| /** | |
| ****************************************************************************** | |
| * @file stm32f4xx_can.h | |
| * @author MCD Application Team | |
| * @version V1.0.0 | |
| * @date 30-September-2011 | |
| * @brief This file contains all the functions prototypes for the CAN firmware | |
| * library. | |
| ****************************************************************************** | |
| * @attention | |
| * | |
| * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS | |
| * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE | |
| * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY | |
| * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING | |
| * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE | |
| * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. | |
| * | |
| * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> | |
| ****************************************************************************** | |
| */ | |
| /* Define to prevent recursive inclusion -------------------------------------*/ | |
| #ifndef __STM32F4xx_CAN_H | |
| #define __STM32F4xx_CAN_H | |
| #ifdef __cplusplus | |
| extern "C" { | |
| #endif | |
| /* Includes ------------------------------------------------------------------*/ | |
| #include "stm32f4xx.h" | |
| /** @addtogroup STM32F4xx_StdPeriph_Driver | |
| * @{ | |
| */ | |
| /** @addtogroup CAN | |
| * @{ | |
| */ | |
| /* Exported types ------------------------------------------------------------*/ | |
| #define IS_CAN_ALL_PERIPH(PERIPH) (((PERIPH) == CAN1) || \ | |
| ((PERIPH) == CAN2)) | |
| /** | |
| * @brief CAN init structure definition | |
| */ | |
| typedef struct | |
| { | |
| uint16_t CAN_Prescaler; /*!< Specifies the length of a time quantum. | |
| It ranges from 1 to 1024. */ | |
| uint8_t CAN_Mode; /*!< Specifies the CAN operating mode. | |
| This parameter can be a value of @ref CAN_operating_mode */ | |
| uint8_t CAN_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 */ | |
| uint8_t CAN_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 */ | |
| uint8_t CAN_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 */ | |
| FunctionalState CAN_TTCM; /*!< Enable or disable the time triggered communication mode. | |
| This parameter can be set either to ENABLE or DISABLE. */ | |
| FunctionalState CAN_ABOM; /*!< Enable or disable the automatic bus-off management. | |
| This parameter can be set either to ENABLE or DISABLE. */ | |
| FunctionalState CAN_AWUM; /*!< Enable or disable the automatic wake-up mode. | |
| This parameter can be set either to ENABLE or DISABLE. */ | |
| FunctionalState CAN_NART; /*!< Enable or disable the non-automatic retransmission mode. | |
| This parameter can be set either to ENABLE or DISABLE. */ | |
| FunctionalState CAN_RFLM; /*!< Enable or disable the Receive FIFO Locked mode. | |
| This parameter can be set either to ENABLE or DISABLE. */ | |
| FunctionalState CAN_TXFP; /*!< Enable or disable the transmit FIFO priority. | |
| This parameter can be set either to ENABLE or DISABLE. */ | |
| } CAN_InitTypeDef; | |
| /** | |
| * @brief CAN filter init structure definition | |
| */ | |
| typedef struct | |
| { | |
| uint16_t CAN_FilterIdHigh; /*!< Specifies the filter identification number (MSBs for a 32-bit | |
| configuration, first one for a 16-bit configuration). | |
| This parameter can be a value between 0x0000 and 0xFFFF */ | |
| uint16_t CAN_FilterIdLow; /*!< Specifies the filter identification number (LSBs for a 32-bit | |
| configuration, second one for a 16-bit configuration). | |
| This parameter can be a value between 0x0000 and 0xFFFF */ | |
| uint16_t CAN_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 can be a value between 0x0000 and 0xFFFF */ | |
| uint16_t CAN_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 can be a value between 0x0000 and 0xFFFF */ | |
| uint16_t CAN_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 */ | |
| uint8_t CAN_FilterNumber; /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */ | |
| uint8_t CAN_FilterMode; /*!< Specifies the filter mode to be initialized. | |
| This parameter can be a value of @ref CAN_filter_mode */ | |
| uint8_t CAN_FilterScale; /*!< Specifies the filter scale. | |
| This parameter can be a value of @ref CAN_filter_scale */ | |
| FunctionalState CAN_FilterActivation; /*!< Enable or disable the filter. | |
| This parameter can be set either to ENABLE or DISABLE. */ | |
| } CAN_FilterInitTypeDef; | |
| /** | |
| * @brief CAN Tx message structure definition | |
| */ | |
| typedef struct | |
| { | |
| uint32_t StdId; /*!< Specifies the standard identifier. | |
| This parameter can be a value between 0 to 0x7FF. */ | |
| uint32_t ExtId; /*!< Specifies the extended identifier. | |
| This parameter can be a value between 0 to 0x1FFFFFFF. */ | |
| uint8_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 */ | |
| uint8_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 */ | |
| uint8_t DLC; /*!< Specifies the length of the frame that will be | |
| transmitted. This parameter can be a value between | |
| 0 to 8 */ | |
| uint8_t Data[8]; /*!< Contains the data to be transmitted. It ranges from 0 | |
| to 0xFF. */ | |
| } CanTxMsg; | |
| /** | |
| * @brief CAN Rx message structure definition | |
| */ | |
| typedef struct | |
| { | |
| uint32_t StdId; /*!< Specifies the standard identifier. | |
| This parameter can be a value between 0 to 0x7FF. */ | |
| uint32_t ExtId; /*!< Specifies the extended identifier. | |
| This parameter can be a value between 0 to 0x1FFFFFFF. */ | |
| uint8_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 */ | |
| uint8_t RTR; /*!< Specifies the type of frame for the received message. | |
| This parameter can be a value of | |
| @ref CAN_remote_transmission_request */ | |
| uint8_t DLC; /*!< Specifies the length of the frame that will be received. | |
| This parameter can be a value between 0 to 8 */ | |
| uint8_t Data[8]; /*!< Contains the data to be received. It ranges from 0 to | |
| 0xFF. */ | |
| uint8_t FMI; /*!< Specifies the index of the filter the message stored in | |
| the mailbox passes through. This parameter can be a | |
| value between 0 to 0xFF */ | |
| } CanRxMsg; | |
| /* Exported constants --------------------------------------------------------*/ | |
| /** @defgroup CAN_Exported_Constants | |
| * @{ | |
| */ | |
| /** @defgroup CAN_InitStatus | |
| * @{ | |
| */ | |
| #define CAN_InitStatus_Failed ((uint8_t)0x00) /*!< CAN initialization failed */ | |
| #define CAN_InitStatus_Success ((uint8_t)0x01) /*!< CAN initialization OK */ | |
| /* Legacy defines */ | |
| #define CANINITFAILED CAN_InitStatus_Failed | |
| #define CANINITOK CAN_InitStatus_Success | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_operating_mode | |
| * @{ | |
| */ | |
| #define CAN_Mode_Normal ((uint8_t)0x00) /*!< normal mode */ | |
| #define CAN_Mode_LoopBack ((uint8_t)0x01) /*!< loopback mode */ | |
| #define CAN_Mode_Silent ((uint8_t)0x02) /*!< silent mode */ | |
| #define CAN_Mode_Silent_LoopBack ((uint8_t)0x03) /*!< loopback combined with silent mode */ | |
| #define IS_CAN_MODE(MODE) (((MODE) == CAN_Mode_Normal) || \ | |
| ((MODE) == CAN_Mode_LoopBack)|| \ | |
| ((MODE) == CAN_Mode_Silent) || \ | |
| ((MODE) == CAN_Mode_Silent_LoopBack)) | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @defgroup CAN_operating_mode | |
| * @{ | |
| */ | |
| #define CAN_OperatingMode_Initialization ((uint8_t)0x00) /*!< Initialization mode */ | |
| #define CAN_OperatingMode_Normal ((uint8_t)0x01) /*!< Normal mode */ | |
| #define CAN_OperatingMode_Sleep ((uint8_t)0x02) /*!< sleep mode */ | |
| #define IS_CAN_OPERATING_MODE(MODE) (((MODE) == CAN_OperatingMode_Initialization) ||\ | |
| ((MODE) == CAN_OperatingMode_Normal)|| \ | |
| ((MODE) == CAN_OperatingMode_Sleep)) | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @defgroup CAN_operating_mode_status | |
| * @{ | |
| */ | |
| #define CAN_ModeStatus_Failed ((uint8_t)0x00) /*!< CAN entering the specific mode failed */ | |
| #define CAN_ModeStatus_Success ((uint8_t)!CAN_ModeStatus_Failed) /*!< CAN entering the specific mode Succeed */ | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_synchronisation_jump_width | |
| * @{ | |
| */ | |
| #define CAN_SJW_1tq ((uint8_t)0x00) /*!< 1 time quantum */ | |
| #define CAN_SJW_2tq ((uint8_t)0x01) /*!< 2 time quantum */ | |
| #define CAN_SJW_3tq ((uint8_t)0x02) /*!< 3 time quantum */ | |
| #define CAN_SJW_4tq ((uint8_t)0x03) /*!< 4 time quantum */ | |
| #define IS_CAN_SJW(SJW) (((SJW) == CAN_SJW_1tq) || ((SJW) == CAN_SJW_2tq)|| \ | |
| ((SJW) == CAN_SJW_3tq) || ((SJW) == CAN_SJW_4tq)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_time_quantum_in_bit_segment_1 | |
| * @{ | |
| */ | |
| #define CAN_BS1_1tq ((uint8_t)0x00) /*!< 1 time quantum */ | |
| #define CAN_BS1_2tq ((uint8_t)0x01) /*!< 2 time quantum */ | |
| #define CAN_BS1_3tq ((uint8_t)0x02) /*!< 3 time quantum */ | |
| #define CAN_BS1_4tq ((uint8_t)0x03) /*!< 4 time quantum */ | |
| #define CAN_BS1_5tq ((uint8_t)0x04) /*!< 5 time quantum */ | |
| #define CAN_BS1_6tq ((uint8_t)0x05) /*!< 6 time quantum */ | |
| #define CAN_BS1_7tq ((uint8_t)0x06) /*!< 7 time quantum */ | |
| #define CAN_BS1_8tq ((uint8_t)0x07) /*!< 8 time quantum */ | |
| #define CAN_BS1_9tq ((uint8_t)0x08) /*!< 9 time quantum */ | |
| #define CAN_BS1_10tq ((uint8_t)0x09) /*!< 10 time quantum */ | |
| #define CAN_BS1_11tq ((uint8_t)0x0A) /*!< 11 time quantum */ | |
| #define CAN_BS1_12tq ((uint8_t)0x0B) /*!< 12 time quantum */ | |
| #define CAN_BS1_13tq ((uint8_t)0x0C) /*!< 13 time quantum */ | |
| #define CAN_BS1_14tq ((uint8_t)0x0D) /*!< 14 time quantum */ | |
| #define CAN_BS1_15tq ((uint8_t)0x0E) /*!< 15 time quantum */ | |
| #define CAN_BS1_16tq ((uint8_t)0x0F) /*!< 16 time quantum */ | |
| #define IS_CAN_BS1(BS1) ((BS1) <= CAN_BS1_16tq) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_time_quantum_in_bit_segment_2 | |
| * @{ | |
| */ | |
| #define CAN_BS2_1tq ((uint8_t)0x00) /*!< 1 time quantum */ | |
| #define CAN_BS2_2tq ((uint8_t)0x01) /*!< 2 time quantum */ | |
| #define CAN_BS2_3tq ((uint8_t)0x02) /*!< 3 time quantum */ | |
| #define CAN_BS2_4tq ((uint8_t)0x03) /*!< 4 time quantum */ | |
| #define CAN_BS2_5tq ((uint8_t)0x04) /*!< 5 time quantum */ | |
| #define CAN_BS2_6tq ((uint8_t)0x05) /*!< 6 time quantum */ | |
| #define CAN_BS2_7tq ((uint8_t)0x06) /*!< 7 time quantum */ | |
| #define CAN_BS2_8tq ((uint8_t)0x07) /*!< 8 time quantum */ | |
| #define IS_CAN_BS2(BS2) ((BS2) <= CAN_BS2_8tq) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_clock_prescaler | |
| * @{ | |
| */ | |
| #define IS_CAN_PRESCALER(PRESCALER) (((PRESCALER) >= 1) && ((PRESCALER) <= 1024)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_filter_number | |
| * @{ | |
| */ | |
| #define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 27) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_filter_mode | |
| * @{ | |
| */ | |
| #define CAN_FilterMode_IdMask ((uint8_t)0x00) /*!< identifier/mask mode */ | |
| #define CAN_FilterMode_IdList ((uint8_t)0x01) /*!< identifier list mode */ | |
| #define IS_CAN_FILTER_MODE(MODE) (((MODE) == CAN_FilterMode_IdMask) || \ | |
| ((MODE) == CAN_FilterMode_IdList)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup 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 */ | |
| #define IS_CAN_FILTER_SCALE(SCALE) (((SCALE) == CAN_FilterScale_16bit) || \ | |
| ((SCALE) == CAN_FilterScale_32bit)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup 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 */ | |
| #define IS_CAN_FILTER_FIFO(FIFO) (((FIFO) == CAN_FilterFIFO0) || \ | |
| ((FIFO) == CAN_FilterFIFO1)) | |
| /* Legacy defines */ | |
| #define CAN_FilterFIFO0 CAN_Filter_FIFO0 | |
| #define CAN_FilterFIFO1 CAN_Filter_FIFO1 | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_Start_bank_filter_for_slave_CAN | |
| * @{ | |
| */ | |
| #define IS_CAN_BANKNUMBER(BANKNUMBER) (((BANKNUMBER) >= 1) && ((BANKNUMBER) <= 27)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_Tx | |
| * @{ | |
| */ | |
| #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)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_identifier_type | |
| * @{ | |
| */ | |
| #define CAN_Id_Standard ((uint32_t)0x00000000) /*!< Standard Id */ | |
| #define CAN_Id_Extended ((uint32_t)0x00000004) /*!< Extended Id */ | |
| #define IS_CAN_IDTYPE(IDTYPE) (((IDTYPE) == CAN_Id_Standard) || \ | |
| ((IDTYPE) == CAN_Id_Extended)) | |
| /* Legacy defines */ | |
| #define CAN_ID_STD CAN_Id_Standard | |
| #define CAN_ID_EXT CAN_Id_Extended | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_remote_transmission_request | |
| * @{ | |
| */ | |
| #define CAN_RTR_Data ((uint32_t)0x00000000) /*!< Data frame */ | |
| #define CAN_RTR_Remote ((uint32_t)0x00000002) /*!< Remote frame */ | |
| #define IS_CAN_RTR(RTR) (((RTR) == CAN_RTR_Data) || ((RTR) == CAN_RTR_Remote)) | |
| /* Legacy defines */ | |
| #define CAN_RTR_DATA CAN_RTR_Data | |
| #define CAN_RTR_REMOTE CAN_RTR_Remote | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_transmit_constants | |
| * @{ | |
| */ | |
| #define CAN_TxStatus_Failed ((uint8_t)0x00)/*!< CAN transmission failed */ | |
| #define CAN_TxStatus_Ok ((uint8_t)0x01) /*!< CAN transmission succeeded */ | |
| #define CAN_TxStatus_Pending ((uint8_t)0x02) /*!< CAN transmission pending */ | |
| #define CAN_TxStatus_NoMailBox ((uint8_t)0x04) /*!< CAN cell did not provide | |
| an empty mailbox */ | |
| /* Legacy defines */ | |
| #define CANTXFAILED CAN_TxStatus_Failed | |
| #define CANTXOK CAN_TxStatus_Ok | |
| #define CANTXPENDING CAN_TxStatus_Pending | |
| #define CAN_NO_MB CAN_TxStatus_NoMailBox | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_receive_FIFO_number_constants | |
| * @{ | |
| */ | |
| #define CAN_FIFO0 ((uint8_t)0x00) /*!< CAN FIFO 0 used to receive */ | |
| #define CAN_FIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used to receive */ | |
| #define IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) || ((FIFO) == CAN_FIFO1)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_sleep_constants | |
| * @{ | |
| */ | |
| #define CAN_Sleep_Failed ((uint8_t)0x00) /*!< CAN did not enter the sleep mode */ | |
| #define CAN_Sleep_Ok ((uint8_t)0x01) /*!< CAN entered the sleep mode */ | |
| /* Legacy defines */ | |
| #define CANSLEEPFAILED CAN_Sleep_Failed | |
| #define CANSLEEPOK CAN_Sleep_Ok | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_wake_up_constants | |
| * @{ | |
| */ | |
| #define CAN_WakeUp_Failed ((uint8_t)0x00) /*!< CAN did not leave the sleep mode */ | |
| #define CAN_WakeUp_Ok ((uint8_t)0x01) /*!< CAN leaved the sleep mode */ | |
| /* Legacy defines */ | |
| #define CANWAKEUPFAILED CAN_WakeUp_Failed | |
| #define CANWAKEUPOK CAN_WakeUp_Ok | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @defgroup CAN_Error_Code_constants | |
| * @{ | |
| */ | |
| #define CAN_ErrorCode_NoErr ((uint8_t)0x00) /*!< No Error */ | |
| #define CAN_ErrorCode_StuffErr ((uint8_t)0x10) /*!< Stuff Error */ | |
| #define CAN_ErrorCode_FormErr ((uint8_t)0x20) /*!< Form Error */ | |
| #define CAN_ErrorCode_ACKErr ((uint8_t)0x30) /*!< Acknowledgment Error */ | |
| #define CAN_ErrorCode_BitRecessiveErr ((uint8_t)0x40) /*!< Bit Recessive Error */ | |
| #define CAN_ErrorCode_BitDominantErr ((uint8_t)0x50) /*!< Bit Dominant Error */ | |
| #define CAN_ErrorCode_CRCErr ((uint8_t)0x60) /*!< CRC Error */ | |
| #define CAN_ErrorCode_SoftwareSetErr ((uint8_t)0x70) /*!< Software Set Error */ | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup 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)0x38000001) /*!< Request MailBox0 Flag */ | |
| #define CAN_FLAG_RQCP1 ((uint32_t)0x38000100) /*!< Request MailBox1 Flag */ | |
| #define CAN_FLAG_RQCP2 ((uint32_t)0x38010000) /*!< Request MailBox2 Flag */ | |
| /* Receive Flags */ | |
| #define CAN_FLAG_FMP0 ((uint32_t)0x12000003) /*!< FIFO 0 Message Pending Flag */ | |
| #define CAN_FLAG_FF0 ((uint32_t)0x32000008) /*!< FIFO 0 Full Flag */ | |
| #define CAN_FLAG_FOV0 ((uint32_t)0x32000010) /*!< FIFO 0 Overrun Flag */ | |
| #define CAN_FLAG_FMP1 ((uint32_t)0x14000003) /*!< FIFO 1 Message Pending Flag */ | |
| #define CAN_FLAG_FF1 ((uint32_t)0x34000008) /*!< FIFO 1 Full Flag */ | |
| #define CAN_FLAG_FOV1 ((uint32_t)0x34000010) /*!< FIFO 1 Overrun Flag */ | |
| /* Operating Mode Flags */ | |
| #define CAN_FLAG_WKU ((uint32_t)0x31000008) /*!< Wake up Flag */ | |
| #define CAN_FLAG_SLAK ((uint32_t)0x31000012) /*!< 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)0x10F00001) /*!< Error Warning Flag */ | |
| #define CAN_FLAG_EPV ((uint32_t)0x10F00002) /*!< Error Passive Flag */ | |
| #define CAN_FLAG_BOF ((uint32_t)0x10F00004) /*!< Bus-Off Flag */ | |
| #define CAN_FLAG_LEC ((uint32_t)0x30F00070) /*!< Last error code Flag */ | |
| #define IS_CAN_GET_FLAG(FLAG) (((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_BOF) || \ | |
| ((FLAG) == CAN_FLAG_EPV) || ((FLAG) == CAN_FLAG_EWG) || \ | |
| ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_FOV0) || \ | |
| ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FMP0) || \ | |
| ((FLAG) == CAN_FLAG_FOV1) || ((FLAG) == CAN_FLAG_FF1) || \ | |
| ((FLAG) == CAN_FLAG_FMP1) || ((FLAG) == CAN_FLAG_RQCP2) || \ | |
| ((FLAG) == CAN_FLAG_RQCP1)|| ((FLAG) == CAN_FLAG_RQCP0) || \ | |
| ((FLAG) == CAN_FLAG_SLAK )) | |
| #define IS_CAN_CLEAR_FLAG(FLAG)(((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_RQCP2) || \ | |
| ((FLAG) == CAN_FLAG_RQCP1) || ((FLAG) == CAN_FLAG_RQCP0) || \ | |
| ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FOV0) ||\ | |
| ((FLAG) == CAN_FLAG_FF1) || ((FLAG) == CAN_FLAG_FOV1) || \ | |
| ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_SLAK)) | |
| /** | |
| * @} | |
| */ | |
| /** @defgroup CAN_interrupts | |
| * @{ | |
| */ | |
| #define CAN_IT_TME ((uint32_t)0x00000001) /*!< Transmit mailbox empty Interrupt*/ | |
| /* Receive Interrupts */ | |
| #define CAN_IT_FMP0 ((uint32_t)0x00000002) /*!< FIFO 0 message pending Interrupt*/ | |
| #define CAN_IT_FF0 ((uint32_t)0x00000004) /*!< FIFO 0 full Interrupt*/ | |
| #define CAN_IT_FOV0 ((uint32_t)0x00000008) /*!< FIFO 0 overrun Interrupt*/ | |
| #define CAN_IT_FMP1 ((uint32_t)0x00000010) /*!< FIFO 1 message pending Interrupt*/ | |
| #define CAN_IT_FF1 ((uint32_t)0x00000020) /*!< FIFO 1 full Interrupt*/ | |
| #define CAN_IT_FOV1 ((uint32_t)0x00000040) /*!< FIFO 1 overrun Interrupt*/ | |
| /* Operating Mode Interrupts */ | |
| #define CAN_IT_WKU ((uint32_t)0x00010000) /*!< Wake-up Interrupt*/ | |
| #define CAN_IT_SLK ((uint32_t)0x00020000) /*!< Sleep acknowledge Interrupt*/ | |
| /* Error Interrupts */ | |
| #define CAN_IT_EWG ((uint32_t)0x00000100) /*!< Error warning Interrupt*/ | |
| #define CAN_IT_EPV ((uint32_t)0x00000200) /*!< Error passive Interrupt*/ | |
| #define CAN_IT_BOF ((uint32_t)0x00000400) /*!< Bus-off Interrupt*/ | |
| #define CAN_IT_LEC ((uint32_t)0x00000800) /*!< Last error code Interrupt*/ | |
| #define CAN_IT_ERR ((uint32_t)0x00008000) /*!< Error Interrupt*/ | |
| /* Flags named as Interrupts : kept only for FW compatibility */ | |
| #define CAN_IT_RQCP0 CAN_IT_TME | |
| #define CAN_IT_RQCP1 CAN_IT_TME | |
| #define CAN_IT_RQCP2 CAN_IT_TME | |
| #define IS_CAN_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FMP0) ||\ | |
| ((IT) == CAN_IT_FF0) || ((IT) == CAN_IT_FOV0) ||\ | |
| ((IT) == CAN_IT_FMP1) || ((IT) == CAN_IT_FF1) ||\ | |
| ((IT) == CAN_IT_FOV1) || ((IT) == CAN_IT_EWG) ||\ | |
| ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\ | |
| ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\ | |
| ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK)) | |
| #define IS_CAN_CLEAR_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FF0) ||\ | |
| ((IT) == CAN_IT_FOV0)|| ((IT) == CAN_IT_FF1) ||\ | |
| ((IT) == CAN_IT_FOV1)|| ((IT) == CAN_IT_EWG) ||\ | |
| ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\ | |
| ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\ | |
| ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK)) | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @} | |
| */ | |
| /* Exported macro ------------------------------------------------------------*/ | |
| /* Exported functions --------------------------------------------------------*/ | |
| /* Function used to set the CAN configuration to the default reset state *****/ | |
| void CAN_DeInit(CAN_TypeDef* CANx); | |
| /* Initialization and Configuration functions *********************************/ | |
| uint8_t CAN_Init(CAN_TypeDef* CANx, CAN_InitTypeDef* CAN_InitStruct); | |
| void CAN_FilterInit(CAN_FilterInitTypeDef* CAN_FilterInitStruct); | |
| void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct); | |
| void CAN_SlaveStartBank(uint8_t CAN_BankNumber); | |
| void CAN_DBGFreeze(CAN_TypeDef* CANx, FunctionalState NewState); | |
| void CAN_TTComModeCmd(CAN_TypeDef* CANx, FunctionalState NewState); | |
| /* CAN Frames Transmission functions ******************************************/ | |
| uint8_t CAN_Transmit(CAN_TypeDef* CANx, CanTxMsg* TxMessage); | |
| uint8_t CAN_TransmitStatus(CAN_TypeDef* CANx, uint8_t TransmitMailbox); | |
| void CAN_CancelTransmit(CAN_TypeDef* CANx, uint8_t Mailbox); | |
| /* CAN Frames Reception functions *********************************************/ | |
| void CAN_Receive(CAN_TypeDef* CANx, uint8_t FIFONumber, CanRxMsg* RxMessage); | |
| void CAN_FIFORelease(CAN_TypeDef* CANx, uint8_t FIFONumber); | |
| uint8_t CAN_MessagePending(CAN_TypeDef* CANx, uint8_t FIFONumber); | |
| /* Operation modes functions **************************************************/ | |
| uint8_t CAN_OperatingModeRequest(CAN_TypeDef* CANx, uint8_t CAN_OperatingMode); | |
| uint8_t CAN_Sleep(CAN_TypeDef* CANx); | |
| uint8_t CAN_WakeUp(CAN_TypeDef* CANx); | |
| /* CAN Bus Error management functions *****************************************/ | |
| uint8_t CAN_GetLastErrorCode(CAN_TypeDef* CANx); | |
| uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef* CANx); | |
| uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef* CANx); | |
| /* Interrupts and flags management functions **********************************/ | |
| void CAN_ITConfig(CAN_TypeDef* CANx, uint32_t CAN_IT, FunctionalState NewState); | |
| FlagStatus CAN_GetFlagStatus(CAN_TypeDef* CANx, uint32_t CAN_FLAG); | |
| void CAN_ClearFlag(CAN_TypeDef* CANx, uint32_t CAN_FLAG); | |
| ITStatus CAN_GetITStatus(CAN_TypeDef* CANx, uint32_t CAN_IT); | |
| void CAN_ClearITPendingBit(CAN_TypeDef* CANx, uint32_t CAN_IT); | |
| #ifdef __cplusplus | |
| } | |
| #endif | |
| #endif /* __STM32F4xx_CAN_H */ | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @} | |
| */ | |
| /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |