Hal Drivers for L4
Dependents: BSP OneHopeOnePrayer FINAL_AUDIO_RECORD AudioDemo
Fork of STM32L4xx_HAL_Driver by
Src/stm32l4xx_hal_dma.c@2:7aef7655b0a8, 2015-11-25 (annotated)
- Committer:
- EricLew
- Date:
- Wed Nov 25 17:30:43 2015 +0000
- Revision:
- 2:7aef7655b0a8
- Parent:
- 0:80ee8f3b695e
commit;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
EricLew | 0:80ee8f3b695e | 1 | /** |
EricLew | 0:80ee8f3b695e | 2 | ****************************************************************************** |
EricLew | 0:80ee8f3b695e | 3 | * @file stm32l4xx_hal_dma.c |
EricLew | 0:80ee8f3b695e | 4 | * @author MCD Application Team |
EricLew | 0:80ee8f3b695e | 5 | * @version V1.1.0 |
EricLew | 0:80ee8f3b695e | 6 | * @date 16-September-2015 |
EricLew | 0:80ee8f3b695e | 7 | * @brief DMA HAL module driver. |
EricLew | 0:80ee8f3b695e | 8 | * |
EricLew | 0:80ee8f3b695e | 9 | * This file provides firmware functions to manage the following |
EricLew | 0:80ee8f3b695e | 10 | * functionalities of the Direct Memory Access (DMA) peripheral: |
EricLew | 0:80ee8f3b695e | 11 | * + Initialization and de-initialization functions |
EricLew | 0:80ee8f3b695e | 12 | * + IO operation functions |
EricLew | 0:80ee8f3b695e | 13 | * + Peripheral State and errors functions |
EricLew | 0:80ee8f3b695e | 14 | @verbatim |
EricLew | 0:80ee8f3b695e | 15 | ============================================================================== |
EricLew | 0:80ee8f3b695e | 16 | ##### How to use this driver ##### |
EricLew | 0:80ee8f3b695e | 17 | ============================================================================== |
EricLew | 0:80ee8f3b695e | 18 | [..] |
EricLew | 0:80ee8f3b695e | 19 | (#) Enable and configure the peripheral to be connected to the DMA Channel |
EricLew | 0:80ee8f3b695e | 20 | (except for internal SRAM / FLASH memories: no initialization is |
EricLew | 0:80ee8f3b695e | 21 | necessary). Please refer to the Reference manual for connection between peripherals |
EricLew | 0:80ee8f3b695e | 22 | and DMA requests. |
EricLew | 0:80ee8f3b695e | 23 | |
EricLew | 0:80ee8f3b695e | 24 | (#) For a given Channel, program the required configuration through the following parameters: |
EricLew | 0:80ee8f3b695e | 25 | Channel request, Transfer Direction, Source and Destination data formats, |
EricLew | 0:80ee8f3b695e | 26 | Circular or Normal mode, Channel Priority level, Source and Destination Increment mode |
EricLew | 0:80ee8f3b695e | 27 | using HAL_DMA_Init() function. |
EricLew | 0:80ee8f3b695e | 28 | |
EricLew | 0:80ee8f3b695e | 29 | (#) Use HAL_DMA_GetState() function to return the DMA state and HAL_DMA_GetError() in case of error |
EricLew | 0:80ee8f3b695e | 30 | detection. |
EricLew | 0:80ee8f3b695e | 31 | |
EricLew | 0:80ee8f3b695e | 32 | (#) Use HAL_DMA_Abort() function to abort the current transfer |
EricLew | 0:80ee8f3b695e | 33 | |
EricLew | 0:80ee8f3b695e | 34 | -@- In Memory-to-Memory transfer mode, Circular mode is not allowed. |
EricLew | 0:80ee8f3b695e | 35 | *** Polling mode IO operation *** |
EricLew | 0:80ee8f3b695e | 36 | ================================= |
EricLew | 0:80ee8f3b695e | 37 | [..] |
EricLew | 0:80ee8f3b695e | 38 | (+) Use HAL_DMA_Start() to start DMA transfer after the configuration of Source |
EricLew | 0:80ee8f3b695e | 39 | address and destination address and the Length of data to be transferred |
EricLew | 0:80ee8f3b695e | 40 | (+) Use HAL_DMA_PollForTransfer() to poll for the end of current transfer, in this |
EricLew | 0:80ee8f3b695e | 41 | case a fixed Timeout can be configured by User depending from his application. |
EricLew | 0:80ee8f3b695e | 42 | |
EricLew | 0:80ee8f3b695e | 43 | *** Interrupt mode IO operation *** |
EricLew | 0:80ee8f3b695e | 44 | =================================== |
EricLew | 0:80ee8f3b695e | 45 | [..] |
EricLew | 0:80ee8f3b695e | 46 | (+) Configure the DMA interrupt priority using HAL_NVIC_SetPriority() |
EricLew | 0:80ee8f3b695e | 47 | (+) Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ() |
EricLew | 0:80ee8f3b695e | 48 | (+) Use HAL_DMA_Start_IT() to start DMA transfer after the configuration of |
EricLew | 0:80ee8f3b695e | 49 | Source address and destination address and the Length of data to be transferred. |
EricLew | 0:80ee8f3b695e | 50 | In this case the DMA interrupt is configured |
EricLew | 0:80ee8f3b695e | 51 | (+) Use HAL_DMA_IRQHandler() called under DMA_IRQHandler() Interrupt subroutine |
EricLew | 0:80ee8f3b695e | 52 | (+) At the end of data transfer HAL_DMA_IRQHandler() function is executed and user can |
EricLew | 0:80ee8f3b695e | 53 | add his own function by customization of function pointer XferCpltCallback and |
EricLew | 0:80ee8f3b695e | 54 | XferErrorCallback (i.e. a member of DMA handle structure). |
EricLew | 0:80ee8f3b695e | 55 | |
EricLew | 0:80ee8f3b695e | 56 | *** DMA HAL driver macros list *** |
EricLew | 0:80ee8f3b695e | 57 | ============================================= |
EricLew | 0:80ee8f3b695e | 58 | [..] |
EricLew | 0:80ee8f3b695e | 59 | Below the list of most used macros in DMA HAL driver. |
EricLew | 0:80ee8f3b695e | 60 | |
EricLew | 0:80ee8f3b695e | 61 | (+) __HAL_DMA_ENABLE: Enable the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 62 | (+) __HAL_DMA_DISABLE: Disable the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 63 | (+) __HAL_DMA_GET_FLAG: Get the DMA Channel pending flags. |
EricLew | 0:80ee8f3b695e | 64 | (+) __HAL_DMA_CLEAR_FLAG: Clear the DMA Channel pending flags. |
EricLew | 0:80ee8f3b695e | 65 | (+) __HAL_DMA_ENABLE_IT: Enable the specified DMA Channel interrupts. |
EricLew | 0:80ee8f3b695e | 66 | (+) __HAL_DMA_DISABLE_IT: Disable the specified DMA Channel interrupts. |
EricLew | 0:80ee8f3b695e | 67 | (+) __HAL_DMA_GET_IT_SOURCE: Check whether the specified DMA Channel interrupt has occurred or not. |
EricLew | 0:80ee8f3b695e | 68 | |
EricLew | 0:80ee8f3b695e | 69 | [..] |
EricLew | 0:80ee8f3b695e | 70 | (@) You can refer to the DMA HAL driver header file for more useful macros |
EricLew | 0:80ee8f3b695e | 71 | |
EricLew | 0:80ee8f3b695e | 72 | @endverbatim |
EricLew | 0:80ee8f3b695e | 73 | ****************************************************************************** |
EricLew | 0:80ee8f3b695e | 74 | * @attention |
EricLew | 0:80ee8f3b695e | 75 | * |
EricLew | 0:80ee8f3b695e | 76 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
EricLew | 0:80ee8f3b695e | 77 | * |
EricLew | 0:80ee8f3b695e | 78 | * Redistribution and use in source and binary forms, with or without modification, |
EricLew | 0:80ee8f3b695e | 79 | * are permitted provided that the following conditions are met: |
EricLew | 0:80ee8f3b695e | 80 | * 1. Redistributions of source code must retain the above copyright notice, |
EricLew | 0:80ee8f3b695e | 81 | * this list of conditions and the following disclaimer. |
EricLew | 0:80ee8f3b695e | 82 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
EricLew | 0:80ee8f3b695e | 83 | * this list of conditions and the following disclaimer in the documentation |
EricLew | 0:80ee8f3b695e | 84 | * and/or other materials provided with the distribution. |
EricLew | 0:80ee8f3b695e | 85 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
EricLew | 0:80ee8f3b695e | 86 | * may be used to endorse or promote products derived from this software |
EricLew | 0:80ee8f3b695e | 87 | * without specific prior written permission. |
EricLew | 0:80ee8f3b695e | 88 | * |
EricLew | 0:80ee8f3b695e | 89 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
EricLew | 0:80ee8f3b695e | 90 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
EricLew | 0:80ee8f3b695e | 91 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
EricLew | 0:80ee8f3b695e | 92 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
EricLew | 0:80ee8f3b695e | 93 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
EricLew | 0:80ee8f3b695e | 94 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
EricLew | 0:80ee8f3b695e | 95 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
EricLew | 0:80ee8f3b695e | 96 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
EricLew | 0:80ee8f3b695e | 97 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
EricLew | 0:80ee8f3b695e | 98 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
EricLew | 0:80ee8f3b695e | 99 | * |
EricLew | 0:80ee8f3b695e | 100 | ****************************************************************************** |
EricLew | 0:80ee8f3b695e | 101 | */ |
EricLew | 0:80ee8f3b695e | 102 | |
EricLew | 0:80ee8f3b695e | 103 | /* Includes ------------------------------------------------------------------*/ |
EricLew | 0:80ee8f3b695e | 104 | #include "stm32l4xx_hal.h" |
EricLew | 0:80ee8f3b695e | 105 | |
EricLew | 0:80ee8f3b695e | 106 | /** @addtogroup STM32L4xx_HAL_Driver |
EricLew | 0:80ee8f3b695e | 107 | * @{ |
EricLew | 0:80ee8f3b695e | 108 | */ |
EricLew | 0:80ee8f3b695e | 109 | |
EricLew | 0:80ee8f3b695e | 110 | /** @defgroup DMA DMA |
EricLew | 0:80ee8f3b695e | 111 | * @brief DMA HAL module driver |
EricLew | 0:80ee8f3b695e | 112 | * @{ |
EricLew | 0:80ee8f3b695e | 113 | */ |
EricLew | 0:80ee8f3b695e | 114 | |
EricLew | 0:80ee8f3b695e | 115 | #ifdef HAL_DMA_MODULE_ENABLED |
EricLew | 0:80ee8f3b695e | 116 | |
EricLew | 0:80ee8f3b695e | 117 | /* Private typedef -----------------------------------------------------------*/ |
EricLew | 0:80ee8f3b695e | 118 | /* Private define ------------------------------------------------------------*/ |
EricLew | 0:80ee8f3b695e | 119 | /** @defgroup DMA_Private_Constants DMA Private Constants |
EricLew | 0:80ee8f3b695e | 120 | * @{ |
EricLew | 0:80ee8f3b695e | 121 | */ |
EricLew | 0:80ee8f3b695e | 122 | #define HAL_TIMEOUT_DMA_ABORT ((uint32_t)1000) /* 1s */ |
EricLew | 0:80ee8f3b695e | 123 | /** |
EricLew | 0:80ee8f3b695e | 124 | * @} |
EricLew | 0:80ee8f3b695e | 125 | */ |
EricLew | 0:80ee8f3b695e | 126 | |
EricLew | 0:80ee8f3b695e | 127 | /* Private macro -------------------------------------------------------------*/ |
EricLew | 0:80ee8f3b695e | 128 | /* Private variables ---------------------------------------------------------*/ |
EricLew | 0:80ee8f3b695e | 129 | /* Private function prototypes -----------------------------------------------*/ |
EricLew | 0:80ee8f3b695e | 130 | /** @defgroup DMA_Private_Functions DMA Private Functions |
EricLew | 0:80ee8f3b695e | 131 | * @{ |
EricLew | 0:80ee8f3b695e | 132 | */ |
EricLew | 0:80ee8f3b695e | 133 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); |
EricLew | 0:80ee8f3b695e | 134 | /** |
EricLew | 0:80ee8f3b695e | 135 | * @} |
EricLew | 0:80ee8f3b695e | 136 | */ |
EricLew | 0:80ee8f3b695e | 137 | |
EricLew | 0:80ee8f3b695e | 138 | /* Exported functions ---------------------------------------------------------*/ |
EricLew | 0:80ee8f3b695e | 139 | |
EricLew | 0:80ee8f3b695e | 140 | /** @defgroup DMA_Exported_Functions DMA Exported Functions |
EricLew | 0:80ee8f3b695e | 141 | * @{ |
EricLew | 0:80ee8f3b695e | 142 | */ |
EricLew | 0:80ee8f3b695e | 143 | |
EricLew | 0:80ee8f3b695e | 144 | /** @defgroup DMA_Exported_Functions_Group1 Initialization and de-initialization functions |
EricLew | 0:80ee8f3b695e | 145 | * @brief Initialization and de-initialization functions |
EricLew | 0:80ee8f3b695e | 146 | * |
EricLew | 0:80ee8f3b695e | 147 | @verbatim |
EricLew | 0:80ee8f3b695e | 148 | =============================================================================== |
EricLew | 0:80ee8f3b695e | 149 | ##### Initialization and de-initialization functions ##### |
EricLew | 0:80ee8f3b695e | 150 | =============================================================================== |
EricLew | 0:80ee8f3b695e | 151 | [..] |
EricLew | 0:80ee8f3b695e | 152 | This section provides functions allowing to initialize the DMA Channel source |
EricLew | 0:80ee8f3b695e | 153 | and destination addresses, incrementation and data sizes, transfer direction, |
EricLew | 0:80ee8f3b695e | 154 | circular/normal mode selection, memory-to-memory mode selection and Channel priority value. |
EricLew | 0:80ee8f3b695e | 155 | [..] |
EricLew | 0:80ee8f3b695e | 156 | The HAL_DMA_Init() function follows the DMA configuration procedures as described in |
EricLew | 0:80ee8f3b695e | 157 | reference manual. |
EricLew | 0:80ee8f3b695e | 158 | |
EricLew | 0:80ee8f3b695e | 159 | @endverbatim |
EricLew | 0:80ee8f3b695e | 160 | * @{ |
EricLew | 0:80ee8f3b695e | 161 | */ |
EricLew | 0:80ee8f3b695e | 162 | |
EricLew | 0:80ee8f3b695e | 163 | /** |
EricLew | 0:80ee8f3b695e | 164 | * @brief Initialize the DMA according to the specified |
EricLew | 0:80ee8f3b695e | 165 | * parameters in the DMA_InitTypeDef and initialize the associated handle. |
EricLew | 0:80ee8f3b695e | 166 | * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 167 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 168 | * @retval HAL status |
EricLew | 0:80ee8f3b695e | 169 | */ |
EricLew | 0:80ee8f3b695e | 170 | HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma) |
EricLew | 0:80ee8f3b695e | 171 | { |
EricLew | 0:80ee8f3b695e | 172 | uint32_t tmp = 0; |
EricLew | 0:80ee8f3b695e | 173 | |
EricLew | 0:80ee8f3b695e | 174 | /* Check the DMA handle allocation */ |
EricLew | 0:80ee8f3b695e | 175 | if(hdma == NULL) |
EricLew | 0:80ee8f3b695e | 176 | { |
EricLew | 0:80ee8f3b695e | 177 | return HAL_ERROR; |
EricLew | 0:80ee8f3b695e | 178 | } |
EricLew | 0:80ee8f3b695e | 179 | |
EricLew | 0:80ee8f3b695e | 180 | /* Check the parameters */ |
EricLew | 0:80ee8f3b695e | 181 | assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance)); |
EricLew | 0:80ee8f3b695e | 182 | assert_param(IS_DMA_DIRECTION(hdma->Init.Direction)); |
EricLew | 0:80ee8f3b695e | 183 | assert_param(IS_DMA_PERIPHERAL_INC_STATE(hdma->Init.PeriphInc)); |
EricLew | 0:80ee8f3b695e | 184 | assert_param(IS_DMA_MEMORY_INC_STATE(hdma->Init.MemInc)); |
EricLew | 0:80ee8f3b695e | 185 | assert_param(IS_DMA_PERIPHERAL_DATA_SIZE(hdma->Init.PeriphDataAlignment)); |
EricLew | 0:80ee8f3b695e | 186 | assert_param(IS_DMA_MEMORY_DATA_SIZE(hdma->Init.MemDataAlignment)); |
EricLew | 0:80ee8f3b695e | 187 | assert_param(IS_DMA_MODE(hdma->Init.Mode)); |
EricLew | 0:80ee8f3b695e | 188 | assert_param(IS_DMA_PRIORITY(hdma->Init.Priority)); |
EricLew | 0:80ee8f3b695e | 189 | if(hdma->Init.Direction != DMA_MEMORY_TO_MEMORY) |
EricLew | 0:80ee8f3b695e | 190 | { |
EricLew | 0:80ee8f3b695e | 191 | assert_param(IS_DMA_ALL_REQUEST(hdma->Init.Request)); |
EricLew | 0:80ee8f3b695e | 192 | } |
EricLew | 0:80ee8f3b695e | 193 | |
EricLew | 0:80ee8f3b695e | 194 | if(hdma->State == HAL_DMA_STATE_RESET) |
EricLew | 0:80ee8f3b695e | 195 | { |
EricLew | 0:80ee8f3b695e | 196 | /* Allocate lock resource and initialize it */ |
EricLew | 0:80ee8f3b695e | 197 | hdma->Lock = HAL_UNLOCKED; |
EricLew | 0:80ee8f3b695e | 198 | } |
EricLew | 0:80ee8f3b695e | 199 | |
EricLew | 0:80ee8f3b695e | 200 | /* Change DMA peripheral state */ |
EricLew | 0:80ee8f3b695e | 201 | hdma->State = HAL_DMA_STATE_BUSY; |
EricLew | 0:80ee8f3b695e | 202 | |
EricLew | 0:80ee8f3b695e | 203 | /* Get the CR register value */ |
EricLew | 0:80ee8f3b695e | 204 | tmp = hdma->Instance->CCR; |
EricLew | 0:80ee8f3b695e | 205 | |
EricLew | 0:80ee8f3b695e | 206 | /* Clear PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR bits */ |
EricLew | 0:80ee8f3b695e | 207 | tmp &= ((uint32_t)~(DMA_CCR_PL | DMA_CCR_MSIZE | DMA_CCR_PSIZE | \ |
EricLew | 0:80ee8f3b695e | 208 | DMA_CCR_MINC | DMA_CCR_PINC | DMA_CCR_CIRC | \ |
EricLew | 0:80ee8f3b695e | 209 | DMA_CCR_DIR)); |
EricLew | 0:80ee8f3b695e | 210 | |
EricLew | 0:80ee8f3b695e | 211 | /* Prepare the DMA Channel configuration */ |
EricLew | 0:80ee8f3b695e | 212 | tmp |= hdma->Init.Direction | |
EricLew | 0:80ee8f3b695e | 213 | hdma->Init.PeriphInc | hdma->Init.MemInc | |
EricLew | 0:80ee8f3b695e | 214 | hdma->Init.PeriphDataAlignment | hdma->Init.MemDataAlignment | |
EricLew | 0:80ee8f3b695e | 215 | hdma->Init.Mode | hdma->Init.Priority; |
EricLew | 0:80ee8f3b695e | 216 | |
EricLew | 0:80ee8f3b695e | 217 | /* Write to DMA Channel CR register */ |
EricLew | 0:80ee8f3b695e | 218 | hdma->Instance->CCR = tmp; |
EricLew | 0:80ee8f3b695e | 219 | |
EricLew | 0:80ee8f3b695e | 220 | /* Set request selection */ |
EricLew | 0:80ee8f3b695e | 221 | if(hdma->Init.Direction != DMA_MEMORY_TO_MEMORY) |
EricLew | 0:80ee8f3b695e | 222 | { |
EricLew | 0:80ee8f3b695e | 223 | /* Write to DMA channel selection register */ |
EricLew | 0:80ee8f3b695e | 224 | if (hdma->Instance == DMA1_Channel1) |
EricLew | 0:80ee8f3b695e | 225 | { |
EricLew | 0:80ee8f3b695e | 226 | /*Reset request selection for DMA1 Channel1*/ |
EricLew | 0:80ee8f3b695e | 227 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C1S; |
EricLew | 0:80ee8f3b695e | 228 | |
EricLew | 0:80ee8f3b695e | 229 | /* Configure request selection for DMA1 Channel1 */ |
EricLew | 0:80ee8f3b695e | 230 | DMA1_CSELR->CSELR |= hdma->Init.Request; |
EricLew | 0:80ee8f3b695e | 231 | } |
EricLew | 0:80ee8f3b695e | 232 | else if (hdma->Instance == DMA1_Channel2) |
EricLew | 0:80ee8f3b695e | 233 | { |
EricLew | 0:80ee8f3b695e | 234 | /*Reset request selection for DMA1 Channel2*/ |
EricLew | 0:80ee8f3b695e | 235 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C2S; |
EricLew | 0:80ee8f3b695e | 236 | |
EricLew | 0:80ee8f3b695e | 237 | /* Configure request selection for DMA1 Channel2 */ |
EricLew | 0:80ee8f3b695e | 238 | DMA1_CSELR->CSELR |= (uint32_t)(hdma->Init.Request << 4); |
EricLew | 0:80ee8f3b695e | 239 | } |
EricLew | 0:80ee8f3b695e | 240 | else if (hdma->Instance == DMA1_Channel3) |
EricLew | 0:80ee8f3b695e | 241 | { |
EricLew | 0:80ee8f3b695e | 242 | /*Reset request selection for DMA1 Channel3*/ |
EricLew | 0:80ee8f3b695e | 243 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C3S; |
EricLew | 0:80ee8f3b695e | 244 | |
EricLew | 0:80ee8f3b695e | 245 | /* Configure request selection for DMA1 Channel3 */ |
EricLew | 0:80ee8f3b695e | 246 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 8); |
EricLew | 0:80ee8f3b695e | 247 | } |
EricLew | 0:80ee8f3b695e | 248 | else if (hdma->Instance == DMA1_Channel4) |
EricLew | 0:80ee8f3b695e | 249 | { |
EricLew | 0:80ee8f3b695e | 250 | /*Reset request selection for DMA1 Channel4*/ |
EricLew | 0:80ee8f3b695e | 251 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C4S; |
EricLew | 0:80ee8f3b695e | 252 | |
EricLew | 0:80ee8f3b695e | 253 | /* Configure request selection for DMA1 Channel4 */ |
EricLew | 0:80ee8f3b695e | 254 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 12); |
EricLew | 0:80ee8f3b695e | 255 | } |
EricLew | 0:80ee8f3b695e | 256 | else if (hdma->Instance == DMA1_Channel5) |
EricLew | 0:80ee8f3b695e | 257 | { |
EricLew | 0:80ee8f3b695e | 258 | /*Reset request selection for DMA1 Channel5*/ |
EricLew | 0:80ee8f3b695e | 259 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C5S; |
EricLew | 0:80ee8f3b695e | 260 | |
EricLew | 0:80ee8f3b695e | 261 | /* Configure request selection for DMA1 Channel5 */ |
EricLew | 0:80ee8f3b695e | 262 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 16); |
EricLew | 0:80ee8f3b695e | 263 | } |
EricLew | 0:80ee8f3b695e | 264 | else if (hdma->Instance == DMA1_Channel6) |
EricLew | 0:80ee8f3b695e | 265 | { |
EricLew | 0:80ee8f3b695e | 266 | /*Reset request selection for DMA1 Channel6*/ |
EricLew | 0:80ee8f3b695e | 267 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C6S; |
EricLew | 0:80ee8f3b695e | 268 | |
EricLew | 0:80ee8f3b695e | 269 | /* Configure request selection for DMA1 Channel6 */ |
EricLew | 0:80ee8f3b695e | 270 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 20); |
EricLew | 0:80ee8f3b695e | 271 | } |
EricLew | 0:80ee8f3b695e | 272 | else if (hdma->Instance == DMA1_Channel7) |
EricLew | 0:80ee8f3b695e | 273 | { |
EricLew | 0:80ee8f3b695e | 274 | /*Reset request selection for DMA1 Channel7*/ |
EricLew | 0:80ee8f3b695e | 275 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C7S; |
EricLew | 0:80ee8f3b695e | 276 | |
EricLew | 0:80ee8f3b695e | 277 | /* Configure request selection for DMA1 Channel7 */ |
EricLew | 0:80ee8f3b695e | 278 | DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 24); |
EricLew | 0:80ee8f3b695e | 279 | } |
EricLew | 0:80ee8f3b695e | 280 | else if (hdma->Instance == DMA2_Channel1) |
EricLew | 0:80ee8f3b695e | 281 | { |
EricLew | 0:80ee8f3b695e | 282 | /*Reset request selection for DMA2 Channel1*/ |
EricLew | 0:80ee8f3b695e | 283 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C1S; |
EricLew | 0:80ee8f3b695e | 284 | |
EricLew | 0:80ee8f3b695e | 285 | /* Configure request selection for DMA2 Channel1 */ |
EricLew | 0:80ee8f3b695e | 286 | DMA2_CSELR->CSELR |= hdma->Init.Request; |
EricLew | 0:80ee8f3b695e | 287 | } |
EricLew | 0:80ee8f3b695e | 288 | else if (hdma->Instance == DMA2_Channel2) |
EricLew | 0:80ee8f3b695e | 289 | { |
EricLew | 0:80ee8f3b695e | 290 | /*Reset request selection for DMA2 Channel2*/ |
EricLew | 0:80ee8f3b695e | 291 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C2S; |
EricLew | 0:80ee8f3b695e | 292 | |
EricLew | 0:80ee8f3b695e | 293 | /* Configure request selection for DMA2 Channel2 */ |
EricLew | 0:80ee8f3b695e | 294 | DMA2_CSELR->CSELR |= (uint32_t)(hdma->Init.Request << 4); |
EricLew | 0:80ee8f3b695e | 295 | } |
EricLew | 0:80ee8f3b695e | 296 | else if (hdma->Instance == DMA2_Channel3) |
EricLew | 0:80ee8f3b695e | 297 | { |
EricLew | 0:80ee8f3b695e | 298 | /*Reset request selection for DMA2 Channel3*/ |
EricLew | 0:80ee8f3b695e | 299 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C3S; |
EricLew | 0:80ee8f3b695e | 300 | |
EricLew | 0:80ee8f3b695e | 301 | /* Configure request selection for DMA2 Channel3 */ |
EricLew | 0:80ee8f3b695e | 302 | DMA2_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 8); |
EricLew | 0:80ee8f3b695e | 303 | } |
EricLew | 0:80ee8f3b695e | 304 | else if (hdma->Instance == DMA2_Channel4) |
EricLew | 0:80ee8f3b695e | 305 | { |
EricLew | 0:80ee8f3b695e | 306 | /*Reset request selection for DMA2 Channel4*/ |
EricLew | 0:80ee8f3b695e | 307 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C4S; |
EricLew | 0:80ee8f3b695e | 308 | |
EricLew | 0:80ee8f3b695e | 309 | /* Configure request selection for DMA2 Channel4 */ |
EricLew | 0:80ee8f3b695e | 310 | DMA2_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 12); |
EricLew | 0:80ee8f3b695e | 311 | } |
EricLew | 0:80ee8f3b695e | 312 | else if (hdma->Instance == DMA2_Channel5) |
EricLew | 0:80ee8f3b695e | 313 | { |
EricLew | 0:80ee8f3b695e | 314 | /*Reset request selection for DMA2 Channel5*/ |
EricLew | 0:80ee8f3b695e | 315 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C5S; |
EricLew | 0:80ee8f3b695e | 316 | |
EricLew | 0:80ee8f3b695e | 317 | /* Configure request selection for DMA2 Channel5 */ |
EricLew | 0:80ee8f3b695e | 318 | DMA2_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 16); |
EricLew | 0:80ee8f3b695e | 319 | } |
EricLew | 0:80ee8f3b695e | 320 | else if (hdma->Instance == DMA2_Channel6) |
EricLew | 0:80ee8f3b695e | 321 | { |
EricLew | 0:80ee8f3b695e | 322 | /*Reset request selection for DMA2 Channel6*/ |
EricLew | 0:80ee8f3b695e | 323 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C6S; |
EricLew | 0:80ee8f3b695e | 324 | |
EricLew | 0:80ee8f3b695e | 325 | /* Configure request selection for DMA2 Channel6 */ |
EricLew | 0:80ee8f3b695e | 326 | DMA2_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 20); |
EricLew | 0:80ee8f3b695e | 327 | } |
EricLew | 0:80ee8f3b695e | 328 | else if (hdma->Instance == DMA2_Channel7) |
EricLew | 0:80ee8f3b695e | 329 | { |
EricLew | 0:80ee8f3b695e | 330 | /*Reset request selection for DMA2 Channel7*/ |
EricLew | 0:80ee8f3b695e | 331 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C7S; |
EricLew | 0:80ee8f3b695e | 332 | |
EricLew | 0:80ee8f3b695e | 333 | /* Configure request selection for DMA2 Channel7 */ |
EricLew | 0:80ee8f3b695e | 334 | DMA2_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << 24); |
EricLew | 0:80ee8f3b695e | 335 | } |
EricLew | 0:80ee8f3b695e | 336 | } |
EricLew | 0:80ee8f3b695e | 337 | |
EricLew | 0:80ee8f3b695e | 338 | /* Initialize the error code */ |
EricLew | 0:80ee8f3b695e | 339 | hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
EricLew | 0:80ee8f3b695e | 340 | |
EricLew | 0:80ee8f3b695e | 341 | /* Initialize the DMA state*/ |
EricLew | 0:80ee8f3b695e | 342 | hdma->State = HAL_DMA_STATE_READY; |
EricLew | 0:80ee8f3b695e | 343 | |
EricLew | 0:80ee8f3b695e | 344 | return HAL_OK; |
EricLew | 0:80ee8f3b695e | 345 | } |
EricLew | 0:80ee8f3b695e | 346 | |
EricLew | 0:80ee8f3b695e | 347 | /** |
EricLew | 0:80ee8f3b695e | 348 | * @brief DeInitialize the DMA peripheral. |
EricLew | 0:80ee8f3b695e | 349 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 350 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 351 | * @retval HAL status |
EricLew | 0:80ee8f3b695e | 352 | */ |
EricLew | 0:80ee8f3b695e | 353 | HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma) |
EricLew | 0:80ee8f3b695e | 354 | { |
EricLew | 0:80ee8f3b695e | 355 | /* Check the DMA handle allocation */ |
EricLew | 0:80ee8f3b695e | 356 | if(hdma == NULL) |
EricLew | 0:80ee8f3b695e | 357 | { |
EricLew | 0:80ee8f3b695e | 358 | return HAL_ERROR; |
EricLew | 0:80ee8f3b695e | 359 | } |
EricLew | 0:80ee8f3b695e | 360 | |
EricLew | 0:80ee8f3b695e | 361 | /* Check the parameters */ |
EricLew | 0:80ee8f3b695e | 362 | assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance)); |
EricLew | 0:80ee8f3b695e | 363 | |
EricLew | 0:80ee8f3b695e | 364 | /* Check the DMA peripheral state */ |
EricLew | 0:80ee8f3b695e | 365 | if(hdma->State == HAL_DMA_STATE_BUSY) |
EricLew | 0:80ee8f3b695e | 366 | { |
EricLew | 0:80ee8f3b695e | 367 | return HAL_ERROR; |
EricLew | 0:80ee8f3b695e | 368 | } |
EricLew | 0:80ee8f3b695e | 369 | |
EricLew | 0:80ee8f3b695e | 370 | /* Disable the selected DMA Channelx */ |
EricLew | 0:80ee8f3b695e | 371 | __HAL_DMA_DISABLE(hdma); |
EricLew | 0:80ee8f3b695e | 372 | |
EricLew | 0:80ee8f3b695e | 373 | /* Reset DMA Channel control register */ |
EricLew | 0:80ee8f3b695e | 374 | hdma->Instance->CCR = 0; |
EricLew | 0:80ee8f3b695e | 375 | |
EricLew | 0:80ee8f3b695e | 376 | /* Reset DMA Channel Number of Data to Transfer register */ |
EricLew | 0:80ee8f3b695e | 377 | hdma->Instance->CNDTR = 0; |
EricLew | 0:80ee8f3b695e | 378 | |
EricLew | 0:80ee8f3b695e | 379 | /* Reset DMA Channel peripheral address register */ |
EricLew | 0:80ee8f3b695e | 380 | hdma->Instance->CPAR = 0; |
EricLew | 0:80ee8f3b695e | 381 | |
EricLew | 0:80ee8f3b695e | 382 | /* Reset DMA Channel memory address register */ |
EricLew | 0:80ee8f3b695e | 383 | hdma->Instance->CMAR = 0; |
EricLew | 0:80ee8f3b695e | 384 | |
EricLew | 0:80ee8f3b695e | 385 | /* Clear all flags */ |
EricLew | 0:80ee8f3b695e | 386 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_GI_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 387 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 388 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 389 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 390 | |
EricLew | 0:80ee8f3b695e | 391 | /* Reset DMA channel selection register */ |
EricLew | 0:80ee8f3b695e | 392 | if (hdma->Instance == DMA1_Channel1) |
EricLew | 0:80ee8f3b695e | 393 | { |
EricLew | 0:80ee8f3b695e | 394 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 395 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C1S; |
EricLew | 0:80ee8f3b695e | 396 | } |
EricLew | 0:80ee8f3b695e | 397 | else if (hdma->Instance == DMA1_Channel2) |
EricLew | 0:80ee8f3b695e | 398 | { |
EricLew | 0:80ee8f3b695e | 399 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 400 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C2S; |
EricLew | 0:80ee8f3b695e | 401 | } |
EricLew | 0:80ee8f3b695e | 402 | else if (hdma->Instance == DMA1_Channel3) |
EricLew | 0:80ee8f3b695e | 403 | { |
EricLew | 0:80ee8f3b695e | 404 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 405 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C3S; |
EricLew | 0:80ee8f3b695e | 406 | } |
EricLew | 0:80ee8f3b695e | 407 | else if (hdma->Instance == DMA1_Channel4) |
EricLew | 0:80ee8f3b695e | 408 | { |
EricLew | 0:80ee8f3b695e | 409 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 410 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C4S; |
EricLew | 0:80ee8f3b695e | 411 | } |
EricLew | 0:80ee8f3b695e | 412 | else if (hdma->Instance == DMA1_Channel5) |
EricLew | 0:80ee8f3b695e | 413 | { |
EricLew | 0:80ee8f3b695e | 414 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 415 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C5S; |
EricLew | 0:80ee8f3b695e | 416 | } |
EricLew | 0:80ee8f3b695e | 417 | else if (hdma->Instance == DMA1_Channel6) |
EricLew | 0:80ee8f3b695e | 418 | { |
EricLew | 0:80ee8f3b695e | 419 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 420 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C6S; |
EricLew | 0:80ee8f3b695e | 421 | } |
EricLew | 0:80ee8f3b695e | 422 | else if (hdma->Instance == DMA1_Channel7) |
EricLew | 0:80ee8f3b695e | 423 | { |
EricLew | 0:80ee8f3b695e | 424 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 425 | DMA1_CSELR->CSELR &= ~DMA_CSELR_C7S; |
EricLew | 0:80ee8f3b695e | 426 | } |
EricLew | 0:80ee8f3b695e | 427 | else if (hdma->Instance == DMA2_Channel1) |
EricLew | 0:80ee8f3b695e | 428 | { |
EricLew | 0:80ee8f3b695e | 429 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 430 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C1S; |
EricLew | 0:80ee8f3b695e | 431 | } |
EricLew | 0:80ee8f3b695e | 432 | else if (hdma->Instance == DMA2_Channel2) |
EricLew | 0:80ee8f3b695e | 433 | { |
EricLew | 0:80ee8f3b695e | 434 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 435 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C2S; |
EricLew | 0:80ee8f3b695e | 436 | } |
EricLew | 0:80ee8f3b695e | 437 | else if (hdma->Instance == DMA2_Channel3) |
EricLew | 0:80ee8f3b695e | 438 | { |
EricLew | 0:80ee8f3b695e | 439 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 440 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C3S; |
EricLew | 0:80ee8f3b695e | 441 | } |
EricLew | 0:80ee8f3b695e | 442 | else if (hdma->Instance == DMA2_Channel4) |
EricLew | 0:80ee8f3b695e | 443 | { |
EricLew | 0:80ee8f3b695e | 444 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 445 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C4S; |
EricLew | 0:80ee8f3b695e | 446 | } |
EricLew | 0:80ee8f3b695e | 447 | else if (hdma->Instance == DMA2_Channel5) |
EricLew | 0:80ee8f3b695e | 448 | { |
EricLew | 0:80ee8f3b695e | 449 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 450 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C5S; |
EricLew | 0:80ee8f3b695e | 451 | } |
EricLew | 0:80ee8f3b695e | 452 | else if (hdma->Instance == DMA2_Channel6) |
EricLew | 0:80ee8f3b695e | 453 | { |
EricLew | 0:80ee8f3b695e | 454 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 455 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C6S; |
EricLew | 0:80ee8f3b695e | 456 | } |
EricLew | 0:80ee8f3b695e | 457 | else if (hdma->Instance == DMA2_Channel7) |
EricLew | 0:80ee8f3b695e | 458 | { |
EricLew | 0:80ee8f3b695e | 459 | /*Reset DMA request*/ |
EricLew | 0:80ee8f3b695e | 460 | DMA2_CSELR->CSELR &= ~DMA_CSELR_C7S; |
EricLew | 0:80ee8f3b695e | 461 | } |
EricLew | 0:80ee8f3b695e | 462 | |
EricLew | 0:80ee8f3b695e | 463 | /* Initialize the error code */ |
EricLew | 0:80ee8f3b695e | 464 | hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
EricLew | 0:80ee8f3b695e | 465 | |
EricLew | 0:80ee8f3b695e | 466 | /* Initialize the DMA state */ |
EricLew | 0:80ee8f3b695e | 467 | hdma->State = HAL_DMA_STATE_RESET; |
EricLew | 0:80ee8f3b695e | 468 | |
EricLew | 0:80ee8f3b695e | 469 | /* Release Lock */ |
EricLew | 0:80ee8f3b695e | 470 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 471 | |
EricLew | 0:80ee8f3b695e | 472 | return HAL_OK; |
EricLew | 0:80ee8f3b695e | 473 | } |
EricLew | 0:80ee8f3b695e | 474 | |
EricLew | 0:80ee8f3b695e | 475 | /** |
EricLew | 0:80ee8f3b695e | 476 | * @} |
EricLew | 0:80ee8f3b695e | 477 | */ |
EricLew | 0:80ee8f3b695e | 478 | |
EricLew | 0:80ee8f3b695e | 479 | /** @defgroup DMA_Exported_Functions_Group2 Input and Output operation functions |
EricLew | 0:80ee8f3b695e | 480 | * @brief Input and Output operation functions |
EricLew | 0:80ee8f3b695e | 481 | * |
EricLew | 0:80ee8f3b695e | 482 | @verbatim |
EricLew | 0:80ee8f3b695e | 483 | =============================================================================== |
EricLew | 0:80ee8f3b695e | 484 | ##### IO operation functions ##### |
EricLew | 0:80ee8f3b695e | 485 | =============================================================================== |
EricLew | 0:80ee8f3b695e | 486 | [..] This section provides functions allowing to: |
EricLew | 0:80ee8f3b695e | 487 | (+) Configure the source, destination address and data length and Start DMA transfer |
EricLew | 0:80ee8f3b695e | 488 | (+) Configure the source, destination address and data length and |
EricLew | 0:80ee8f3b695e | 489 | Start DMA transfer with interrupt |
EricLew | 0:80ee8f3b695e | 490 | (+) Abort DMA transfer |
EricLew | 0:80ee8f3b695e | 491 | (+) Poll for transfer complete |
EricLew | 0:80ee8f3b695e | 492 | (+) Handle DMA interrupt request |
EricLew | 0:80ee8f3b695e | 493 | |
EricLew | 0:80ee8f3b695e | 494 | @endverbatim |
EricLew | 0:80ee8f3b695e | 495 | * @{ |
EricLew | 0:80ee8f3b695e | 496 | */ |
EricLew | 0:80ee8f3b695e | 497 | |
EricLew | 0:80ee8f3b695e | 498 | /** |
EricLew | 0:80ee8f3b695e | 499 | * @brief Start the DMA Transfer. |
EricLew | 0:80ee8f3b695e | 500 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 501 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 502 | * @param SrcAddress: The source memory Buffer address |
EricLew | 0:80ee8f3b695e | 503 | * @param DstAddress: The destination memory Buffer address |
EricLew | 0:80ee8f3b695e | 504 | * @param DataLength: The length of data to be transferred from source to destination |
EricLew | 0:80ee8f3b695e | 505 | * @retval HAL status |
EricLew | 0:80ee8f3b695e | 506 | */ |
EricLew | 0:80ee8f3b695e | 507 | HAL_StatusTypeDef HAL_DMA_Start(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
EricLew | 0:80ee8f3b695e | 508 | { |
EricLew | 0:80ee8f3b695e | 509 | /* Process locked */ |
EricLew | 0:80ee8f3b695e | 510 | __HAL_LOCK(hdma); |
EricLew | 0:80ee8f3b695e | 511 | |
EricLew | 0:80ee8f3b695e | 512 | /* Change DMA peripheral state */ |
EricLew | 0:80ee8f3b695e | 513 | hdma->State = HAL_DMA_STATE_BUSY; |
EricLew | 0:80ee8f3b695e | 514 | |
EricLew | 0:80ee8f3b695e | 515 | /* Check the parameters */ |
EricLew | 0:80ee8f3b695e | 516 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
EricLew | 0:80ee8f3b695e | 517 | |
EricLew | 0:80ee8f3b695e | 518 | /* Disable the peripheral */ |
EricLew | 0:80ee8f3b695e | 519 | __HAL_DMA_DISABLE(hdma); |
EricLew | 0:80ee8f3b695e | 520 | |
EricLew | 0:80ee8f3b695e | 521 | /* Configure the source, destination address and the data length */ |
EricLew | 0:80ee8f3b695e | 522 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
EricLew | 0:80ee8f3b695e | 523 | |
EricLew | 0:80ee8f3b695e | 524 | /* Enable the Peripheral */ |
EricLew | 0:80ee8f3b695e | 525 | __HAL_DMA_ENABLE(hdma); |
EricLew | 0:80ee8f3b695e | 526 | |
EricLew | 0:80ee8f3b695e | 527 | return HAL_OK; |
EricLew | 0:80ee8f3b695e | 528 | } |
EricLew | 0:80ee8f3b695e | 529 | |
EricLew | 0:80ee8f3b695e | 530 | /** |
EricLew | 0:80ee8f3b695e | 531 | * @brief Start the DMA Transfer with interrupt enabled. |
EricLew | 0:80ee8f3b695e | 532 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 533 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 534 | * @param SrcAddress: The source memory Buffer address |
EricLew | 0:80ee8f3b695e | 535 | * @param DstAddress: The destination memory Buffer address |
EricLew | 0:80ee8f3b695e | 536 | * @param DataLength: The length of data to be transferred from source to destination |
EricLew | 0:80ee8f3b695e | 537 | * @retval HAL status |
EricLew | 0:80ee8f3b695e | 538 | */ |
EricLew | 0:80ee8f3b695e | 539 | HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
EricLew | 0:80ee8f3b695e | 540 | { |
EricLew | 0:80ee8f3b695e | 541 | /* Process locked */ |
EricLew | 0:80ee8f3b695e | 542 | __HAL_LOCK(hdma); |
EricLew | 0:80ee8f3b695e | 543 | |
EricLew | 0:80ee8f3b695e | 544 | /* Change DMA peripheral state */ |
EricLew | 0:80ee8f3b695e | 545 | hdma->State = HAL_DMA_STATE_BUSY; |
EricLew | 0:80ee8f3b695e | 546 | |
EricLew | 0:80ee8f3b695e | 547 | /* Check the parameters */ |
EricLew | 0:80ee8f3b695e | 548 | assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
EricLew | 0:80ee8f3b695e | 549 | |
EricLew | 0:80ee8f3b695e | 550 | /* Disable the peripheral */ |
EricLew | 0:80ee8f3b695e | 551 | __HAL_DMA_DISABLE(hdma); |
EricLew | 0:80ee8f3b695e | 552 | |
EricLew | 0:80ee8f3b695e | 553 | /* Configure the source, destination address and the data length */ |
EricLew | 0:80ee8f3b695e | 554 | DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength); |
EricLew | 0:80ee8f3b695e | 555 | |
EricLew | 0:80ee8f3b695e | 556 | /* Enable the transfer complete interrupt */ |
EricLew | 0:80ee8f3b695e | 557 | /* Enable the Half transfer complete interrupt */ |
EricLew | 0:80ee8f3b695e | 558 | /* Enable the transfer Error interrupt */ |
EricLew | 0:80ee8f3b695e | 559 | __HAL_DMA_ENABLE_IT(hdma, (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE)); |
EricLew | 0:80ee8f3b695e | 560 | |
EricLew | 0:80ee8f3b695e | 561 | /* Enable the Peripheral */ |
EricLew | 0:80ee8f3b695e | 562 | __HAL_DMA_ENABLE(hdma); |
EricLew | 0:80ee8f3b695e | 563 | |
EricLew | 0:80ee8f3b695e | 564 | return HAL_OK; |
EricLew | 0:80ee8f3b695e | 565 | } |
EricLew | 0:80ee8f3b695e | 566 | |
EricLew | 0:80ee8f3b695e | 567 | /** |
EricLew | 0:80ee8f3b695e | 568 | * @brief Abort the DMA Transfer. |
EricLew | 0:80ee8f3b695e | 569 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 570 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 571 | * |
EricLew | 0:80ee8f3b695e | 572 | * @note After disabling a DMA Channel, a check for wait until the DMA Channel is |
EricLew | 0:80ee8f3b695e | 573 | * effectively disabled is added. If a Channel is disabled |
EricLew | 0:80ee8f3b695e | 574 | * while a data transfer is ongoing, the current data will be transferred |
EricLew | 0:80ee8f3b695e | 575 | * and the Channel will be effectively disabled only after the transfer of |
EricLew | 0:80ee8f3b695e | 576 | * this single data is finished. |
EricLew | 0:80ee8f3b695e | 577 | * @retval HAL status |
EricLew | 0:80ee8f3b695e | 578 | */ |
EricLew | 0:80ee8f3b695e | 579 | HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma) |
EricLew | 0:80ee8f3b695e | 580 | { |
EricLew | 0:80ee8f3b695e | 581 | uint32_t tickstart = 0; |
EricLew | 0:80ee8f3b695e | 582 | |
EricLew | 0:80ee8f3b695e | 583 | /* Disable the channel */ |
EricLew | 0:80ee8f3b695e | 584 | __HAL_DMA_DISABLE(hdma); |
EricLew | 0:80ee8f3b695e | 585 | |
EricLew | 0:80ee8f3b695e | 586 | /* Get tick */ |
EricLew | 0:80ee8f3b695e | 587 | tickstart = HAL_GetTick(); |
EricLew | 0:80ee8f3b695e | 588 | |
EricLew | 0:80ee8f3b695e | 589 | /* Check if the DMA Channel is effectively disabled */ |
EricLew | 0:80ee8f3b695e | 590 | while((hdma->Instance->CCR & DMA_CCR_EN) != 0) |
EricLew | 0:80ee8f3b695e | 591 | { |
EricLew | 0:80ee8f3b695e | 592 | /* Check for the Timeout */ |
EricLew | 0:80ee8f3b695e | 593 | if((HAL_GetTick() - tickstart) > HAL_TIMEOUT_DMA_ABORT) |
EricLew | 0:80ee8f3b695e | 594 | { |
EricLew | 0:80ee8f3b695e | 595 | /* Update error code */ |
EricLew | 0:80ee8f3b695e | 596 | hdma->ErrorCode |= HAL_DMA_ERROR_TIMEOUT; |
EricLew | 0:80ee8f3b695e | 597 | |
EricLew | 0:80ee8f3b695e | 598 | /* Change the DMA state */ |
EricLew | 0:80ee8f3b695e | 599 | hdma->State = HAL_DMA_STATE_TIMEOUT; |
EricLew | 0:80ee8f3b695e | 600 | |
EricLew | 0:80ee8f3b695e | 601 | /* Process Unlocked */ |
EricLew | 0:80ee8f3b695e | 602 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 603 | |
EricLew | 0:80ee8f3b695e | 604 | return HAL_TIMEOUT; |
EricLew | 0:80ee8f3b695e | 605 | } |
EricLew | 0:80ee8f3b695e | 606 | } |
EricLew | 0:80ee8f3b695e | 607 | /* Change the DMA state */ |
EricLew | 0:80ee8f3b695e | 608 | hdma->State = HAL_DMA_STATE_READY; |
EricLew | 0:80ee8f3b695e | 609 | |
EricLew | 0:80ee8f3b695e | 610 | /* Process Unlocked */ |
EricLew | 0:80ee8f3b695e | 611 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 612 | |
EricLew | 0:80ee8f3b695e | 613 | return HAL_OK; |
EricLew | 0:80ee8f3b695e | 614 | } |
EricLew | 0:80ee8f3b695e | 615 | |
EricLew | 0:80ee8f3b695e | 616 | /** |
EricLew | 0:80ee8f3b695e | 617 | * @brief Polling for transfer complete. |
EricLew | 0:80ee8f3b695e | 618 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 619 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 620 | * @param CompleteLevel: Specifies the DMA level complete. |
EricLew | 0:80ee8f3b695e | 621 | * @param Timeout: Timeout duration. |
EricLew | 0:80ee8f3b695e | 622 | * @retval HAL status |
EricLew | 0:80ee8f3b695e | 623 | */ |
EricLew | 0:80ee8f3b695e | 624 | HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t CompleteLevel, uint32_t Timeout) |
EricLew | 0:80ee8f3b695e | 625 | { |
EricLew | 0:80ee8f3b695e | 626 | uint32_t temp; |
EricLew | 0:80ee8f3b695e | 627 | uint32_t tickstart = 0; |
EricLew | 0:80ee8f3b695e | 628 | |
EricLew | 0:80ee8f3b695e | 629 | /* Get the level transfer complete flag */ |
EricLew | 0:80ee8f3b695e | 630 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
EricLew | 0:80ee8f3b695e | 631 | { |
EricLew | 0:80ee8f3b695e | 632 | /* Transfer Complete flag */ |
EricLew | 0:80ee8f3b695e | 633 | temp = __HAL_DMA_GET_TC_FLAG_INDEX(hdma); |
EricLew | 0:80ee8f3b695e | 634 | } |
EricLew | 0:80ee8f3b695e | 635 | else |
EricLew | 0:80ee8f3b695e | 636 | { |
EricLew | 0:80ee8f3b695e | 637 | /* Half Transfer Complete flag */ |
EricLew | 0:80ee8f3b695e | 638 | temp = __HAL_DMA_GET_HT_FLAG_INDEX(hdma); |
EricLew | 0:80ee8f3b695e | 639 | } |
EricLew | 0:80ee8f3b695e | 640 | |
EricLew | 0:80ee8f3b695e | 641 | /* Get tick */ |
EricLew | 0:80ee8f3b695e | 642 | tickstart = HAL_GetTick(); |
EricLew | 0:80ee8f3b695e | 643 | |
EricLew | 0:80ee8f3b695e | 644 | while(__HAL_DMA_GET_FLAG(hdma, temp) == RESET) |
EricLew | 0:80ee8f3b695e | 645 | { |
EricLew | 0:80ee8f3b695e | 646 | if((__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET)) |
EricLew | 0:80ee8f3b695e | 647 | { |
EricLew | 0:80ee8f3b695e | 648 | /* Clear the transfer error flags */ |
EricLew | 0:80ee8f3b695e | 649 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 650 | |
EricLew | 0:80ee8f3b695e | 651 | /* Update error code */ |
EricLew | 0:80ee8f3b695e | 652 | SET_BIT(hdma->ErrorCode, HAL_DMA_ERROR_TE); |
EricLew | 0:80ee8f3b695e | 653 | |
EricLew | 0:80ee8f3b695e | 654 | /* Change the DMA state */ |
EricLew | 0:80ee8f3b695e | 655 | hdma->State= HAL_DMA_STATE_ERROR; |
EricLew | 0:80ee8f3b695e | 656 | |
EricLew | 0:80ee8f3b695e | 657 | /* Process Unlocked */ |
EricLew | 0:80ee8f3b695e | 658 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 659 | |
EricLew | 0:80ee8f3b695e | 660 | return HAL_ERROR; |
EricLew | 0:80ee8f3b695e | 661 | } |
EricLew | 0:80ee8f3b695e | 662 | /* Check for the Timeout */ |
EricLew | 0:80ee8f3b695e | 663 | if(Timeout != HAL_MAX_DELAY) |
EricLew | 0:80ee8f3b695e | 664 | { |
EricLew | 0:80ee8f3b695e | 665 | if((Timeout == 0) || ((HAL_GetTick() - tickstart) > Timeout)) |
EricLew | 0:80ee8f3b695e | 666 | { |
EricLew | 0:80ee8f3b695e | 667 | /* Update error code */ |
EricLew | 0:80ee8f3b695e | 668 | hdma->ErrorCode |= HAL_DMA_ERROR_TIMEOUT; |
EricLew | 0:80ee8f3b695e | 669 | |
EricLew | 0:80ee8f3b695e | 670 | /* Change the DMA state */ |
EricLew | 0:80ee8f3b695e | 671 | hdma->State = HAL_DMA_STATE_TIMEOUT; |
EricLew | 0:80ee8f3b695e | 672 | |
EricLew | 0:80ee8f3b695e | 673 | /* Process Unlocked */ |
EricLew | 0:80ee8f3b695e | 674 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 675 | |
EricLew | 0:80ee8f3b695e | 676 | return HAL_TIMEOUT; |
EricLew | 0:80ee8f3b695e | 677 | } |
EricLew | 0:80ee8f3b695e | 678 | } |
EricLew | 0:80ee8f3b695e | 679 | } |
EricLew | 0:80ee8f3b695e | 680 | |
EricLew | 0:80ee8f3b695e | 681 | if(CompleteLevel == HAL_DMA_FULL_TRANSFER) |
EricLew | 0:80ee8f3b695e | 682 | { |
EricLew | 0:80ee8f3b695e | 683 | /* Clear the transfer complete flag */ |
EricLew | 0:80ee8f3b695e | 684 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 685 | |
EricLew | 0:80ee8f3b695e | 686 | /* The selected Channelx EN bit is cleared (DMA is disabled and |
EricLew | 0:80ee8f3b695e | 687 | all transfers are complete) */ |
EricLew | 0:80ee8f3b695e | 688 | hdma->State = HAL_DMA_STATE_READY; |
EricLew | 0:80ee8f3b695e | 689 | |
EricLew | 0:80ee8f3b695e | 690 | } |
EricLew | 0:80ee8f3b695e | 691 | else |
EricLew | 0:80ee8f3b695e | 692 | { |
EricLew | 0:80ee8f3b695e | 693 | /* Clear the half transfer complete flag */ |
EricLew | 0:80ee8f3b695e | 694 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 695 | |
EricLew | 0:80ee8f3b695e | 696 | hdma->State = HAL_DMA_STATE_READY_HALF; |
EricLew | 0:80ee8f3b695e | 697 | } |
EricLew | 0:80ee8f3b695e | 698 | |
EricLew | 0:80ee8f3b695e | 699 | /* Process unlocked */ |
EricLew | 0:80ee8f3b695e | 700 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 701 | |
EricLew | 0:80ee8f3b695e | 702 | return HAL_OK; |
EricLew | 0:80ee8f3b695e | 703 | } |
EricLew | 0:80ee8f3b695e | 704 | |
EricLew | 0:80ee8f3b695e | 705 | /** |
EricLew | 0:80ee8f3b695e | 706 | * @brief Handle DMA interrupt request. |
EricLew | 0:80ee8f3b695e | 707 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 708 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 709 | * @retval None |
EricLew | 0:80ee8f3b695e | 710 | */ |
EricLew | 0:80ee8f3b695e | 711 | void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma) |
EricLew | 0:80ee8f3b695e | 712 | { |
EricLew | 0:80ee8f3b695e | 713 | /* Transfer Error Interrupt management ***************************************/ |
EricLew | 0:80ee8f3b695e | 714 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)) != RESET) |
EricLew | 0:80ee8f3b695e | 715 | { |
EricLew | 0:80ee8f3b695e | 716 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TE) != RESET) |
EricLew | 0:80ee8f3b695e | 717 | { |
EricLew | 0:80ee8f3b695e | 718 | /* Disable the transfer error interrupt */ |
EricLew | 0:80ee8f3b695e | 719 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TE); |
EricLew | 0:80ee8f3b695e | 720 | |
EricLew | 0:80ee8f3b695e | 721 | /* Clear the transfer error flag */ |
EricLew | 0:80ee8f3b695e | 722 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 723 | |
EricLew | 0:80ee8f3b695e | 724 | /* Update error code */ |
EricLew | 0:80ee8f3b695e | 725 | hdma->ErrorCode |= HAL_DMA_ERROR_TE; |
EricLew | 0:80ee8f3b695e | 726 | |
EricLew | 0:80ee8f3b695e | 727 | /* Change the DMA state */ |
EricLew | 0:80ee8f3b695e | 728 | hdma->State = HAL_DMA_STATE_ERROR; |
EricLew | 0:80ee8f3b695e | 729 | |
EricLew | 0:80ee8f3b695e | 730 | /* Process Unlocked */ |
EricLew | 0:80ee8f3b695e | 731 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 732 | |
EricLew | 0:80ee8f3b695e | 733 | if (hdma->XferErrorCallback != NULL) |
EricLew | 0:80ee8f3b695e | 734 | { |
EricLew | 0:80ee8f3b695e | 735 | /* Transfer error callback */ |
EricLew | 0:80ee8f3b695e | 736 | hdma->XferErrorCallback(hdma); |
EricLew | 0:80ee8f3b695e | 737 | } |
EricLew | 0:80ee8f3b695e | 738 | } |
EricLew | 0:80ee8f3b695e | 739 | } |
EricLew | 0:80ee8f3b695e | 740 | |
EricLew | 0:80ee8f3b695e | 741 | /* Half Transfer Complete Interrupt management ******************************/ |
EricLew | 0:80ee8f3b695e | 742 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)) != RESET) |
EricLew | 0:80ee8f3b695e | 743 | { |
EricLew | 0:80ee8f3b695e | 744 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_HT) != RESET) |
EricLew | 0:80ee8f3b695e | 745 | { |
EricLew | 0:80ee8f3b695e | 746 | /* Disable the half transfer interrupt if the DMA mode is not CIRCULAR */ |
EricLew | 0:80ee8f3b695e | 747 | if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0) |
EricLew | 0:80ee8f3b695e | 748 | { |
EricLew | 0:80ee8f3b695e | 749 | /* Disable the half transfer interrupt */ |
EricLew | 0:80ee8f3b695e | 750 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT); |
EricLew | 0:80ee8f3b695e | 751 | } |
EricLew | 0:80ee8f3b695e | 752 | /* Clear the half transfer complete flag */ |
EricLew | 0:80ee8f3b695e | 753 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 754 | |
EricLew | 0:80ee8f3b695e | 755 | /* Change DMA peripheral state */ |
EricLew | 0:80ee8f3b695e | 756 | hdma->State = HAL_DMA_STATE_READY_HALF; |
EricLew | 0:80ee8f3b695e | 757 | |
EricLew | 0:80ee8f3b695e | 758 | if(hdma->XferHalfCpltCallback != NULL) |
EricLew | 0:80ee8f3b695e | 759 | { |
EricLew | 0:80ee8f3b695e | 760 | /* Half transfer callback */ |
EricLew | 0:80ee8f3b695e | 761 | hdma->XferHalfCpltCallback(hdma); |
EricLew | 0:80ee8f3b695e | 762 | } |
EricLew | 0:80ee8f3b695e | 763 | } |
EricLew | 0:80ee8f3b695e | 764 | } |
EricLew | 0:80ee8f3b695e | 765 | |
EricLew | 0:80ee8f3b695e | 766 | /* Transfer Complete Interrupt management ***********************************/ |
EricLew | 0:80ee8f3b695e | 767 | if(__HAL_DMA_GET_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)) != RESET) |
EricLew | 0:80ee8f3b695e | 768 | { |
EricLew | 0:80ee8f3b695e | 769 | if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TC) != RESET) |
EricLew | 0:80ee8f3b695e | 770 | { |
EricLew | 0:80ee8f3b695e | 771 | if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0) |
EricLew | 0:80ee8f3b695e | 772 | { |
EricLew | 0:80ee8f3b695e | 773 | /* Disable the transfer complete interrupt */ |
EricLew | 0:80ee8f3b695e | 774 | __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TC); |
EricLew | 0:80ee8f3b695e | 775 | } |
EricLew | 0:80ee8f3b695e | 776 | /* Clear the transfer complete flag */ |
EricLew | 0:80ee8f3b695e | 777 | __HAL_DMA_CLEAR_FLAG(hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
EricLew | 0:80ee8f3b695e | 778 | |
EricLew | 0:80ee8f3b695e | 779 | /* Update error code */ |
EricLew | 0:80ee8f3b695e | 780 | hdma->ErrorCode |= HAL_DMA_ERROR_NONE; |
EricLew | 0:80ee8f3b695e | 781 | |
EricLew | 0:80ee8f3b695e | 782 | /* Change the DMA state */ |
EricLew | 0:80ee8f3b695e | 783 | hdma->State = HAL_DMA_STATE_READY; |
EricLew | 0:80ee8f3b695e | 784 | |
EricLew | 0:80ee8f3b695e | 785 | /* Process Unlocked */ |
EricLew | 0:80ee8f3b695e | 786 | __HAL_UNLOCK(hdma); |
EricLew | 0:80ee8f3b695e | 787 | |
EricLew | 0:80ee8f3b695e | 788 | if(hdma->XferCpltCallback != NULL) |
EricLew | 0:80ee8f3b695e | 789 | { |
EricLew | 0:80ee8f3b695e | 790 | /* Transfer complete callback */ |
EricLew | 0:80ee8f3b695e | 791 | hdma->XferCpltCallback(hdma); |
EricLew | 0:80ee8f3b695e | 792 | } |
EricLew | 0:80ee8f3b695e | 793 | } |
EricLew | 0:80ee8f3b695e | 794 | } |
EricLew | 0:80ee8f3b695e | 795 | } |
EricLew | 0:80ee8f3b695e | 796 | |
EricLew | 0:80ee8f3b695e | 797 | /** |
EricLew | 0:80ee8f3b695e | 798 | * @} |
EricLew | 0:80ee8f3b695e | 799 | */ |
EricLew | 0:80ee8f3b695e | 800 | |
EricLew | 0:80ee8f3b695e | 801 | /** @defgroup DMA_Exported_Functions_Group3 Peripheral State and Errors functions |
EricLew | 0:80ee8f3b695e | 802 | * @brief Peripheral State and Errors functions |
EricLew | 0:80ee8f3b695e | 803 | * |
EricLew | 0:80ee8f3b695e | 804 | @verbatim |
EricLew | 0:80ee8f3b695e | 805 | =============================================================================== |
EricLew | 0:80ee8f3b695e | 806 | ##### Peripheral State and Errors functions ##### |
EricLew | 0:80ee8f3b695e | 807 | =============================================================================== |
EricLew | 0:80ee8f3b695e | 808 | [..] |
EricLew | 0:80ee8f3b695e | 809 | This subsection provides functions allowing to |
EricLew | 0:80ee8f3b695e | 810 | (+) Check the DMA state |
EricLew | 0:80ee8f3b695e | 811 | (+) Get error code |
EricLew | 0:80ee8f3b695e | 812 | |
EricLew | 0:80ee8f3b695e | 813 | @endverbatim |
EricLew | 0:80ee8f3b695e | 814 | * @{ |
EricLew | 0:80ee8f3b695e | 815 | */ |
EricLew | 0:80ee8f3b695e | 816 | |
EricLew | 0:80ee8f3b695e | 817 | /** |
EricLew | 0:80ee8f3b695e | 818 | * @brief Return the DMA hande state. |
EricLew | 0:80ee8f3b695e | 819 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 820 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 821 | * @retval HAL state |
EricLew | 0:80ee8f3b695e | 822 | */ |
EricLew | 0:80ee8f3b695e | 823 | HAL_DMA_StateTypeDef HAL_DMA_GetState(DMA_HandleTypeDef *hdma) |
EricLew | 0:80ee8f3b695e | 824 | { |
EricLew | 0:80ee8f3b695e | 825 | /* Return DMA handle state */ |
EricLew | 0:80ee8f3b695e | 826 | return hdma->State; |
EricLew | 0:80ee8f3b695e | 827 | } |
EricLew | 0:80ee8f3b695e | 828 | |
EricLew | 0:80ee8f3b695e | 829 | /** |
EricLew | 0:80ee8f3b695e | 830 | * @brief Return the DMA error code. |
EricLew | 0:80ee8f3b695e | 831 | * @param hdma : pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 832 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 833 | * @retval DMA Error Code |
EricLew | 0:80ee8f3b695e | 834 | */ |
EricLew | 0:80ee8f3b695e | 835 | uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma) |
EricLew | 0:80ee8f3b695e | 836 | { |
EricLew | 0:80ee8f3b695e | 837 | return hdma->ErrorCode; |
EricLew | 0:80ee8f3b695e | 838 | } |
EricLew | 0:80ee8f3b695e | 839 | |
EricLew | 0:80ee8f3b695e | 840 | /** |
EricLew | 0:80ee8f3b695e | 841 | * @} |
EricLew | 0:80ee8f3b695e | 842 | */ |
EricLew | 0:80ee8f3b695e | 843 | |
EricLew | 0:80ee8f3b695e | 844 | /** |
EricLew | 0:80ee8f3b695e | 845 | * @} |
EricLew | 0:80ee8f3b695e | 846 | */ |
EricLew | 0:80ee8f3b695e | 847 | |
EricLew | 0:80ee8f3b695e | 848 | /** @addtogroup DMA_Private_Functions |
EricLew | 0:80ee8f3b695e | 849 | * @{ |
EricLew | 0:80ee8f3b695e | 850 | */ |
EricLew | 0:80ee8f3b695e | 851 | |
EricLew | 0:80ee8f3b695e | 852 | /** |
EricLew | 0:80ee8f3b695e | 853 | * @brief Sets the DMA Transfer parameter. |
EricLew | 0:80ee8f3b695e | 854 | * @param hdma: pointer to a DMA_HandleTypeDef structure that contains |
EricLew | 0:80ee8f3b695e | 855 | * the configuration information for the specified DMA Channel. |
EricLew | 0:80ee8f3b695e | 856 | * @param SrcAddress: The source memory Buffer address |
EricLew | 0:80ee8f3b695e | 857 | * @param DstAddress: The destination memory Buffer address |
EricLew | 0:80ee8f3b695e | 858 | * @param DataLength: The length of data to be transferred from source to destination |
EricLew | 0:80ee8f3b695e | 859 | * @retval HAL status |
EricLew | 0:80ee8f3b695e | 860 | */ |
EricLew | 0:80ee8f3b695e | 861 | static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
EricLew | 0:80ee8f3b695e | 862 | { |
EricLew | 0:80ee8f3b695e | 863 | /* Configure DMA Channel data length */ |
EricLew | 0:80ee8f3b695e | 864 | hdma->Instance->CNDTR = DataLength; |
EricLew | 0:80ee8f3b695e | 865 | |
EricLew | 0:80ee8f3b695e | 866 | /* Peripheral to Memory */ |
EricLew | 0:80ee8f3b695e | 867 | if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH) |
EricLew | 0:80ee8f3b695e | 868 | { |
EricLew | 0:80ee8f3b695e | 869 | /* Configure DMA Channel destination address */ |
EricLew | 0:80ee8f3b695e | 870 | hdma->Instance->CPAR = DstAddress; |
EricLew | 0:80ee8f3b695e | 871 | |
EricLew | 0:80ee8f3b695e | 872 | /* Configure DMA Channel source address */ |
EricLew | 0:80ee8f3b695e | 873 | hdma->Instance->CMAR = SrcAddress; |
EricLew | 0:80ee8f3b695e | 874 | } |
EricLew | 0:80ee8f3b695e | 875 | /* Memory to Peripheral */ |
EricLew | 0:80ee8f3b695e | 876 | else |
EricLew | 0:80ee8f3b695e | 877 | { |
EricLew | 0:80ee8f3b695e | 878 | /* Configure DMA Channel source address */ |
EricLew | 0:80ee8f3b695e | 879 | hdma->Instance->CPAR = SrcAddress; |
EricLew | 0:80ee8f3b695e | 880 | |
EricLew | 0:80ee8f3b695e | 881 | /* Configure DMA Channel destination address */ |
EricLew | 0:80ee8f3b695e | 882 | hdma->Instance->CMAR = DstAddress; |
EricLew | 0:80ee8f3b695e | 883 | } |
EricLew | 0:80ee8f3b695e | 884 | } |
EricLew | 0:80ee8f3b695e | 885 | |
EricLew | 0:80ee8f3b695e | 886 | /** |
EricLew | 0:80ee8f3b695e | 887 | * @} |
EricLew | 0:80ee8f3b695e | 888 | */ |
EricLew | 0:80ee8f3b695e | 889 | |
EricLew | 0:80ee8f3b695e | 890 | #endif /* HAL_DMA_MODULE_ENABLED */ |
EricLew | 0:80ee8f3b695e | 891 | /** |
EricLew | 0:80ee8f3b695e | 892 | * @} |
EricLew | 0:80ee8f3b695e | 893 | */ |
EricLew | 0:80ee8f3b695e | 894 | |
EricLew | 0:80ee8f3b695e | 895 | /** |
EricLew | 0:80ee8f3b695e | 896 | * @} |
EricLew | 0:80ee8f3b695e | 897 | */ |
EricLew | 0:80ee8f3b695e | 898 | |
EricLew | 0:80ee8f3b695e | 899 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
EricLew | 0:80ee8f3b695e | 900 |