2 ******************************************************************************
3 * @file stm32f4xx_can.h
4 * @author MCD Application Team
7 * @brief This file contains all the functions prototypes for the CAN firmware
9 ******************************************************************************
12 * <h2><center>© COPYRIGHT 2016 STMicroelectronics</center></h2>
14 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
15 * You may not use this file except in compliance with the License.
16 * You may obtain a copy of the License at:
18 * http://www.st.com/software_license_agreement_liberty_v2
20 * Unless required by applicable law or agreed to in writing, software
21 * distributed under the License is distributed on an "AS IS" BASIS,
22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
23 * See the License for the specific language governing permissions and
24 * limitations under the License.
26 ******************************************************************************
29 /* Define to prevent recursive inclusion -------------------------------------*/
30 #ifndef __STM32F4xx_CAN_H
31 #define __STM32F4xx_CAN_H
37 /* Includes ------------------------------------------------------------------*/
38 #include "stm32f4xx.h"
40 /** @addtogroup STM32F4xx_StdPeriph_Driver
48 /* Exported types ------------------------------------------------------------*/
50 #define IS_CAN_ALL_PERIPH(PERIPH) (((PERIPH) == CAN1) || \
54 * @brief CAN init structure definition
58 uint16_t CAN_Prescaler
; /*!< Specifies the length of a time quantum.
59 It ranges from 1 to 1024. */
61 uint8_t CAN_Mode
; /*!< Specifies the CAN operating mode.
62 This parameter can be a value of @ref CAN_operating_mode */
64 uint8_t CAN_SJW
; /*!< Specifies the maximum number of time quanta
65 the CAN hardware is allowed to lengthen or
66 shorten a bit to perform resynchronization.
67 This parameter can be a value of @ref CAN_synchronisation_jump_width */
69 uint8_t CAN_BS1
; /*!< Specifies the number of time quanta in Bit
70 Segment 1. This parameter can be a value of
71 @ref CAN_time_quantum_in_bit_segment_1 */
73 uint8_t CAN_BS2
; /*!< Specifies the number of time quanta in Bit Segment 2.
74 This parameter can be a value of @ref CAN_time_quantum_in_bit_segment_2 */
76 FunctionalState CAN_TTCM
; /*!< Enable or disable the time triggered communication mode.
77 This parameter can be set either to ENABLE or DISABLE. */
79 FunctionalState CAN_ABOM
; /*!< Enable or disable the automatic bus-off management.
80 This parameter can be set either to ENABLE or DISABLE. */
82 FunctionalState CAN_AWUM
; /*!< Enable or disable the automatic wake-up mode.
83 This parameter can be set either to ENABLE or DISABLE. */
85 FunctionalState CAN_NART
; /*!< Enable or disable the non-automatic retransmission mode.
86 This parameter can be set either to ENABLE or DISABLE. */
88 FunctionalState CAN_RFLM
; /*!< Enable or disable the Receive FIFO Locked mode.
89 This parameter can be set either to ENABLE or DISABLE. */
91 FunctionalState CAN_TXFP
; /*!< Enable or disable the transmit FIFO priority.
92 This parameter can be set either to ENABLE or DISABLE. */
96 * @brief CAN filter init structure definition
100 uint16_t CAN_FilterIdHigh
; /*!< Specifies the filter identification number (MSBs for a 32-bit
101 configuration, first one for a 16-bit configuration).
102 This parameter can be a value between 0x0000 and 0xFFFF */
104 uint16_t CAN_FilterIdLow
; /*!< Specifies the filter identification number (LSBs for a 32-bit
105 configuration, second one for a 16-bit configuration).
106 This parameter can be a value between 0x0000 and 0xFFFF */
108 uint16_t CAN_FilterMaskIdHigh
; /*!< Specifies the filter mask number or identification number,
109 according to the mode (MSBs for a 32-bit configuration,
110 first one for a 16-bit configuration).
111 This parameter can be a value between 0x0000 and 0xFFFF */
113 uint16_t CAN_FilterMaskIdLow
; /*!< Specifies the filter mask number or identification number,
114 according to the mode (LSBs for a 32-bit configuration,
115 second one for a 16-bit configuration).
116 This parameter can be a value between 0x0000 and 0xFFFF */
118 uint16_t CAN_FilterFIFOAssignment
; /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter.
119 This parameter can be a value of @ref CAN_filter_FIFO */
121 uint8_t CAN_FilterNumber
; /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */
123 uint8_t CAN_FilterMode
; /*!< Specifies the filter mode to be initialized.
124 This parameter can be a value of @ref CAN_filter_mode */
126 uint8_t CAN_FilterScale
; /*!< Specifies the filter scale.
127 This parameter can be a value of @ref CAN_filter_scale */
129 FunctionalState CAN_FilterActivation
; /*!< Enable or disable the filter.
130 This parameter can be set either to ENABLE or DISABLE. */
131 } CAN_FilterInitTypeDef
;
134 * @brief CAN Tx message structure definition
138 uint32_t StdId
; /*!< Specifies the standard identifier.
139 This parameter can be a value between 0 to 0x7FF. */
141 uint32_t ExtId
; /*!< Specifies the extended identifier.
142 This parameter can be a value between 0 to 0x1FFFFFFF. */
144 uint8_t IDE
; /*!< Specifies the type of identifier for the message that
145 will be transmitted. This parameter can be a value
146 of @ref CAN_identifier_type */
148 uint8_t RTR
; /*!< Specifies the type of frame for the message that will
149 be transmitted. This parameter can be a value of
150 @ref CAN_remote_transmission_request */
152 uint8_t DLC
; /*!< Specifies the length of the frame that will be
153 transmitted. This parameter can be a value between
156 uint8_t Data
[8]; /*!< Contains the data to be transmitted. It ranges from 0
161 * @brief CAN Rx message structure definition
165 uint32_t StdId
; /*!< Specifies the standard identifier.
166 This parameter can be a value between 0 to 0x7FF. */
168 uint32_t ExtId
; /*!< Specifies the extended identifier.
169 This parameter can be a value between 0 to 0x1FFFFFFF. */
171 uint8_t IDE
; /*!< Specifies the type of identifier for the message that
172 will be received. This parameter can be a value of
173 @ref CAN_identifier_type */
175 uint8_t RTR
; /*!< Specifies the type of frame for the received message.
176 This parameter can be a value of
177 @ref CAN_remote_transmission_request */
179 uint8_t DLC
; /*!< Specifies the length of the frame that will be received.
180 This parameter can be a value between 0 to 8 */
182 uint8_t Data
[8]; /*!< Contains the data to be received. It ranges from 0 to
185 uint8_t FMI
; /*!< Specifies the index of the filter the message stored in
186 the mailbox passes through. This parameter can be a
187 value between 0 to 0xFF */
190 /* Exported constants --------------------------------------------------------*/
192 /** @defgroup CAN_Exported_Constants
196 /** @defgroup CAN_InitStatus
200 #define CAN_InitStatus_Failed ((uint8_t)0x00) /*!< CAN initialization failed */
201 #define CAN_InitStatus_Success ((uint8_t)0x01) /*!< CAN initialization OK */
205 #define CANINITFAILED CAN_InitStatus_Failed
206 #define CANINITOK CAN_InitStatus_Success
211 /** @defgroup CAN_operating_mode
215 #define CAN_Mode_Normal ((uint8_t)0x00) /*!< normal mode */
216 #define CAN_Mode_LoopBack ((uint8_t)0x01) /*!< loopback mode */
217 #define CAN_Mode_Silent ((uint8_t)0x02) /*!< silent mode */
218 #define CAN_Mode_Silent_LoopBack ((uint8_t)0x03) /*!< loopback combined with silent mode */
220 #define IS_CAN_MODE(MODE) (((MODE) == CAN_Mode_Normal) || \
221 ((MODE) == CAN_Mode_LoopBack)|| \
222 ((MODE) == CAN_Mode_Silent) || \
223 ((MODE) == CAN_Mode_Silent_LoopBack))
230 * @defgroup CAN_operating_mode
233 #define CAN_OperatingMode_Initialization ((uint8_t)0x00) /*!< Initialization mode */
234 #define CAN_OperatingMode_Normal ((uint8_t)0x01) /*!< Normal mode */
235 #define CAN_OperatingMode_Sleep ((uint8_t)0x02) /*!< sleep mode */
238 #define IS_CAN_OPERATING_MODE(MODE) (((MODE) == CAN_OperatingMode_Initialization) ||\
239 ((MODE) == CAN_OperatingMode_Normal)|| \
240 ((MODE) == CAN_OperatingMode_Sleep))
246 * @defgroup CAN_operating_mode_status
250 #define CAN_ModeStatus_Failed ((uint8_t)0x00) /*!< CAN entering the specific mode failed */
251 #define CAN_ModeStatus_Success ((uint8_t)!CAN_ModeStatus_Failed) /*!< CAN entering the specific mode Succeed */
256 /** @defgroup CAN_synchronisation_jump_width
259 #define CAN_SJW_1tq ((uint8_t)0x00) /*!< 1 time quantum */
260 #define CAN_SJW_2tq ((uint8_t)0x01) /*!< 2 time quantum */
261 #define CAN_SJW_3tq ((uint8_t)0x02) /*!< 3 time quantum */
262 #define CAN_SJW_4tq ((uint8_t)0x03) /*!< 4 time quantum */
264 #define IS_CAN_SJW(SJW) (((SJW) == CAN_SJW_1tq) || ((SJW) == CAN_SJW_2tq)|| \
265 ((SJW) == CAN_SJW_3tq) || ((SJW) == CAN_SJW_4tq))
270 /** @defgroup CAN_time_quantum_in_bit_segment_1
273 #define CAN_BS1_1tq ((uint8_t)0x00) /*!< 1 time quantum */
274 #define CAN_BS1_2tq ((uint8_t)0x01) /*!< 2 time quantum */
275 #define CAN_BS1_3tq ((uint8_t)0x02) /*!< 3 time quantum */
276 #define CAN_BS1_4tq ((uint8_t)0x03) /*!< 4 time quantum */
277 #define CAN_BS1_5tq ((uint8_t)0x04) /*!< 5 time quantum */
278 #define CAN_BS1_6tq ((uint8_t)0x05) /*!< 6 time quantum */
279 #define CAN_BS1_7tq ((uint8_t)0x06) /*!< 7 time quantum */
280 #define CAN_BS1_8tq ((uint8_t)0x07) /*!< 8 time quantum */
281 #define CAN_BS1_9tq ((uint8_t)0x08) /*!< 9 time quantum */
282 #define CAN_BS1_10tq ((uint8_t)0x09) /*!< 10 time quantum */
283 #define CAN_BS1_11tq ((uint8_t)0x0A) /*!< 11 time quantum */
284 #define CAN_BS1_12tq ((uint8_t)0x0B) /*!< 12 time quantum */
285 #define CAN_BS1_13tq ((uint8_t)0x0C) /*!< 13 time quantum */
286 #define CAN_BS1_14tq ((uint8_t)0x0D) /*!< 14 time quantum */
287 #define CAN_BS1_15tq ((uint8_t)0x0E) /*!< 15 time quantum */
288 #define CAN_BS1_16tq ((uint8_t)0x0F) /*!< 16 time quantum */
290 #define IS_CAN_BS1(BS1) ((BS1) <= CAN_BS1_16tq)
295 /** @defgroup CAN_time_quantum_in_bit_segment_2
298 #define CAN_BS2_1tq ((uint8_t)0x00) /*!< 1 time quantum */
299 #define CAN_BS2_2tq ((uint8_t)0x01) /*!< 2 time quantum */
300 #define CAN_BS2_3tq ((uint8_t)0x02) /*!< 3 time quantum */
301 #define CAN_BS2_4tq ((uint8_t)0x03) /*!< 4 time quantum */
302 #define CAN_BS2_5tq ((uint8_t)0x04) /*!< 5 time quantum */
303 #define CAN_BS2_6tq ((uint8_t)0x05) /*!< 6 time quantum */
304 #define CAN_BS2_7tq ((uint8_t)0x06) /*!< 7 time quantum */
305 #define CAN_BS2_8tq ((uint8_t)0x07) /*!< 8 time quantum */
307 #define IS_CAN_BS2(BS2) ((BS2) <= CAN_BS2_8tq)
312 /** @defgroup CAN_clock_prescaler
315 #define IS_CAN_PRESCALER(PRESCALER) (((PRESCALER) >= 1) && ((PRESCALER) <= 1024))
320 /** @defgroup CAN_filter_number
323 #define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 27)
328 /** @defgroup CAN_filter_mode
331 #define CAN_FilterMode_IdMask ((uint8_t)0x00) /*!< identifier/mask mode */
332 #define CAN_FilterMode_IdList ((uint8_t)0x01) /*!< identifier list mode */
334 #define IS_CAN_FILTER_MODE(MODE) (((MODE) == CAN_FilterMode_IdMask) || \
335 ((MODE) == CAN_FilterMode_IdList))
340 /** @defgroup CAN_filter_scale
343 #define CAN_FilterScale_16bit ((uint8_t)0x00) /*!< Two 16-bit filters */
344 #define CAN_FilterScale_32bit ((uint8_t)0x01) /*!< One 32-bit filter */
346 #define IS_CAN_FILTER_SCALE(SCALE) (((SCALE) == CAN_FilterScale_16bit) || \
347 ((SCALE) == CAN_FilterScale_32bit))
352 /** @defgroup CAN_filter_FIFO
355 #define CAN_Filter_FIFO0 ((uint8_t)0x00) /*!< Filter FIFO 0 assignment for filter x */
356 #define CAN_Filter_FIFO1 ((uint8_t)0x01) /*!< Filter FIFO 1 assignment for filter x */
357 #define IS_CAN_FILTER_FIFO(FIFO) (((FIFO) == CAN_FilterFIFO0) || \
358 ((FIFO) == CAN_FilterFIFO1))
361 #define CAN_FilterFIFO0 CAN_Filter_FIFO0
362 #define CAN_FilterFIFO1 CAN_Filter_FIFO1
367 /** @defgroup CAN_Start_bank_filter_for_slave_CAN
370 #define IS_CAN_BANKNUMBER(BANKNUMBER) (((BANKNUMBER) >= 1) && ((BANKNUMBER) <= 27))
378 #define IS_CAN_TRANSMITMAILBOX(TRANSMITMAILBOX) ((TRANSMITMAILBOX) <= ((uint8_t)0x02))
379 #define IS_CAN_STDID(STDID) ((STDID) <= ((uint32_t)0x7FF))
380 #define IS_CAN_EXTID(EXTID) ((EXTID) <= ((uint32_t)0x1FFFFFFF))
381 #define IS_CAN_DLC(DLC) ((DLC) <= ((uint8_t)0x08))
386 /** @defgroup CAN_identifier_type
389 #define CAN_Id_Standard ((uint32_t)0x00000000) /*!< Standard Id */
390 #define CAN_Id_Extended ((uint32_t)0x00000004) /*!< Extended Id */
391 #define IS_CAN_IDTYPE(IDTYPE) (((IDTYPE) == CAN_Id_Standard) || \
392 ((IDTYPE) == CAN_Id_Extended))
395 #define CAN_ID_STD CAN_Id_Standard
396 #define CAN_ID_EXT CAN_Id_Extended
401 /** @defgroup CAN_remote_transmission_request
404 #define CAN_RTR_Data ((uint32_t)0x00000000) /*!< Data frame */
405 #define CAN_RTR_Remote ((uint32_t)0x00000002) /*!< Remote frame */
406 #define IS_CAN_RTR(RTR) (((RTR) == CAN_RTR_Data) || ((RTR) == CAN_RTR_Remote))
409 #define CAN_RTR_DATA CAN_RTR_Data
410 #define CAN_RTR_REMOTE CAN_RTR_Remote
415 /** @defgroup CAN_transmit_constants
418 #define CAN_TxStatus_Failed ((uint8_t)0x00)/*!< CAN transmission failed */
419 #define CAN_TxStatus_Ok ((uint8_t)0x01) /*!< CAN transmission succeeded */
420 #define CAN_TxStatus_Pending ((uint8_t)0x02) /*!< CAN transmission pending */
421 #define CAN_TxStatus_NoMailBox ((uint8_t)0x04) /*!< CAN cell did not provide
424 #define CANTXFAILED CAN_TxStatus_Failed
425 #define CANTXOK CAN_TxStatus_Ok
426 #define CANTXPENDING CAN_TxStatus_Pending
427 #define CAN_NO_MB CAN_TxStatus_NoMailBox
432 /** @defgroup CAN_receive_FIFO_number_constants
435 #define CAN_FIFO0 ((uint8_t)0x00) /*!< CAN FIFO 0 used to receive */
436 #define CAN_FIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used to receive */
438 #define IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) || ((FIFO) == CAN_FIFO1))
443 /** @defgroup CAN_sleep_constants
446 #define CAN_Sleep_Failed ((uint8_t)0x00) /*!< CAN did not enter the sleep mode */
447 #define CAN_Sleep_Ok ((uint8_t)0x01) /*!< CAN entered the sleep mode */
450 #define CANSLEEPFAILED CAN_Sleep_Failed
451 #define CANSLEEPOK CAN_Sleep_Ok
456 /** @defgroup CAN_wake_up_constants
459 #define CAN_WakeUp_Failed ((uint8_t)0x00) /*!< CAN did not leave the sleep mode */
460 #define CAN_WakeUp_Ok ((uint8_t)0x01) /*!< CAN leaved the sleep mode */
463 #define CANWAKEUPFAILED CAN_WakeUp_Failed
464 #define CANWAKEUPOK CAN_WakeUp_Ok
470 * @defgroup CAN_Error_Code_constants
473 #define CAN_ErrorCode_NoErr ((uint8_t)0x00) /*!< No Error */
474 #define CAN_ErrorCode_StuffErr ((uint8_t)0x10) /*!< Stuff Error */
475 #define CAN_ErrorCode_FormErr ((uint8_t)0x20) /*!< Form Error */
476 #define CAN_ErrorCode_ACKErr ((uint8_t)0x30) /*!< Acknowledgment Error */
477 #define CAN_ErrorCode_BitRecessiveErr ((uint8_t)0x40) /*!< Bit Recessive Error */
478 #define CAN_ErrorCode_BitDominantErr ((uint8_t)0x50) /*!< Bit Dominant Error */
479 #define CAN_ErrorCode_CRCErr ((uint8_t)0x60) /*!< CRC Error */
480 #define CAN_ErrorCode_SoftwareSetErr ((uint8_t)0x70) /*!< Software Set Error */
485 /** @defgroup CAN_flags
488 /* If the flag is 0x3XXXXXXX, it means that it can be used with CAN_GetFlagStatus()
489 and CAN_ClearFlag() functions. */
490 /* If the flag is 0x1XXXXXXX, it means that it can only be used with
491 CAN_GetFlagStatus() function. */
494 #define CAN_FLAG_RQCP0 ((uint32_t)0x38000001) /*!< Request MailBox0 Flag */
495 #define CAN_FLAG_RQCP1 ((uint32_t)0x38000100) /*!< Request MailBox1 Flag */
496 #define CAN_FLAG_RQCP2 ((uint32_t)0x38010000) /*!< Request MailBox2 Flag */
499 #define CAN_FLAG_FMP0 ((uint32_t)0x12000003) /*!< FIFO 0 Message Pending Flag */
500 #define CAN_FLAG_FF0 ((uint32_t)0x32000008) /*!< FIFO 0 Full Flag */
501 #define CAN_FLAG_FOV0 ((uint32_t)0x32000010) /*!< FIFO 0 Overrun Flag */
502 #define CAN_FLAG_FMP1 ((uint32_t)0x14000003) /*!< FIFO 1 Message Pending Flag */
503 #define CAN_FLAG_FF1 ((uint32_t)0x34000008) /*!< FIFO 1 Full Flag */
504 #define CAN_FLAG_FOV1 ((uint32_t)0x34000010) /*!< FIFO 1 Overrun Flag */
506 /* Operating Mode Flags */
507 #define CAN_FLAG_WKU ((uint32_t)0x31000008) /*!< Wake up Flag */
508 #define CAN_FLAG_SLAK ((uint32_t)0x31000012) /*!< Sleep acknowledge Flag */
509 /* @note When SLAK interrupt is disabled (SLKIE=0), no polling on SLAKI is possible.
510 In this case the SLAK bit can be polled.*/
513 #define CAN_FLAG_EWG ((uint32_t)0x10F00001) /*!< Error Warning Flag */
514 #define CAN_FLAG_EPV ((uint32_t)0x10F00002) /*!< Error Passive Flag */
515 #define CAN_FLAG_BOF ((uint32_t)0x10F00004) /*!< Bus-Off Flag */
516 #define CAN_FLAG_LEC ((uint32_t)0x30F00070) /*!< Last error code Flag */
518 #define IS_CAN_GET_FLAG(FLAG) (((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_BOF) || \
519 ((FLAG) == CAN_FLAG_EPV) || ((FLAG) == CAN_FLAG_EWG) || \
520 ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_FOV0) || \
521 ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FMP0) || \
522 ((FLAG) == CAN_FLAG_FOV1) || ((FLAG) == CAN_FLAG_FF1) || \
523 ((FLAG) == CAN_FLAG_FMP1) || ((FLAG) == CAN_FLAG_RQCP2) || \
524 ((FLAG) == CAN_FLAG_RQCP1)|| ((FLAG) == CAN_FLAG_RQCP0) || \
525 ((FLAG) == CAN_FLAG_SLAK ))
527 #define IS_CAN_CLEAR_FLAG(FLAG)(((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_RQCP2) || \
528 ((FLAG) == CAN_FLAG_RQCP1) || ((FLAG) == CAN_FLAG_RQCP0) || \
529 ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FOV0) ||\
530 ((FLAG) == CAN_FLAG_FF1) || ((FLAG) == CAN_FLAG_FOV1) || \
531 ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_SLAK))
537 /** @defgroup CAN_interrupts
540 #define CAN_IT_TME ((uint32_t)0x00000001) /*!< Transmit mailbox empty Interrupt*/
542 /* Receive Interrupts */
543 #define CAN_IT_FMP0 ((uint32_t)0x00000002) /*!< FIFO 0 message pending Interrupt*/
544 #define CAN_IT_FF0 ((uint32_t)0x00000004) /*!< FIFO 0 full Interrupt*/
545 #define CAN_IT_FOV0 ((uint32_t)0x00000008) /*!< FIFO 0 overrun Interrupt*/
546 #define CAN_IT_FMP1 ((uint32_t)0x00000010) /*!< FIFO 1 message pending Interrupt*/
547 #define CAN_IT_FF1 ((uint32_t)0x00000020) /*!< FIFO 1 full Interrupt*/
548 #define CAN_IT_FOV1 ((uint32_t)0x00000040) /*!< FIFO 1 overrun Interrupt*/
550 /* Operating Mode Interrupts */
551 #define CAN_IT_WKU ((uint32_t)0x00010000) /*!< Wake-up Interrupt*/
552 #define CAN_IT_SLK ((uint32_t)0x00020000) /*!< Sleep acknowledge Interrupt*/
554 /* Error Interrupts */
555 #define CAN_IT_EWG ((uint32_t)0x00000100) /*!< Error warning Interrupt*/
556 #define CAN_IT_EPV ((uint32_t)0x00000200) /*!< Error passive Interrupt*/
557 #define CAN_IT_BOF ((uint32_t)0x00000400) /*!< Bus-off Interrupt*/
558 #define CAN_IT_LEC ((uint32_t)0x00000800) /*!< Last error code Interrupt*/
559 #define CAN_IT_ERR ((uint32_t)0x00008000) /*!< Error Interrupt*/
561 /* Flags named as Interrupts : kept only for FW compatibility */
562 #define CAN_IT_RQCP0 CAN_IT_TME
563 #define CAN_IT_RQCP1 CAN_IT_TME
564 #define CAN_IT_RQCP2 CAN_IT_TME
567 #define IS_CAN_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FMP0) ||\
568 ((IT) == CAN_IT_FF0) || ((IT) == CAN_IT_FOV0) ||\
569 ((IT) == CAN_IT_FMP1) || ((IT) == CAN_IT_FF1) ||\
570 ((IT) == CAN_IT_FOV1) || ((IT) == CAN_IT_EWG) ||\
571 ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\
572 ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\
573 ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))
575 #define IS_CAN_CLEAR_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FF0) ||\
576 ((IT) == CAN_IT_FOV0)|| ((IT) == CAN_IT_FF1) ||\
577 ((IT) == CAN_IT_FOV1)|| ((IT) == CAN_IT_EWG) ||\
578 ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) ||\
579 ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) ||\
580 ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))
589 /* Exported macro ------------------------------------------------------------*/
590 /* Exported functions --------------------------------------------------------*/
592 /* Function used to set the CAN configuration to the default reset state *****/
593 void CAN_DeInit(CAN_TypeDef
* CANx
);
595 /* Initialization and Configuration functions *********************************/
596 uint8_t CAN_Init(CAN_TypeDef
* CANx
, CAN_InitTypeDef
* CAN_InitStruct
);
597 void CAN_FilterInit(CAN_FilterInitTypeDef
* CAN_FilterInitStruct
);
598 void CAN_StructInit(CAN_InitTypeDef
* CAN_InitStruct
);
599 void CAN_SlaveStartBank(uint8_t CAN_BankNumber
);
600 void CAN_DBGFreeze(CAN_TypeDef
* CANx
, FunctionalState NewState
);
601 void CAN_TTComModeCmd(CAN_TypeDef
* CANx
, FunctionalState NewState
);
603 /* CAN Frames Transmission functions ******************************************/
604 uint8_t CAN_Transmit(CAN_TypeDef
* CANx
, CanTxMsg
* TxMessage
);
605 uint8_t CAN_TransmitStatus(CAN_TypeDef
* CANx
, uint8_t TransmitMailbox
);
606 void CAN_CancelTransmit(CAN_TypeDef
* CANx
, uint8_t Mailbox
);
608 /* CAN Frames Reception functions *********************************************/
609 void CAN_Receive(CAN_TypeDef
* CANx
, uint8_t FIFONumber
, CanRxMsg
* RxMessage
);
610 void CAN_FIFORelease(CAN_TypeDef
* CANx
, uint8_t FIFONumber
);
611 uint8_t CAN_MessagePending(CAN_TypeDef
* CANx
, uint8_t FIFONumber
);
613 /* Operation modes functions **************************************************/
614 uint8_t CAN_OperatingModeRequest(CAN_TypeDef
* CANx
, uint8_t CAN_OperatingMode
);
615 uint8_t CAN_Sleep(CAN_TypeDef
* CANx
);
616 uint8_t CAN_WakeUp(CAN_TypeDef
* CANx
);
618 /* CAN Bus Error management functions *****************************************/
619 uint8_t CAN_GetLastErrorCode(CAN_TypeDef
* CANx
);
620 uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef
* CANx
);
621 uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef
* CANx
);
623 /* Interrupts and flags management functions **********************************/
624 void CAN_ITConfig(CAN_TypeDef
* CANx
, uint32_t CAN_IT
, FunctionalState NewState
);
625 FlagStatus
CAN_GetFlagStatus(CAN_TypeDef
* CANx
, uint32_t CAN_FLAG
);
626 void CAN_ClearFlag(CAN_TypeDef
* CANx
, uint32_t CAN_FLAG
);
627 ITStatus
CAN_GetITStatus(CAN_TypeDef
* CANx
, uint32_t CAN_IT
);
628 void CAN_ClearITPendingBit(CAN_TypeDef
* CANx
, uint32_t CAN_IT
);
634 #endif /* __STM32F4xx_CAN_H */
644 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/