[136] | 1 | /*
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| 2 | mcp_can_dfs.h
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| 3 | 2012 Copyright (c) Seeed Technology Inc. All right reserved.
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| 4 |
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| 5 | Author:Loovee
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| 6 | Contributor: Cory J. Fowler
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| 7 | 2014-1-16
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| 8 |
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| 9 | This library is free software; you can redistribute it and/or
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| 10 | modify it under the terms of the GNU Lesser General Public
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| 11 | License as published by the Free Software Foundation; either
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| 12 | version 2.1 of the License, or (at your option) any later version.
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| 13 |
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| 14 | This library is distributed in the hope that it will be useful,
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| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 17 | Lesser General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU Lesser General Public
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| 20 | License along with this library; if not, write to the Free Software
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| 21 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-
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| 22 | 1301 USA
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| 23 | */
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| 24 | #ifndef _MCP2515DFS_H_
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| 25 | #define _MCP2515DFS_H_
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| 26 |
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| 27 | #include <Arduino.h>
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| 28 | #include <SPI.h>
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| 29 | #include <inttypes.h>
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| 30 |
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| 31 | #ifndef INT32U
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| 32 | #define INT32U unsigned long
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| 33 | #endif
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| 34 |
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| 35 | #ifndef INT8U
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| 36 | #define INT8U byte
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| 37 | #endif
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| 38 |
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| 39 | // if print debug information
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| 40 | #define DEBUG_MODE 0
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| 41 |
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| 42 | #define MCP_RXB0 0
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| 43 | #define MCP_RXB1 1
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| 44 | #define MCP_TXB0 0
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| 45 | #define MCP_TXB1 1
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| 46 | #define MCP_TXB2 2
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| 47 | #define MCP_RXM0 0
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| 48 | #define MCP_RXM1 1
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| 49 | #define MCP_RXF0 0
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| 50 | #define MCP_RXF1 1
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| 51 | #define MCP_RXF2 2
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| 52 | #define MCP_RXF3 3
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| 53 | #define MCP_RXF4 4
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| 54 | #define MCP_RXF5 5
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| 55 |
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| 56 | /*
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| 57 | * Begin mt
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| 58 | */
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| 59 | #define TIMEOUTVALUE 50
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| 60 | #define MCP_SIDH 0
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| 61 | #define MCP_SIDL 1
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| 62 | #define MCP_EID8 2
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| 63 | #define MCP_EID0 3
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| 64 |
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| 65 | #define MCP_TXB_EXIDE_M 0x08 /* In TXBnSIDL */
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| 66 | #define MCP_DLC_MASK 0x0F /* 4 LSBits */
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| 67 | #define MCP_RTR_MASK 0x40 /* (1<<6) Bit 6 */
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| 68 |
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| 69 | #define MCP_RXB_RX_ANY 0x60
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| 70 | #define MCP_RXB_RX_EXT 0x40
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| 71 | #define MCP_RXB_RX_STD 0x20
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| 72 | #define MCP_RXB_RX_STDEXT 0x00
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| 73 | #define MCP_RXB_RX_MASK 0x60
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| 74 | #define MCP_RXB_BUKT_MASK (1<<2)
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| 75 |
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| 76 | /*
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| 77 | ** Bits in the TXBnCTRL registers.
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| 78 | */
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| 79 | #define MCP_TXB_TXBUFE_M 0x80
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| 80 | #define MCP_TXB_ABTF_M 0x40
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| 81 | #define MCP_TXB_MLOA_M 0x20
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| 82 | #define MCP_TXB_TXERR_M 0x10
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| 83 | #define MCP_TXB_TXREQ_M 0x08
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| 84 | #define MCP_TXB_TXIE_M 0x04
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| 85 | #define MCP_TXB_TXP10_M 0x03
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| 86 |
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| 87 | #define MCP_TXB_RTR_M 0x40 /* In TXBnDLC */
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| 88 | #define MCP_RXB_IDE_M 0x08 /* In RXBnSIDL */
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| 89 | #define MCP_RXB_RTR_M 0x40 /* In RXBnDLC */
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| 90 |
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| 91 | #define MCP_STAT_RXIF_MASK (0x03)
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| 92 | #define MCP_STAT_RX0IF (1<<0)
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| 93 | #define MCP_STAT_RX1IF (1<<1)
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| 94 |
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| 95 | #define MCP_STAT_TX0IF (1<<3)
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| 96 | #define MCP_STAT_TX1IF (1<<5)
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| 97 | #define MCP_STAT_TX2IF (1<<7)
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| 98 |
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| 99 | #define MCP_STAT_TX0REQ (1<<2)
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| 100 | #define MCP_STAT_TX1REQ (1<<4)
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| 101 | #define MCP_STAT_TX2REQ (1<<6)
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| 102 |
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| 103 | #define MCP_EFLG_RX1OVR (1<<7)
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| 104 | #define MCP_EFLG_RX0OVR (1<<6)
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| 105 | #define MCP_EFLG_TXBO (1<<5)
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| 106 | #define MCP_EFLG_TXEP (1<<4)
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| 107 | #define MCP_EFLG_RXEP (1<<3)
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| 108 | #define MCP_EFLG_TXWAR (1<<2)
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| 109 | #define MCP_EFLG_RXWAR (1<<1)
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| 110 | #define MCP_EFLG_EWARN (1<<0)
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| 111 | #define MCP_EFLG_ERRORMASK (0xF8) /* 5 MS-Bits */
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| 112 |
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| 113 |
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| 114 | /*
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| 115 | * Define MCP2515 register addresses
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| 116 | */
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| 117 |
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| 118 | #define MCP_RXF0SIDH 0x00
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| 119 | #define MCP_RXF0SIDL 0x01
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| 120 | #define MCP_RXF0EID8 0x02
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| 121 | #define MCP_RXF0EID0 0x03
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| 122 | #define MCP_RXF1SIDH 0x04
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| 123 | #define MCP_RXF1SIDL 0x05
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| 124 | #define MCP_RXF1EID8 0x06
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| 125 | #define MCP_RXF1EID0 0x07
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| 126 | #define MCP_RXF2SIDH 0x08
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| 127 | #define MCP_RXF2SIDL 0x09
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| 128 | #define MCP_RXF2EID8 0x0A
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| 129 | #define MCP_RXF2EID0 0x0B
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| 130 | #define MCP_CANSTAT 0x0E
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| 131 | #define MCP_CANCTRL 0x0F
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| 132 | #define MCP_RXF3SIDH 0x10
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| 133 | #define MCP_RXF3SIDL 0x11
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| 134 | #define MCP_RXF3EID8 0x12
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| 135 | #define MCP_RXF3EID0 0x13
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| 136 | #define MCP_RXF4SIDH 0x14
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| 137 | #define MCP_RXF4SIDL 0x15
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| 138 | #define MCP_RXF4EID8 0x16
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| 139 | #define MCP_RXF4EID0 0x17
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| 140 | #define MCP_RXF5SIDH 0x18
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| 141 | #define MCP_RXF5SIDL 0x19
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| 142 | #define MCP_RXF5EID8 0x1A
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| 143 | #define MCP_RXF5EID0 0x1B
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| 144 | #define MCP_TEC 0x1C
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| 145 | #define MCP_REC 0x1D
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| 146 | #define MCP_RXM0SIDH 0x20
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| 147 | #define MCP_RXM0SIDL 0x21
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| 148 | #define MCP_RXM0EID8 0x22
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| 149 | #define MCP_RXM0EID0 0x23
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| 150 | #define MCP_RXM1SIDH 0x24
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| 151 | #define MCP_RXM1SIDL 0x25
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| 152 | #define MCP_RXM1EID8 0x26
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| 153 | #define MCP_RXM1EID0 0x27
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| 154 | #define MCP_CNF3 0x28
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| 155 | #define MCP_CNF2 0x29
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| 156 | #define MCP_CNF1 0x2A
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| 157 | #define MCP_CANINTE 0x2B
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| 158 | #define MCP_CANINTF 0x2C
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| 159 | #define MCP_EFLG 0x2D
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| 160 | #define MCP_TXB0CTRL 0x30
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| 161 | #define MCP_TXB1CTRL 0x40
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| 162 | #define MCP_TXB2CTRL 0x50
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| 163 | #define MCP_RXB0CTRL 0x60
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| 164 | #define MCP_RXB0SIDH 0x61
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| 165 | #define MCP_RXB1CTRL 0x70
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| 166 | #define MCP_RXB1SIDH 0x71
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| 167 |
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| 168 |
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| 169 | #define MCP_TX_INT 0x1C // Enable all transmit interrup ts
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| 170 | #define MCP_TX01_INT 0x0C // Enable TXB0 and TXB1 interru pts
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| 171 | #define MCP_RX_INT 0x03 // Enable receive interrupts
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| 172 | #define MCP_NO_INT 0x00 // Disable all interrupts
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| 173 |
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| 174 | #define MCP_TX01_MASK 0x14
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| 175 | #define MCP_TX_MASK 0x54
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| 176 |
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| 177 | /*
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| 178 | * Define SPI Instruction Set
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| 179 | */
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| 180 |
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| 181 | #define MCP_WRITE 0x02
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| 182 |
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| 183 | #define MCP_READ 0x03
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| 184 |
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| 185 | #define MCP_BITMOD 0x05
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| 186 |
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| 187 | #define MCP_LOAD_TX0 0x40
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| 188 | #define MCP_LOAD_TX1 0x42
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| 189 | #define MCP_LOAD_TX2 0x44
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| 190 |
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| 191 | #define MCP_RTS_TX0 0x81
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| 192 | #define MCP_RTS_TX1 0x82
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| 193 | #define MCP_RTS_TX2 0x84
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| 194 | #define MCP_RTS_ALL 0x87
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| 195 |
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| 196 | #define MCP_READ_RX0 0x90
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| 197 | #define MCP_READ_RX1 0x94
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| 198 |
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| 199 | #define MCP_READ_STATUS 0xA0
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| 200 |
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| 201 | #define MCP_RX_STATUS 0xB0
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| 202 |
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| 203 | #define MCP_RESET 0xC0
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| 204 |
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| 205 |
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| 206 | /*
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| 207 | * CANCTRL Register Values
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| 208 | */
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| 209 |
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| 210 | #define MODE_NORMAL 0x00
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| 211 | #define MODE_SLEEP 0x20
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| 212 | #define MODE_LOOPBACK 0x40
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| 213 | #define MODE_LISTENONLY 0x60
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| 214 | #define MODE_CONFIG 0x80
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| 215 | #define MODE_POWERUP 0xE0
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| 216 | #define MODE_MASK 0xE0
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| 217 | #define ABORT_TX 0x10
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| 218 | #define MODE_ONESHOT 0x08
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| 219 | #define CLKOUT_ENABLE 0x04
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| 220 | #define CLKOUT_DISABLE 0x00
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| 221 | #define CLKOUT_PS1 0x00
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| 222 | #define CLKOUT_PS2 0x01
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| 223 | #define CLKOUT_PS4 0x02
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| 224 | #define CLKOUT_PS8 0x03
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| 225 |
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| 226 |
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| 227 | /*
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| 228 | * CNF1 Register Values
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| 229 | */
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| 230 |
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| 231 | #define SJW1 0x00
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| 232 | #define SJW2 0x40
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| 233 | #define SJW3 0x80
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| 234 | #define SJW4 0xC0
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| 235 |
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| 236 |
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| 237 | /*
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| 238 | * CNF2 Register Values
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| 239 | */
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| 240 |
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| 241 | #define BTLMODE 0x80
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| 242 | #define SAMPLE_1X 0x00
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| 243 | #define SAMPLE_3X 0x40
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| 244 |
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| 245 |
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| 246 | /*
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| 247 | * CNF3 Register Values
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| 248 | */
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| 249 |
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| 250 | #define SOF_ENABLE 0x80
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| 251 | #define SOF_DISABLE 0x00
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| 252 | #define WAKFIL_ENABLE 0x40
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| 253 | #define WAKFIL_DISABLE 0x00
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| 254 |
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| 255 |
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| 256 | /*
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| 257 | * CANINTF Register Bits
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| 258 | */
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| 259 |
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| 260 | #define MCP_RX0IF 0x01
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| 261 | #define MCP_RX1IF 0x02
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| 262 | #define MCP_TX0IF 0x04
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| 263 | #define MCP_TX1IF 0x08
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| 264 | #define MCP_TX2IF 0x10
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| 265 | #define MCP_ERRIF 0x20
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| 266 | #define MCP_WAKIF 0x40
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| 267 | #define MCP_MERRF 0x80
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| 268 |
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| 269 | /*
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| 270 | * speed 16M
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| 271 | */
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| 272 | #define MCP_16MHz_1000kBPS_CFG1 (0x00)
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| 273 | #define MCP_16MHz_1000kBPS_CFG2 (0xD0)
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| 274 | #define MCP_16MHz_1000kBPS_CFG3 (0x82)
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| 275 |
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| 276 | #define MCP_16MHz_500kBPS_CFG1 (0x00)
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| 277 | #define MCP_16MHz_500kBPS_CFG2 (0xF0)
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| 278 | #define MCP_16MHz_500kBPS_CFG3 (0x86)
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| 279 |
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| 280 | #define MCP_16MHz_250kBPS_CFG1 (0x41)
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| 281 | #define MCP_16MHz_250kBPS_CFG2 (0xF1)
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| 282 | #define MCP_16MHz_250kBPS_CFG3 (0x85)
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| 283 |
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| 284 | #define MCP_16MHz_200kBPS_CFG1 (0x01)
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| 285 | #define MCP_16MHz_200kBPS_CFG2 (0xFA)
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| 286 | #define MCP_16MHz_200kBPS_CFG3 (0x87)
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| 287 |
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| 288 | #define MCP_16MHz_125kBPS_CFG1 (0x03)
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| 289 | #define MCP_16MHz_125kBPS_CFG2 (0xF0)
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| 290 | #define MCP_16MHz_125kBPS_CFG3 (0x86)
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| 291 |
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| 292 | #define MCP_16MHz_100kBPS_CFG1 (0x03)
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| 293 | #define MCP_16MHz_100kBPS_CFG2 (0xFA)
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| 294 | #define MCP_16MHz_100kBPS_CFG3 (0x87)
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| 295 |
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| 296 | /*
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| 297 | #define MCP_16MHz_100kBPS_CFG1 (0x03)
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| 298 | #define MCP_16MHz_100kBPS_CFG2 (0xBA)
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| 299 | #define MCP_16MHz_100kBPS_CFG3 (0x07)
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| 300 | */
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| 301 |
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| 302 | #define MCP_16MHz_95kBPS_CFG1 (0x03)
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| 303 | #define MCP_16MHz_95kBPS_CFG2 (0xAD)
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| 304 | #define MCP_16MHz_95kBPS_CFG3 (0x07)
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| 305 |
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| 306 | #define MCP_16MHz_83k3BPS_CFG1 (0x03)
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| 307 | #define MCP_16MHz_83k3BPS_CFG2 (0xBE)
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| 308 | #define MCP_16MHz_83k3BPS_CFG3 (0x07)
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| 309 |
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| 310 | #define MCP_16MHz_80kBPS_CFG1 (0x03)
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| 311 | #define MCP_16MHz_80kBPS_CFG2 (0xFF)
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| 312 | #define MCP_16MHz_80kBPS_CFG3 (0x87)
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| 313 |
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| 314 | #define MCP_16MHz_50kBPS_CFG1 (0x07)
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| 315 | #define MCP_16MHz_50kBPS_CFG2 (0xFA)
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| 316 | #define MCP_16MHz_50kBPS_CFG3 (0x87)
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| 317 |
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| 318 | #define MCP_16MHz_40kBPS_CFG1 (0x07)
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| 319 | #define MCP_16MHz_40kBPS_CFG2 (0xFF)
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| 320 | #define MCP_16MHz_40kBPS_CFG3 (0x87)
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| 321 |
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| 322 | #define MCP_16MHz_33kBPS_CFG1 (0x09)
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| 323 | #define MCP_16MHz_33kBPS_CFG2 (0xBE)
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| 324 | #define MCP_16MHz_33kBPS_CFG3 (0x07)
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| 325 |
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| 326 | #define MCP_16MHz_31k25BPS_CFG1 (0x0F)
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| 327 | #define MCP_16MHz_31k25BPS_CFG2 (0xF1)
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| 328 | #define MCP_16MHz_31k25BPS_CFG3 (0x85)
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| 329 |
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| 330 | #define MCP_16MHz_20kBPS_CFG1 (0x0F)
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| 331 | #define MCP_16MHz_20kBPS_CFG2 (0xFF)
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| 332 | #define MCP_16MHz_20kBPS_CFG3 (0x87)
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| 333 |
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| 334 | #define MCP_16MHz_10kBPS_CFG1 (0x1F)
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| 335 | #define MCP_16MHz_10kBPS_CFG2 (0xFF)
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| 336 | #define MCP_16MHz_10kBPS_CFG3 (0x87)
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| 337 |
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| 338 | #define MCP_16MHz_5kBPS_CFG1 (0x3F)
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| 339 | #define MCP_16MHz_5kBPS_CFG2 (0xFF)
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| 340 | #define MCP_16MHz_5kBPS_CFG3 (0x87)
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| 341 |
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| 342 |
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| 343 |
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| 344 | #define MCPDEBUG (0)
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| 345 | #define MCPDEBUG_TXBUF (0)
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| 346 | #define MCP_N_TXBUFFERS (3)
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| 347 |
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| 348 | #define MCP_RXBUF_0 (MCP_RXB0SIDH)
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| 349 | #define MCP_RXBUF_1 (MCP_RXB1SIDH)
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| 350 |
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| 351 | //#define SPICS 10
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| 352 | #define MCP2515_SELECT() digitalWrite(SPICS, LOW)
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| 353 | #define MCP2515_UNSELECT() digitalWrite(SPICS, HIGH)
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| 354 |
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| 355 | #define MCP2515_OK (0)
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| 356 | #define MCP2515_FAIL (1)
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| 357 | #define MCP_ALLTXBUSY (2)
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| 358 |
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| 359 | #define CANDEBUG 1
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| 360 |
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| 361 | #define CANUSELOOP 0
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| 362 |
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| 363 | #define CANSENDTIMEOUT (200) /* milliseconds */
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| 364 |
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| 365 | /*
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| 366 | * initial value of gCANAutoProcess
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| 367 | */
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| 368 | #define CANAUTOPROCESS (1)
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| 369 | #define CANAUTOON (1)
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| 370 | #define CANAUTOOFF (0)
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| 371 |
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| 372 | #define CAN_STDID (0)
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| 373 | #define CAN_EXTID (1)
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| 374 |
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| 375 | #define CANDEFAULTIDENT (0x55CC)
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| 376 | #define CANDEFAULTIDENTEXT (CAN_EXTID)
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| 377 |
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| 378 | #define CAN_5KBPS 1
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| 379 | #define CAN_10KBPS 2
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| 380 | #define CAN_20KBPS 3
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| 381 | #define CAN_31K25BPS 4
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| 382 | #define CAN_33KBPS 5
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| 383 | #define CAN_40KBPS 6
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| 384 | #define CAN_50KBPS 7
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| 385 | #define CAN_80KBPS 8
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| 386 | #define CAN_83K3BPS 9
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| 387 | #define CAN_95KBPS 10
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| 388 | #define CAN_100KBPS 11
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| 389 | #define CAN_125KBPS 12
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| 390 | #define CAN_200KBPS 13
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| 391 | #define CAN_250KBPS 14
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| 392 | #define CAN_500KBPS 15
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| 393 | #define CAN_1000KBPS 16
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| 394 |
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| 395 | #define CAN_OK (0)
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| 396 | #define CAN_FAILINIT (1)
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| 397 | #define CAN_FAILTX (2)
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| 398 | #define CAN_MSGAVAIL (3)
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| 399 | #define CAN_NOMSG (4)
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| 400 | #define CAN_SENDWAIT (5)
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| 401 | #define CAN_NOSENDWAIT (6)
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| 402 | #define CAN_CTRLERROR (7)
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| 403 | #define CAN_GETTXBFTIMEOUT (8)
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| 404 | #define CAN_SENDMSGTIMEOUT (9)
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| 405 | #define CAN_FAIL (0xff)
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| 406 |
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| 407 | #define CAN_MAX_CHAR_IN_MESSAGE (8)
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| 408 |
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| 409 | #endif
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| 410 | /*********************************************************************************************************
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| 411 | END FILE
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| 412 | *********************************************************************************************************/
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