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  1. /**
  2.   ******************************************************************************
  3.   * @file    stm32l1xx_hal_spi.h
  4.   * @author  MCD Application Team
  5.   * @version V1.2.0
  6.   * @date    01-July-2016
  7.   * @brief   Header file of SPI HAL module.
  8.   ******************************************************************************
  9.   * @attention
  10.   *
  11.   * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
  12.   *
  13.   * Redistribution and use in source and binary forms, with or without modification,
  14.   * are permitted provided that the following conditions are met:
  15.   *   1. Redistributions of source code must retain the above copyright notice,
  16.   *      this list of conditions and the following disclaimer.
  17.   *   2. Redistributions in binary form must reproduce the above copyright notice,
  18.   *      this list of conditions and the following disclaimer in the documentation
  19.   *      and/or other materials provided with the distribution.
  20.   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  21.   *      may be used to endorse or promote products derived from this software
  22.   *      without specific prior written permission.
  23.   *
  24.   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25.   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26.   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27.   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  28.   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29.   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30.   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  31.   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  32.   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33.   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34.   *
  35.   ******************************************************************************
  36.   */
  37.  
  38. /* Define to prevent recursive inclusion -------------------------------------*/
  39. #ifndef __STM32L1xx_HAL_SPI_H
  40. #define __STM32L1xx_HAL_SPI_H
  41.  
  42. #ifdef __cplusplus
  43.  extern "C" {
  44. #endif
  45.  
  46. /* Includes ------------------------------------------------------------------*/
  47. #include "stm32l1xx_hal_def.h"  
  48.  
  49. /** @addtogroup STM32L1xx_HAL_Driver
  50.   * @{
  51.   */
  52.  
  53. /** @addtogroup SPI
  54.   * @{
  55.   */
  56.  
  57. /* Exported types ------------------------------------------------------------*/
  58. /** @defgroup SPI_Exported_Types SPI Exported Types
  59.   * @{
  60.   */
  61.  
  62. /**
  63.   * @brief  SPI Configuration Structure definition  
  64.   */
  65. typedef struct
  66. {
  67.   uint32_t Mode;               /*!< Specifies the SPI operating mode.
  68.                                     This parameter can be a value of @ref SPI_mode */
  69.  
  70.   uint32_t Direction;          /*!< Specifies the SPI Directional mode state.
  71.                                     This parameter can be a value of @ref SPI_Direction_mode */
  72.  
  73.   uint32_t DataSize;           /*!< Specifies the SPI data size.
  74.                                     This parameter can be a value of @ref SPI_data_size */
  75.  
  76.   uint32_t CLKPolarity;        /*!< Specifies the serial clock steady state.
  77.                                     This parameter can be a value of @ref SPI_Clock_Polarity */
  78.  
  79.   uint32_t CLKPhase;           /*!< Specifies the clock active edge for the bit capture.
  80.                                     This parameter can be a value of @ref SPI_Clock_Phase */
  81.  
  82.   uint32_t NSS;                /*!< Specifies whether the NSS signal is managed by
  83.                                     hardware (NSS pin) or by software using the SSI bit.
  84.                                     This parameter can be a value of @ref SPI_Slave_Select_management */
  85.  
  86.   uint32_t BaudRatePrescaler;  /*!< Specifies the Baud Rate prescaler value which will be
  87.                                     used to configure the transmit and receive SCK clock.
  88.                                     This parameter can be a value of @ref SPI_BaudRate_Prescaler
  89.                                     @note The communication clock is derived from the master
  90.                                     clock. The slave clock does not need to be set */
  91.  
  92.   uint32_t FirstBit;           /*!< Specifies whether data transfers start from MSB or LSB bit.
  93.                                     This parameter can be a value of @ref SPI_MSB_LSB_transmission */
  94.  
  95.   uint32_t TIMode;             /*!< Specifies if the TI mode is enabled or not.
  96.                                     This parameter can be a value of @ref SPI_TI_mode */
  97.  
  98.   uint32_t CRCCalculation;     /*!< Specifies if the CRC calculation is enabled or not.
  99.                                     This parameter can be a value of @ref SPI_CRC_Calculation */
  100.  
  101.   uint32_t CRCPolynomial;      /*!< Specifies the polynomial used for the CRC calculation.
  102.                                     This parameter must be a number between Min_Data = 0 and Max_Data = 65535 */
  103.  
  104. }SPI_InitTypeDef;
  105.  
  106. /**
  107.   * @brief  HAL SPI State structure definition
  108.   */
  109. typedef enum
  110. {
  111.   HAL_SPI_STATE_RESET      = 0x00,  /*!< SPI not yet initialized or disabled                */
  112.   HAL_SPI_STATE_READY      = 0x01,  /*!< SPI initialized and ready for use                  */
  113.   HAL_SPI_STATE_BUSY       = 0x02,  /*!< SPI process is ongoing                             */
  114.   HAL_SPI_STATE_BUSY_TX    = 0x12,  /*!< Data Transmission process is ongoing               */
  115.   HAL_SPI_STATE_BUSY_RX    = 0x22,  /*!< Data Reception process is ongoing                  */
  116.   HAL_SPI_STATE_BUSY_TX_RX = 0x32,  /*!< Data Transmission and Reception process is ongoing */
  117.   HAL_SPI_STATE_ERROR      = 0x03   /*!< SPI error state                                    */
  118.    
  119. }HAL_SPI_StateTypeDef;
  120.  
  121. /**
  122.   * @brief  SPI handle Structure definition
  123.   */
  124. typedef struct __SPI_HandleTypeDef
  125. {
  126.   SPI_TypeDef                *Instance;    /* SPI registers base address */
  127.  
  128.   SPI_InitTypeDef            Init;         /* SPI communication parameters */
  129.  
  130.   uint8_t                    *pTxBuffPtr;  /* Pointer to SPI Tx transfer Buffer */
  131.  
  132.   uint16_t                   TxXferSize;   /* SPI Tx transfer size */
  133.  
  134.   __IO uint16_t              TxXferCount;  /* SPI Tx Transfer Counter */
  135.  
  136.   uint8_t                    *pRxBuffPtr;  /* Pointer to SPI Rx transfer Buffer */
  137.  
  138.   uint16_t                   RxXferSize;   /* SPI Rx transfer size */
  139.  
  140.   __IO uint16_t              RxXferCount;  /* SPI Rx Transfer Counter */
  141.  
  142.   DMA_HandleTypeDef          *hdmatx;      /* SPI Tx DMA handle parameters */
  143.  
  144.   DMA_HandleTypeDef          *hdmarx;      /* SPI Rx DMA handle parameters */
  145.  
  146.   void                       (*RxISR)(struct __SPI_HandleTypeDef * hspi); /* function pointer on Rx ISR */
  147.  
  148.   void                       (*TxISR)(struct __SPI_HandleTypeDef * hspi); /* function pointer on Tx ISR */
  149.  
  150.   HAL_LockTypeDef            Lock;         /* SPI locking object */
  151.  
  152.   __IO HAL_SPI_StateTypeDef  State;        /* SPI communication state */
  153.  
  154.   __IO uint32_t              ErrorCode;         /* SPI Error code */
  155.  
  156. }SPI_HandleTypeDef;
  157. /**
  158.   * @}
  159.   */
  160.  
  161.  
  162. /* Exported constants --------------------------------------------------------*/
  163.  
  164. /** @defgroup SPI_Exported_Constants SPI Exported Constants
  165.   * @{
  166.   */
  167.  
  168. /** @defgroup SPI_Error_Codes SPI Error Codes
  169.   * @{
  170.   */
  171. #define HAL_SPI_ERROR_NONE      ((uint32_t)0x00)    /*!< No error             */
  172. #define HAL_SPI_ERROR_MODF      ((uint32_t)0x01)    /*!< MODF error           */
  173. #define HAL_SPI_ERROR_CRC       ((uint32_t)0x02)    /*!< CRC error            */
  174. #define HAL_SPI_ERROR_OVR       ((uint32_t)0x04)    /*!< OVR error            */
  175. #define HAL_SPI_ERROR_FRE       ((uint32_t)0x08)    /*!< FRE error            */
  176. #define HAL_SPI_ERROR_DMA       ((uint32_t)0x10)    /*!< DMA transfer error   */
  177. #define HAL_SPI_ERROR_FLAG      ((uint32_t)0x20)    /*!< Flag: RXNE,TXE, BSY  */
  178.  
  179. /**
  180.   * @}
  181.   */
  182.  
  183. /** @defgroup SPI_mode SPI mode
  184.   * @{
  185.   */
  186. #define SPI_MODE_SLAVE                  ((uint32_t)0x00000000)
  187. #define SPI_MODE_MASTER                 (SPI_CR1_MSTR | SPI_CR1_SSI)
  188.  
  189. #define IS_SPI_MODE(MODE) (((MODE) == SPI_MODE_SLAVE) || \
  190.                            ((MODE) == SPI_MODE_MASTER))
  191. /**
  192.   * @}
  193.   */
  194.  
  195. /** @defgroup SPI_Direction_mode SPI Direction mode
  196.   * @{
  197.   */
  198. #define SPI_DIRECTION_2LINES             ((uint32_t)0x00000000)
  199. #define SPI_DIRECTION_2LINES_RXONLY      SPI_CR1_RXONLY
  200. #define SPI_DIRECTION_1LINE              SPI_CR1_BIDIMODE
  201.  
  202. #define IS_SPI_DIRECTION_MODE(MODE) (((MODE) == SPI_DIRECTION_2LINES)        || \
  203.                                      ((MODE) == SPI_DIRECTION_2LINES_RXONLY) || \
  204.                                      ((MODE) == SPI_DIRECTION_1LINE))
  205.  
  206. #define IS_SPI_DIRECTION_2LINES_OR_1LINE(MODE) (((MODE) == SPI_DIRECTION_2LINES)  || \
  207.                                                 ((MODE) == SPI_DIRECTION_1LINE))
  208.  
  209. #define IS_SPI_DIRECTION_2LINES(MODE) ((MODE) == SPI_DIRECTION_2LINES)
  210.  
  211. /**
  212.   * @}
  213.   */
  214.  
  215. /** @defgroup SPI_data_size SPI data size
  216.   * @{
  217.   */
  218. #define SPI_DATASIZE_8BIT               ((uint32_t)0x00000000)
  219. #define SPI_DATASIZE_16BIT              SPI_CR1_DFF
  220.  
  221. #define IS_SPI_DATASIZE(DATASIZE) (((DATASIZE) == SPI_DATASIZE_16BIT) || \
  222.                                    ((DATASIZE) == SPI_DATASIZE_8BIT))
  223. /**
  224.   * @}
  225.   */
  226.  
  227. /** @defgroup SPI_Clock_Polarity SPI Clock Polarity
  228.   * @{
  229.   */
  230. #define SPI_POLARITY_LOW                ((uint32_t)0x00000000)
  231. #define SPI_POLARITY_HIGH               SPI_CR1_CPOL
  232.  
  233. #define IS_SPI_CPOL(CPOL) (((CPOL) == SPI_POLARITY_LOW) || \
  234.                            ((CPOL) == SPI_POLARITY_HIGH))
  235. /**
  236.   * @}
  237.   */
  238.  
  239. /** @defgroup SPI_Clock_Phase SPI Clock Phase
  240.   * @{
  241.   */
  242. #define SPI_PHASE_1EDGE                 ((uint32_t)0x00000000)
  243. #define SPI_PHASE_2EDGE                 SPI_CR1_CPHA
  244.  
  245. #define IS_SPI_CPHA(CPHA) (((CPHA) == SPI_PHASE_1EDGE) || \
  246.                            ((CPHA) == SPI_PHASE_2EDGE))
  247. /**
  248.   * @}
  249.   */
  250.  
  251. /** @defgroup SPI_Slave_Select_management SPI Slave Select management
  252.   * @{
  253.   */
  254. #define SPI_NSS_SOFT                    SPI_CR1_SSM
  255. #define SPI_NSS_HARD_INPUT              ((uint32_t)0x00000000)
  256. #define SPI_NSS_HARD_OUTPUT             ((uint32_t)(SPI_CR2_SSOE << 16))
  257.  
  258. #define IS_SPI_NSS(NSS) (((NSS) == SPI_NSS_SOFT)       || \
  259.                          ((NSS) == SPI_NSS_HARD_INPUT) || \
  260.                          ((NSS) == SPI_NSS_HARD_OUTPUT))
  261. /**
  262.   * @}
  263.   */
  264.  
  265. /** @defgroup SPI_BaudRate_Prescaler SPI BaudRate Prescaler
  266.   * @{
  267.   */
  268. #define SPI_BAUDRATEPRESCALER_2         ((uint32_t)0x00000000)
  269. #define SPI_BAUDRATEPRESCALER_4         ((uint32_t)SPI_CR1_BR_0)
  270. #define SPI_BAUDRATEPRESCALER_8         ((uint32_t)SPI_CR1_BR_1)
  271. #define SPI_BAUDRATEPRESCALER_16        ((uint32_t)SPI_CR1_BR_1 | SPI_CR1_BR_0)
  272. #define SPI_BAUDRATEPRESCALER_32        ((uint32_t)SPI_CR1_BR_2)
  273. #define SPI_BAUDRATEPRESCALER_64        ((uint32_t)SPI_CR1_BR_2 | SPI_CR1_BR_0)
  274. #define SPI_BAUDRATEPRESCALER_128       ((uint32_t)SPI_CR1_BR_2 | SPI_CR1_BR_1)
  275. #define SPI_BAUDRATEPRESCALER_256       ((uint32_t)SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0)
  276.  
  277. #define IS_SPI_BAUDRATE_PRESCALER(PRESCALER) (((PRESCALER) == SPI_BAUDRATEPRESCALER_2)   || \
  278.                                               ((PRESCALER) == SPI_BAUDRATEPRESCALER_4)   || \
  279.                                               ((PRESCALER) == SPI_BAUDRATEPRESCALER_8)   || \
  280.                                               ((PRESCALER) == SPI_BAUDRATEPRESCALER_16)  || \
  281.                                               ((PRESCALER) == SPI_BAUDRATEPRESCALER_32)  || \
  282.                                               ((PRESCALER) == SPI_BAUDRATEPRESCALER_64)  || \
  283.                                               ((PRESCALER) == SPI_BAUDRATEPRESCALER_128) || \
  284.                                               ((PRESCALER) == SPI_BAUDRATEPRESCALER_256))
  285. /**
  286.   * @}
  287.   */
  288.  
  289. /** @defgroup SPI_MSB_LSB_transmission SPI MSB LSB transmission
  290.   * @{
  291.   */
  292. #define SPI_FIRSTBIT_MSB                ((uint32_t)0x00000000)
  293. #define SPI_FIRSTBIT_LSB                SPI_CR1_LSBFIRST
  294.  
  295. #define IS_SPI_FIRST_BIT(BIT) (((BIT) == SPI_FIRSTBIT_MSB) || \
  296.                                ((BIT) == SPI_FIRSTBIT_LSB))
  297. /**
  298.   * @}
  299.   */
  300.  
  301. /** @defgroup SPI_CRC_Calculation SPI CRC Calculation
  302.   * @{
  303.   */
  304. #define SPI_CRCCALCULATION_DISABLE     ((uint32_t)0x00000000)
  305. #define SPI_CRCCALCULATION_ENABLE      SPI_CR1_CRCEN
  306.  
  307. #define IS_SPI_CRC_CALCULATION(CALCULATION) (((CALCULATION) == SPI_CRCCALCULATION_DISABLE) || \
  308.                                              ((CALCULATION) == SPI_CRCCALCULATION_ENABLE))
  309.  
  310. #define IS_SPI_CRC_POLYNOMIAL(POLYNOMIAL) (((POLYNOMIAL) >= 0x1) && ((POLYNOMIAL) <= 0xFFFF))
  311. /**
  312.   * @}
  313.   */
  314.  
  315. /** @defgroup SPI_Interrupt_configuration_definition SPI Interrupt configuration definition
  316.   * @{
  317.   */
  318. #define SPI_IT_TXE                      SPI_CR2_TXEIE
  319. #define SPI_IT_RXNE                     SPI_CR2_RXNEIE
  320. #define SPI_IT_ERR                      SPI_CR2_ERRIE
  321. /**
  322.   * @}
  323.   */
  324.  
  325. /** @defgroup SPI_Flag_definition SPI Flag definition
  326.   * @{
  327.   */
  328. #define SPI_FLAG_RXNE                   SPI_SR_RXNE
  329. #define SPI_FLAG_TXE                    SPI_SR_TXE
  330. #define SPI_FLAG_CRCERR                 SPI_SR_CRCERR
  331. #define SPI_FLAG_MODF                   SPI_SR_MODF
  332. #define SPI_FLAG_OVR                    SPI_SR_OVR
  333. #define SPI_FLAG_BSY                    SPI_SR_BSY
  334. #define SPI_FLAG_FRE                    SPI_SR_FRE
  335.  
  336. /**
  337.   * @}
  338.   */
  339.  
  340. /**
  341.   * @}
  342.   */
  343.  
  344.  
  345. /* Exported macro ------------------------------------------------------------*/
  346. /** @defgroup SPI_Exported_Macros SPI Exported Macros
  347.   * @{
  348.   */
  349.  
  350. /** @brief Reset SPI handle state
  351.   * @param  __HANDLE__: specifies the SPI handle.
  352.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  353.   * @retval None
  354.   */
  355. #define __HAL_SPI_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_SPI_STATE_RESET)
  356.  
  357. /** @brief  Enable or disable the specified SPI interrupts.
  358.   * @param  __HANDLE__: specifies the SPI handle.
  359.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  360.   * @param  __INTERRUPT__: specifies the interrupt source to enable or disable.
  361.   *         This parameter can be one of the following values:
  362.   *            @arg SPI_IT_TXE: Tx buffer empty interrupt enable
  363.   *            @arg SPI_IT_RXNE: RX buffer not empty interrupt enable
  364.   *            @arg SPI_IT_ERR: Error interrupt enable
  365.   * @retval None
  366.   */
  367. #define __HAL_SPI_ENABLE_IT(__HANDLE__, __INTERRUPT__)   SET_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__))
  368. #define __HAL_SPI_DISABLE_IT(__HANDLE__, __INTERRUPT__)  CLEAR_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__))
  369.  
  370. /** @brief  Check if the specified SPI interrupt source is enabled or disabled.
  371.   * @param  __HANDLE__: specifies the SPI handle.
  372.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  373.   * @param  __INTERRUPT__: specifies the SPI interrupt source to check.
  374.   *          This parameter can be one of the following values:
  375.   *             @arg SPI_IT_TXE: Tx buffer empty interrupt enable
  376.   *             @arg SPI_IT_RXNE: RX buffer not empty interrupt enable
  377.   *             @arg SPI_IT_ERR: Error interrupt enable
  378.   * @retval The new state of __IT__ (TRUE or FALSE).
  379.   */
  380. #define __HAL_SPI_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
  381.  
  382. /** @brief  Check whether the specified SPI flag is set or not.
  383.   * @param  __HANDLE__: specifies the SPI handle.
  384.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  385.   * @param  __FLAG__: specifies the flag to check.
  386.   *         This parameter can be one of the following values:
  387.   *            @arg SPI_FLAG_RXNE: Receive buffer not empty flag
  388.   *            @arg SPI_FLAG_TXE: Transmit buffer empty flag
  389.   *            @arg SPI_FLAG_CRCERR: CRC error flag
  390.   *            @arg SPI_FLAG_MODF: Mode fault flag
  391.   *            @arg SPI_FLAG_OVR: Overrun flag
  392.   *            @arg SPI_FLAG_BSY: Busy flag
  393.   *            @arg SPI_FLAG_FRE: Frame format error flag  
  394.   * @retval The new state of __FLAG__ (TRUE or FALSE).
  395.   */
  396. #define __HAL_SPI_GET_FLAG(__HANDLE__, __FLAG__) ((((__HANDLE__)->Instance->SR) & (__FLAG__)) == (__FLAG__))
  397.  
  398. /** @brief  Clear the SPI CRCERR pending flag.
  399.   * @param  __HANDLE__: specifies the SPI handle.
  400.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  401.   * @retval None
  402.   */
  403. #define __HAL_SPI_CLEAR_CRCERRFLAG(__HANDLE__) ((__HANDLE__)->Instance->SR = ~(SPI_FLAG_CRCERR))
  404.  
  405. /** @brief  Clear the SPI MODF pending flag.
  406.   * @param  __HANDLE__: specifies the SPI handle.
  407.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  408.   * @retval None
  409.   */
  410. #define __HAL_SPI_CLEAR_MODFFLAG(__HANDLE__)                      \
  411.   do{                                                             \
  412.     __IO uint32_t tmpreg_modf;                                         \
  413.     tmpreg_modf = (__HANDLE__)->Instance->SR;                          \
  414.     CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE);          \
  415.     UNUSED(tmpreg_modf);                                               \
  416.   }while(0)
  417.  
  418. /** @brief  Clear the SPI OVR pending flag.
  419.   * @param  __HANDLE__: specifies the SPI handle.
  420.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  421.   * @retval None
  422.   */
  423. #define __HAL_SPI_CLEAR_OVRFLAG(__HANDLE__)                \
  424.   do{                                                      \
  425.     __IO uint32_t tmpreg_ovr;                                  \
  426.     tmpreg_ovr = (__HANDLE__)->Instance->DR;                   \
  427.     tmpreg_ovr = (__HANDLE__)->Instance->SR;                   \
  428.     UNUSED(tmpreg_ovr);                                        \
  429.   }while(0)  
  430.  
  431. /** @brief  Clear the SPI FRE pending flag.
  432.   * @param  __HANDLE__: specifies the SPI handle.
  433.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  434.   * @retval None
  435.   */
  436. #define __HAL_SPI_CLEAR_FREFLAG(__HANDLE__)                \
  437.   do{                                                      \
  438.     __IO uint32_t tmpreg_fre;                                  \
  439.     tmpreg_fre = (__HANDLE__)->Instance->SR;                   \
  440.     UNUSED(tmpreg_fre);                                        \
  441.   }while(0)  
  442.  
  443. /** @brief  Enables the SPI.
  444.   * @param  __HANDLE__: specifies the SPI Handle.
  445.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  446.   * @retval None
  447.   */                                                
  448. #define __HAL_SPI_ENABLE(__HANDLE__)  SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE)
  449.                                                  
  450. /** @brief  Disables the SPI.
  451.   * @param  __HANDLE__: specifies the SPI Handle.
  452.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  453.   * @retval None
  454.   */                                          
  455. #define __HAL_SPI_DISABLE(__HANDLE__) CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_SPE)
  456. /**
  457.   * @}
  458.   */
  459.  
  460.  
  461. /* Private macro ------------------------------------------------------------*/
  462. /** @defgroup SPI_Private_Macros SPI Private Macros
  463.   * @{
  464.   */
  465.  
  466. /** @brief  Sets the SPI transmit-only mode.
  467.   * @param  __HANDLE__: specifies the SPI Handle.
  468.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  469.   * @retval None
  470.   */
  471. #define SPI_1LINE_TX(__HANDLE__)  SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIOE)
  472.  
  473. /** @brief  Sets the SPI receive-only mode.
  474.   * @param  __HANDLE__: specifies the SPI Handle.
  475.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  476.   * @retval None
  477.   */              
  478. #define SPI_1LINE_RX(__HANDLE__)  CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_BIDIOE)
  479.  
  480. /** @brief  Resets the CRC calculation of the SPI.
  481.   * @param  __HANDLE__: specifies the SPI Handle.
  482.   *         This parameter can be SPI where x: 1, 2, or 3 to select the SPI peripheral.
  483.   * @retval None
  484.   */
  485. #define SPI_RESET_CRC(__HANDLE__) do{CLEAR_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_CRCEN);\
  486.                                              SET_BIT((__HANDLE__)->Instance->CR1, SPI_CR1_CRCEN);}while(0)
  487. /**
  488.   * @}
  489.   */
  490.  
  491. /* Include SPI HAL Extension module */
  492. #include "stm32l1xx_hal_spi_ex.h"
  493.  
  494. /* Exported functions --------------------------------------------------------*/
  495. /** @addtogroup SPI_Exported_Functions
  496.   * @{
  497.   */
  498.  
  499. /* Initialization/de-initialization functions  **********************************/
  500. /** @addtogroup SPI_Exported_Functions_Group1
  501.   * @{
  502.   */
  503. HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi);
  504. HAL_StatusTypeDef HAL_SPI_DeInit (SPI_HandleTypeDef *hspi);
  505. void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi);
  506. void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi);
  507. /**
  508.   * @}
  509.   */
  510.  
  511. /* I/O operation functions  *****************************************************/
  512. /** @addtogroup SPI_Exported_Functions_Group2
  513.   * @{
  514.   */
  515. HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);
  516. HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout);
  517. HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout);
  518. HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
  519. HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
  520. HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
  521. HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
  522. HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size);
  523. HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size);
  524. HAL_StatusTypeDef HAL_SPI_DMAPause(SPI_HandleTypeDef *hspi);
  525. HAL_StatusTypeDef HAL_SPI_DMAResume(SPI_HandleTypeDef *hspi);
  526. HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi);
  527.  
  528. void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi);
  529. void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi);
  530. void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi);
  531. void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi);
  532. void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi);
  533. void HAL_SPI_TxHalfCpltCallback(SPI_HandleTypeDef *hspi);
  534. void HAL_SPI_RxHalfCpltCallback(SPI_HandleTypeDef *hspi);
  535. void HAL_SPI_TxRxHalfCpltCallback(SPI_HandleTypeDef *hspi);
  536. /**
  537.   * @}
  538.   */
  539.  
  540.  
  541. /* Peripheral State and Control functions  **************************************/
  542. /** @addtogroup SPI_Exported_Functions_Group3
  543.   * @{
  544.   */
  545. HAL_SPI_StateTypeDef HAL_SPI_GetState(SPI_HandleTypeDef *hspi);
  546. uint32_t             HAL_SPI_GetError(SPI_HandleTypeDef *hspi);
  547.  
  548. /**
  549.   * @}
  550.   */
  551.  
  552. /**
  553.   * @}
  554.   */
  555.  
  556.  
  557. /**
  558.   * @}
  559.   */
  560.  
  561. /**
  562.   * @}
  563.   */
  564.  
  565. #ifdef __cplusplus
  566. }
  567. #endif
  568.  
  569. #endif /* __STM32L1xx_HAL_SPI_H */
  570.  
  571. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  572.