/** | |
****************************************************************************** | |
* @file stm32l0xx_ll_spi.h | |
* @author MCD Application Team | |
* @brief Header file of SPI LL module. | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 2016 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. | |
* | |
****************************************************************************** | |
*/ | |
/* Define to prevent recursive inclusion -------------------------------------*/ | |
#ifndef __STM32L0xx_LL_SPI_H | |
#define __STM32L0xx_LL_SPI_H | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
/* Includes ------------------------------------------------------------------*/ | |
#include "stm32l0xx.h" | |
/** @addtogroup STM32L0xx_LL_Driver | |
* @{ | |
*/ | |
#if defined (SPI1) || defined (SPI2) | |
/** @defgroup SPI_LL SPI | |
* @{ | |
*/ | |
/* Private types -------------------------------------------------------------*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private macros ------------------------------------------------------------*/ | |
/* Exported types ------------------------------------------------------------*/ | |
#if defined(USE_FULL_LL_DRIVER) | |
/** @defgroup SPI_LL_ES_INIT SPI Exported Init structure | |
* @{ | |
*/ | |
/** | |
* @brief SPI Init structures definition | |
*/ | |
typedef struct | |
{ | |
uint32_t TransferDirection; /*!< Specifies the SPI unidirectional or bidirectional data mode. | |
This parameter can be a value of @ref SPI_LL_EC_TRANSFER_MODE. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetTransferDirection().*/ | |
uint32_t Mode; /*!< Specifies the SPI mode (Master/Slave). | |
This parameter can be a value of @ref SPI_LL_EC_MODE. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetMode().*/ | |
uint32_t DataWidth; /*!< Specifies the SPI data width. | |
This parameter can be a value of @ref SPI_LL_EC_DATAWIDTH. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetDataWidth().*/ | |
uint32_t ClockPolarity; /*!< Specifies the serial clock steady state. | |
This parameter can be a value of @ref SPI_LL_EC_POLARITY. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetClockPolarity().*/ | |
uint32_t ClockPhase; /*!< Specifies the clock active edge for the bit capture. | |
This parameter can be a value of @ref SPI_LL_EC_PHASE. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetClockPhase().*/ | |
uint32_t NSS; /*!< Specifies whether the NSS signal is managed by hardware (NSS pin) or by software using the SSI bit. | |
This parameter can be a value of @ref SPI_LL_EC_NSS_MODE. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetNSSMode().*/ | |
uint32_t BaudRate; /*!< Specifies the BaudRate prescaler value which will be used to configure the transmit and receive SCK clock. | |
This parameter can be a value of @ref SPI_LL_EC_BAUDRATEPRESCALER. | |
@note The communication clock is derived from the master clock. The slave clock does not need to be set. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetBaudRatePrescaler().*/ | |
uint32_t BitOrder; /*!< Specifies whether data transfers start from MSB or LSB bit. | |
This parameter can be a value of @ref SPI_LL_EC_BIT_ORDER. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetTransferBitOrder().*/ | |
uint32_t CRCCalculation; /*!< Specifies if the CRC calculation is enabled or not. | |
This parameter can be a value of @ref SPI_LL_EC_CRC_CALCULATION. | |
This feature can be modified afterwards using unitary functions @ref LL_SPI_EnableCRC() and @ref LL_SPI_DisableCRC().*/ | |
uint32_t CRCPoly; /*!< Specifies the polynomial used for the CRC calculation. | |
This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF. | |
This feature can be modified afterwards using unitary function @ref LL_SPI_SetCRCPolynomial().*/ | |
} LL_SPI_InitTypeDef; | |
/** | |
* @} | |
*/ | |
#endif /* USE_FULL_LL_DRIVER */ | |
/* Exported constants --------------------------------------------------------*/ | |
/** @defgroup SPI_LL_Exported_Constants SPI Exported Constants | |
* @{ | |
*/ | |
/** @defgroup SPI_LL_EC_GET_FLAG Get Flags Defines | |
* @brief Flags defines which can be used with LL_SPI_ReadReg function | |
* @{ | |
*/ | |
#define LL_SPI_SR_RXNE SPI_SR_RXNE /*!< Rx buffer not empty flag */ | |
#define LL_SPI_SR_TXE SPI_SR_TXE /*!< Tx buffer empty flag */ | |
#define LL_SPI_SR_BSY SPI_SR_BSY /*!< Busy flag */ | |
#define LL_SPI_SR_UDR SPI_SR_UDR /*!< Underrun flag */ | |
#define LL_SPI_SR_CRCERR SPI_SR_CRCERR /*!< CRC error flag */ | |
#define LL_SPI_SR_MODF SPI_SR_MODF /*!< Mode fault flag */ | |
#define LL_SPI_SR_OVR SPI_SR_OVR /*!< Overrun flag */ | |
#define LL_SPI_SR_FRE SPI_SR_FRE /*!< TI mode frame format error flag */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_IT IT Defines | |
* @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions | |
* @{ | |
*/ | |
#define LL_SPI_CR2_RXNEIE SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */ | |
#define LL_SPI_CR2_TXEIE SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */ | |
#define LL_SPI_CR2_ERRIE SPI_CR2_ERRIE /*!< Error interrupt enable */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_MODE Operation Mode | |
* @{ | |
*/ | |
#define LL_SPI_MODE_MASTER (SPI_CR1_MSTR | SPI_CR1_SSI) /*!< Master configuration */ | |
#define LL_SPI_MODE_SLAVE ((uint32_t)0x00000000U) /*!< Slave configuration */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_PROTOCOL Serial Protocol | |
* @{ | |
*/ | |
#define LL_SPI_PROTOCOL_MOTOROLA ((uint32_t)0x00000000U) /*!< Motorola mode. Used as default value */ | |
#define LL_SPI_PROTOCOL_TI (SPI_CR2_FRF) /*!< TI mode */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_PHASE Clock Phase | |
* @{ | |
*/ | |
#define LL_SPI_PHASE_1EDGE ((uint32_t)0x00000000U) /*!< First clock transition is the first data capture edge */ | |
#define LL_SPI_PHASE_2EDGE (SPI_CR1_CPHA) /*!< Second clock transition is the first data capture edge */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_POLARITY Clock Polarity | |
* @{ | |
*/ | |
#define LL_SPI_POLARITY_LOW ((uint32_t)0x00000000U) /*!< Clock to 0 when idle */ | |
#define LL_SPI_POLARITY_HIGH (SPI_CR1_CPOL) /*!< Clock to 1 when idle */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_BAUDRATEPRESCALER Baud Rate Prescaler | |
* @{ | |
*/ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV2 ((uint32_t)0x00000000U) /*!< BaudRate control equal to fPCLK/2 */ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV4 (SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/4 */ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV8 (SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/8 */ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV16 (SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/16 */ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV32 (SPI_CR1_BR_2) /*!< BaudRate control equal to fPCLK/32 */ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV64 (SPI_CR1_BR_2 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/64 */ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV128 (SPI_CR1_BR_2 | SPI_CR1_BR_1) /*!< BaudRate control equal to fPCLK/128 */ | |
#define LL_SPI_BAUDRATEPRESCALER_DIV256 (SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0) /*!< BaudRate control equal to fPCLK/256 */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_BIT_ORDER Transmission Bit Order | |
* @{ | |
*/ | |
#define LL_SPI_LSB_FIRST (SPI_CR1_LSBFIRST) /*!< Data is transmitted/received with the LSB first */ | |
#define LL_SPI_MSB_FIRST ((uint32_t)0x00000000U) /*!< Data is transmitted/received with the MSB first */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_TRANSFER_MODE Transfer Mode | |
* @{ | |
*/ | |
#define LL_SPI_FULL_DUPLEX ((uint32_t)0x00000000U) /*!< Full-Duplex mode. Rx and Tx transfer on 2 lines */ | |
#define LL_SPI_SIMPLEX_RX (SPI_CR1_RXONLY) /*!< Simplex Rx mode. Rx transfer only on 1 line */ | |
#define LL_SPI_HALF_DUPLEX_RX (SPI_CR1_BIDIMODE) /*!< Half-Duplex Rx mode. Rx transfer on 1 line */ | |
#define LL_SPI_HALF_DUPLEX_TX (SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE) /*!< Half-Duplex Tx mode. Tx transfer on 1 line */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_NSS_MODE Slave Select Pin Mode | |
* @{ | |
*/ | |
#define LL_SPI_NSS_SOFT (SPI_CR1_SSM) /*!< NSS managed internally. NSS pin not used and free */ | |
#define LL_SPI_NSS_HARD_INPUT ((uint32_t)0x00000000U) /*!< NSS pin used in Input. Only used in Master mode */ | |
#define LL_SPI_NSS_HARD_OUTPUT (((uint32_t)SPI_CR2_SSOE << 16U)) /*!< NSS pin used in Output. Only used in Slave mode as chip select */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_DATAWIDTH Datawidth | |
* @{ | |
*/ | |
#define LL_SPI_DATAWIDTH_8BIT ((uint32_t)0x00000000U) /*!< Data length for SPI transfer: 8 bits */ | |
#define LL_SPI_DATAWIDTH_16BIT (SPI_CR1_DFF) /*!< Data length for SPI transfer: 16 bits */ | |
/** | |
* @} | |
*/ | |
#if defined(USE_FULL_LL_DRIVER) | |
/** @defgroup SPI_LL_EC_CRC_CALCULATION CRC Calculation | |
* @{ | |
*/ | |
#define LL_SPI_CRCCALCULATION_DISABLE ((uint32_t)0x00000000U) /*!< CRC calculation disabled */ | |
#define LL_SPI_CRCCALCULATION_ENABLE (SPI_CR1_CRCEN) /*!< CRC calculation enabled */ | |
/** | |
* @} | |
*/ | |
#endif /* USE_FULL_LL_DRIVER */ | |
/** | |
* @} | |
*/ | |
/* Exported macro ------------------------------------------------------------*/ | |
/** @defgroup SPI_LL_Exported_Macros SPI Exported Macros | |
* @{ | |
*/ | |
/** @defgroup SPI_LL_EM_WRITE_READ Common Write and read registers Macros | |
* @{ | |
*/ | |
/** | |
* @brief Write a value in SPI register | |
* @param __INSTANCE__ SPI Instance | |
* @param __REG__ Register to be written | |
* @param __VALUE__ Value to be written in the register | |
* @retval None | |
*/ | |
#define LL_SPI_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) | |
/** | |
* @brief Read a value in SPI register | |
* @param __INSTANCE__ SPI Instance | |
* @param __REG__ Register to be read | |
* @retval Register value | |
*/ | |
#define LL_SPI_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/* Exported functions --------------------------------------------------------*/ | |
/** @defgroup SPI_LL_Exported_Functions SPI Exported Functions | |
* @{ | |
*/ | |
/** @defgroup SPI_LL_EF_Configuration Configuration | |
* @{ | |
*/ | |
/** | |
* @brief Enable SPI peripheral | |
* @rmtoll CR1 SPE LL_SPI_Enable | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_Enable(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR1, SPI_CR1_SPE); | |
} | |
/** | |
* @brief Disable SPI peripheral | |
* @note When disabling the SPI, follow the procedure described in the Reference Manual. | |
* @rmtoll CR1 SPE LL_SPI_Disable | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_Disable(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE); | |
} | |
/** | |
* @brief Check if SPI peripheral is enabled | |
* @rmtoll CR1 SPE LL_SPI_IsEnabled | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsEnabled(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->CR1, SPI_CR1_SPE) == (SPI_CR1_SPE)); | |
} | |
/** | |
* @brief Set SPI operation mode to Master or Slave | |
* @note This bit should not be changed when communication is ongoing. | |
* @rmtoll CR1 MSTR LL_SPI_SetMode\n | |
* CR1 SSI LL_SPI_SetMode | |
* @param SPIx SPI Instance | |
* @param Mode This parameter can be one of the following values: | |
* @arg @ref LL_SPI_MODE_MASTER | |
* @arg @ref LL_SPI_MODE_SLAVE | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetMode(SPI_TypeDef *SPIx, uint32_t Mode) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI, Mode); | |
} | |
/** | |
* @brief Get SPI operation mode (Master or Slave) | |
* @rmtoll CR1 MSTR LL_SPI_GetMode\n | |
* CR1 SSI LL_SPI_GetMode | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_MODE_MASTER | |
* @arg @ref LL_SPI_MODE_SLAVE | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetMode(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_MSTR | SPI_CR1_SSI)); | |
} | |
/** | |
* @brief Set serial protocol used | |
* @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. | |
* @rmtoll CR2 FRF LL_SPI_SetStandard | |
* @param SPIx SPI Instance | |
* @param Standard This parameter can be one of the following values: | |
* @arg @ref LL_SPI_PROTOCOL_MOTOROLA | |
* @arg @ref LL_SPI_PROTOCOL_TI | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard) | |
{ | |
MODIFY_REG(SPIx->CR2, SPI_CR2_FRF, Standard); | |
} | |
/** | |
* @brief Get serial protocol used | |
* @rmtoll CR2 FRF LL_SPI_GetStandard | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_PROTOCOL_MOTOROLA | |
* @arg @ref LL_SPI_PROTOCOL_TI | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetStandard(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR2, SPI_CR2_FRF)); | |
} | |
/** | |
* @brief Set clock phase | |
* @note This bit should not be changed when communication is ongoing. | |
* This bit is not used in SPI TI mode. | |
* @rmtoll CR1 CPHA LL_SPI_SetClockPhase | |
* @param SPIx SPI Instance | |
* @param ClockPhase This parameter can be one of the following values: | |
* @arg @ref LL_SPI_PHASE_1EDGE | |
* @arg @ref LL_SPI_PHASE_2EDGE | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetClockPhase(SPI_TypeDef *SPIx, uint32_t ClockPhase) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_CPHA, ClockPhase); | |
} | |
/** | |
* @brief Get clock phase | |
* @rmtoll CR1 CPHA LL_SPI_GetClockPhase | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_PHASE_1EDGE | |
* @arg @ref LL_SPI_PHASE_2EDGE | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetClockPhase(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPHA)); | |
} | |
/** | |
* @brief Set clock polarity | |
* @note This bit should not be changed when communication is ongoing. | |
* This bit is not used in SPI TI mode. | |
* @rmtoll CR1 CPOL LL_SPI_SetClockPolarity | |
* @param SPIx SPI Instance | |
* @param ClockPolarity This parameter can be one of the following values: | |
* @arg @ref LL_SPI_POLARITY_LOW | |
* @arg @ref LL_SPI_POLARITY_HIGH | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_CPOL, ClockPolarity); | |
} | |
/** | |
* @brief Get clock polarity | |
* @rmtoll CR1 CPOL LL_SPI_GetClockPolarity | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_POLARITY_LOW | |
* @arg @ref LL_SPI_POLARITY_HIGH | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetClockPolarity(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_CPOL)); | |
} | |
/** | |
* @brief Set baud rate prescaler | |
* @note These bits should not be changed when communication is ongoing. SPI BaudRate = fPCLK/Prescaler. | |
* @rmtoll CR1 BR LL_SPI_SetBaudRatePrescaler | |
* @param SPIx SPI Instance | |
* @param BaudRate This parameter can be one of the following values: | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256 | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetBaudRatePrescaler(SPI_TypeDef *SPIx, uint32_t BaudRate) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_BR, BaudRate); | |
} | |
/** | |
* @brief Get baud rate prescaler | |
* @rmtoll CR1 BR LL_SPI_GetBaudRatePrescaler | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV2 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV4 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV8 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV16 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV32 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV64 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV128 | |
* @arg @ref LL_SPI_BAUDRATEPRESCALER_DIV256 | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetBaudRatePrescaler(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_BR)); | |
} | |
/** | |
* @brief Set transfer bit order | |
* @note This bit should not be changed when communication is ongoing. This bit is not used in SPI TI mode. | |
* @rmtoll CR1 LSBFIRST LL_SPI_SetTransferBitOrder | |
* @param SPIx SPI Instance | |
* @param BitOrder This parameter can be one of the following values: | |
* @arg @ref LL_SPI_LSB_FIRST | |
* @arg @ref LL_SPI_MSB_FIRST | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetTransferBitOrder(SPI_TypeDef *SPIx, uint32_t BitOrder) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_LSBFIRST, BitOrder); | |
} | |
/** | |
* @brief Get transfer bit order | |
* @rmtoll CR1 LSBFIRST LL_SPI_GetTransferBitOrder | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_LSB_FIRST | |
* @arg @ref LL_SPI_MSB_FIRST | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetTransferBitOrder(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_LSBFIRST)); | |
} | |
/** | |
* @brief Set transfer direction mode | |
* @note For Half-Duplex mode, Rx Direction is set by default. | |
* In master mode, the MOSI pin is used and in slave mode, the MISO pin is used for Half-Duplex. | |
* @rmtoll CR1 RXONLY LL_SPI_SetTransferDirection\n | |
* CR1 BIDIMODE LL_SPI_SetTransferDirection\n | |
* CR1 BIDIOE LL_SPI_SetTransferDirection | |
* @param SPIx SPI Instance | |
* @param TransferDirection This parameter can be one of the following values: | |
* @arg @ref LL_SPI_FULL_DUPLEX | |
* @arg @ref LL_SPI_SIMPLEX_RX | |
* @arg @ref LL_SPI_HALF_DUPLEX_RX | |
* @arg @ref LL_SPI_HALF_DUPLEX_TX | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetTransferDirection(SPI_TypeDef *SPIx, uint32_t TransferDirection) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE, TransferDirection); | |
} | |
/** | |
* @brief Get transfer direction mode | |
* @rmtoll CR1 RXONLY LL_SPI_GetTransferDirection\n | |
* CR1 BIDIMODE LL_SPI_GetTransferDirection\n | |
* CR1 BIDIOE LL_SPI_GetTransferDirection | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_FULL_DUPLEX | |
* @arg @ref LL_SPI_SIMPLEX_RX | |
* @arg @ref LL_SPI_HALF_DUPLEX_RX | |
* @arg @ref LL_SPI_HALF_DUPLEX_TX | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetTransferDirection(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_RXONLY | SPI_CR1_BIDIMODE | SPI_CR1_BIDIOE)); | |
} | |
/** | |
* @brief Set frame data width | |
* @rmtoll CR1 DFF LL_SPI_SetDataWidth | |
* @param SPIx SPI Instance | |
* @param DataWidth This parameter can be one of the following values: | |
* @arg @ref LL_SPI_DATAWIDTH_8BIT | |
* @arg @ref LL_SPI_DATAWIDTH_16BIT | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetDataWidth(SPI_TypeDef *SPIx, uint32_t DataWidth) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_DFF, DataWidth); | |
} | |
/** | |
* @brief Get frame data width | |
* @rmtoll CR1 DFF LL_SPI_GetDataWidth | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_DATAWIDTH_8BIT | |
* @arg @ref LL_SPI_DATAWIDTH_16BIT | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetDataWidth(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->CR1, SPI_CR1_DFF)); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EF_CRC_Management CRC Management | |
* @{ | |
*/ | |
/** | |
* @brief Enable CRC | |
* @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. | |
* @rmtoll CR1 CRCEN LL_SPI_EnableCRC | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_EnableCRC(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR1, SPI_CR1_CRCEN); | |
} | |
/** | |
* @brief Disable CRC | |
* @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. | |
* @rmtoll CR1 CRCEN LL_SPI_DisableCRC | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_DisableCRC(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->CR1, SPI_CR1_CRCEN); | |
} | |
/** | |
* @brief Check if CRC is enabled | |
* @note This bit should be written only when SPI is disabled (SPE = 0) for correct operation. | |
* @rmtoll CR1 CRCEN LL_SPI_IsEnabledCRC | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsEnabledCRC(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->CR1, SPI_CR1_CRCEN) == (SPI_CR1_CRCEN)); | |
} | |
/** | |
* @brief Set CRCNext to transfer CRC on the line | |
* @note This bit has to be written as soon as the last data is written in the SPIx_DR register. | |
* @rmtoll CR1 CRCNEXT LL_SPI_SetCRCNext | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetCRCNext(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR1, SPI_CR1_CRCNEXT); | |
} | |
/** | |
* @brief Set polynomial for CRC calculation | |
* @rmtoll CRCPR CRCPOLY LL_SPI_SetCRCPolynomial | |
* @param SPIx SPI Instance | |
* @param CRCPoly This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFFFF | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetCRCPolynomial(SPI_TypeDef *SPIx, uint32_t CRCPoly) | |
{ | |
WRITE_REG(SPIx->CRCPR, (uint16_t)CRCPoly); | |
} | |
/** | |
* @brief Get polynomial for CRC calculation | |
* @rmtoll CRCPR CRCPOLY LL_SPI_GetCRCPolynomial | |
* @param SPIx SPI Instance | |
* @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetCRCPolynomial(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_REG(SPIx->CRCPR)); | |
} | |
/** | |
* @brief Get Rx CRC | |
* @rmtoll RXCRCR RXCRC LL_SPI_GetRxCRC | |
* @param SPIx SPI Instance | |
* @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetRxCRC(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_REG(SPIx->RXCRCR)); | |
} | |
/** | |
* @brief Get Tx CRC | |
* @rmtoll TXCRCR TXCRC LL_SPI_GetTxCRC | |
* @param SPIx SPI Instance | |
* @retval Returned value is a number between Min_Data = 0x00 and Max_Data = 0xFFFF | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetTxCRC(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_REG(SPIx->TXCRCR)); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EF_NSS_Management Slave Select Pin Management | |
* @{ | |
*/ | |
/** | |
* @brief Set NSS mode | |
* @note LL_SPI_NSS_SOFT Mode is not used in SPI TI mode. | |
* @rmtoll CR1 SSM LL_SPI_SetNSSMode\n | |
* @rmtoll CR2 SSOE LL_SPI_SetNSSMode | |
* @param SPIx SPI Instance | |
* @param NSS This parameter can be one of the following values: | |
* @arg @ref LL_SPI_NSS_SOFT | |
* @arg @ref LL_SPI_NSS_HARD_INPUT | |
* @arg @ref LL_SPI_NSS_HARD_OUTPUT | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_SetNSSMode(SPI_TypeDef *SPIx, uint32_t NSS) | |
{ | |
MODIFY_REG(SPIx->CR1, SPI_CR1_SSM, NSS); | |
MODIFY_REG(SPIx->CR2, SPI_CR2_SSOE, ((uint32_t)(NSS >> 16U))); | |
} | |
/** | |
* @brief Get NSS mode | |
* @rmtoll CR1 SSM LL_SPI_GetNSSMode\n | |
* @rmtoll CR2 SSOE LL_SPI_GetNSSMode | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_SPI_NSS_SOFT | |
* @arg @ref LL_SPI_NSS_HARD_INPUT | |
* @arg @ref LL_SPI_NSS_HARD_OUTPUT | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_GetNSSMode(SPI_TypeDef *SPIx) | |
{ | |
register uint32_t Ssm = (READ_BIT(SPIx->CR1, SPI_CR1_SSM)); | |
register uint32_t Ssoe = (READ_BIT(SPIx->CR2, SPI_CR2_SSOE) << 16U); | |
return (Ssm | Ssoe); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EF_FLAG_Management FLAG Management | |
* @{ | |
*/ | |
/** | |
* @brief Check if Rx buffer is not empty | |
* @rmtoll SR RXNE LL_SPI_IsActiveFlag_RXNE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_RXNE(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_RXNE) == (SPI_SR_RXNE)); | |
} | |
/** | |
* @brief Check if Tx buffer is empty | |
* @rmtoll SR TXE LL_SPI_IsActiveFlag_TXE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_TXE(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_TXE) == (SPI_SR_TXE)); | |
} | |
/** | |
* @brief Get CRC error flag | |
* @rmtoll SR CRCERR LL_SPI_IsActiveFlag_CRCERR | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_CRCERR(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_CRCERR) == (SPI_SR_CRCERR)); | |
} | |
/** | |
* @brief Get mode fault error flag | |
* @rmtoll SR MODF LL_SPI_IsActiveFlag_MODF | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_MODF(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_MODF) == (SPI_SR_MODF)); | |
} | |
/** | |
* @brief Get overrun error flag | |
* @rmtoll SR OVR LL_SPI_IsActiveFlag_OVR | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_OVR(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_OVR) == (SPI_SR_OVR)); | |
} | |
/** | |
* @brief Get busy flag | |
* @note The BSY flag is cleared under any one of the following conditions: | |
* -When the SPI is correctly disabled | |
* -When a fault is detected in Master mode (MODF bit set to 1) | |
* -In Master mode, when it finishes a data transmission and no new data is ready to be | |
* sent | |
* -In Slave mode, when the BSY flag is set to '0' for at least one SPI clock cycle between | |
* each data transfer. | |
* @rmtoll SR BSY LL_SPI_IsActiveFlag_BSY | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_BSY(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_BSY) == (SPI_SR_BSY)); | |
} | |
/** | |
* @brief Get frame format error flag | |
* @rmtoll SR FRE LL_SPI_IsActiveFlag_FRE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsActiveFlag_FRE(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_FRE) == (SPI_SR_FRE)); | |
} | |
/** | |
* @brief Clear CRC error flag | |
* @rmtoll SR CRCERR LL_SPI_ClearFlag_CRCERR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_ClearFlag_CRCERR(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->SR, SPI_SR_CRCERR); | |
} | |
/** | |
* @brief Clear mode fault error flag | |
* @note Clearing this flag is done by a read access to the SPIx_SR | |
* register followed by a write access to the SPIx_CR1 register | |
* @rmtoll SR MODF LL_SPI_ClearFlag_MODF | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_ClearFlag_MODF(SPI_TypeDef *SPIx) | |
{ | |
__IO uint32_t tmpreg; | |
tmpreg = SPIx->SR; | |
(void) tmpreg; | |
tmpreg = CLEAR_BIT(SPIx->CR1, SPI_CR1_SPE); | |
(void) tmpreg; | |
} | |
/** | |
* @brief Clear overrun error flag | |
* @note Clearing this flag is done by a read access to the SPIx_DR | |
* register followed by a read access to the SPIx_SR register | |
* @rmtoll SR OVR LL_SPI_ClearFlag_OVR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_ClearFlag_OVR(SPI_TypeDef *SPIx) | |
{ | |
__IO uint32_t tmpreg; | |
tmpreg = SPIx->DR; | |
(void) tmpreg; | |
tmpreg = SPIx->SR; | |
(void) tmpreg; | |
} | |
/** | |
* @brief Clear frame format error flag | |
* @note Clearing this flag is done by reading SPIx_SR register | |
* @rmtoll SR FRE LL_SPI_ClearFlag_FRE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_ClearFlag_FRE(SPI_TypeDef *SPIx) | |
{ | |
__IO uint32_t tmpreg; | |
tmpreg = SPIx->SR; | |
(void) tmpreg; | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EF_IT_Management Interrupt Management | |
* @{ | |
*/ | |
/** | |
* @brief Enable error interrupt | |
* @note This bit controls the generation of an interrupt when an error condition occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode). | |
* @rmtoll CR2 ERRIE LL_SPI_EnableIT_ERR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_EnableIT_ERR(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR2, SPI_CR2_ERRIE); | |
} | |
/** | |
* @brief Enable Rx buffer not empty interrupt | |
* @rmtoll CR2 RXNEIE LL_SPI_EnableIT_RXNE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_EnableIT_RXNE(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR2, SPI_CR2_RXNEIE); | |
} | |
/** | |
* @brief Enable Tx buffer empty interrupt | |
* @rmtoll CR2 TXEIE LL_SPI_EnableIT_TXE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_EnableIT_TXE(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR2, SPI_CR2_TXEIE); | |
} | |
/** | |
* @brief Disable error interrupt | |
* @note This bit controls the generation of an interrupt when an error condition occurs (CRCERR, OVR, MODF in SPI mode, FRE at TI mode). | |
* @rmtoll CR2 ERRIE LL_SPI_DisableIT_ERR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_DisableIT_ERR(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->CR2, SPI_CR2_ERRIE); | |
} | |
/** | |
* @brief Disable Rx buffer not empty interrupt | |
* @rmtoll CR2 RXNEIE LL_SPI_DisableIT_RXNE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_DisableIT_RXNE(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->CR2, SPI_CR2_RXNEIE); | |
} | |
/** | |
* @brief Disable Tx buffer empty interrupt | |
* @rmtoll CR2 TXEIE LL_SPI_DisableIT_TXE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_DisableIT_TXE(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->CR2, SPI_CR2_TXEIE); | |
} | |
/** | |
* @brief Check if error interrupt is enabled | |
* @rmtoll CR2 ERRIE LL_SPI_IsEnabledIT_ERR | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_ERR(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->CR2, SPI_CR2_ERRIE) == (SPI_CR2_ERRIE)); | |
} | |
/** | |
* @brief Check if Rx buffer not empty interrupt is enabled | |
* @rmtoll CR2 RXNEIE LL_SPI_IsEnabledIT_RXNE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_RXNE(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->CR2, SPI_CR2_RXNEIE) == (SPI_CR2_RXNEIE)); | |
} | |
/** | |
* @brief Check if Tx buffer empty interrupt | |
* @rmtoll CR2 TXEIE LL_SPI_IsEnabledIT_TXE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsEnabledIT_TXE(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->CR2, SPI_CR2_TXEIE) == (SPI_CR2_TXEIE)); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EF_DMA_Management DMA Management | |
* @{ | |
*/ | |
/** | |
* @brief Enable DMA Rx | |
* @rmtoll CR2 RXDMAEN LL_SPI_EnableDMAReq_RX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_EnableDMAReq_RX(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR2, SPI_CR2_RXDMAEN); | |
} | |
/** | |
* @brief Disable DMA Rx | |
* @rmtoll CR2 RXDMAEN LL_SPI_DisableDMAReq_RX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_DisableDMAReq_RX(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->CR2, SPI_CR2_RXDMAEN); | |
} | |
/** | |
* @brief Check if DMA Rx is enabled | |
* @rmtoll CR2 RXDMAEN LL_SPI_IsEnabledDMAReq_RX | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_RX(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->CR2, SPI_CR2_RXDMAEN) == (SPI_CR2_RXDMAEN)); | |
} | |
/** | |
* @brief Enable DMA Tx | |
* @rmtoll CR2 TXDMAEN LL_SPI_EnableDMAReq_TX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_EnableDMAReq_TX(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->CR2, SPI_CR2_TXDMAEN); | |
} | |
/** | |
* @brief Disable DMA Tx | |
* @rmtoll CR2 TXDMAEN LL_SPI_DisableDMAReq_TX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_DisableDMAReq_TX(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->CR2, SPI_CR2_TXDMAEN); | |
} | |
/** | |
* @brief Check if DMA Tx is enabled | |
* @rmtoll CR2 TXDMAEN LL_SPI_IsEnabledDMAReq_TX | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_IsEnabledDMAReq_TX(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->CR2, SPI_CR2_TXDMAEN) == (SPI_CR2_TXDMAEN)); | |
} | |
/** | |
* @brief Get the data register address used for DMA transfer | |
* @rmtoll DR DR LL_SPI_DMA_GetRegAddr | |
* @param SPIx SPI Instance | |
* @retval Address of data register | |
*/ | |
__STATIC_INLINE uint32_t LL_SPI_DMA_GetRegAddr(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t) & (SPIx->DR); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EF_DATA_Management DATA Management | |
* @{ | |
*/ | |
/** | |
* @brief Read 8-Bits in the data register | |
* @rmtoll DR DR LL_SPI_ReceiveData8 | |
* @param SPIx SPI Instance | |
* @retval RxData Value between Min_Data=0x00 and Max_Data=0xFF | |
*/ | |
__STATIC_INLINE uint8_t LL_SPI_ReceiveData8(SPI_TypeDef *SPIx) | |
{ | |
return (uint8_t)(READ_REG(SPIx->DR)); | |
} | |
/** | |
* @brief Read 16-Bits in the data register | |
* @rmtoll DR DR LL_SPI_ReceiveData16 | |
* @param SPIx SPI Instance | |
* @retval RxData Value between Min_Data=0x00 and Max_Data=0xFFFF | |
*/ | |
__STATIC_INLINE uint16_t LL_SPI_ReceiveData16(SPI_TypeDef *SPIx) | |
{ | |
return (uint16_t)(READ_REG(SPIx->DR)); | |
} | |
/** | |
* @brief Write 8-Bits in the data register | |
* @rmtoll DR DR LL_SPI_TransmitData8 | |
* @param SPIx SPI Instance | |
* @param TxData Value between Min_Data=0x00 and Max_Data=0xFF | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_TransmitData8(SPI_TypeDef *SPIx, uint8_t TxData) | |
{ | |
*((__IO uint8_t *)&SPIx->DR) = TxData; | |
} | |
/** | |
* @brief Write 16-Bits in the data register | |
* @rmtoll DR DR LL_SPI_TransmitData16 | |
* @param SPIx SPI Instance | |
* @param TxData Value between Min_Data=0x00 and Max_Data=0xFFFF | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_SPI_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData) | |
{ | |
SPIx->DR = TxData; | |
} | |
/** | |
* @} | |
*/ | |
#if defined(USE_FULL_LL_DRIVER) | |
/** @defgroup SPI_LL_EF_Init Initialization and de-initialization functions | |
* @{ | |
*/ | |
ErrorStatus LL_SPI_DeInit(SPI_TypeDef *SPIx); | |
ErrorStatus LL_SPI_Init(SPI_TypeDef *SPIx, LL_SPI_InitTypeDef *SPI_InitStruct); | |
void LL_SPI_StructInit(LL_SPI_InitTypeDef *SPI_InitStruct); | |
/** | |
* @} | |
*/ | |
#endif /* USE_FULL_LL_DRIVER */ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
#if defined(SPI_I2S_SUPPORT) | |
/** @defgroup I2S_LL I2S | |
* @{ | |
*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private constants ---------------------------------------------------------*/ | |
/* Private macros ------------------------------------------------------------*/ | |
/* Exported types ------------------------------------------------------------*/ | |
#if defined(USE_FULL_LL_DRIVER) | |
/** @defgroup I2S_LL_ES_INIT I2S Exported Init structure | |
* @{ | |
*/ | |
/** | |
* @brief I2S Init structure definition | |
*/ | |
typedef struct | |
{ | |
uint32_t Mode; /*!< Specifies the I2S operating mode. | |
This parameter can be a value of @ref I2S_LL_EC_MODE | |
This feature can be modified afterwards using unitary function @ref LL_I2S_SetTransferMode().*/ | |
uint32_t Standard; /*!< Specifies the standard used for the I2S communication. | |
This parameter can be a value of @ref I2S_LL_EC_STANDARD | |
This feature can be modified afterwards using unitary function @ref LL_I2S_SetStandard().*/ | |
uint32_t DataFormat; /*!< Specifies the data format for the I2S communication. | |
This parameter can be a value of @ref I2S_LL_EC_DATA_FORMAT | |
This feature can be modified afterwards using unitary function @ref LL_I2S_SetDataFormat().*/ | |
uint32_t MCLKOutput; /*!< Specifies whether the I2S MCLK output is enabled or not. | |
This parameter can be a value of @ref I2S_LL_EC_MCLK_OUTPUT | |
This feature can be modified afterwards using unitary functions @ref LL_I2S_EnableMasterClock() or @ref LL_I2S_DisableMasterClock.*/ | |
uint32_t AudioFreq; /*!< Specifies the frequency selected for the I2S communication. | |
This parameter can be a value of @ref I2S_LL_EC_AUDIO_FREQ | |
Audio Frequency can be modified afterwards using Reference manual formulas to calculate Prescaler Linear, Parity | |
and unitary functions @ref LL_I2S_SetPrescalerLinear() and @ref LL_I2S_SetPrescalerParity() to set it.*/ | |
uint32_t ClockPolarity; /*!< Specifies the idle state of the I2S clock. | |
This parameter can be a value of @ref I2S_LL_EC_POLARITY | |
This feature can be modified afterwards using unitary function @ref LL_I2S_SetClockPolarity().*/ | |
} LL_I2S_InitTypeDef; | |
/** | |
* @} | |
*/ | |
#endif /*USE_FULL_LL_DRIVER*/ | |
/* Exported constants --------------------------------------------------------*/ | |
/** @defgroup I2S_LL_Exported_Constants I2S Exported Constants | |
* @{ | |
*/ | |
/** @defgroup I2S_LL_EC_GET_FLAG Get Flags Defines | |
* @brief Flags defines which can be used with LL_I2S_ReadReg function | |
* @{ | |
*/ | |
#define LL_I2S_SR_RXNE LL_SPI_SR_RXNE /*!< Rx buffer not empty flag */ | |
#define LL_I2S_SR_TXE LL_SPI_SR_TXE /*!< Tx buffer empty flag */ | |
#define LL_I2S_SR_BSY LL_SPI_SR_BSY /*!< Busy flag */ | |
#define LL_I2S_SR_UDR LL_SPI_SR_UDR /*!< Underrun flag */ | |
#define LL_I2S_SR_OVR LL_SPI_SR_OVR /*!< Overrun flag */ | |
#define LL_I2S_SR_FRE LL_SPI_SR_FRE /*!< TI mode frame format error flag */ | |
/** | |
* @} | |
*/ | |
/** @defgroup SPI_LL_EC_IT IT Defines | |
* @brief IT defines which can be used with LL_SPI_ReadReg and LL_SPI_WriteReg functions | |
* @{ | |
*/ | |
#define LL_I2S_CR2_RXNEIE LL_SPI_CR2_RXNEIE /*!< Rx buffer not empty interrupt enable */ | |
#define LL_I2S_CR2_TXEIE LL_SPI_CR2_TXEIE /*!< Tx buffer empty interrupt enable */ | |
#define LL_I2S_CR2_ERRIE LL_SPI_CR2_ERRIE /*!< Error interrupt enable */ | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EC_DATA_FORMAT Data format | |
* @{ | |
*/ | |
#define LL_I2S_DATAFORMAT_16B ((uint32_t)0x00000000U) /*!< Data length 16 bits, Channel lenght 16bit */ | |
#define LL_I2S_DATAFORMAT_16B_EXTENDED (SPI_I2SCFGR_CHLEN) /*!< Data length 16 bits, Channel lenght 32bit */ | |
#define LL_I2S_DATAFORMAT_24B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_0) /*!< Data length 24 bits, Channel lenght 32bit */ | |
#define LL_I2S_DATAFORMAT_32B (SPI_I2SCFGR_CHLEN | SPI_I2SCFGR_DATLEN_1) /*!< Data length 16 bits, Channel lenght 32bit */ | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EC_POLARITY Clock Polarity | |
* @{ | |
*/ | |
#define LL_I2S_POLARITY_LOW ((uint32_t)0x00000000U) /*!< Clock steady state is low level */ | |
#define LL_I2S_POLARITY_HIGH (SPI_I2SCFGR_CKPOL) /*!< Clock steady state is high level */ | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EC_STANDARD I2s Standard | |
* @{ | |
*/ | |
#define LL_I2S_STANDARD_PHILIPS ((uint32_t)0x00000000U) /*!< I2S standard philips */ | |
#define LL_I2S_STANDARD_MSB (SPI_I2SCFGR_I2SSTD_0) /*!< MSB justified standard (left justified) */ | |
#define LL_I2S_STANDARD_LSB (SPI_I2SCFGR_I2SSTD_1) /*!< LSB justified standard (right justified) */ | |
#define LL_I2S_STANDARD_PCM_SHORT (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1) /*!< PCM standard, short frame synchronization */ | |
#define LL_I2S_STANDARD_PCM_LONG (SPI_I2SCFGR_I2SSTD_0 | SPI_I2SCFGR_I2SSTD_1 | SPI_I2SCFGR_PCMSYNC) /*!< PCM standard, long frame synchronization */ | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EC_MODE Operation Mode | |
* @{ | |
*/ | |
#define LL_I2S_MODE_SLAVE_TX ((uint32_t)0x00000000U) /*!< Slave Tx configuration */ | |
#define LL_I2S_MODE_SLAVE_RX (SPI_I2SCFGR_I2SCFG_0) /*!< Slave Rx configuration */ | |
#define LL_I2S_MODE_MASTER_TX (SPI_I2SCFGR_I2SCFG_1) /*!< Master Tx configuration */ | |
#define LL_I2S_MODE_MASTER_RX (SPI_I2SCFGR_I2SCFG_0 | SPI_I2SCFGR_I2SCFG_1) /*!< Master Rx configuration */ | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EC_PRESCALER_FACTOR Prescaler Factor | |
* @{ | |
*/ | |
#define LL_I2S_PRESCALER_PARITY_EVEN ((uint32_t)0x00000000U) /*!< Odd factor: Real divider value is = I2SDIV * 2 */ | |
#define LL_I2S_PRESCALER_PARITY_ODD (SPI_I2SPR_ODD >> 8U) /*!< Odd factor: Real divider value is = (I2SDIV * 2)+1 */ | |
/** | |
* @} | |
*/ | |
#if defined(USE_FULL_LL_DRIVER) | |
/** @defgroup I2S_LL_EC_MCLK_OUTPUT MCLK Output | |
* @{ | |
*/ | |
#define LL_I2S_MCLK_OUTPUT_DISABLE ((uint32_t)0x00000000U) /*!< Master clock output is disabled */ | |
#define LL_I2S_MCLK_OUTPUT_ENABLE (SPI_I2SPR_MCKOE) /*!< Master clock output is enabled */ | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EC_AUDIO_FREQ Audio Frequency | |
* @{ | |
*/ | |
#define LL_I2S_AUDIOFREQ_192K ((uint32_t)192000) /*!< Audio Frequency configuration 192000 Hz */ | |
#define LL_I2S_AUDIOFREQ_96K ((uint32_t) 96000) /*!< Audio Frequency configuration 96000 Hz */ | |
#define LL_I2S_AUDIOFREQ_48K ((uint32_t) 48000) /*!< Audio Frequency configuration 48000 Hz */ | |
#define LL_I2S_AUDIOFREQ_44K ((uint32_t) 44100) /*!< Audio Frequency configuration 44100 Hz */ | |
#define LL_I2S_AUDIOFREQ_32K ((uint32_t) 32000) /*!< Audio Frequency configuration 32000 Hz */ | |
#define LL_I2S_AUDIOFREQ_22K ((uint32_t) 22050) /*!< Audio Frequency configuration 22050 Hz */ | |
#define LL_I2S_AUDIOFREQ_16K ((uint32_t) 16000) /*!< Audio Frequency configuration 16000 Hz */ | |
#define LL_I2S_AUDIOFREQ_11K ((uint32_t) 11025) /*!< Audio Frequency configuration 11025 Hz */ | |
#define LL_I2S_AUDIOFREQ_8K ((uint32_t) 8000) /*!< Audio Frequency configuration 8000 Hz */ | |
#define LL_I2S_AUDIOFREQ_DEFAULT ((uint32_t) 2) /*!< Audio Freq not specified. Register I2SDIV = 2 */ | |
/** | |
* @} | |
*/ | |
#endif /* USE_FULL_LL_DRIVER */ | |
/** | |
* @} | |
*/ | |
/* Exported macro ------------------------------------------------------------*/ | |
/** @defgroup I2S_LL_Exported_Macros I2S Exported Macros | |
* @{ | |
*/ | |
/** @defgroup I2S_LL_EM_WRITE_READ Common Write and read registers Macros | |
* @{ | |
*/ | |
/** | |
* @brief Write a value in I2S register | |
* @param __INSTANCE__ I2S Instance | |
* @param __REG__ Register to be written | |
* @param __VALUE__ Value to be written in the register | |
* @retval None | |
*/ | |
#define LL_I2S_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__)) | |
/** | |
* @brief Read a value in I2S register | |
* @param __INSTANCE__ I2S Instance | |
* @param __REG__ Register to be read | |
* @retval Register value | |
*/ | |
#define LL_I2S_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__) | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/* Exported functions --------------------------------------------------------*/ | |
/** @defgroup I2S_LL_Exported_Functions I2S Exported Functions | |
* @{ | |
*/ | |
/** @defgroup I2S_LL_EF_Configuration Configuration | |
* @{ | |
*/ | |
/** | |
* @brief Select I2S mode and Enable I2S peripheral | |
* @rmtoll I2SCFGR I2SMOD LL_I2S_Enable\n | |
* I2SCFGR I2SE LL_I2S_Enable | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_Enable(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE); | |
} | |
/** | |
* @brief Disable I2S peripheral | |
* @rmtoll I2SCFGR I2SE LL_I2S_Disable | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_Disable(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SMOD | SPI_I2SCFGR_I2SE); | |
} | |
/** | |
* @brief Check if I2S peripheral is enabled | |
* @rmtoll I2SCFGR I2SE LL_I2S_IsEnabled | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabled(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SE) == (SPI_I2SCFGR_I2SE)); | |
} | |
/** | |
* @brief Set I2S data frame length | |
* @rmtoll I2SCFGR DATLEN LL_I2S_SetDataFormat\n | |
* I2SCFGR CHLEN LL_I2S_SetDataFormat | |
* @param SPIx SPI Instance | |
* @param DataFormat This parameter can be one of the following values: | |
* @arg @ref LL_I2S_DATAFORMAT_16B | |
* @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED | |
* @arg @ref LL_I2S_DATAFORMAT_24B | |
* @arg @ref LL_I2S_DATAFORMAT_32B | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_SetDataFormat(SPI_TypeDef *SPIx, uint32_t DataFormat) | |
{ | |
MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN, DataFormat); | |
} | |
/** | |
* @brief Get I2S data frame length | |
* @rmtoll I2SCFGR DATLEN LL_I2S_GetDataFormat\n | |
* I2SCFGR CHLEN LL_I2S_GetDataFormat | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_I2S_DATAFORMAT_16B | |
* @arg @ref LL_I2S_DATAFORMAT_16B_EXTENDED | |
* @arg @ref LL_I2S_DATAFORMAT_24B | |
* @arg @ref LL_I2S_DATAFORMAT_32B | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_GetDataFormat(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_DATLEN | SPI_I2SCFGR_CHLEN)); | |
} | |
/** | |
* @brief Set I2S clock polarity | |
* @rmtoll I2SCFGR CKPOL LL_I2S_SetClockPolarity | |
* @param SPIx SPI Instance | |
* @param ClockPolarity This parameter can be one of the following values: | |
* @arg @ref LL_I2S_POLARITY_LOW | |
* @arg @ref LL_I2S_POLARITY_HIGH | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_SetClockPolarity(SPI_TypeDef *SPIx, uint32_t ClockPolarity) | |
{ | |
SET_BIT(SPIx->I2SCFGR, ClockPolarity); | |
} | |
/** | |
* @brief Get I2S clock polarity | |
* @rmtoll I2SCFGR CKPOL LL_I2S_GetClockPolarity | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_I2S_POLARITY_LOW | |
* @arg @ref LL_I2S_POLARITY_HIGH | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_GetClockPolarity(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_CKPOL)); | |
} | |
/** | |
* @brief Set I2S standard protocol | |
* @rmtoll I2SCFGR I2SSTD LL_I2S_SetStandard\n | |
* I2SCFGR PCMSYNC LL_I2S_SetStandard | |
* @param SPIx SPI Instance | |
* @param Standard This parameter can be one of the following values: | |
* @arg @ref LL_I2S_STANDARD_PHILIPS | |
* @arg @ref LL_I2S_STANDARD_MSB | |
* @arg @ref LL_I2S_STANDARD_LSB | |
* @arg @ref LL_I2S_STANDARD_PCM_SHORT | |
* @arg @ref LL_I2S_STANDARD_PCM_LONG | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_SetStandard(SPI_TypeDef *SPIx, uint32_t Standard) | |
{ | |
MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC, Standard); | |
} | |
/** | |
* @brief Get I2S standard protocol | |
* @rmtoll I2SCFGR I2SSTD LL_I2S_GetStandard\n | |
* I2SCFGR PCMSYNC LL_I2S_GetStandard | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_I2S_STANDARD_PHILIPS | |
* @arg @ref LL_I2S_STANDARD_MSB | |
* @arg @ref LL_I2S_STANDARD_LSB | |
* @arg @ref LL_I2S_STANDARD_PCM_SHORT | |
* @arg @ref LL_I2S_STANDARD_PCM_LONG | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_GetStandard(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SSTD | SPI_I2SCFGR_PCMSYNC)); | |
} | |
/** | |
* @brief Set I2S transfer mode | |
* @rmtoll I2SCFGR I2SCFG LL_I2S_SetTransferMode | |
* @param SPIx SPI Instance | |
* @param Mode This parameter can be one of the following values: | |
* @arg @ref LL_I2S_MODE_SLAVE_TX | |
* @arg @ref LL_I2S_MODE_SLAVE_RX | |
* @arg @ref LL_I2S_MODE_MASTER_TX | |
* @arg @ref LL_I2S_MODE_MASTER_RX | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_SetTransferMode(SPI_TypeDef *SPIx, uint32_t Mode) | |
{ | |
MODIFY_REG(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG, Mode); | |
} | |
/** | |
* @brief Get I2S transfer mode | |
* @rmtoll I2SCFGR I2SCFG LL_I2S_GetTransferMode | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_I2S_MODE_SLAVE_TX | |
* @arg @ref LL_I2S_MODE_SLAVE_RX | |
* @arg @ref LL_I2S_MODE_MASTER_TX | |
* @arg @ref LL_I2S_MODE_MASTER_RX | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_GetTransferMode(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_I2SCFG)); | |
} | |
/** | |
* @brief Set I2S linear prescaler | |
* @rmtoll I2SPR I2SDIV LL_I2S_SetPrescalerLinear | |
* @param SPIx SPI Instance | |
* @param PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_SetPrescalerLinear(SPI_TypeDef *SPIx, uint8_t PrescalerLinear) | |
{ | |
MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_I2SDIV, PrescalerLinear); | |
} | |
/** | |
* @brief Get I2S linear prescaler | |
* @rmtoll I2SPR I2SDIV LL_I2S_GetPrescalerLinear | |
* @param SPIx SPI Instance | |
* @retval PrescalerLinear Value between Min_Data=0x02 and Max_Data=0xFF | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_GetPrescalerLinear(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_I2SDIV)); | |
} | |
/** | |
* @brief Set I2S parity prescaler | |
* @rmtoll I2SPR ODD LL_I2S_SetPrescalerParity | |
* @param SPIx SPI Instance | |
* @param PrescalerParity This parameter can be one of the following values: | |
* @arg @ref LL_I2S_PRESCALER_PARITY_EVEN | |
* @arg @ref LL_I2S_PRESCALER_PARITY_ODD | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_SetPrescalerParity(SPI_TypeDef *SPIx, uint32_t PrescalerParity) | |
{ | |
MODIFY_REG(SPIx->I2SPR, SPI_I2SPR_ODD, PrescalerParity << 8U); | |
} | |
/** | |
* @brief Get I2S parity prescaler | |
* @rmtoll I2SPR ODD LL_I2S_GetPrescalerParity | |
* @param SPIx SPI Instance | |
* @retval Returned value can be one of the following values: | |
* @arg @ref LL_I2S_PRESCALER_PARITY_EVEN | |
* @arg @ref LL_I2S_PRESCALER_PARITY_ODD | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_GetPrescalerParity(SPI_TypeDef *SPIx) | |
{ | |
return (uint32_t)(READ_BIT(SPIx->I2SPR, SPI_I2SPR_ODD) >> 8U); | |
} | |
/** | |
* @brief Enable the master clock ouput (Pin MCK) | |
* @rmtoll I2SPR MCKOE LL_I2S_EnableMasterClock | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_EnableMasterClock(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE); | |
} | |
/** | |
* @brief Disable the master clock ouput (Pin MCK) | |
* @rmtoll I2SPR MCKOE LL_I2S_DisableMasterClock | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_DisableMasterClock(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE); | |
} | |
/** | |
* @brief Check if the master clock ouput (Pin MCK) is enabled | |
* @rmtoll I2SPR MCKOE LL_I2S_IsEnabledMasterClock | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabledMasterClock(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->I2SPR, SPI_I2SPR_MCKOE) == (SPI_I2SPR_MCKOE)); | |
} | |
#if defined(SPI_I2SCFGR_ASTRTEN) | |
/** | |
* @brief Enable asynchronous start | |
* @rmtoll I2SCFGR ASTRTEN LL_I2S_EnableAsyncStart | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_EnableAsyncStart(SPI_TypeDef *SPIx) | |
{ | |
SET_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN); | |
} | |
/** | |
* @brief Disable asynchronous start | |
* @rmtoll I2SCFGR ASTRTEN LL_I2S_DisableAsyncStart | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_DisableAsyncStart(SPI_TypeDef *SPIx) | |
{ | |
CLEAR_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN); | |
} | |
/** | |
* @brief Check if asynchronous start is enabled | |
* @rmtoll I2SCFGR ASTRTEN LL_I2S_IsEnabledAsyncStart | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabledAsyncStart(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->I2SCFGR, SPI_I2SCFGR_ASTRTEN) == (SPI_I2SCFGR_ASTRTEN)); | |
} | |
#endif /* SPI_I2SCFGR_ASTRTEN */ | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EF_FLAG FLAG Management | |
* @{ | |
*/ | |
/** | |
* @brief Check if Rx buffer is not empty | |
* @rmtoll SR RXNE LL_I2S_IsActiveFlag_RXNE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_RXNE(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsActiveFlag_RXNE(SPIx); | |
} | |
/** | |
* @brief Check if Tx buffer is empty | |
* @rmtoll SR TXE LL_I2S_IsActiveFlag_TXE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_TXE(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsActiveFlag_TXE(SPIx); | |
} | |
/** | |
* @brief Get busy flag | |
* @rmtoll SR BSY LL_I2S_IsActiveFlag_BSY | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_BSY(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsActiveFlag_BSY(SPIx); | |
} | |
/** | |
* @brief Get overrun error flag | |
* @rmtoll SR OVR LL_I2S_IsActiveFlag_OVR | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_OVR(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsActiveFlag_OVR(SPIx); | |
} | |
/** | |
* @brief Get underrun error flag | |
* @rmtoll SR UDR LL_I2S_IsActiveFlag_UDR | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_UDR(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_UDR) == (SPI_SR_UDR)); | |
} | |
/** | |
* @brief Get frame format error flag | |
* @rmtoll SR FRE LL_I2S_IsActiveFlag_FRE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_FRE(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsActiveFlag_FRE(SPIx); | |
} | |
/** | |
* @brief Get channel side flag. | |
* @note 0: Channel Left has to be transmitted or has been received\n | |
* 1: Channel Right has to be transmitted or has been received\n | |
* It has no significance in PCM mode. | |
* @rmtoll SR CHSIDE LL_I2S_IsActiveFlag_CHSIDE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsActiveFlag_CHSIDE(SPI_TypeDef *SPIx) | |
{ | |
return (READ_BIT(SPIx->SR, SPI_SR_CHSIDE) == (SPI_SR_CHSIDE)); | |
} | |
/** | |
* @brief Clear overrun error flag | |
* @rmtoll SR OVR LL_I2S_ClearFlag_OVR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_ClearFlag_OVR(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_ClearFlag_OVR(SPIx); | |
} | |
/** | |
* @brief Clear underrun error flag | |
* @rmtoll SR UDR LL_I2S_ClearFlag_UDR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_ClearFlag_UDR(SPI_TypeDef *SPIx) | |
{ | |
__IO uint32_t tmpreg; | |
tmpreg = SPIx->SR; | |
(void)tmpreg; | |
} | |
/** | |
* @brief Clear frame format error flag | |
* @rmtoll SR FRE LL_I2S_ClearFlag_FRE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_ClearFlag_FRE(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_ClearFlag_FRE(SPIx); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EF_IT Interrupt Management | |
* @{ | |
*/ | |
/** | |
* @brief Enable error IT | |
* @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode). | |
* @rmtoll CR2 ERRIE LL_I2S_EnableIT_ERR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_EnableIT_ERR(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_EnableIT_ERR(SPIx); | |
} | |
/** | |
* @brief Enable Rx buffer not empty IT | |
* @rmtoll CR2 RXNEIE LL_I2S_EnableIT_RXNE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_EnableIT_RXNE(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_EnableIT_RXNE(SPIx); | |
} | |
/** | |
* @brief Enable Tx buffer empty IT | |
* @rmtoll CR2 TXEIE LL_I2S_EnableIT_TXE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_EnableIT_TXE(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_EnableIT_TXE(SPIx); | |
} | |
/** | |
* @brief Disable error IT | |
* @note This bit controls the generation of an interrupt when an error condition occurs (OVR, UDR and FRE in I2S mode). | |
* @rmtoll CR2 ERRIE LL_I2S_DisableIT_ERR | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_DisableIT_ERR(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_DisableIT_ERR(SPIx); | |
} | |
/** | |
* @brief Disable Rx buffer not empty IT | |
* @rmtoll CR2 RXNEIE LL_I2S_DisableIT_RXNE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_DisableIT_RXNE(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_DisableIT_RXNE(SPIx); | |
} | |
/** | |
* @brief Disable Tx buffer empty IT | |
* @rmtoll CR2 TXEIE LL_I2S_DisableIT_TXE | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_DisableIT_TXE(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_DisableIT_TXE(SPIx); | |
} | |
/** | |
* @brief Check if ERR IT is enabled | |
* @rmtoll CR2 ERRIE LL_I2S_IsEnabledIT_ERR | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_ERR(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsEnabledIT_ERR(SPIx); | |
} | |
/** | |
* @brief Check if RXNE IT is enabled | |
* @rmtoll CR2 RXNEIE LL_I2S_IsEnabledIT_RXNE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_RXNE(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsEnabledIT_RXNE(SPIx); | |
} | |
/** | |
* @brief Check if TXE IT is enabled | |
* @rmtoll CR2 TXEIE LL_I2S_IsEnabledIT_TXE | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabledIT_TXE(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsEnabledIT_TXE(SPIx); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EF_DMA DMA Management | |
* @{ | |
*/ | |
/** | |
* @brief Enable DMA Rx | |
* @rmtoll CR2 RXDMAEN LL_I2S_EnableDMAReq_RX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_EnableDMAReq_RX(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_EnableDMAReq_RX(SPIx); | |
} | |
/** | |
* @brief Disable DMA Rx | |
* @rmtoll CR2 RXDMAEN LL_I2S_DisableDMAReq_RX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_DisableDMAReq_RX(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_DisableDMAReq_RX(SPIx); | |
} | |
/** | |
* @brief Check if DMA Rx is enabled | |
* @rmtoll CR2 RXDMAEN LL_I2S_IsEnabledDMAReq_RX | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_RX(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsEnabledDMAReq_RX(SPIx); | |
} | |
/** | |
* @brief Enable DMA Tx | |
* @rmtoll CR2 TXDMAEN LL_I2S_EnableDMAReq_TX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_EnableDMAReq_TX(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_EnableDMAReq_TX(SPIx); | |
} | |
/** | |
* @brief Disable DMA Tx | |
* @rmtoll CR2 TXDMAEN LL_I2S_DisableDMAReq_TX | |
* @param SPIx SPI Instance | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_DisableDMAReq_TX(SPI_TypeDef *SPIx) | |
{ | |
LL_SPI_DisableDMAReq_TX(SPIx); | |
} | |
/** | |
* @brief Check if DMA Tx is enabled | |
* @rmtoll CR2 TXDMAEN LL_I2S_IsEnabledDMAReq_TX | |
* @param SPIx SPI Instance | |
* @retval State of bit (1 or 0). | |
*/ | |
__STATIC_INLINE uint32_t LL_I2S_IsEnabledDMAReq_TX(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_IsEnabledDMAReq_TX(SPIx); | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup I2S_LL_EF_DATA DATA Management | |
* @{ | |
*/ | |
/** | |
* @brief Read 16-Bits in data register | |
* @rmtoll DR DR LL_I2S_ReceiveData16 | |
* @param SPIx SPI Instance | |
* @retval RxData Value between Min_Data=0x0000 and Max_Data=0xFFFF | |
*/ | |
__STATIC_INLINE uint16_t LL_I2S_ReceiveData16(SPI_TypeDef *SPIx) | |
{ | |
return LL_SPI_ReceiveData16(SPIx); | |
} | |
/** | |
* @brief Write 16-Bits in data register | |
* @rmtoll DR DR LL_I2S_TransmitData16 | |
* @param SPIx SPI Instance | |
* @param TxData Value between Min_Data=0x0000 and Max_Data=0xFFFF | |
* @retval None | |
*/ | |
__STATIC_INLINE void LL_I2S_TransmitData16(SPI_TypeDef *SPIx, uint16_t TxData) | |
{ | |
LL_SPI_TransmitData16(SPIx, TxData); | |
} | |
/** | |
* @} | |
*/ | |
#if defined(USE_FULL_LL_DRIVER) | |
/** @defgroup I2S_LL_EF_Init Initialization and de-initialization functions | |
* @{ | |
*/ | |
ErrorStatus LL_I2S_DeInit(SPI_TypeDef *SPIx); | |
ErrorStatus LL_I2S_Init(SPI_TypeDef *SPIx, LL_I2S_InitTypeDef *I2S_InitStruct); | |
void LL_I2S_StructInit(LL_I2S_InitTypeDef *I2S_InitStruct); | |
void LL_I2S_ConfigPrescaler(SPI_TypeDef *SPIx, uint32_t PrescalerLinear, uint32_t PrescalerParity); | |
/** | |
* @} | |
*/ | |
#endif /* USE_FULL_LL_DRIVER */ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
#endif /* SPI_I2S_SUPPORT */ | |
#endif /* defined (SPI1) || defined (SPI2) */ | |
/** | |
* @} | |
*/ | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* __STM32L0xx_LL_SPI_H */ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |