mbed library sources. Supersedes mbed-src.
Fork of mbed-dev by
targets/TARGET_STM/TARGET_STM32L4/device/stm32l4xx_hal_spi_ex.c@181:96ed750bd169, 2018-01-17 (annotated)
- Committer:
- Anna Bridge
- Date:
- Wed Jan 17 15:23:54 2018 +0000
- Revision:
- 181:96ed750bd169
- Parent:
- 167:e84263d55307
mbed-dev libray. Release version 158
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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<> | 144:ef7eb2e8f9f7 | 1 | /** |
<> | 144:ef7eb2e8f9f7 | 2 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 3 | * @file stm32l4xx_hal_spi_ex.c |
<> | 144:ef7eb2e8f9f7 | 4 | * @author MCD Application Team |
AnnaBridge | 167:e84263d55307 | 5 | * @version V1.7.1 |
AnnaBridge | 167:e84263d55307 | 6 | * @date 21-April-2017 |
<> | 144:ef7eb2e8f9f7 | 7 | * @brief Extended SPI HAL module driver. |
<> | 144:ef7eb2e8f9f7 | 8 | * This file provides firmware functions to manage the following |
<> | 144:ef7eb2e8f9f7 | 9 | * SPI peripheral extended functionalities : |
<> | 144:ef7eb2e8f9f7 | 10 | * + IO operation functions |
<> | 144:ef7eb2e8f9f7 | 11 | * |
<> | 144:ef7eb2e8f9f7 | 12 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 13 | * @attention |
<> | 144:ef7eb2e8f9f7 | 14 | * |
AnnaBridge | 167:e84263d55307 | 15 | * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
<> | 144:ef7eb2e8f9f7 | 16 | * |
<> | 144:ef7eb2e8f9f7 | 17 | * Redistribution and use in source and binary forms, with or without modification, |
<> | 144:ef7eb2e8f9f7 | 18 | * are permitted provided that the following conditions are met: |
<> | 144:ef7eb2e8f9f7 | 19 | * 1. Redistributions of source code must retain the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 20 | * this list of conditions and the following disclaimer. |
<> | 144:ef7eb2e8f9f7 | 21 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 22 | * this list of conditions and the following disclaimer in the documentation |
<> | 144:ef7eb2e8f9f7 | 23 | * and/or other materials provided with the distribution. |
<> | 144:ef7eb2e8f9f7 | 24 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
<> | 144:ef7eb2e8f9f7 | 25 | * may be used to endorse or promote products derived from this software |
<> | 144:ef7eb2e8f9f7 | 26 | * without specific prior written permission. |
<> | 144:ef7eb2e8f9f7 | 27 | * |
<> | 144:ef7eb2e8f9f7 | 28 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
<> | 144:ef7eb2e8f9f7 | 29 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
<> | 144:ef7eb2e8f9f7 | 30 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
<> | 144:ef7eb2e8f9f7 | 31 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
<> | 144:ef7eb2e8f9f7 | 32 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
<> | 144:ef7eb2e8f9f7 | 33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
<> | 144:ef7eb2e8f9f7 | 34 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
<> | 144:ef7eb2e8f9f7 | 35 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
<> | 144:ef7eb2e8f9f7 | 36 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
<> | 144:ef7eb2e8f9f7 | 37 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
<> | 144:ef7eb2e8f9f7 | 38 | * |
<> | 144:ef7eb2e8f9f7 | 39 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 40 | */ |
<> | 144:ef7eb2e8f9f7 | 41 | |
<> | 144:ef7eb2e8f9f7 | 42 | /* Includes ------------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 43 | #include "stm32l4xx_hal.h" |
<> | 144:ef7eb2e8f9f7 | 44 | |
<> | 144:ef7eb2e8f9f7 | 45 | /** @addtogroup STM32L4xx_HAL_Driver |
<> | 144:ef7eb2e8f9f7 | 46 | * @{ |
<> | 144:ef7eb2e8f9f7 | 47 | */ |
<> | 144:ef7eb2e8f9f7 | 48 | |
<> | 144:ef7eb2e8f9f7 | 49 | /** @defgroup SPIEx SPIEx |
<> | 144:ef7eb2e8f9f7 | 50 | * @brief SPI Extended HAL module driver |
<> | 144:ef7eb2e8f9f7 | 51 | * @{ |
<> | 144:ef7eb2e8f9f7 | 52 | */ |
<> | 144:ef7eb2e8f9f7 | 53 | #ifdef HAL_SPI_MODULE_ENABLED |
<> | 144:ef7eb2e8f9f7 | 54 | |
<> | 144:ef7eb2e8f9f7 | 55 | /* Private typedef -----------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 56 | /* Private defines -----------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 57 | /** @defgroup SPIEx_Private_Constants SPIEx Private Constants |
<> | 144:ef7eb2e8f9f7 | 58 | * @{ |
<> | 144:ef7eb2e8f9f7 | 59 | */ |
<> | 144:ef7eb2e8f9f7 | 60 | #define SPI_FIFO_SIZE 4 |
<> | 144:ef7eb2e8f9f7 | 61 | /** |
<> | 144:ef7eb2e8f9f7 | 62 | * @} |
<> | 144:ef7eb2e8f9f7 | 63 | */ |
<> | 144:ef7eb2e8f9f7 | 64 | |
<> | 144:ef7eb2e8f9f7 | 65 | /* Private macros ------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 66 | /* Private variables ---------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 67 | /* Private function prototypes -----------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 68 | /* Exported functions ---------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 69 | |
<> | 144:ef7eb2e8f9f7 | 70 | /** @defgroup SPIEx_Exported_Functions SPIEx Exported Functions |
<> | 144:ef7eb2e8f9f7 | 71 | * @{ |
<> | 144:ef7eb2e8f9f7 | 72 | */ |
<> | 144:ef7eb2e8f9f7 | 73 | |
<> | 144:ef7eb2e8f9f7 | 74 | /** @defgroup SPIEx_Exported_Functions_Group1 IO operation functions |
AnnaBridge | 167:e84263d55307 | 75 | * @brief Data transfers functions |
AnnaBridge | 167:e84263d55307 | 76 | * |
<> | 144:ef7eb2e8f9f7 | 77 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 78 | ============================================================================== |
<> | 144:ef7eb2e8f9f7 | 79 | ##### IO operation functions ##### |
<> | 144:ef7eb2e8f9f7 | 80 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 81 | [..] |
<> | 144:ef7eb2e8f9f7 | 82 | This subsection provides a set of extended functions to manage the SPI |
<> | 144:ef7eb2e8f9f7 | 83 | data transfers. |
<> | 144:ef7eb2e8f9f7 | 84 | |
<> | 144:ef7eb2e8f9f7 | 85 | (#) Rx data flush function: |
<> | 144:ef7eb2e8f9f7 | 86 | (++) HAL_SPIEx_FlushRxFifo() |
<> | 144:ef7eb2e8f9f7 | 87 | |
<> | 144:ef7eb2e8f9f7 | 88 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 89 | * @{ |
<> | 144:ef7eb2e8f9f7 | 90 | */ |
<> | 144:ef7eb2e8f9f7 | 91 | |
<> | 144:ef7eb2e8f9f7 | 92 | /** |
<> | 144:ef7eb2e8f9f7 | 93 | * @brief Flush the RX fifo. |
<> | 144:ef7eb2e8f9f7 | 94 | * @param hspi: pointer to a SPI_HandleTypeDef structure that contains |
<> | 144:ef7eb2e8f9f7 | 95 | * the configuration information for the specified SPI module. |
<> | 144:ef7eb2e8f9f7 | 96 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 97 | */ |
<> | 144:ef7eb2e8f9f7 | 98 | HAL_StatusTypeDef HAL_SPIEx_FlushRxFifo(SPI_HandleTypeDef *hspi) |
<> | 144:ef7eb2e8f9f7 | 99 | { |
<> | 144:ef7eb2e8f9f7 | 100 | __IO uint32_t tmpreg; |
AnnaBridge | 167:e84263d55307 | 101 | uint8_t count = 0U; |
AnnaBridge | 167:e84263d55307 | 102 | while ((hspi->Instance->SR & SPI_FLAG_FRLVL) != SPI_FRLVL_EMPTY) |
<> | 144:ef7eb2e8f9f7 | 103 | { |
<> | 144:ef7eb2e8f9f7 | 104 | count++; |
<> | 144:ef7eb2e8f9f7 | 105 | tmpreg = hspi->Instance->DR; |
<> | 144:ef7eb2e8f9f7 | 106 | UNUSED(tmpreg); /* To avoid GCC warning */ |
AnnaBridge | 167:e84263d55307 | 107 | if (count == SPI_FIFO_SIZE) |
<> | 144:ef7eb2e8f9f7 | 108 | { |
<> | 144:ef7eb2e8f9f7 | 109 | return HAL_TIMEOUT; |
<> | 144:ef7eb2e8f9f7 | 110 | } |
<> | 144:ef7eb2e8f9f7 | 111 | } |
<> | 144:ef7eb2e8f9f7 | 112 | return HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 113 | } |
<> | 144:ef7eb2e8f9f7 | 114 | |
<> | 144:ef7eb2e8f9f7 | 115 | /** |
<> | 144:ef7eb2e8f9f7 | 116 | * @} |
<> | 144:ef7eb2e8f9f7 | 117 | */ |
<> | 144:ef7eb2e8f9f7 | 118 | |
<> | 144:ef7eb2e8f9f7 | 119 | /** |
<> | 144:ef7eb2e8f9f7 | 120 | * @} |
<> | 144:ef7eb2e8f9f7 | 121 | */ |
<> | 144:ef7eb2e8f9f7 | 122 | |
<> | 144:ef7eb2e8f9f7 | 123 | #endif /* HAL_SPI_MODULE_ENABLED */ |
<> | 144:ef7eb2e8f9f7 | 124 | |
<> | 144:ef7eb2e8f9f7 | 125 | /** |
<> | 144:ef7eb2e8f9f7 | 126 | * @} |
<> | 144:ef7eb2e8f9f7 | 127 | */ |
<> | 144:ef7eb2e8f9f7 | 128 | |
<> | 144:ef7eb2e8f9f7 | 129 | /** |
<> | 144:ef7eb2e8f9f7 | 130 | * @} |
<> | 144:ef7eb2e8f9f7 | 131 | */ |
<> | 144:ef7eb2e8f9f7 | 132 | |
<> | 144:ef7eb2e8f9f7 | 133 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |