blob: d3b36aa4b963c0d11c1c54e4d8a20d7310b00dd7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* Copyright (C) 2022-2024, Xiaohua Semiconductor Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-04-28 CDT first version
*/
#ifndef __DRV_CAN_H__
#define __DRV_CAN_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <board.h>
#include <rtdevice.h>
#include <rtthread.h>
/* attention !!!
* if RT_CAN_USING_CANFD is enabled, RT_CAN_CMD_SET_BITTIMING is more recommended
* than RT_CAN_CMD_SET_BAUD_FD.
* because sample point is not specified by config when using RT_CAN_CMD_SET_BAUD_FD
* but in range [CAN_SAMPLEPOINT_MIN/1000,CAN_SAMPLEPOINT_MAX/1000]
* this may not match with your application
*/
#define CAN_SAMPLEPOINT_MIN (750U)
#define CAN_SAMPLEPOINT_MAX (800U)
#define CAN_CLOCK_SRC_20M (20 * 1000 * 1000UL)
#define CAN_CLOCK_SRC_40M (40 * 1000 * 1000UL)
#define CAN_CLOCK_SRC_80M (80 * 1000 * 1000UL)
#define CANFD_ARBITRATION_BAUD_250K (250 * 1000UL)
#define CANFD_ARBITRATION_BAUD_500K (500 * 1000UL)
#define CANFD_DATA_BAUD_1M (1 * 1000 * 1000UL)
#define CANFD_DATA_BAUD_2M (2 * 1000 * 1000UL)
#define CANFD_DATA_BAUD_4M (4 * 1000 * 1000UL)
#define CANFD_DATA_BAUD_5M (5 * 1000 * 1000UL)
#define CANFD_DATA_BAUD_8M (8 * 1000 * 1000UL)
#define CAN_FRAME_CLASSIC (0x0U)
#define CAN_FRAME_ISO_FD (0x2U)
#define CAN_FRAME_NON_ISO_FD (0x4U)
/* hc32 can device */
struct can_dev_init_params
{
char *name;
rt_bool_t single_trans_mode;
};
int rt_hw_can_init(void);
#ifdef __cplusplus
}
#endif
#endif /*__DRV_CAN_H__ */
/************************** end of file ******************/
|
