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******************************************************************************
* @file stm32l4xx_hal_can.h
* @author MCD Application Team
* @version V1.6.0
* @date 28-October-2016
* @brief Header file of CAN HAL 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 __STM32L4xx_CAN_H
#define __STM32L4xx_CAN_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal_def.h"
/** @addtogroup STM32L4xx_HAL_Driver
* @{
*/
/** @addtogroup CAN
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup CAN_Exported_Types CAN Exported Types
* @{
*/
/**
* @brief HAL State structures definition
*/
typedef enum
{
HAL_CAN_STATE_RESET = 0x00, /*!< CAN not yet initialized or disabled */
HAL_CAN_STATE_READY = 0x01, /*!< CAN initialized and ready for use */
HAL_CAN_STATE_BUSY = 0x02, /*!< CAN process is ongoing */
HAL_CAN_STATE_BUSY_TX = 0x12, /*!< CAN process is ongoing */
HAL_CAN_STATE_BUSY_RX = 0x22, /*!< CAN process is ongoing */
HAL_CAN_STATE_BUSY_TX_RX = 0x32, /*!< CAN process is ongoing */
HAL_CAN_STATE_TIMEOUT = 0x03, /*!< Timeout state */
HAL_CAN_STATE_ERROR = 0x04 /*!< CAN error state */
}HAL_CAN_StateTypeDef;
/**
* @brief CAN init structure definition
*/
typedef struct
{
uint32_t Prescaler; /*!< Specifies the length of a time quantum.
This parameter must be a number between Min_Data = 1 and Max_Data = 1024 */
uint32_t Mode; /*!< Specifies the CAN operating mode.
This parameter can be a value of @ref CAN_operating_mode */
uint32_t SJW; /*!< Specifies the maximum number of time quanta
the CAN hardware is allowed to lengthen or
shorten a bit to perform resynchronization.
This parameter can be a value of @ref CAN_synchronisation_jump_width */
uint32_t BS1; /*!< Specifies the number of time quanta in Bit Segment 1.
This parameter can be a value of @ref CAN_time_quantum_in_bit_segment_1 */
uint32_t BS2; /*!< Specifies the number of time quanta in Bit Segment 2.
This parameter can be a value of @ref CAN_time_quantum_in_bit_segment_2 */
uint32_t TTCM; /*!< Enable or disable the time triggered communication mode.
This parameter can be set to ENABLE or DISABLE. */
uint32_t ABOM; /*!< Enable or disable the automatic bus-off management.
This parameter can be set to ENABLE or DISABLE */
uint32_t AWUM; /*!< Enable or disable the automatic wake-up mode.
This parameter can be set to ENABLE or DISABLE */
uint32_t NART; /*!< Enable or disable the non-automatic retransmission mode.
This parameter can be set to ENABLE or DISABLE */
uint32_t RFLM; /*!< Enable or disable the receive FIFO Locked mode.
This parameter can be set to ENABLE or DISABLE */
uint32_t TXFP; /*!< Enable or disable the transmit FIFO priority.
This parameter can be set to ENABLE or DISABLE */
}CAN_InitTypeDef;
/**
* @brief CAN filter configuration structure definition
*/
typedef struct
{
uint32_t FilterIdHigh; /*!< Specifies the filter identification number (MSBs for a 32-bit
configuration, first one for a 16-bit configuration).
This parameter must be a number between Min_Data = 0x0000 and Max_Data = 0xFFFF */
uint32_t FilterIdLow; /*!< Specifies the filter identification number (LSBs for a 32-bit
configuration, second one for a 16-bit configuration).
This parameter must be a number between Min_Data = 0x0000 and Max_Data = 0xFFFF */
uint32_t FilterMaskIdHigh; /*!< Specifies the filter mask number or identification number,
according to the mode (MSBs for a 32-bit configuration,
first one for a 16-bit configuration).
This parameter must be a number between Min_Data = 0x0000 and Max_Data = 0xFFFF */
uint32_t FilterMaskIdLow; /*!< Specifies the filter mask number or identification number,
according to the mode (LSBs for a 32-bit configuration,
second one for a 16-bit configuration).
This parameter must be a number between Min_Data = 0x0000 and Max_Data = 0xFFFF */
uint32_t FilterFIFOAssignment; /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter.
This parameter can be a value of @ref CAN_filter_FIFO */
uint32_t FilterNumber; /*!< Specifies the filter which will be initialized.
This parameter must be a number between Min_Data = 0 and Max_Data = 27 */
uint32_t FilterMode; /*!< Specifies the filter mode to be initialized.
This parameter can be a value of @ref CAN_filter_mode */
uint32_t FilterScale; /*!< Specifies the filter scale.
This parameter can be a value of @ref CAN_filter_scale */
uint32_t FilterActivation; /*!< Enable or disable the filter.
This parameter can be set to ENABLE or DISABLE */
uint32_t BankNumber; /*!< Select the start slave bank filter.
This parameter must be a number between Min_Data = 0 and Max_Data = 28 */
}CAN_FilterConfTypeDef;
/**
* @brief CAN Tx message structure definition
*/
typedef struct
{
uint32_t StdId; /*!< Specifies the standard identifier.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x7FF */
uint32_t ExtId; /*!< Specifies the extended identifier.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x1FFFFFFF */
uint32_t IDE; /*!< Specifies the type of identifier for the message that will be transmitted.
This parameter can be a value of @ref CAN_identifier_type */
uint32_t RTR; /*!< Specifies the type of frame for the message that will be transmitted.
This parameter can be a value of @ref CAN_remote_transmission_request */
uint32_t DLC; /*!< Specifies the length of the frame that will be transmitted.
This parameter must be a number between Min_Data = 0 and Max_Data = 8 */
uint8_t Data[8]; /*!< Contains the data to be transmitted.
This parameter must be a number between Min_Data = 0 and Max_Data = 0xFF */
}CanTxMsgTypeDef;
/**
* @brief CAN Rx message structure definition
*/
typedef struct
{
uint32_t StdId; /*!< Specifies the standard identifier.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x7FF */
uint32_t ExtId; /*!< Specifies the extended identifier.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x1FFFFFFF */
uint32_t IDE; /*!< Specifies the type of identifier for the message that will be received.
This parameter can be a value of @ref CAN_identifier_type */
uint32_t RTR; /*!< Specifies the type of frame for the received message.
This parameter can be a value of @ref CAN_remote_transmission_request */
uint32_t DLC; /*!< Specifies the length of the frame that will be received.
This parameter must be a number between Min_Data = 0 and Max_Data = 8 */
uint8_t Data[8]; /*!< Contains the data to be received.
This parameter must be a number between Min_Data = 0 and Max_Data = 0xFF */
uint32_t FMI; /*!< Specifies the index of the filter the message stored in the mailbox passes through.
This parameter must be a number between Min_Data = 0 and Max_Data = 0xFF */
uint32_t FIFONumber; /*!< Specifies the receive FIFO number.
This parameter can be CAN_FIFO0 or CAN_FIFO1 */
}CanRxMsgTypeDef;
/**
* @brief CAN handle Structure definition
*/
typedef struct
{
CAN_TypeDef *Instance; /*!< Register base address */
CAN_InitTypeDef Init; /*!< CAN required parameters */
CanTxMsgTypeDef* pTxMsg; /*!< Pointer to transmit structure */
CanRxMsgTypeDef* pRxMsg; /*!< Pointer to reception structure */
__IO HAL_CAN_StateTypeDef State; /*!< CAN communication state */
HAL_LockTypeDef Lock; /*!< CAN locking object */
__IO uint32_t ErrorCode; /*!< CAN Error code */
}CAN_HandleTypeDef;
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup CAN_Exported_Constants CAN Exported Constants
* @{
*/
/** @defgroup CAN_Error_Code CAN Error Code
* @{
*/
#define HAL_CAN_ERROR_NONE ((uint32_t)0x00000000) /*!< No error */
#define HAL_CAN_ERROR_EWG ((uint32_t)0x00000001) /*!< EWG error */
#define HAL_CAN_ERROR_EPV ((uint32_t)0x00000002) /*!< EPV error */
#define HAL_CAN_ERROR_BOF ((uint32_t)0x00000004) /*!< BOF error */
#define HAL_CAN_ERROR_STF ((uint32_t)0x00000008) /*!< Stuff error */
#define HAL_CAN_ERROR_FOR ((uint32_t)0x00000010) /*!< Form error */
#define HAL_CAN_ERROR_ACK ((uint32_t)0x00000020) /*!< Acknowledgment error */
#define HAL_CAN_ERROR_BR ((uint32_t)0x00000040) /*!< Bit recessive */
#define HAL_CAN_ERROR_BD ((uint32_t)0x00000080) /*!< LEC dominant */
#define HAL_CAN_ERROR_CRC ((uint32_t)0x00000100) /*!< LEC transfer error */
/**
* @}
*/
/** @defgroup CAN_InitStatus CAN initialization Status
* @{
*/
#define CAN_INITSTATUS_FAILED ((uint32_t)0x00000000) /*!< CAN initialization failed */
#define CAN_INITSTATUS_SUCCESS ((uint32_t)0x00000001) /*!< CAN initialization OK */
/**
* @}
*/
/** @defgroup CAN_operating_mode CAN Operating Mode
* @{
*/
#define CAN_MODE_NORMAL ((uint32_t)0x00000000) /*!< Normal mode */
#define CAN_MODE_LOOPBACK ((uint32_t)CAN_BTR_LBKM) /*!< Loopback mode */
#define CAN_MODE_SILENT ((uint32_t)CAN_BTR_SILM) /*!< Silent mode */
#define CAN_MODE_SILENT_LOOPBACK ((uint32_t)(CAN_BTR_LBKM | CAN_BTR_SILM)) /*!< Loopback combined with silent mode */
/**
* @}
*/
/** @defgroup CAN_synchronisation_jump_width CAN Synchronization Jump Width
* @{
*/
#define CAN_SJW_1TQ ((uint32_t)0x00000000) /*!< 1 time quantum */
#define CAN_SJW_2TQ ((uint32_t)CAN_BTR_SJW_0) /*!< 2 time quantum */
#define CAN_SJW_3TQ ((uint32_t)CAN_BTR_SJW_1) /*!< 3 time quantum */
#define CAN_SJW_4TQ ((uint32_t)CAN_BTR_SJW) /*!< 4 time quantum */
/**
* @}
*/
/** @defgroup CAN_time_quantum_in_bit_segment_1 CAN Time Quantum in Bit Segment 1
* @{
*/
#define CAN_BS1_1TQ ((uint32_t)0x00000000) /*!< 1 time quantum */
#define CAN_BS1_2TQ ((uint32_t)CAN_BTR_TS1_0) /*!< 2 time quantum */
#define CAN_BS1_3TQ ((uint32_t)CAN_BTR_TS1_1) /*!< 3 time quantum */
#define CAN_BS1_4TQ ((uint32_t)(CAN_BTR_TS1_1 | CAN_BTR_TS1_0)) /*!< 4 time quantum */
#define CAN_BS1_5TQ ((uint32_t)CAN_BTR_TS1_2) /*!< 5 time quantum */
#define CAN_BS1_6TQ ((uint32_t)(CAN_BTR_TS1_2 | CAN_BTR_TS1_0)) /*!< 6 time quantum */
#define CAN_BS1_7TQ ((uint32_t)(CAN_BTR_TS1_2 | CAN_BTR_TS1_1)) /*!< 7 time quantum */
#define CAN_BS1_8TQ ((uint32_t)(CAN_BTR_TS1_2 | CAN_BTR_TS1_1 | CAN_BTR_TS1_0)) /*!< 8 time quantum */
#define CAN_BS1_9TQ ((uint32_t)CAN_BTR_TS1_3) /*!< 9 time quantum */
#define CAN_BS1_10TQ ((uint32_t)(CAN_BTR_TS1_3 | CAN_BTR_TS1_0)) /*!< 10 time quantum */
#define CAN_BS1_11TQ ((uint32_t)(CAN_BTR_TS1_3 | CAN_BTR_TS1_1)) /*!< 11 time quantum */
#define CAN_BS1_12TQ ((uint32_t)(CAN_BTR_TS1_3 | CAN_BTR_TS1_1 | CAN_BTR_TS1_0)) /*!< 12 time quantum */
#define CAN_BS1_13TQ ((uint32_t)(CAN_BTR_TS1_3 | CAN_BTR_TS1_2)) /*!< 13 time quantum */
#define CAN_BS1_14TQ ((uint32_t)(CAN_BTR_TS1_3 | CAN_BTR_TS1_2 | CAN_BTR_TS1_0)) /*!< 14 time quantum */
#define CAN_BS1_15TQ ((uint32_t)(CAN_BTR_TS1_3 | CAN_BTR_TS1_2 | CAN_BTR_TS1_1)) /*!< 15 time quantum */
#define CAN_BS1_16TQ ((uint32_t)CAN_BTR_TS1) /*!< 16 time quantum */
/**
* @}
*/
/** @defgroup CAN_time_quantum_in_bit_segment_2 CAN Time Quantum in Bit Segment 2
* @{
*/
#define CAN_BS2_1TQ ((uint32_t)0x00000000) /*!< 1 time quantum */
#define CAN_BS2_2TQ ((uint32_t)CAN_BTR_TS2_0) /*!< 2 time quantum */
#define CAN_BS2_3TQ ((uint32_t)CAN_BTR_TS2_1) /*!< 3 time quantum */
#define CAN_BS2_4TQ ((uint32_t)(CAN_BTR_TS2_1 | CAN_BTR_TS2_0)) /*!< 4 time quantum */
#define CAN_BS2_5TQ ((uint32_t)CAN_BTR_TS2_2) /*!< 5 time quantum */
#define CAN_BS2_6TQ ((uint32_t)(CAN_BTR_TS2_2 | CAN_BTR_TS2_0)) /*!< 6 time quantum */
#define CAN_BS2_7TQ ((uint32_t)(CAN_BTR_TS2_2 | CAN_BTR_TS2_1)) /*!< 7 time quantum */
#define CAN_BS2_8TQ ((uint32_t)CAN_BTR_TS2) /*!< 8 time quantum */
/**
* @}
*/
/** @defgroup CAN_filter_mode CAN Filter Mode
* @{
*/
#define CAN_FILTERMODE_IDMASK ((uint8_t)0x00) /*!< Identifier mask mode */
#define CAN_FILTERMODE_IDLIST ((uint8_t)0x01) /*!< Identifier list mode */
/**
* @}
*/
/** @defgroup CAN_filter_scale CAN Filter Scale
* @{
*/
#define CAN_FILTERSCALE_16BIT ((uint8_t)0x00) /*!< Two 16-bit filters */
#define CAN_FILTERSCALE_32BIT ((uint8_t)0x01) /*!< One 32-bit filter */
/**
* @}
*/
/** @defgroup CAN_filter_FIFO CAN Filter FIFO
* @{
*/
#define CAN_FILTER_FIFO0 ((uint8_t)0x00) /*!< Filter FIFO 0 assignment for filter x */
#define CAN_FILTER_FIFO1 ((uint8_t)0x01) /*!< Filter FIFO 1 assignment for filter x */
/**
* @}
*/
/** @defgroup CAN_identifier_type CAN Identifier Type
* @{
*/
#define CAN_ID_STD ((uint32_t)0x00000000) /*!< Standard Id */
#define CAN_ID_EXT ((uint32_t)0x00000004) /*!< Extended Id */
/**
* @}
*/
/** @defgroup CAN_remote_transmission_request CAN Remote Transmission Request
* @{
*/
#define CAN_RTR_DATA ((uint32_t)0x00000000) /*!< Data frame */
#define CAN_RTR_REMOTE ((uint32_t)0x00000002) /*!< Remote frame */
/**
* @}
*/
/** @defgroup CAN_receive_FIFO_number_constants CAN Receive FIFO Number
* @{
*/
#define CAN_FIFO0 ((uint8_t)0x00) /*!< CAN FIFO 0 used to receive */
#define CAN_FIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used to receive */
/**
* @}
*/
/** @defgroup CAN_flags CAN Flags
* @{
*/
/* If the flag is 0x3XXXXXXX, it means that it can be used with CAN_GetFlagStatus()
and CAN_ClearFlag() functions. */
/* If the flag is 0x1XXXXXXX, it means that it can only be used with
CAN_GetFlagStatus() function. */
/* Transmit Flags */
#define CAN_FLAG_RQCP0 ((uint32_t)0x00000500) /*!< Request MailBox0 flag */
#define CAN_FLAG_RQCP1 ((uint32_t)0x00000508) /*!< Request MailBox1 flag */
#define CAN_FLAG_RQCP2 ((uint32_t)0x00000510) /*!< Request MailBox2 flag */
#define CAN_FLAG_TXOK0 ((uint32_t)0x00000501) /*!< Transmission OK MailBox0 flag */
#define CAN_FLAG_TXOK1 ((uint32_t)0x00000509) /*!< Transmission OK MailBox1 flag */
#define CAN_FLAG_TXOK2 ((uint32_t)0x00000511) /*!< Transmission OK MailBox2 flag */
#define CAN_FLAG_TME0 ((uint32_t)0x0000051A) /*!< Transmit mailbox 0 empty flag */
#define CAN_FLAG_TME1 ((uint32_t)0x0000051B) /*!< Transmit mailbox 0 empty flag */
#define CAN_FLAG_TME2 ((uint32_t)0x0000051C) /*!< Transmit mailbox 0 empty flag */
/* Receive Flags */
#define CAN_FLAG_FF0 ((uint32_t)0x00000203) /*!< FIFO 0 Full flag */
#define CAN_FLAG_FOV0 ((uint32_t)0x00000204) /*!< FIFO 0 Overrun flag */
#define CAN_FLAG_FF1 ((uint32_t)0x00000403) /*!< FIFO 1 Full flag */
#define CAN_FLAG_FOV1 ((uint32_t)0x00000404) /*!< FIFO 1 Overrun flag */
/* Operating Mode Flags */
#define CAN_FLAG_WKU ((uint32_t)0x00000103) /*!< Wake up flag */
#define CAN_FLAG_SLAK ((uint32_t)0x00000101) /*!< Sleep acknowledge flag */
#define CAN_FLAG_SLAKI ((uint32_t)0x00000104) /*!< Sleep acknowledge flag */
/* @note When SLAK interrupt is disabled (SLKIE=0), no polling on SLAKI is possible.
In this case the SLAK bit can be polled.*/
/* Error Flags */
#define CAN_FLAG_EWG ((uint32_t)0x00000300) /*!< Error warning flag */
#define CAN_FLAG_EPV ((uint32_t)0x00000301) /*!< Error passive flag */
#define CAN_FLAG_BOF ((uint32_t)0x00000302) /*!< Bus-Off flag */
/**
* @}
*/
/** @defgroup CAN_interrupts CAN Interrupts
* @{
*/
#define CAN_IT_TME ((uint32_t)CAN_IER_TMEIE) /*!< Transmit mailbox empty interrupt */
/* Receive Interrupts */
#define CAN_IT_FMP0 ((uint32_t)CAN_IER_FMPIE0) /*!< FIFO 0 message pending interrupt */
#define CAN_IT_FF0 ((uint32_t)CAN_IER_FFIE0) /*!< FIFO 0 full interrupt */
#define CAN_IT_FOV0 ((uint32_t)CAN_IER_FOVIE0) /*!< FIFO 0 overrun interrupt */
#define CAN_IT_FMP1 ((uint32_t)CAN_IER_FMPIE1) /*!< FIFO 1 message pending interrupt */
#define CAN_IT_FF1 ((uint32_t)CAN_IER_FFIE1) /*!< FIFO 1 full interrupt */
#define CAN_IT_FOV1 ((uint32_t)CAN_IER_FOVIE1) /*!< FIFO 1 overrun interrupt */
/* Operating Mode Interrupts */
#define CAN_IT_WKU ((uint32_t)CAN_IER_WKUIE) /*!< Wake-up interrupt */
#define CAN_IT_SLK ((uint32_t)CAN_IER_SLKIE) /*!< Sleep acknowledge interrupt */
/* Error Interrupts */
#define CAN_IT_EWG ((uint32_t)CAN_IER_EWGIE) /*!< Error warning interrupt */
#define CAN_IT_EPV ((uint32_t)CAN_IER_EPVIE) /*!< Error passive interrupt */
#define CAN_IT_BOF ((uint32_t)CAN_IER_BOFIE) /*!< Bus-off interrupt */
#define CAN_IT_LEC ((uint32_t)CAN_IER_LECIE) /*!< Last error code interrupt */
#define CAN_IT_ERR ((uint32_t)CAN_IER_ERRIE) /*!< Error Interrupt */
/**
* @}
*/
/* Mailboxes definition */
#define CAN_TXMAILBOX_0 ((uint8_t)0x00)
#define CAN_TXMAILBOX_1 ((uint8_t)0x01)
#define CAN_TXMAILBOX_2 ((uint8_t)0x02)
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/** @defgroup CAN_Exported_Macro CAN Exported Macros
* @{
*/
/** @brief Reset CAN handle state.
* @param __HANDLE__: CAN handle.
* @retval None
*/
#define __HAL_CAN_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_CAN_STATE_RESET)
/**
* @brief Enable the specified CAN interrupt.
* @param __HANDLE__: CAN handle.
* @param __INTERRUPT__: CAN Interrupt.
* @retval None
*/
#define __HAL_CAN_ENABLE_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->IER) |= (__INTERRUPT__))
/**
* @brief Disable the specified CAN interrupt.
* @param __HANDLE__: CAN handle.
* @param __INTERRUPT__: CAN Interrupt.
* @retval None
*/
#define __HAL_CAN_DISABLE_IT(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->IER) &= ~(__INTERRUPT__))
/**
* @brief Return the number of pending received messages.
* @param __HANDLE__: CAN handle.
* @param __FIFONUMBER__: Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.
* @retval The number of pending message.
*/
#define __HAL_CAN_MSG_PENDING(__HANDLE__, __FIFONUMBER__) (((__FIFONUMBER__) == CAN_FIFO0)? \
((uint8_t)((__HANDLE__)->Instance->RF0R&(uint32_t)0x03)) : ((uint8_t)((__HANDLE__)->Instance->RF1R&(uint32_t)0x03)))
/** @brief Check whether the specified CAN flag is set or not.
* @param __HANDLE__: specifies the CAN Handle.
* @param __FLAG__: specifies the flag to check.
* This parameter can be one of the following values:
* @arg CAN_TSR_RQCP0: Request MailBox0 Flag
* @arg CAN_TSR_RQCP1: Request MailBox1 Flag
* @arg CAN_TSR_RQCP2: Request MailBox2 Flag
* @arg CAN_FLAG_TXOK0: Transmission OK MailBox0 Flag
* @arg CAN_FLAG_TXOK1: Transmission OK MailBox1 Flag
* @arg CAN_FLAG_TXOK2: Transmission OK MailBox2 Flag
* @arg CAN_FLAG_TME0: Transmit mailbox 0 empty Flag
* @arg CAN_FLAG_TME1: Transmit mailbox 1 empty Flag
* @arg CAN_FLAG_TME2: Transmit mailbox 2 empty Flag
* @arg CAN_FLAG_FMP0: FIFO 0 Message Pending Flag
* @arg CAN_FLAG_FF0: FIFO 0 Full Flag
* @arg CAN_FLAG_FOV0: FIFO 0 Overrun Flag
* @arg CAN_FLAG_FMP1: FIFO 1 Message Pending Flag
* @arg CAN_FLAG_FF1: FIFO 1 Full Flag
* @arg CAN_FLAG_FOV1: FIFO 1 Overrun Flag
* @arg CAN_FLAG_WKU: Wake up Flag
* @arg CAN_FLAG_SLAK: Sleep acknowledge Flag
* @arg CAN_FLAG_SLAKI: Sleep acknowledge Flag
* @arg CAN_FLAG_EWG: Error Warning Flag
* @arg CAN_FLAG_EPV: Error Passive Flag
* @arg CAN_FLAG_BOF: Bus-Off Flag
* @retval The new state of __FLAG__ (TRUE or FALSE).
*/
#define __HAL_CAN_GET_FLAG(__HANDLE__, __FLAG__) \
((((__FLAG__) >> 8) == 5)? ((((__HANDLE__)->Instance->TSR) & (1U << ((__FLAG__) & CAN_FLAG_MASK))) == (1U << ((__FLAG__) & CAN_FLAG_MASK))): \
(((__FLAG__) >> 8) == 2)? ((((__HANDLE__)->Instance->RF0R) & (1U << ((__FLAG__) & CAN_FLAG_MASK))) == (1U << ((__FLAG__) & CAN_FLAG_MASK))): \
(((__FLAG__) >> 8) == 4)? ((((__HANDLE__)->Instance->RF1R) & (1U << ((__FLAG__) & CAN_FLAG_MASK))) == (1U << ((__FLAG__) & CAN_FLAG_MASK))): \
(((__FLAG__) >> 8) == 1)? ((((__HANDLE__)->Instance->MSR) & (1U << ((__FLAG__) & CAN_FLAG_MASK))) == (1U << ((__FLAG__) & CAN_FLAG_MASK))): \
((((__HANDLE__)->Instance->ESR) & (1U << ((__FLAG__) & CAN_FLAG_MASK))) == (1U << ((__FLAG__) & CAN_FLAG_MASK))))
/** @brief Clear the specified CAN pending flag.
* @param __HANDLE__: specifies the CAN Handle.
* @param __FLAG__: specifies the flag to check.
* This parameter can be one of the following values:
* @arg CAN_TSR_RQCP0: Request MailBox0 Flag
* @arg CAN_TSR_RQCP1: Request MailBox1 Flag
* @arg CAN_TSR_RQCP2: Request MailBox2 Flag
* @arg CAN_FLAG_TXOK0: Transmission OK MailBox0 Flag
* @arg CAN_FLAG_TXOK1: Transmission OK MailBox1 Flag
* @arg CAN_FLAG_TXOK2: Transmission OK MailBox2 Flag
* @arg CAN_FLAG_TME0: Transmit mailbox 0 empty Flag
* @arg CAN_FLAG_TME1: Transmit mailbox 1 empty Flag
* @arg CAN_FLAG_TME2: Transmit mailbox 2 empty Flag
* @arg CAN_FLAG_FMP0: FIFO 0 Message Pending Flag
* @arg CAN_FLAG_FF0: FIFO 0 Full Flag
* @arg CAN_FLAG_FOV0: FIFO 0 Overrun Flag
* @arg CAN_FLAG_FMP1: FIFO 1 Message Pending Flag
* @arg CAN_FLAG_FF1: FIFO 1 Full Flag
* @arg CAN_FLAG_FOV1: FIFO 1 Overrun Flag
* @arg CAN_FLAG_WKU: Wake up Flag
* @arg CAN_FLAG_SLAKI: Sleep acknowledge Flag
* @retval The new state of __FLAG__ (TRUE or FALSE).
*/
#define __HAL_CAN_CLEAR_FLAG(__HANDLE__, __FLAG__) \
((((__FLAG__) >> 8U) == 5)? (((__HANDLE__)->Instance->TSR) = (1U << ((__FLAG__) & CAN_FLAG_MASK))): \
(((__FLAG__) >> 8U) == 2)? (((__HANDLE__)->Instance->RF0R) = (1U << ((__FLAG__) & CAN_FLAG_MASK))): \
(((__FLAG__) >> 8U) == 4)? (((__HANDLE__)->Instance->RF1R) = (1U << ((__FLAG__) & CAN_FLAG_MASK))): \
(((__FLAG__) >> 8U) == 1)? (((__HANDLE__)->Instance->MSR) = (1U << ((__FLAG__) & CAN_FLAG_MASK))): 0)
/** @brief Check whether the specified CAN interrupt source is enabled or not.
* @param __HANDLE__: specifies the CAN Handle.
* @param __INTERRUPT__: specifies the CAN interrupt source to check.
* This parameter can be one of the following values:
* @arg CAN_IT_TME: Transmit mailbox empty interrupt enable
* @arg CAN_IT_FMP0: FIFO0 message pending interrupt enable
* @arg CAN_IT_FMP1: FIFO1 message pending interrupt enable
* @retval The new state of __IT__ (TRUE or FALSE).
*/
#define __HAL_CAN_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->IER & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
/**
* @brief Check the transmission status of a CAN Frame.
* @param __HANDLE__: specifies the CAN Handle.
* @param __TRANSMITMAILBOX__: the number of the mailbox that is used for transmission.
* @retval The new status of transmission (TRUE or FALSE).
*/
#define __HAL_CAN_TRANSMIT_STATUS(__HANDLE__, __TRANSMITMAILBOX__)\
(((__TRANSMITMAILBOX__) == CAN_TXMAILBOX_0)? ((((__HANDLE__)->Instance->TSR) & (CAN_TSR_RQCP0 | CAN_TSR_TXOK0 | CAN_TSR_TME0)) == (CAN_TSR_RQCP0 | CAN_TSR_TXOK0 | CAN_TSR_TME0)) :\
((__TRANSMITMAILBOX__) == CAN_TXMAILBOX_1)? ((((__HANDLE__)->Instance->TSR) & (CAN_TSR_RQCP1 | CAN_TSR_TXOK1 | CAN_TSR_TME1)) == (CAN_TSR_RQCP1 | CAN_TSR_TXOK1 | CAN_TSR_TME1)) :\
((((__HANDLE__)->Instance->TSR) & (CAN_TSR_RQCP2 | CAN_TSR_TXOK2 | CAN_TSR_TME2)) == (CAN_TSR_RQCP2 | CAN_TSR_TXOK2 | CAN_TSR_TME2)))
/**
* @brief Release the specified receive FIFO.
* @param __HANDLE__: CAN handle.
* @param __FIFONUMBER__: Receive FIFO number, CAN_FIFO0 or CAN_FIFO1.
* @retval None
*/
#define __HAL_CAN_FIFO_RELEASE(__HANDLE__, __FIFONUMBER__) (((__FIFONUMBER__) == CAN_FIFO0)? \
((__HANDLE__)->Instance->RF0R |= CAN_RF0R_RFOM0) : ((__HANDLE__)->Instance->RF1R |= CAN_RF1R_RFOM1))
/**
* @brief Cancel a transmit request.
* @param __HANDLE__: specifies the CAN Handle.
* @param __TRANSMITMAILBOX__: the number of the mailbox that is used for transmission.
* @retval None
*/
#define __HAL_CAN_CANCEL_TRANSMIT(__HANDLE__, __TRANSMITMAILBOX__)\
(((__TRANSMITMAILBOX__) == CAN_TXMAILBOX_0)? ((__HANDLE__)->Instance->TSR |= CAN_TSR_ABRQ0) :\
((__TRANSMITMAILBOX__) == CAN_TXMAILBOX_1)? ((__HANDLE__)->Instance->TSR |= CAN_TSR_ABRQ1) :\
((__HANDLE__)->Instance->TSR |= CAN_TSR_ABRQ2))
/**
* @brief Enable or disable the DBG Freeze for CAN.
* @param __HANDLE__: specifies the CAN Handle.
* @param __NEWSTATE__: new state of the CAN peripheral.
* This parameter can be: ENABLE (CAN reception/transmission is frozen
* during debug. Reception FIFO can still be accessed/controlled normally)
* or DISABLE (CAN is working during debug).
* @retval None
*/
#define __HAL_CAN_DBG_FREEZE(__HANDLE__, __NEWSTATE__) (((__NEWSTATE__) == ENABLE)? \
((__HANDLE__)->Instance->MCR |= CAN_MCR_DBF) : ((__HANDLE__)->Instance->MCR &= ~CAN_MCR_DBF))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup CAN_Exported_Functions CAN Exported Functions
* @{
*/
/** @defgroup CAN_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and Configuration functions
* @{
*/
/* addtogroup and de-initialization functions *****************************/
HAL_StatusTypeDef HAL_CAN_Init(CAN_HandleTypeDef* hcan);
HAL_StatusTypeDef HAL_CAN_ConfigFilter(CAN_HandleTypeDef* hcan, CAN_FilterConfTypeDef* sFilterConfig);
HAL_StatusTypeDef HAL_CAN_DeInit(CAN_HandleTypeDef* hcan);
void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan);
void HAL_CAN_MspDeInit(CAN_HandleTypeDef* hcan);
/**
* @}
*/
/** @addtogroup CAN_Exported_Functions_Group2 Input and Output operation functions
* @brief I/O operation functions
* @{
*/
/* IO operation functions *****************************************************/
HAL_StatusTypeDef HAL_CAN_Transmit(CAN_HandleTypeDef *hcan, uint32_t Timeout);
HAL_StatusTypeDef HAL_CAN_Transmit_IT(CAN_HandleTypeDef *hcan);
HAL_StatusTypeDef HAL_CAN_Receive(CAN_HandleTypeDef *hcan, uint8_t FIFONumber, uint32_t Timeout);
HAL_StatusTypeDef HAL_CAN_Receive_IT(CAN_HandleTypeDef *hcan, uint8_t FIFONumber);
HAL_StatusTypeDef HAL_CAN_Sleep(CAN_HandleTypeDef *hcan);
HAL_StatusTypeDef HAL_CAN_WakeUp(CAN_HandleTypeDef *hcan);
void HAL_CAN_IRQHandler(CAN_HandleTypeDef* hcan);
void HAL_CAN_TxCpltCallback(CAN_HandleTypeDef* hcan);
void HAL_CAN_RxCpltCallback(CAN_HandleTypeDef* hcan);
void HAL_CAN_ErrorCallback(CAN_HandleTypeDef *hcan);
/**
* @}
*/
/** @addtogroup CAN_Exported_Functions_Group3 Peripheral State and Error functions
* @brief CAN Peripheral State functions
* @{
*/
/* Peripheral State and Error functions ***************************************/
uint32_t HAL_CAN_GetError(CAN_HandleTypeDef *hcan);
HAL_CAN_StateTypeDef HAL_CAN_GetState(CAN_HandleTypeDef* hcan);
/**
* @}
*/
/**
* @}
*/
/* Private types -------------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup CAN_Private_Constants CAN Private Constants
* @{
*/
/** @defgroup CAN_transmit_constants CAN Transmit Constants
* @{
*/
#define CAN_TXSTATUS_NOMAILBOX ((uint8_t)0x04) /*!< CAN cell did not provide CAN_TxStatus_NoMailBox */
/**
* @}
*/
#define CAN_FLAG_MASK ((uint32_t)0x000000FF)
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup CAN_Private_Macros CAN Private Macros
* @{
*/
#define IS_CAN_MODE(MODE) (((MODE) == CAN_MODE_NORMAL) || \
((MODE) == CAN_MODE_LOOPBACK)|| \
((MODE) == CAN_MODE_SILENT) || \
((MODE) == CAN_MODE_SILENT_LOOPBACK))
#define IS_CAN_SJW(SJW) (((SJW) == CAN_SJW_1TQ) || ((SJW) == CAN_SJW_2TQ)|| \
((SJW) == CAN_SJW_3TQ) || ((SJW) == CAN_SJW_4TQ))
#define IS_CAN_BS1(BS1) ((BS1) <= CAN_BS1_16TQ)
#define IS_CAN_BS2(BS2) ((BS2) <= CAN_BS2_8TQ)
#define IS_CAN_PRESCALER(PRESCALER) (((PRESCALER) >= 1) && ((PRESCALER) <= 1024))
#define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 27)
#define IS_CAN_FILTER_MODE(MODE) (((MODE) == CAN_FILTERMODE_IDMASK) || \
((MODE) == CAN_FILTERMODE_IDLIST))
#define IS_CAN_FILTER_SCALE(SCALE) (((SCALE) == CAN_FILTERSCALE_16BIT) || \
((SCALE) == CAN_FILTERSCALE_32BIT))
#define IS_CAN_FILTER_FIFO(FIFO) (((FIFO) == CAN_FILTER_FIFO0) || \
((FIFO) == CAN_FILTER_FIFO1))
#define IS_CAN_BANKNUMBER(BANKNUMBER) ((BANKNUMBER) <= 28)
#define IS_CAN_TRANSMITMAILBOX(TRANSMITMAILBOX) ((TRANSMITMAILBOX) <= ((uint8_t)0x02))
#define IS_CAN_STDID(STDID) ((STDID) <= ((uint32_t)0x7FF))
#define IS_CAN_EXTID(EXTID) ((EXTID) <= ((uint32_t)0x1FFFFFFF))
#define IS_CAN_DLC(DLC) ((DLC) <= ((uint8_t)0x08))
#define IS_CAN_IDTYPE(IDTYPE) (((IDTYPE) == CAN_ID_STD) || \
((IDTYPE) == CAN_ID_EXT))
#define IS_CAN_RTR(RTR) (((RTR) == CAN_RTR_DATA) || ((RTR) == CAN_RTR_REMOTE))
#define IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) || ((FIFO) == CAN_FIFO1))
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __STM32L4xx_CAN_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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