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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_crc_ex.c')
-rw-r--r-- | c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_crc_ex.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_crc_ex.c b/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_crc_ex.c deleted file mode 100644 index 9f6fc82458..0000000000 --- a/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_crc_ex.c +++ /dev/null @@ -1,241 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f7xx_hal_crc_ex.c - * @author MCD Application Team - * @version V1.0.1 - * @date 25-June-2015 - * @brief Extended CRC HAL module driver. - * - * This file provides firmware functions to manage the following - * functionalities of the CRC peripheral: - * + Initialization/de-initialization functions - * - @verbatim - ============================================================================== - ##### CRC specific features ##### - ============================================================================== - [..] - (#) Polynomial configuration. - (#) Input data reverse mode. - (#) Output data reverse mode. - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f7xx_hal.h" - -/** @addtogroup STM32F7xx_HAL_Driver - * @{ - */ - -/** @addtogroup CRCEx - * @brief CRC Extended HAL module driver - * @{ - */ - -#ifdef HAL_CRC_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/* Private functions ---------------------------------------------------------*/ - -/** @addtogroup CRCEx_Exported_Functions - * @{ - */ - -/** @addtogroup CRCEx_Exported_Functions_Group1 - * @brief Extended CRC features functions - * -@verbatim - =============================================================================== - ##### CRC Extended features functions ##### - =============================================================================== - [..] -This subsection provides function allowing to: - (+) Set CRC polynomial if different from default one. - -@endverbatim - * @{ - */ - - -/** - * @brief Initializes the CRC polynomial if different from default one. - * @param hcrc: CRC handle - * @param Pol: CRC generating polynomial (7, 8, 16 or 32-bit long) - * This parameter is written in normal representation, e.g. - * for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65 - * for a polynomial of degree 16, X^16 + X^12 + X^5 + 1 is written 0x1021 - * @param PolyLength: CRC polynomial length - * This parameter can be one of the following values: - * @arg CRC_POLYLENGTH_7B: 7-bit long CRC (generating polynomial of degree 7) - * @arg CRC_POLYLENGTH_8B: 8-bit long CRC (generating polynomial of degree 8) - * @arg CRC_POLYLENGTH_16B: 16-bit long CRC (generating polynomial of degree 16) - * @arg CRC_POLYLENGTH_32B: 32-bit long CRC (generating polynomial of degree 32) - * @retval HAL status - */ -HAL_StatusTypeDef HAL_CRCEx_Polynomial_Set(CRC_HandleTypeDef *hcrc, uint32_t Pol, uint32_t PolyLength) -{ - uint32_t msb = 31; /* polynomial degree is 32 at most, so msb is initialized to max value */ - - /* Check the parameters */ - assert_param(IS_CRC_POL_LENGTH(PolyLength)); - - /* check polynomial definition vs polynomial size: - * polynomial length must be aligned with polynomial - * definition. HAL_ERROR is reported if Pol degree is - * larger than that indicated by PolyLength. - * Look for MSB position: msb will contain the degree of - * the second to the largest polynomial member. E.g., for - * X^7 + X^6 + X^5 + X^2 + 1, msb = 6. */ - while (((Pol & ((uint32_t)(0x1) << msb)) == 0) && (msb-- > 0)) - { - } - - switch (PolyLength) - { - case CRC_POLYLENGTH_7B: - if (msb >= HAL_CRC_LENGTH_7B) - { - return HAL_ERROR; - } - break; - case CRC_POLYLENGTH_8B: - if (msb >= HAL_CRC_LENGTH_8B) - { - return HAL_ERROR; - } - break; - case CRC_POLYLENGTH_16B: - if (msb >= HAL_CRC_LENGTH_16B) - { - return HAL_ERROR; - } - break; - case CRC_POLYLENGTH_32B: - /* no polynomial definition vs. polynomial length issue possible */ - break; - default: - break; - } - - /* set generating polynomial */ - WRITE_REG(hcrc->Instance->POL, Pol); - - /* set generating polynomial size */ - MODIFY_REG(hcrc->Instance->CR, CRC_CR_POLYSIZE, PolyLength); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Set the Reverse Input data mode. - * @param hcrc: CRC handle - * @param InputReverseMode: Input Data inversion mode - * This parameter can be one of the following values: - * @arg CRC_INPUTDATA_INVERSION_NONE: no change in bit order (default value) - * @arg CRC_INPUTDATA_INVERSION_BYTE: Byte-wise bit reversal - * @arg CRC_INPUTDATA_INVERSION_HALFWORD: HalfWord-wise bit reversal - * @arg CRC_INPUTDATA_INVERSION_WORD: Word-wise bit reversal - * @retval HAL status - */ -HAL_StatusTypeDef HAL_CRCEx_Input_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t InputReverseMode) -{ - /* Check the parameters */ - assert_param(IS_CRC_INPUTDATA_INVERSION_MODE(InputReverseMode)); - - /* Change CRC peripheral state */ - hcrc->State = HAL_CRC_STATE_BUSY; - - /* set input data inversion mode */ - MODIFY_REG(hcrc->Instance->CR, CRC_CR_REV_IN, InputReverseMode); - /* Change CRC peripheral state */ - hcrc->State = HAL_CRC_STATE_READY; - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Set the Reverse Output data mode. - * @param hcrc: CRC handle - * @param OutputReverseMode: Output Data inversion mode - * This parameter can be one of the following values: - * @arg CRC_OUTPUTDATA_INVERSION_DISABLE: no CRC inversion (default value) - * @arg CRC_OUTPUTDATA_INVERSION_ENABLE: bit-level inversion (e.g for a 8-bit CRC: 0xB5 becomes 0xAD) - * @retval HAL status - */ -HAL_StatusTypeDef HAL_CRCEx_Output_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t OutputReverseMode) -{ - /* Check the parameters */ - assert_param(IS_CRC_OUTPUTDATA_INVERSION_MODE(OutputReverseMode)); - - /* Change CRC peripheral state */ - hcrc->State = HAL_CRC_STATE_BUSY; - - /* set output data inversion mode */ - MODIFY_REG(hcrc->Instance->CR, CRC_CR_REV_OUT, OutputReverseMode); - - /* Change CRC peripheral state */ - hcrc->State = HAL_CRC_STATE_READY; - - /* Return function status */ - return HAL_OK; -} - - - - -/** - * @} - */ - - -/** - * @} - */ - - -#endif /* HAL_CRC_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |