2022-07-13 19:56:14 +08:00
|
|
|
/*****************************************************************************
|
|
|
|
|
* Copyright (c) 2019, Nations Technologies Inc.
|
|
|
|
|
*
|
|
|
|
|
* All rights reserved.
|
|
|
|
|
* ****************************************************************************
|
|
|
|
|
*
|
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
|
* modification, are permitted provided that the following conditions are met:
|
|
|
|
|
*
|
|
|
|
|
* - Redistributions of source code must retain the above copyright notice,
|
|
|
|
|
* this list of conditions and the disclaimer below.
|
|
|
|
|
*
|
|
|
|
|
* Nations' name may not be used to endorse or promote products derived from
|
|
|
|
|
* this software without specific prior written permission.
|
|
|
|
|
*
|
|
|
|
|
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY NATIONS "AS IS" AND ANY EXPRESS OR
|
|
|
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
|
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
|
|
|
|
* DISCLAIMED. IN NO EVENT SHALL NATIONS 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.
|
|
|
|
|
* ****************************************************************************/
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @file drv_can.h
|
|
|
|
|
* @author Nations
|
|
|
|
|
* @version v1.0.0
|
|
|
|
|
*
|
|
|
|
|
* @copyright Copyright (c) 2019, Nations Technologies Inc. All rights reserved.
|
|
|
|
|
*/
|
2022-07-23 11:53:42 +08:00
|
|
|
|
2022-07-13 19:56:14 +08:00
|
|
|
#ifndef __DRV_CAN_H__
|
|
|
|
|
#define __DRV_CAN_H__
|
|
|
|
|
|
|
|
|
|
#include <rtdevice.h>
|
|
|
|
|
#include <rtthread.h>
|
|
|
|
|
#include "n32g45x_can.h"
|
|
|
|
|
|
|
|
|
|
#define CAN_BAUDRATE_1M ((uint32_t)1000)
|
|
|
|
|
#define CAN_BAUDRATE_500K ((uint32_t)500)
|
|
|
|
|
#define CAN_BAUDRATE_250K ((uint32_t)250)
|
|
|
|
|
#define CAN_BAUDRATE_125K ((uint32_t)125)
|
|
|
|
|
#define CAN_BAUDRATE_100K ((uint32_t)100)
|
|
|
|
|
#define CAN_BAUDRATE_50K ((uint32_t)50)
|
|
|
|
|
#define CAN_BAUDRATE_20K ((uint32_t)20)
|
|
|
|
|
#define CAN_BAUDRATE_10K ((uint32_t)10)
|
|
|
|
|
#define CAN_BTR_CALCULATE ((uint32_t)6000)
|
|
|
|
|
|
|
|
|
|
#define CAN_TX_MAILBOX0 (0x00000001U) /*!< Tx Mailbox 0 */
|
|
|
|
|
#define CAN_TX_MAILBOX1 (0x00000002U) /*!< Tx Mailbox 1 */
|
|
|
|
|
#define CAN_TX_MAILBOX2 (0x00000004U) /*!< Tx Mailbox 2 */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#define CAN_FILTERNUM0 ((uint8_t)0)
|
|
|
|
|
|
|
|
|
|
/* attention !!! baud calculation example: Tclk / ((ss + bs1 + bs2) * brp) 36 / ((1 + 8 + 3) * 3) = 1MHz*/
|
|
|
|
|
|
|
|
|
|
/* Default config for serial_configure structure */
|
|
|
|
|
#define RT_CAN_FILTER_CONFIG_DEFAULT \
|
|
|
|
|
{ \
|
|
|
|
|
BAUD_RATE_115200, /* 115200 bits/s */ \
|
|
|
|
|
DATA_BITS_8, /* 8 databits */ \
|
|
|
|
|
STOP_BITS_1, /* 1 stopbit */ \
|
|
|
|
|
PARITY_NONE, /* No parity */ \
|
|
|
|
|
HFC_CONTROL_NONE, /* No Hardwareflow control */ \
|
|
|
|
|
TX_RX_MODE, /* Tx_Rx mode */ \
|
|
|
|
|
RT_SERIAL_RB_BUFSZ, /* Buffer size */ \
|
|
|
|
|
0 \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
struct n32_baud_rate_tab
|
|
|
|
|
{
|
|
|
|
|
rt_uint32_t baud_rate;
|
|
|
|
|
rt_uint32_t config_data;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief CAN handle Structure definition
|
|
|
|
|
*/
|
|
|
|
|
typedef struct
|
|
|
|
|
{
|
|
|
|
|
CAN_Module *Instance; /*!< Register base address */
|
|
|
|
|
|
|
|
|
|
CAN_InitType Init; /*!< CAN required parameters */
|
|
|
|
|
|
|
|
|
|
CanTxMessage* pTxMsg; /*!< Pointer to transmit structure */
|
|
|
|
|
|
|
|
|
|
CanRxMessage* pRxMsg; /*!< Pointer to reception structure for RX FIFO0 msg */
|
|
|
|
|
|
|
|
|
|
CanRxMessage* pRx1Msg; /*!< Pointer to reception structure for RX FIFO1 msg */
|
|
|
|
|
|
|
|
|
|
uint32_t State; /*!< CAN communication state */
|
|
|
|
|
|
|
|
|
|
FlagStatus Lock; /*!< CAN locking object */
|
|
|
|
|
|
|
|
|
|
uint32_t ErrorCode; /*!< CAN Error code */
|
|
|
|
|
|
|
|
|
|
}CAN_HandleTypeDef;
|
|
|
|
|
|
|
|
|
|
/* n32 can device */
|
|
|
|
|
struct n32_can
|
|
|
|
|
{
|
|
|
|
|
char *name;
|
|
|
|
|
CAN_HandleTypeDef CanHandle;
|
|
|
|
|
CAN_FilterInitType FilterConfig;
|
|
|
|
|
struct rt_can_device device; /* inherit from can device */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
int rt_hw_can_init(void);
|
|
|
|
|
|
|
|
|
|
#endif /* __DRV_CAN_H__ */
|
