 | 229 | else if (hdma->Instance == DMA1_Channel7) |
| mbed_official | 376:cb4d9db17537 | 230 | { |
| mbed_official | 376:cb4d9db17537 | 231 | /*Reset request selection for DMA1 Channel7*/ |
| mbed_official | 376:cb4d9db17537 | 232 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C7S; |
| mbed_official | 376:cb4d9db17537 | 233 | |
| mbed_official | 376:cb4d9db17537 | 234 | /* Configure request selection for DMA1 Channel7 */ |
| mbed_official | 376:cb4d9db17537 | 235 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 24); |
| mbed_official | 376:cb4d9db17537 | 236 | } |
| mbed_official | 376:cb4d9db17537 | 237 | |
| mbed_official | 376:cb4d9db17537 | 238 | /* Initialize the DMA state*/ |
| mbed_official | 376:cb4d9db17537 | 239 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 376:cb4d9db17537 | 240 | |
| mbed_official | 376:cb4d9db17537 | 241 | return HAL_OK; |
| mbed_official | 376:cb4d9db17537 | 242 | } |
| mbed_official | 376:cb4d9db17537 | 243 | |
| mbed_official | 376:cb4d9db17537 | 244 | /** |
| mbed_official | 376:cb4d9db17537 | 245 | * @brief DeInitializes the DMA peripheral |
| mbed_official | 376:cb4d9db17537 | 246 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 247 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 248 | * @retval HAL status |
| mbed_official | 376:cb4d9db17537 | 249 | */ |
| mbed_official | 376:cb4d9db17537 | 250 | HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) |
| mbed_official | 376:cb4d9db17537 | 251 | { |
| mbed_official | 376:cb4d9db17537 | 252 | /* Check the DMA peripheral state */ |
| mbed_official | 376:cb4d9db17537 | 253 | if(hdma == NULL) |
| mbed_official | 376:cb4d9db17537 | 254 | { |
| mbed_official | 376:cb4d9db17537 | 255 | return HAL_ERROR; |
| mbed_official | 376:cb4d9db17537 | 256 | } |
| mbed_official | 376:cb4d9db17537 | 257 | |
| mbed_official | 376:cb4d9db17537 | 258 | /* Check the DMA peripheral state */ |
| mbed_official | 376:cb4d9db17537 | 259 | if(hdma->State == HAL_DMA_STATE_BUSY) |
| mbed_official | 376:cb4d9db17537 | 260 | { |
| mbed_official | 376:cb4d9db17537 | 261 | return HAL_ERROR; |
| mbed_official | 376:cb4d9db17537 | 262 | } |
| mbed_official | 376:cb4d9db17537 | 263 | |
| mbed_official | 376:cb4d9db17537 | 264 | /* Disable the selected DMA Channelx */ |
| mbed_official | 376:cb4d9db17537 | 265 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 376:cb4d9db17537 | 266 | |
| mbed_official | 376:cb4d9db17537 | 267 | /* Reset DMA Channel control register */ |
| mbed_official | 376:cb4d9db17537 | 268 | hdma->Instance->CCR = 0; |
| mbed_official | 376:cb4d9db17537 | 269 | |
| mbed_official | 376:cb4d9db17537 | 270 | /* Reset DMA Channel Number of Data to Transfer register */ |
| mbed_official | 376:cb4d9db17537 | 271 | hdma->Instance->CNDTR = 0; |
| mbed_official | 376:cb4d9db17537 | 272 | |
| mbed_official | 376:cb4d9db17537 | 273 | /* Reset DMA Channel peripheral address register */ |
| mbed_official | 376:cb4d9db17537 | 274 | hdma->Instance->CPAR = 0; |
| mbed_official | 376:cb4d9db17537 | 275 | |
| mbed_official | 376:cb4d9db17537 | 276 | /* Reset DMA Channel memory address register */ |
| mbed_official | 376:cb4d9db17537 | 277 | hdma->Instance->CMAR = 0; |
| mbed_official | 376:cb4d9db17537 | 278 | |
| mbed_official | 376:cb4d9db17537 | 279 | /* Clear all flags */ |
| mbed_official | 376:cb4d9db17537 | 280 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_GI_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 281 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 282 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 283 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 284 | |
| mbed_official | 376:cb4d9db17537 | 285 | /* Reset DMA channel selection register */ |
| mbed_official | 376:cb4d9db17537 | 286 | if (hdma->Instance == DMA1_Channel1) |
| mbed_official | 376:cb4d9db17537 | 287 | { |
| mbed_official | 376:cb4d9db17537 | 288 | /*Reset DMA request*/ |
| mbed_official | 376:cb4d9db17537 | 289 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C1S; |
| mbed_official | 376:cb4d9db17537 | 290 | } |
| mbed_official | 376:cb4d9db17537 | 291 | else if (hdma->Instance == DMA1_Channel2) |
| mbed_official | 376:cb4d9db17537 | 292 | { |
| mbed_official | 376:cb4d9db17537 | 293 | /*Reset DMA request*/ |
| mbed_official | 376:cb4d9db17537 | 294 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C2S; |
| mbed_official | 376:cb4d9db17537 | 295 | } |
| mbed_official | 376:cb4d9db17537 | 296 | else if (hdma->Instance == DMA1_Channel3) |
| mbed_official | 376:cb4d9db17537 | 297 | { |
| mbed_official | 376:cb4d9db17537 | 298 | /*Reset DMA request*/ |
| mbed_official | 376:cb4d9db17537 | 299 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C3S; |
| mbed_official | 376:cb4d9db17537 | 300 | } |
| mbed_official | 376:cb4d9db17537 | 301 | else if (hdma->Instance == DMA1_Channel4) |
| mbed_official | 376:cb4d9db17537 | 302 | { |
| mbed_official | 376:cb4d9db17537 | 303 | /*Reset DMA request*/ |
| mbed_official | 376:cb4d9db17537 | 304 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C4S; |
| mbed_official | 376:cb4d9db17537 | 305 | } |
| mbed_official | 376:cb4d9db17537 | 306 | else if (hdma->Instance == DMA1_Channel5) |
| mbed_official | 376:cb4d9db17537 | 307 | { |
| mbed_official | 376:cb4d9db17537 | 308 | /*Reset DMA request*/ |
| mbed_official | 376:cb4d9db17537 | 309 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C5S; |
| mbed_official | 376:cb4d9db17537 | 310 | } |
| mbed_official | 376:cb4d9db17537 | 311 | else if (hdma->Instance == DMA1_Channel6) |
| mbed_official | 376:cb4d9db17537 | 312 | { |
| mbed_official | 376:cb4d9db17537 | 313 | /*Reset DMA request*/ |
| mbed_official | 376:cb4d9db17537 | 314 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C6S; |
| mbed_official | 376:cb4d9db17537 | 315 | } |
| mbed_official | 376:cb4d9db17537 | 316 | else if (hdma->Instance == DMA1_Channel7) |
| mbed_official | 376:cb4d9db17537 | 317 | { |
| mbed_official | 376:cb4d9db17537 | 318 | /*Reset DMA request*/ |
| mbed_official | 376:cb4d9db17537 | 319 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C7S; |
| mbed_official | 376:cb4d9db17537 | 320 | } |
| mbed_official | 376:cb4d9db17537 | 321 | |
| mbed_official | 376:cb4d9db17537 | 322 | /* Initialise the error code */ |
| mbed_official | 376:cb4d9db17537 | 323 | hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
| mbed_official | 376:cb4d9db17537 | 324 | |
| mbed_official | 376:cb4d9db17537 | 325 | /* Initialize the DMA state */ |
| mbed_official | 376:cb4d9db17537 | 326 | hdma->State = HAL_DMA_STATE_RESET; |
| mbed_official | 376:cb4d9db17537 | 327 | |
| mbed_official | 376:cb4d9db17537 | 328 | /* Release Lock */ |
| mbed_official | 376:cb4d9db17537 | 329 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 330 | |
| mbed_official | 376:cb4d9db17537 | 331 | return HAL_OK; |
| mbed_official | 376:cb4d9db17537 | 332 | } |
| mbed_official | 376:cb4d9db17537 | 333 | |
| mbed_official | 376:cb4d9db17537 | 334 | /** |
| mbed_official | 376:cb4d9db17537 | 335 | * @} |
| mbed_official | 376:cb4d9db17537 | 336 | */ |
| mbed_official | 376:cb4d9db17537 | 337 | |
| mbed_official | 376:cb4d9db17537 | 338 | /** @defgroup DMA_Group2 I/O operation functions |
| mbed_official | 376:cb4d9db17537 | 339 | * @brief I/O operation functions |
| mbed_official | 376:cb4d9db17537 | 340 | * |
| mbed_official | 376:cb4d9db17537 | 341 | @verbatim |
| mbed_official | 376:cb4d9db17537 | 342 | =============================================================================== |
| mbed_official | 376:cb4d9db17537 | 343 | ##### IO operation functions ##### |
| mbed_official | 376:cb4d9db17537 | 344 | =============================================================================== |
| mbed_official | 376:cb4d9db17537 | 345 | [..] This section provides functions allowing to: |
| mbed_official | 376:cb4d9db17537 | 346 | (+) Configure the source, destination address and data length and Start DMA transfer |
| mbed_official | 376:cb4d9db17537 | 347 | (+) Configure the source, destination address and data length and |
| mbed_official | 376:cb4d9db17537 | 348 | Start DMA transfer with interrupt |
| mbed_official | 376:cb4d9db17537 | 349 | (+) Abort DMA transfer |
| mbed_official | 376:cb4d9db17537 | 350 | (+) Poll for transfer complete |
| mbed_official | 376:cb4d9db17537 | 351 | (+) Handle DMA interrupt request |
| mbed_official | 376:cb4d9db17537 | 352 | |
| mbed_official | 376:cb4d9db17537 | 353 | @endverbatim |
| mbed_official | 376:cb4d9db17537 | 354 | * @{ |
| mbed_official | 376:cb4d9db17537 | 355 | */ |
| mbed_official | 376:cb4d9db17537 | 356 | |
| mbed_official | 376:cb4d9db17537 | 357 | /** |
| mbed_official | 376:cb4d9db17537 | 358 | * @brief Starts the DMA Transfer. |
| mbed_official | 376:cb4d9db17537 | 359 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 360 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 361 | * @param SrcAddress: The source memory Buffer address |
| mbed_official | 376:cb4d9db17537 | 362 | * @param DstAddress: The destination memory Buffer address |
| mbed_official | 376:cb4d9db17537 | 363 | * @param DataLength: The length of data to be transferred from source to destination |
| mbed_official | 376:cb4d9db17537 | 364 | * @retval HAL status |
| mbed_official | 376:cb4d9db17537 | 365 | */ |
| mbed_official | 376:cb4d9db17537 | 366 | HAL_StatusTypeDef HAL_DMA_Start(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
| mbed_official | 376:cb4d9db17537 | 367 | { |
| mbed_official | 376:cb4d9db17537 | 368 | /* Process locked */ |
| mbed_official | 376:cb4d9db17537 | 369 | __HAL_LOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 370 | |
| mbed_official | 376:cb4d9db17537 | 371 | /* Change DMA peripheral state */ |
| mbed_official | 376:cb4d9db17537 | 372 | hdma->State = HAL_DMA_STATE_BUSY; |
| mbed_official | 376:cb4d9db17537 | 373 | |
| mbed_official | 376:cb4d9db17537 | 374 | /* Check the parameters */ |
| mbed_official | 376:cb4d9db17537 | 375 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
| mbed_official | 376:cb4d9db17537 | 376 | |
| mbed_official | 376:cb4d9db17537 | 377 | /* Disable the peripheral */ |
| mbed_official | 376:cb4d9db17537 | 378 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 376:cb4d9db17537 | 379 | |
| mbed_official | 376:cb4d9db17537 | 380 | /* Configure the source, destination address and the data length */ |
| mbed_official | 376:cb4d9db17537 | 381 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
| mbed_official | 376:cb4d9db17537 | 382 | |
| mbed_official | 376:cb4d9db17537 | 383 | /* Enable the Peripheral */ |
| mbed_official | 376:cb4d9db17537 | 384 | __HAL_DMA_ENABLE(hdma); |
| mbed_official | 376:cb4d9db17537 | 385 | |
| mbed_official | 376:cb4d9db17537 | 386 | return HAL_OK; |
| mbed_official | 376:cb4d9db17537 | 387 | } |
| mbed_official | 376:cb4d9db17537 | 388 | |
| mbed_official | 376:cb4d9db17537 | 389 | /** |
| mbed_official | 376:cb4d9db17537 | 390 | * @brief Start the DMA Transfer with interrupt enabled. |
| mbed_official | 376:cb4d9db17537 | 391 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 392 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 393 | * @param SrcAddress: The source memory Buffer address |
| mbed_official | 376:cb4d9db17537 | 394 | * @param DstAddress: The destination memory Buffer address |
| mbed_official | 376:cb4d9db17537 | 395 | * @param DataLength: The length of data to be transferred from source to destination |
| mbed_official | 376:cb4d9db17537 | 396 | * @retval HAL status |
| mbed_official | 376:cb4d9db17537 | 397 | */ |
| mbed_official | 376:cb4d9db17537 | 398 | HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
| mbed_official | 376:cb4d9db17537 | 399 | { |
| mbed_official | 376:cb4d9db17537 | 400 | /* Process locked */ |
| mbed_official | 376:cb4d9db17537 | 401 | __HAL_LOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 402 | |
| mbed_official | 376:cb4d9db17537 | 403 | /* Change DMA peripheral state */ |
| mbed_official | 376:cb4d9db17537 | 404 | hdma->State = HAL_DMA_STATE_BUSY; |
| mbed_official | 376:cb4d9db17537 | 405 | |
| mbed_official | 376:cb4d9db17537 | 406 | /* Check the parameters */ |
| mbed_official | 376:cb4d9db17537 | 407 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
| mbed_official | 376:cb4d9db17537 | 408 | |
| mbed_official | 376:cb4d9db17537 | 409 | /* Disable the peripheral */ |
| mbed_official | 376:cb4d9db17537 | 410 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 376:cb4d9db17537 | 411 | |
| mbed_official | 376:cb4d9db17537 | 412 | /* Configure the source, destination address and the data length */ |
| mbed_official | 376:cb4d9db17537 | 413 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
| mbed_official | 376:cb4d9db17537 | 414 | |
| mbed_official | 376:cb4d9db17537 | 415 | /* Enable the transfer complete interrupt */ |
| mbed_official | 376:cb4d9db17537 | 416 | __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TC); |
| mbed_official | 376:cb4d9db17537 | 417 | |
| mbed_official | 376:cb4d9db17537 | 418 | /* Enable the Half transfer complete interrupt */ |
| mbed_official | 376:cb4d9db17537 | 419 | __HAL_DMA_ENABLE_IT(hdma, DMA_IT_HT); |
| mbed_official | 376:cb4d9db17537 | 420 | |
| mbed_official | 376:cb4d9db17537 | 421 | /* Enable the transfer Error interrupt */ |
| mbed_official | 376:cb4d9db17537 | 422 | __HAL_DMA_ENABLE_IT(hdma, DMA_IT_TE); |
| mbed_official | 376:cb4d9db17537 | 423 | |
| mbed_official | 376:cb4d9db17537 | 424 | /* Enable the Peripheral */ |
| mbed_official | 376:cb4d9db17537 | 425 | __HAL_DMA_ENABLE(hdma); |
| mbed_official | 376:cb4d9db17537 | 426 | |
| mbed_official | 376:cb4d9db17537 | 427 | return HAL_OK; |
| mbed_official | 376:cb4d9db17537 | 428 | } |
| mbed_official | 376:cb4d9db17537 | 429 | |
| mbed_official | 376:cb4d9db17537 | 430 | /** |
| mbed_official | 376:cb4d9db17537 | 431 | * @brief Aborts the DMA Transfer. |
| mbed_official | 376:cb4d9db17537 | 432 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 433 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 434 | * @param Timeout: Timeout duration |
| mbed_official | 376:cb4d9db17537 | 435 | * @retval HAL status |
| mbed_official | 376:cb4d9db17537 | 436 | */ |
| mbed_official | 376:cb4d9db17537 | 437 | HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma) |
| mbed_official | 376:cb4d9db17537 | 438 | { |
| mbed_official | 376:cb4d9db17537 | 439 | uint32_t tickstart = 0; |
| mbed_official | 376:cb4d9db17537 | 440 | |
| mbed_official | 376:cb4d9db17537 | 441 | /* Disable the channel */ |
| mbed_official | 376:cb4d9db17537 | 442 | __HAL_DMA_DISABLE(hdma); |
| mbed_official | 376:cb4d9db17537 | 443 | |
| mbed_official | 376:cb4d9db17537 | 444 | /* Get timeout */ |
| mbed_official | 376:cb4d9db17537 | 445 | tickstart = HAL_GetTick(); |
| mbed_official | 376:cb4d9db17537 | 446 | |
| mbed_official | 376:cb4d9db17537 | 447 | /* Check if the DMA Channel is effectively disabled */ |
| mbed_official | 376:cb4d9db17537 | 448 | while((hdma->Instance->CCR & DMA_CCR_EN) != 0) |
| mbed_official | 376:cb4d9db17537 | 449 | { |
| mbed_official | 376:cb4d9db17537 | 450 | /* Check for the Timeout */ |
| mbed_official | 376:cb4d9db17537 | 451 | if( (HAL_GetTick() - tickstart ) > HAL_TIMEOUT_DMA_ABORT) |
| mbed_official | 376:cb4d9db17537 | 452 | { |
| mbed_official | 376:cb4d9db17537 | 453 | /* Update error code */ |
| mbed_official | 376:cb4d9db17537 | 454 | hdma->ErrorCode |= HAL_DMA_ERROR_TIMEOUT; |
| mbed_official | 376:cb4d9db17537 | 455 | |
| mbed_official | 376:cb4d9db17537 | 456 | /* Process Unlocked */ |
| mbed_official | 376:cb4d9db17537 | 457 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 458 | |
| mbed_official | 376:cb4d9db17537 | 459 | /* Change the DMA state */ |
| mbed_official | 376:cb4d9db17537 | 460 | hdma->State = HAL_DMA_STATE_TIMEOUT; |
| mbed_official | 376:cb4d9db17537 | 461 | |
| mbed_official | 376:cb4d9db17537 | 462 | return HAL_TIMEOUT; |
| mbed_official | 376:cb4d9db17537 | 463 | } |
| mbed_official | 376:cb4d9db17537 | 464 | } |
| mbed_official | 376:cb4d9db17537 | 465 | /* Process Unlocked */ |
| mbed_official | 376:cb4d9db17537 | 466 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 467 | |
| mbed_official | 376:cb4d9db17537 | 468 | /* Change the DMA state*/ |
| mbed_official | 376:cb4d9db17537 | 469 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 376:cb4d9db17537 | 470 | |
| mbed_official | 376:cb4d9db17537 | 471 | return HAL_OK; |
| mbed_official | 376:cb4d9db17537 | 472 | } |
| mbed_official | 376:cb4d9db17537 | 473 | |
| mbed_official | 376:cb4d9db17537 | 474 | /** |
| mbed_official | 376:cb4d9db17537 | 475 | * @brief Polling for transfer complete. |
| mbed_official | 376:cb4d9db17537 | 476 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 477 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 478 | * @param CompleteLevel: Specifies the DMA level complete. |
| mbed_official | 376:cb4d9db17537 | 479 | * @param Timeout: Timeout duration. |
| mbed_official | 376:cb4d9db17537 | 480 | * @retval HAL status |
| mbed_official | 376:cb4d9db17537 | 481 | */ |
| mbed_official | 376:cb4d9db17537 | 482 | HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t CompleteLevel, uint32_t Timeout) |
| mbed_official | 376:cb4d9db17537 | 483 | { |
| mbed_official | 376:cb4d9db17537 | 484 | uint32_t temp; |
| mbed_official | 376:cb4d9db17537 | 485 | uint32_t tickstart = 0; |
| mbed_official | 376:cb4d9db17537 | 486 | |
| mbed_official | 376:cb4d9db17537 | 487 | /* Get the level transfer complete flag */ |
| mbed_official | 376:cb4d9db17537 | 488 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
| mbed_official | 376:cb4d9db17537 | 489 | { |
| mbed_official | 376:cb4d9db17537 | 490 | /* Transfer Complete flag */ |
| mbed_official | 376:cb4d9db17537 | 491 | temp = __HAL_DMA_GET_TC_FLAG_INDEX(hdma); |
| mbed_official | 376:cb4d9db17537 | 492 | } |
| mbed_official | 376:cb4d9db17537 | 493 | else |
| mbed_official | 376:cb4d9db17537 | 494 | { |
| mbed_official | 376:cb4d9db17537 | 495 | /* Half Transfer Complete flag */ |
| mbed_official | 376:cb4d9db17537 | 496 | temp = __HAL_DMA_GET_HT_FLAG_INDEX(hdma); |
| mbed_official | 376:cb4d9db17537 | 497 | } |
| mbed_official | 376:cb4d9db17537 | 498 | |
| mbed_official | 376:cb4d9db17537 | 499 | /* Get timeout */ |
| mbed_official | 376:cb4d9db17537 | 500 | tickstart = HAL_GetTick(); |
| mbed_official | 376:cb4d9db17537 | 501 | |
| mbed_official | 376:cb4d9db17537 | 502 | while(__HAL_DMA_GET_FLAG(hdma, temp) == RESET) |
| mbed_official | 376:cb4d9db17537 | 503 | { |
| mbed_official | 376:cb4d9db17537 | 504 | if((__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET)) |
| mbed_official | 376:cb4d9db17537 | 505 | { |
| mbed_official | 376:cb4d9db17537 | 506 | /* Clear the transfer error flags */ |
| mbed_official | 376:cb4d9db17537 | 507 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 508 | |
| mbed_official | 376:cb4d9db17537 | 509 | /* Update error code */ |
| mbed_official | 376:cb4d9db17537 | 510 | SET_BIT(hdma->ErrorCode, HAL_DMA_ERROR_TE); |
| mbed_official | 376:cb4d9db17537 | 511 | |
| mbed_official | 376:cb4d9db17537 | 512 | /* Change the DMA state */ |
| mbed_official | 376:cb4d9db17537 | 513 | hdma->State= HAL_DMA_STATE_ERROR; |
| mbed_official | 376:cb4d9db17537 | 514 | |
| mbed_official | 376:cb4d9db17537 | 515 | /* Process Unlocked */ |
| mbed_official | 376:cb4d9db17537 | 516 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 517 | |
| mbed_official | 376:cb4d9db17537 | 518 | return HAL_ERROR; |
| mbed_official | 376:cb4d9db17537 | 519 | } |
| mbed_official | 376:cb4d9db17537 | 520 | /* Check for the Timeout */ |
| mbed_official | 376:cb4d9db17537 | 521 | if(Timeout != HAL_MAX_DELAY) |
| mbed_official | 376:cb4d9db17537 | 522 | { |
| mbed_official | 376:cb4d9db17537 | 523 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
| mbed_official | 376:cb4d9db17537 | 524 | { |
| mbed_official | 376:cb4d9db17537 | 525 | /* Update error code */ |
| mbed_official | 376:cb4d9db17537 | 526 | SET_BIT(hdma->ErrorCode, HAL_DMA_ERROR_TIMEOUT); |
| mbed_official | 376:cb4d9db17537 | 527 | |
| mbed_official | 376:cb4d9db17537 | 528 | /* Change the DMA state */ |
| mbed_official | 376:cb4d9db17537 | 529 | hdma->State= HAL_DMA_STATE_TIMEOUT; |
| mbed_official | 376:cb4d9db17537 | 530 | |
| mbed_official | 376:cb4d9db17537 | 531 | /* Process Unlocked */ |
| mbed_official | 376:cb4d9db17537 | 532 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 533 | |
| mbed_official | 376:cb4d9db17537 | 534 | return HAL_TIMEOUT; |
| mbed_official | 376:cb4d9db17537 | 535 | } |
| mbed_official | 376:cb4d9db17537 | 536 | } |
| mbed_official | 376:cb4d9db17537 | 537 | } |
| mbed_official | 376:cb4d9db17537 | 538 | |
| mbed_official | 376:cb4d9db17537 | 539 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
| mbed_official | 376:cb4d9db17537 | 540 | { |
| mbed_official | 376:cb4d9db17537 | 541 | /* Clear the transfer complete flag */ |
| mbed_official | 376:cb4d9db17537 | 542 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 543 | |
| mbed_official | 376:cb4d9db17537 | 544 | /* The selected Channelx EN bit is cleared (DMA is disabled and |
| mbed_official | 376:cb4d9db17537 | 545 | all transfers are complete) */ |
| mbed_official | 376:cb4d9db17537 | 546 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 376:cb4d9db17537 | 547 | |
| mbed_official | 376:cb4d9db17537 | 548 | /* Process unlocked */ |
| mbed_official | 376:cb4d9db17537 | 549 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 550 | } |
| mbed_official | 376:cb4d9db17537 | 551 | else |
| mbed_official | 376:cb4d9db17537 | 552 | { |
| mbed_official | 376:cb4d9db17537 | 553 | /* Clear the half transfer complete flag */ |
| mbed_official | 376:cb4d9db17537 | 554 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 555 | |
| mbed_official | 376:cb4d9db17537 | 556 | /* The selected Channelx EN bit is cleared (DMA is disabled and |
| mbed_official | 376:cb4d9db17537 | 557 | all transfers are complete) */ |
| mbed_official | 376:cb4d9db17537 | 558 | hdma->State = HAL_DMA_STATE_READY_HALF; |
| mbed_official | 376:cb4d9db17537 | 559 | |
| mbed_official | 376:cb4d9db17537 | 560 | /* Process unlocked */ |
| mbed_official | 376:cb4d9db17537 | 561 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 562 | } |
| mbed_official | 376:cb4d9db17537 | 563 | |
| mbed_official | 376:cb4d9db17537 | 564 | return HAL_OK; |
| mbed_official | 376:cb4d9db17537 | 565 | } |
| mbed_official | 376:cb4d9db17537 | 566 | /** |
| mbed_official | 376:cb4d9db17537 | 567 | * @brief Handles DMA interrupt request. |
| mbed_official | 376:cb4d9db17537 | 568 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 569 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 570 | * @retval None |
| mbed_official | 376:cb4d9db17537 | 571 | */ |
| mbed_official | 376:cb4d9db17537 | 572 | void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) |
| mbed_official | 376:cb4d9db17537 | 573 | { |
| mbed_official | 376:cb4d9db17537 | 574 | /* Transfer Error Interrupt management ***************************************/ |
| mbed_official | 376:cb4d9db17537 | 575 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET) |
| mbed_official | 376:cb4d9db17537 | 576 | { |
| mbed_official | 376:cb4d9db17537 | 577 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TE) != RESET) |
| mbed_official | 376:cb4d9db17537 | 578 | { |
| mbed_official | 376:cb4d9db17537 | 579 | /* Disable the transfer error interrupt */ |
| mbed_official | 376:cb4d9db17537 | 580 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TE); |
| mbed_official | 376:cb4d9db17537 | 581 | |
| mbed_official | 376:cb4d9db17537 | 582 | /* Clear the transfer error flag */ |
| mbed_official | 376:cb4d9db17537 | 583 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 584 | |
| mbed_official | 376:cb4d9db17537 | 585 | /* Update error code */ |
| mbed_official | 376:cb4d9db17537 | 586 | hdma->ErrorCode |= HAL_DMA_ERROR_TE; |
| mbed_official | 376:cb4d9db17537 | 587 | |
| mbed_official | 376:cb4d9db17537 | 588 | /* Change the DMA state */ |
| mbed_official | 376:cb4d9db17537 | 589 | hdma->State = HAL_DMA_STATE_ERROR; |
| mbed_official | 376:cb4d9db17537 | 590 | |
| mbed_official | 376:cb4d9db17537 | 591 | /* Process Unlocked */ |
| mbed_official | 376:cb4d9db17537 | 592 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 593 | |
| mbed_official | 376:cb4d9db17537 | 594 | if (hdma->XferErrorCallback != NULL) |
| mbed_official | 376:cb4d9db17537 | 595 | { |
| mbed_official | 376:cb4d9db17537 | 596 | /* Transfer error callback */ |
| mbed_official | 376:cb4d9db17537 | 597 | hdma->XferErrorCallback(hdma); |
| mbed_official | 376:cb4d9db17537 | 598 | } |
| mbed_official | 376:cb4d9db17537 | 599 | } |
| mbed_official | 376:cb4d9db17537 | 600 | } |
| mbed_official | 376:cb4d9db17537 | 601 | |
| mbed_official | 376:cb4d9db17537 | 602 | /* Half Transfer Complete Interrupt management ******************************/ |
| mbed_official | 376:cb4d9db17537 | 603 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)) != RESET) |
| mbed_official | 376:cb4d9db17537 | 604 | { |
| mbed_official | 376:cb4d9db17537 | 605 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_HT) != RESET) |
| mbed_official | 376:cb4d9db17537 | 606 | { |
| mbed_official | 376:cb4d9db17537 | 607 | /* Disable the half transfer interrupt if the DMA mode is not CIRCULAR */ |
| mbed_official | 376:cb4d9db17537 | 608 | if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0) |
| mbed_official | 376:cb4d9db17537 | 609 | { |
| mbed_official | 376:cb4d9db17537 | 610 | /* Disable the half transfer interrupt */ |
| mbed_official | 376:cb4d9db17537 | 611 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT); |
| mbed_official | 376:cb4d9db17537 | 612 | } |
| mbed_official | 376:cb4d9db17537 | 613 | /* Clear the half transfer complete flag */ |
| mbed_official | 376:cb4d9db17537 | 614 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 615 | |
| mbed_official | 376:cb4d9db17537 | 616 | /* Change DMA peripheral state */ |
| mbed_official | 376:cb4d9db17537 | 617 | hdma->State = HAL_DMA_STATE_READY_HALF; |
| mbed_official | 376:cb4d9db17537 | 618 | |
| mbed_official | 376:cb4d9db17537 | 619 | if(hdma->XferHalfCpltCallback != NULL) |
| mbed_official | 376:cb4d9db17537 | 620 | { |
| mbed_official | 376:cb4d9db17537 | 621 | /* Half transfer callback */ |
| mbed_official | 376:cb4d9db17537 | 622 | hdma->XferHalfCpltCallback(hdma); |
| mbed_official | 376:cb4d9db17537 | 623 | } |
| mbed_official | 376:cb4d9db17537 | 624 | } |
| mbed_official | 376:cb4d9db17537 | 625 | } |
| mbed_official | 376:cb4d9db17537 | 626 | |
| mbed_official | 376:cb4d9db17537 | 627 | /* Transfer Complete Interrupt management ***********************************/ |
| mbed_official | 376:cb4d9db17537 | 628 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)) != RESET) |
| mbed_official | 376:cb4d9db17537 | 629 | { |
| mbed_official | 376:cb4d9db17537 | 630 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TC) != RESET) |
| mbed_official | 376:cb4d9db17537 | 631 | { |
| mbed_official | 376:cb4d9db17537 | 632 | if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0) |
| mbed_official | 376:cb4d9db17537 | 633 | { |
| mbed_official | 376:cb4d9db17537 | 634 | /* Disable the transfer complete interrupt */ |
| mbed_official | 376:cb4d9db17537 | 635 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TC); |
| mbed_official | 376:cb4d9db17537 | 636 | } |
| mbed_official | 376:cb4d9db17537 | 637 | /* Clear the transfer complete flag */ |
| mbed_official | 376:cb4d9db17537 | 638 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
| mbed_official | 376:cb4d9db17537 | 639 | |
| mbed_official | 376:cb4d9db17537 | 640 | /* Update error code */ |
| mbed_official | 376:cb4d9db17537 | 641 | hdma->ErrorCode |= HAL_DMA_ERROR_NONE; |
| mbed_official | 376:cb4d9db17537 | 642 | |
| mbed_official | 376:cb4d9db17537 | 643 | /* Change the DMA state */ |
| mbed_official | 376:cb4d9db17537 | 644 | hdma->State = HAL_DMA_STATE_READY; |
| mbed_official | 376:cb4d9db17537 | 645 | |
| mbed_official | 376:cb4d9db17537 | 646 | /* Process Unlocked */ |
| mbed_official | 376:cb4d9db17537 | 647 | __HAL_UNLOCK(hdma); |
| mbed_official | 376:cb4d9db17537 | 648 | |
| mbed_official | 376:cb4d9db17537 | 649 | if(hdma->XferCpltCallback != NULL) |
| mbed_official | 376:cb4d9db17537 | 650 | { |
| mbed_official | 376:cb4d9db17537 | 651 | /* Transfer complete callback */ |
| mbed_official | 376:cb4d9db17537 | 652 | hdma->XferCpltCallback(hdma); |
| mbed_official | 376:cb4d9db17537 | 653 | } |
| mbed_official | 376:cb4d9db17537 | 654 | } |
| mbed_official | 376:cb4d9db17537 | 655 | } |
| mbed_official | 376:cb4d9db17537 | 656 | } |
| mbed_official | 376:cb4d9db17537 | 657 | |
| mbed_official | 376:cb4d9db17537 | 658 | /** |
| mbed_official | 376:cb4d9db17537 | 659 | * @} |
| mbed_official | 376:cb4d9db17537 | 660 | */ |
| mbed_official | 376:cb4d9db17537 | 661 | |
| mbed_official | 376:cb4d9db17537 | 662 | /** @defgroup DMA_Group3 Peripheral State functions |
| mbed_official | 376:cb4d9db17537 | 663 | * @brief Peripheral State functions |
| mbed_official | 376:cb4d9db17537 | 664 | * |
| mbed_official | 376:cb4d9db17537 | 665 | @verbatim |
| mbed_official | 376:cb4d9db17537 | 666 | =============================================================================== |
| mbed_official | 376:cb4d9db17537 | 667 | ##### Peripheral State functions ##### |
| mbed_official | 376:cb4d9db17537 | 668 | =============================================================================== |
| mbed_official | 376:cb4d9db17537 | 669 | [..] |
| mbed_official | 376:cb4d9db17537 | 670 | This subsection provides functions allowing to |
| mbed_official | 376:cb4d9db17537 | 671 | (+) Check the DMA state |
| mbed_official | 376:cb4d9db17537 | 672 | (+) Get error code |
| mbed_official | 376:cb4d9db17537 | 673 | |
| mbed_official | 376:cb4d9db17537 | 674 | @endverbatim |
| mbed_official | 376:cb4d9db17537 | 675 | * @{ |
| mbed_official | 376:cb4d9db17537 | 676 | */ |
| mbed_official | 376:cb4d9db17537 | 677 | |
| mbed_official | 376:cb4d9db17537 | 678 | /** |
| mbed_official | 376:cb4d9db17537 | 679 | * @brief Returns the DMA state. |
| mbed_official | 376:cb4d9db17537 | 680 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 681 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 682 | * @retval HAL state |
| mbed_official | 376:cb4d9db17537 | 683 | */ |
| mbed_official | 376:cb4d9db17537 | 684 | HAL_DMA_StateTypeDef HAL_DMA_GetState(DMA_HandleTypeDef *hdma) |
| mbed_official | 376:cb4d9db17537 | 685 | { |
| mbed_official | 376:cb4d9db17537 | 686 | return hdma->State; |
| mbed_official | 376:cb4d9db17537 | 687 | } |
| mbed_official | 376:cb4d9db17537 | 688 | |
| mbed_official | 376:cb4d9db17537 | 689 | /** |
| mbed_official | 376:cb4d9db17537 | 690 | * @brief Return the DMA error code |
| mbed_official | 376:cb4d9db17537 | 691 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 692 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 693 | * @retval DMA Error Code |
| mbed_official | 376:cb4d9db17537 | 694 | */ |
| mbed_official | 376:cb4d9db17537 | 695 | uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma) |
| mbed_official | 376:cb4d9db17537 | 696 | { |
| mbed_official | 376:cb4d9db17537 | 697 | return hdma->ErrorCode; |
| mbed_official | 376:cb4d9db17537 | 698 | } |
| mbed_official | 376:cb4d9db17537 | 699 | |
| mbed_official | 376:cb4d9db17537 | 700 | /** |
| mbed_official | 376:cb4d9db17537 | 701 | * @} |
| mbed_official | 376:cb4d9db17537 | 702 | */ |
| mbed_official | 376:cb4d9db17537 | 703 | |
| mbed_official | 376:cb4d9db17537 | 704 | /** |
| mbed_official | 376:cb4d9db17537 | 705 | * @brief Sets the DMA Transfer parameter. |
| mbed_official | 376:cb4d9db17537 | 706 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
| mbed_official | 376:cb4d9db17537 | 707 | * the configuration information for the specified DMA Channel. |
| mbed_official | 376:cb4d9db17537 | 708 | * @param SrcAddress: The source memory Buffer address |
| mbed_official | 376:cb4d9db17537 | 709 | * @param DstAddress: The destination memory Buffer address |
| mbed_official | 376:cb4d9db17537 | 710 | * @param DataLength: The length of data to be transferred from source to destination |
| mbed_official | 376:cb4d9db17537 | 711 | * @retval HAL status |
| mbed_official | 376:cb4d9db17537 | 712 | */ |
| mbed_official | 376:cb4d9db17537 | 713 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
| mbed_official | 376:cb4d9db17537 | 714 | { |
| mbed_official | 376:cb4d9db17537 | 715 | /* Configure DMA Channel data length */ |
| mbed_official | 376:cb4d9db17537 | 716 | hdma->Instance->CNDTR = DataLength; |
| mbed_official | 376:cb4d9db17537 | 717 | |
| mbed_official | 376:cb4d9db17537 | 718 | /* Peripheral to Memory */ |
| mbed_official | 376:cb4d9db17537 | 719 | if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH) |
| mbed_official | 376:cb4d9db17537 | 720 | { |
| mbed_official | 376:cb4d9db17537 | 721 | /* Configure DMA Channel destination address */ |
| mbed_official | 376:cb4d9db17537 | 722 | hdma->Instance->CPAR = DstAddress; |
| mbed_official | 376:cb4d9db17537 | 723 | |
| mbed_official | 376:cb4d9db17537 | 724 | /* Configure DMA Channel source address */ |
| mbed_official | 376:cb4d9db17537 | 725 | hdma->Instance->CMAR = SrcAddress; |
| mbed_official | 376:cb4d9db17537 | 726 | } |
| mbed_official | 376:cb4d9db17537 | 727 | /* Memory to Peripheral */ |
| mbed_official | 376:cb4d9db17537 | 728 | else |
| mbed_official | 376:cb4d9db17537 | 729 | { |
| mbed_official | 376:cb4d9db17537 | 730 | /* Configure DMA Channel source address */ |
| mbed_official | 376:cb4d9db17537 | 731 | hdma->Instance->CPAR = SrcAddress; |
| mbed_official | 376:cb4d9db17537 | 732 | |
| mbed_official | 376:cb4d9db17537 | 733 | /* Configure DMA Channel destination address */ |
| mbed_official | 376:cb4d9db17537 | 734 | hdma->Instance->CMAR = DstAddress; |
| mbed_official | 376:cb4d9db17537 | 735 | } |
| mbed_official | 376:cb4d9db17537 | 736 | } |
| mbed_official | 376:cb4d9db17537 | 737 | |
| mbed_official | 376:cb4d9db17537 | 738 | /** |
| mbed_official | 376:cb4d9db17537 | 739 | * @} |
| mbed_official | 376:cb4d9db17537 | 740 | */ |
| mbed_official | 376:cb4d9db17537 | 741 | |
| mbed_official | 376:cb4d9db17537 | 742 | #endif /* HAL_DMA_MODULE_ENABLED */ |
| mbed_official | 376:cb4d9db17537 | 743 | /** |
| mbed_official | 376:cb4d9db17537 | 744 | * @} |
| mbed_official | 376:cb4d9db17537 | 745 | */ |
| mbed_official | 376:cb4d9db17537 | 746 | |
| mbed_official | 376:cb4d9db17537 | 747 | /** |
| mbed_official | 376:cb4d9db17537 | 748 | * @} |
| mbed_official | 376:cb4d9db17537 | 749 | */ |
| mbed_official | 376:cb4d9db17537 | 750 | |
| mbed_official | 376:cb4d9db17537 | 751 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |