370 lines
20 KiB
C
370 lines
20 KiB
C
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/********************************** (C) COPYRIGHT *******************************
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* File Name : ch32v20x_can.h
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* Author : WCH
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* Version : V1.0.0
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* Date : 2021/06/06
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* Description : This file contains all the functions prototypes for the
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* CAN firmware library.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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#ifndef __CH32V20x_CAN_H
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#define __CH32V20x_CAN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "ch32v20x.h"
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/* CAN init structure definition */
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typedef struct
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{
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uint16_t CAN_Prescaler; /* Specifies the length of a time quantum.
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It ranges from 1 to 1024. */
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uint8_t CAN_Mode; /* Specifies the CAN operating mode.
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This parameter can be a value of
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@ref CAN_operating_mode */
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uint8_t CAN_SJW; /* Specifies the maximum number of time quanta
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the CAN hardware is allowed to lengthen or
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shorten a bit to perform resynchronization.
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This parameter can be a value of
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@ref CAN_synchronisation_jump_width */
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uint8_t CAN_BS1; /* Specifies the number of time quanta in Bit
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Segment 1. This parameter can be a value of
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@ref CAN_time_quantum_in_bit_segment_1 */
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uint8_t CAN_BS2; /* Specifies the number of time quanta in Bit
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Segment 2.
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This parameter can be a value of
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@ref CAN_time_quantum_in_bit_segment_2 */
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FunctionalState CAN_TTCM; /* Enable or disable the time triggered
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communication mode. This parameter can be set
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either to ENABLE or DISABLE. */
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FunctionalState CAN_ABOM; /* Enable or disable the automatic bus-off
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management. This parameter can be set either
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to ENABLE or DISABLE. */
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FunctionalState CAN_AWUM; /* Enable or disable the automatic wake-up mode.
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This parameter can be set either to ENABLE or
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DISABLE. */
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FunctionalState CAN_NART; /* Enable or disable the no-automatic
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retransmission mode. This parameter can be
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set either to ENABLE or DISABLE. */
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FunctionalState CAN_RFLM; /* Enable or disable the Receive FIFO Locked mode.
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This parameter can be set either to ENABLE
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or DISABLE. */
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FunctionalState CAN_TXFP; /* Enable or disable the transmit FIFO priority.
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This parameter can be set either to ENABLE
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or DISABLE. */
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} CAN_InitTypeDef;
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/* CAN filter init structure definition */
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typedef struct
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{
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uint16_t CAN_FilterIdHigh; /* Specifies the filter identification number (MSBs for a 32-bit
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configuration, first one for a 16-bit configuration).
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This parameter can be a value between 0x0000 and 0xFFFF */
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uint16_t CAN_FilterIdLow; /* Specifies the filter identification number (LSBs for a 32-bit
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configuration, second one for a 16-bit configuration).
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This parameter can be a value between 0x0000 and 0xFFFF */
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uint16_t CAN_FilterMaskIdHigh; /* Specifies the filter mask number or identification number,
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according to the mode (MSBs for a 32-bit configuration,
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first one for a 16-bit configuration).
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This parameter can be a value between 0x0000 and 0xFFFF */
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uint16_t CAN_FilterMaskIdLow; /* Specifies the filter mask number or identification number,
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according to the mode (LSBs for a 32-bit configuration,
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second one for a 16-bit configuration).
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This parameter can be a value between 0x0000 and 0xFFFF */
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uint16_t CAN_FilterFIFOAssignment; /* Specifies the FIFO (0 or 1) which will be assigned to the filter.
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This parameter can be a value of @ref CAN_filter_FIFO */
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uint8_t CAN_FilterNumber; /* Specifies the filter which will be initialized. It ranges from 0 to 13. */
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uint8_t CAN_FilterMode; /* Specifies the filter mode to be initialized.
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This parameter can be a value of @ref CAN_filter_mode */
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uint8_t CAN_FilterScale; /* Specifies the filter scale.
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This parameter can be a value of @ref CAN_filter_scale */
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FunctionalState CAN_FilterActivation; /* Enable or disable the filter.
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This parameter can be set either to ENABLE or DISABLE. */
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} CAN_FilterInitTypeDef;
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/* CAN Tx message structure definition */
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typedef struct
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{
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uint32_t StdId; /* Specifies the standard identifier.
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This parameter can be a value between 0 to 0x7FF. */
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uint32_t ExtId; /* Specifies the extended identifier.
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This parameter can be a value between 0 to 0x1FFFFFFF. */
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uint8_t IDE; /* Specifies the type of identifier for the message that
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will be transmitted. This parameter can be a value
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of @ref CAN_identifier_type */
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uint8_t RTR; /* Specifies the type of frame for the message that will
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be transmitted. This parameter can be a value of
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@ref CAN_remote_transmission_request */
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uint8_t DLC; /* Specifies the length of the frame that will be
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transmitted. This parameter can be a value between
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0 to 8 */
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uint8_t Data[8]; /* Contains the data to be transmitted. It ranges from 0
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to 0xFF. */
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} CanTxMsg;
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/* CAN Rx message structure definition */
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typedef struct
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{
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uint32_t StdId; /* Specifies the standard identifier.
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This parameter can be a value between 0 to 0x7FF. */
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uint32_t ExtId; /* Specifies the extended identifier.
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This parameter can be a value between 0 to 0x1FFFFFFF. */
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uint8_t IDE; /* Specifies the type of identifier for the message that
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will be received. This parameter can be a value of
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@ref CAN_identifier_type */
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uint8_t RTR; /* Specifies the type of frame for the received message.
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This parameter can be a value of
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@ref CAN_remote_transmission_request */
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uint8_t DLC; /* Specifies the length of the frame that will be received.
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This parameter can be a value between 0 to 8 */
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uint8_t Data[8]; /* Contains the data to be received. It ranges from 0 to
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0xFF. */
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uint8_t FMI; /* Specifies the index of the filter the message stored in
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the mailbox passes through. This parameter can be a
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value between 0 to 0xFF */
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} CanRxMsg;
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/* CAN_sleep_constants */
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#define CAN_InitStatus_Failed ((uint8_t)0x00) /* CAN initialization failed */
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#define CAN_InitStatus_Success ((uint8_t)0x01) /* CAN initialization OK */
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/* CAN_Mode */
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#define CAN_Mode_Normal ((uint8_t)0x00) /* normal mode */
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#define CAN_Mode_LoopBack ((uint8_t)0x01) /* loopback mode */
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#define CAN_Mode_Silent ((uint8_t)0x02) /* silent mode */
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#define CAN_Mode_Silent_LoopBack ((uint8_t)0x03) /* loopback combined with silent mode */
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/* CAN_Operating_Mode */
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#define CAN_OperatingMode_Initialization ((uint8_t)0x00) /* Initialization mode */
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#define CAN_OperatingMode_Normal ((uint8_t)0x01) /* Normal mode */
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#define CAN_OperatingMode_Sleep ((uint8_t)0x02) /* sleep mode */
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/* CAN_Mode_Status */
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#define CAN_ModeStatus_Failed ((uint8_t)0x00) /* CAN entering the specific mode failed */
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#define CAN_ModeStatus_Success ((uint8_t)!CAN_ModeStatus_Failed) /* CAN entering the specific mode Succeed */
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/* CAN_synchronisation_jump_width */
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#define CAN_SJW_1tq ((uint8_t)0x00) /* 1 time quantum */
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#define CAN_SJW_2tq ((uint8_t)0x01) /* 2 time quantum */
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#define CAN_SJW_3tq ((uint8_t)0x02) /* 3 time quantum */
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#define CAN_SJW_4tq ((uint8_t)0x03) /* 4 time quantum */
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/* CAN_time_quantum_in_bit_segment_1 */
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#define CAN_BS1_1tq ((uint8_t)0x00) /* 1 time quantum */
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#define CAN_BS1_2tq ((uint8_t)0x01) /* 2 time quantum */
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#define CAN_BS1_3tq ((uint8_t)0x02) /* 3 time quantum */
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#define CAN_BS1_4tq ((uint8_t)0x03) /* 4 time quantum */
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#define CAN_BS1_5tq ((uint8_t)0x04) /* 5 time quantum */
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#define CAN_BS1_6tq ((uint8_t)0x05) /* 6 time quantum */
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#define CAN_BS1_7tq ((uint8_t)0x06) /* 7 time quantum */
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#define CAN_BS1_8tq ((uint8_t)0x07) /* 8 time quantum */
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#define CAN_BS1_9tq ((uint8_t)0x08) /* 9 time quantum */
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#define CAN_BS1_10tq ((uint8_t)0x09) /* 10 time quantum */
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#define CAN_BS1_11tq ((uint8_t)0x0A) /* 11 time quantum */
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#define CAN_BS1_12tq ((uint8_t)0x0B) /* 12 time quantum */
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#define CAN_BS1_13tq ((uint8_t)0x0C) /* 13 time quantum */
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#define CAN_BS1_14tq ((uint8_t)0x0D) /* 14 time quantum */
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#define CAN_BS1_15tq ((uint8_t)0x0E) /* 15 time quantum */
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#define CAN_BS1_16tq ((uint8_t)0x0F) /* 16 time quantum */
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/* CAN_time_quantum_in_bit_segment_2 */
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#define CAN_BS2_1tq ((uint8_t)0x00) /* 1 time quantum */
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#define CAN_BS2_2tq ((uint8_t)0x01) /* 2 time quantum */
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#define CAN_BS2_3tq ((uint8_t)0x02) /* 3 time quantum */
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#define CAN_BS2_4tq ((uint8_t)0x03) /* 4 time quantum */
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#define CAN_BS2_5tq ((uint8_t)0x04) /* 5 time quantum */
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#define CAN_BS2_6tq ((uint8_t)0x05) /* 6 time quantum */
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#define CAN_BS2_7tq ((uint8_t)0x06) /* 7 time quantum */
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#define CAN_BS2_8tq ((uint8_t)0x07) /* 8 time quantum */
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/* CAN_filter_mode */
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#define CAN_FilterMode_IdMask ((uint8_t)0x00) /* identifier/mask mode */
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#define CAN_FilterMode_IdList ((uint8_t)0x01) /* identifier list mode */
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/* CAN_filter_scale */
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#define CAN_FilterScale_16bit ((uint8_t)0x00) /* Two 16-bit filters */
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#define CAN_FilterScale_32bit ((uint8_t)0x01) /* One 32-bit filter */
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/* CAN_filter_FIFO */
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#define CAN_Filter_FIFO0 ((uint8_t)0x00) /* Filter FIFO 0 assignment for filter x */
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#define CAN_Filter_FIFO1 ((uint8_t)0x01) /* Filter FIFO 1 assignment for filter x */
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/* CAN_identifier_type */
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#define CAN_Id_Standard ((uint32_t)0x00000000) /* Standard Id */
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#define CAN_Id_Extended ((uint32_t)0x00000004) /* Extended Id */
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/* CAN_remote_transmission_request */
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#define CAN_RTR_Data ((uint32_t)0x00000000) /* Data frame */
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#define CAN_RTR_Remote ((uint32_t)0x00000002) /* Remote frame */
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/* CAN_transmit_constants */
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#define CAN_TxStatus_Failed ((uint8_t)0x00) /* CAN transmission failed */
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#define CAN_TxStatus_Ok ((uint8_t)0x01) /* CAN transmission succeeded */
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#define CAN_TxStatus_Pending ((uint8_t)0x02) /* CAN transmission pending */
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#define CAN_TxStatus_NoMailBox ((uint8_t)0x04) /* CAN cell did not provide an empty mailbox */
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/* CAN_receive_FIFO_number_constants */
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#define CAN_FIFO0 ((uint8_t)0x00) /* CAN FIFO 0 used to receive */
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#define CAN_FIFO1 ((uint8_t)0x01) /* CAN FIFO 1 used to receive */
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/* CAN_sleep_constants */
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#define CAN_Sleep_Failed ((uint8_t)0x00) /* CAN did not enter the sleep mode */
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#define CAN_Sleep_Ok ((uint8_t)0x01) /* CAN entered the sleep mode */
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/* CAN_wake_up_constants */
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#define CAN_WakeUp_Failed ((uint8_t)0x00) /* CAN did not leave the sleep mode */
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#define CAN_WakeUp_Ok ((uint8_t)0x01) /* CAN leaved the sleep mode */
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/* CAN_Error_Code_constants */
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#define CAN_ErrorCode_NoErr ((uint8_t)0x00) /* No Error */
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#define CAN_ErrorCode_StuffErr ((uint8_t)0x10) /* Stuff Error */
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#define CAN_ErrorCode_FormErr ((uint8_t)0x20) /* Form Error */
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#define CAN_ErrorCode_ACKErr ((uint8_t)0x30) /* Acknowledgment Error */
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#define CAN_ErrorCode_BitRecessiveErr ((uint8_t)0x40) /* Bit Recessive Error */
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#define CAN_ErrorCode_BitDominantErr ((uint8_t)0x50) /* Bit Dominant Error */
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#define CAN_ErrorCode_CRCErr ((uint8_t)0x60) /* CRC Error */
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#define CAN_ErrorCode_SoftwareSetErr ((uint8_t)0x70) /* Software Set Error */
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/* CAN_flags */
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/* Transmit Flags */
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/* If the flag is 0x3XXXXXXX, it means that it can be used with CAN_GetFlagStatus()
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* and CAN_ClearFlag() functions.
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* If the flag is 0x1XXXXXXX, it means that it can only be used with CAN_GetFlagStatus() function.
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*/
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#define CAN_FLAG_RQCP0 ((uint32_t)0x38000001) /* Request MailBox0 Flag */
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#define CAN_FLAG_RQCP1 ((uint32_t)0x38000100) /* Request MailBox1 Flag */
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#define CAN_FLAG_RQCP2 ((uint32_t)0x38010000) /* Request MailBox2 Flag */
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/* Receive Flags */
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#define CAN_FLAG_FMP0 ((uint32_t)0x12000003) /* FIFO 0 Message Pending Flag */
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#define CAN_FLAG_FF0 ((uint32_t)0x32000008) /* FIFO 0 Full Flag */
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#define CAN_FLAG_FOV0 ((uint32_t)0x32000010) /* FIFO 0 Overrun Flag */
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#define CAN_FLAG_FMP1 ((uint32_t)0x14000003) /* FIFO 1 Message Pending Flag */
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#define CAN_FLAG_FF1 ((uint32_t)0x34000008) /* FIFO 1 Full Flag */
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#define CAN_FLAG_FOV1 ((uint32_t)0x34000010) /* FIFO 1 Overrun Flag */
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/* Operating Mode Flags */
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#define CAN_FLAG_WKU ((uint32_t)0x31000008) /* Wake up Flag */
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#define CAN_FLAG_SLAK ((uint32_t)0x31000012) /* Sleep acknowledge Flag */
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/* Note:
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*When SLAK intterupt is disabled (SLKIE=0), no polling on SLAKI is possible.
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*In this case the SLAK bit can be polled.
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*/
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/* Error Flags */
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#define CAN_FLAG_EWG ((uint32_t)0x10F00001) /* Error Warning Flag */
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#define CAN_FLAG_EPV ((uint32_t)0x10F00002) /* Error Passive Flag */
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#define CAN_FLAG_BOF ((uint32_t)0x10F00004) /* Bus-Off Flag */
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#define CAN_FLAG_LEC ((uint32_t)0x30F00070) /* Last error code Flag */
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/* CAN_interrupts */
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#define CAN_IT_TME ((uint32_t)0x00000001) /* Transmit mailbox empty Interrupt*/
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/* Receive Interrupts */
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#define CAN_IT_FMP0 ((uint32_t)0x00000002) /* FIFO 0 message pending Interrupt*/
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#define CAN_IT_FF0 ((uint32_t)0x00000004) /* FIFO 0 full Interrupt*/
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#define CAN_IT_FOV0 ((uint32_t)0x00000008) /* FIFO 0 overrun Interrupt*/
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#define CAN_IT_FMP1 ((uint32_t)0x00000010) /* FIFO 1 message pending Interrupt*/
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#define CAN_IT_FF1 ((uint32_t)0x00000020) /* FIFO 1 full Interrupt*/
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#define CAN_IT_FOV1 ((uint32_t)0x00000040) /* FIFO 1 overrun Interrupt*/
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/* Operating Mode Interrupts */
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#define CAN_IT_WKU ((uint32_t)0x00010000) /* Wake-up Interrupt*/
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#define CAN_IT_SLK ((uint32_t)0x00020000) /* Sleep acknowledge Interrupt*/
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/* Error Interrupts */
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#define CAN_IT_EWG ((uint32_t)0x00000100) /* Error warning Interrupt*/
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#define CAN_IT_EPV ((uint32_t)0x00000200) /* Error passive Interrupt*/
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#define CAN_IT_BOF ((uint32_t)0x00000400) /* Bus-off Interrupt*/
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#define CAN_IT_LEC ((uint32_t)0x00000800) /* Last error code Interrupt*/
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#define CAN_IT_ERR ((uint32_t)0x00008000) /* Error Interrupt*/
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/* Flags named as Interrupts : kept only for FW compatibility */
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#define CAN_IT_RQCP0 CAN_IT_TME
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#define CAN_IT_RQCP1 CAN_IT_TME
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#define CAN_IT_RQCP2 CAN_IT_TME
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/* CAN_Legacy */
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#define CANINITFAILED CAN_InitStatus_Failed
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#define CANINITOK CAN_InitStatus_Success
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#define CAN_FilterFIFO0 CAN_Filter_FIFO0
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#define CAN_FilterFIFO1 CAN_Filter_FIFO1
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#define CAN_ID_STD CAN_Id_Standard
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#define CAN_ID_EXT CAN_Id_Extended
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#define CAN_RTR_DATA CAN_RTR_Data
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#define CAN_RTR_REMOTE CAN_RTR_Remote
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#define CANTXFAILE CAN_TxStatus_Failed
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#define CANTXOK CAN_TxStatus_Ok
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#define CANTXPENDING CAN_TxStatus_Pending
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#define CAN_NO_MB CAN_TxStatus_NoMailBox
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#define CANSLEEPFAILED CAN_Sleep_Failed
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#define CANSLEEPOK CAN_Sleep_Ok
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#define CANWAKEUPFAILED CAN_WakeUp_Failed
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#define CANWAKEUPOK CAN_WakeUp_Ok
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void CAN_DeInit(CAN_TypeDef *CANx);
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uint8_t CAN_Init(CAN_TypeDef *CANx, CAN_InitTypeDef *CAN_InitStruct);
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void CAN_FilterInit(CAN_FilterInitTypeDef *CAN_FilterInitStruct);
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void CAN_StructInit(CAN_InitTypeDef *CAN_InitStruct);
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void CAN_SlaveStartBank(uint8_t CAN_BankNumber);
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void CAN_DBGFreeze(CAN_TypeDef *CANx, FunctionalState NewState);
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void CAN_TTComModeCmd(CAN_TypeDef *CANx, FunctionalState NewState);
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uint8_t CAN_Transmit(CAN_TypeDef *CANx, CanTxMsg *TxMessage);
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uint8_t CAN_TransmitStatus(CAN_TypeDef *CANx, uint8_t TransmitMailbox);
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void CAN_CancelTransmit(CAN_TypeDef *CANx, uint8_t Mailbox);
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void CAN_Receive(CAN_TypeDef *CANx, uint8_t FIFONumber, CanRxMsg *RxMessage);
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void CAN_FIFORelease(CAN_TypeDef *CANx, uint8_t FIFONumber);
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uint8_t CAN_MessagePending(CAN_TypeDef *CANx, uint8_t FIFONumber);
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uint8_t CAN_OperatingModeRequest(CAN_TypeDef *CANx, uint8_t CAN_OperatingMode);
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uint8_t CAN_Sleep(CAN_TypeDef *CANx);
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uint8_t CAN_WakeUp(CAN_TypeDef *CANx);
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uint8_t CAN_GetLastErrorCode(CAN_TypeDef *CANx);
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uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef *CANx);
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uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef *CANx);
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void CAN_ITConfig(CAN_TypeDef *CANx, uint32_t CAN_IT, FunctionalState NewState);
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FlagStatus CAN_GetFlagStatus(CAN_TypeDef *CANx, uint32_t CAN_FLAG);
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void CAN_ClearFlag(CAN_TypeDef *CANx, uint32_t CAN_FLAG);
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ITStatus CAN_GetITStatus(CAN_TypeDef *CANx, uint32_t CAN_IT);
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void CAN_ClearITPendingBit(CAN_TypeDef *CANx, uint32_t CAN_IT);
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#ifdef __cplusplus
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}
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#endif
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#endif
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