ESPHome 2026.6.0-dev
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mcp2515_defs.h
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1#pragma once
2
3namespace esphome::mcp2515 {
4
5static const uint8_t CANCTRL_REQOP = 0xE0;
6static const uint8_t CANCTRL_ABAT = 0x10;
7static const uint8_t CANCTRL_OSM = 0x08;
8static const uint8_t CANCTRL_CLKEN = 0x04;
9static const uint8_t CANCTRL_CLKPRE = 0x03;
10
19
20enum TxbNCtrl : uint8_t {
21 TXB_ABTF = 0x40,
22 TXB_MLOA = 0x20,
23 TXB_TXERR = 0x10,
24 TXB_TXREQ = 0x08,
25 TXB_TXIE = 0x04,
26 TXB_TXP = 0x03
27};
28
46
47enum REGISTER : uint8_t {
48 MCP_RXF0SIDH = 0x00,
49 MCP_RXF0SIDL = 0x01,
50 MCP_RXF0EID8 = 0x02,
51 MCP_RXF0EID0 = 0x03,
52 MCP_RXF1SIDH = 0x04,
53 MCP_RXF1SIDL = 0x05,
54 MCP_RXF1EID8 = 0x06,
55 MCP_RXF1EID0 = 0x07,
56 MCP_RXF2SIDH = 0x08,
57 MCP_RXF2SIDL = 0x09,
58 MCP_RXF2EID8 = 0x0A,
59 MCP_RXF2EID0 = 0x0B,
60 MCP_CANSTAT = 0x0E,
61 MCP_CANCTRL = 0x0F,
62 MCP_RXF3SIDH = 0x10,
63 MCP_RXF3SIDL = 0x11,
64 MCP_RXF3EID8 = 0x12,
65 MCP_RXF3EID0 = 0x13,
66 MCP_RXF4SIDH = 0x14,
67 MCP_RXF4SIDL = 0x15,
68 MCP_RXF4EID8 = 0x16,
69 MCP_RXF4EID0 = 0x17,
70 MCP_RXF5SIDH = 0x18,
71 MCP_RXF5SIDL = 0x19,
72 MCP_RXF5EID8 = 0x1A,
73 MCP_RXF5EID0 = 0x1B,
74 MCP_TEC = 0x1C,
75 MCP_REC = 0x1D,
76 MCP_RXM0SIDH = 0x20,
77 MCP_RXM0SIDL = 0x21,
78 MCP_RXM0EID8 = 0x22,
79 MCP_RXM0EID0 = 0x23,
80 MCP_RXM1SIDH = 0x24,
81 MCP_RXM1SIDL = 0x25,
82 MCP_RXM1EID8 = 0x26,
83 MCP_RXM1EID0 = 0x27,
84 MCP_CNF3 = 0x28,
85 MCP_CNF2 = 0x29,
86 MCP_CNF1 = 0x2A,
87 MCP_CANINTE = 0x2B,
88 MCP_CANINTF = 0x2C,
89 MCP_EFLG = 0x2D,
90 MCP_TXB0CTRL = 0x30,
91 MCP_TXB0SIDH = 0x31,
92 MCP_TXB0SIDL = 0x32,
93 MCP_TXB0EID8 = 0x33,
94 MCP_TXB0EID0 = 0x34,
95 MCP_TXB0DLC = 0x35,
96 MCP_TXB0DATA = 0x36,
97 MCP_TXB1CTRL = 0x40,
98 MCP_TXB1SIDH = 0x41,
99 MCP_TXB1SIDL = 0x42,
100 MCP_TXB1EID8 = 0x43,
101 MCP_TXB1EID0 = 0x44,
102 MCP_TXB1DLC = 0x45,
103 MCP_TXB1DATA = 0x46,
104 MCP_TXB2CTRL = 0x50,
105 MCP_TXB2SIDH = 0x51,
106 MCP_TXB2SIDL = 0x52,
107 MCP_TXB2EID8 = 0x53,
108 MCP_TXB2EID0 = 0x54,
109 MCP_TXB2DLC = 0x55,
110 MCP_TXB2DATA = 0x56,
111 MCP_RXB0CTRL = 0x60,
112 MCP_RXB0SIDH = 0x61,
113 MCP_RXB0SIDL = 0x62,
114 MCP_RXB0EID8 = 0x63,
115 MCP_RXB0EID0 = 0x64,
116 MCP_RXB0DLC = 0x65,
117 MCP_RXB0DATA = 0x66,
118 MCP_RXB1CTRL = 0x70,
119 MCP_RXB1SIDH = 0x71,
120 MCP_RXB1SIDL = 0x72,
121 MCP_RXB1EID8 = 0x73,
122 MCP_RXB1EID0 = 0x74,
123 MCP_RXB1DLC = 0x75,
124 MCP_RXB1DATA = 0x76
125};
126
127static const uint8_t CANSTAT_OPMOD = 0xE0;
128static const uint8_t CANSTAT_ICOD = 0x0E;
129
130static const uint8_t CNF3_SOF = 0x80;
131
132// applies to RXBn_SIDL, TXBn_SIDL and RXFn_SIDL
133static const uint8_t SIDL_EXIDE_MASK = 0x08;
134
135static const uint8_t DLC_MASK = 0x0F;
136static const uint8_t RTR_MASK = 0x40;
137
138static const uint8_t RXB_CTRL_RXM_STD = 0x20;
139static const uint8_t RXB_CTRL_RXM_EXT = 0x40;
140static const uint8_t RXB_CTRL_RXM_STDEXT = 0x00;
141static const uint8_t RXB_CTRL_RXM_MASK = 0x60;
142static const uint8_t RXB_CTRL_RTR = 0x08;
143static const uint8_t RXB_0_CTRL_BUKT = 0x04;
144
145static const uint8_t MCP_SIDH = 0;
146static const uint8_t MCP_SIDL = 1;
147static const uint8_t MCP_EID8 = 2;
148static const uint8_t MCP_EID0 = 3;
149static const uint8_t MCP_DLC = 4;
150static const uint8_t MCP_DATA = 5;
151
152/*
153 * Speed 8M
154 */
155static const uint8_t MCP_8MHZ_1000KBPS_CFG1 = 0x00;
156static const uint8_t MCP_8MHZ_1000KBPS_CFG2 = 0x80;
157static const uint8_t MCP_8MHZ_1000KBPS_CFG3 = 0x80;
158
159static const uint8_t MCP_8MHZ_500KBPS_CFG1 = 0x00;
160static const uint8_t MCP_8MHZ_500KBPS_CFG2 = 0x90;
161static const uint8_t MCP_8MHZ_500KBPS_CFG3 = 0x82;
162
163static const uint8_t MCP_8MHZ_250KBPS_CFG1 = 0x00;
164static const uint8_t MCP_8MHZ_250KBPS_CFG2 = 0xB1;
165static const uint8_t MCP_8MHZ_250KBPS_CFG3 = 0x85;
166
167static const uint8_t MCP_8MHZ_200KBPS_CFG1 = 0x00;
168static const uint8_t MCP_8MHZ_200KBPS_CFG2 = 0xB4;
169static const uint8_t MCP_8MHZ_200KBPS_CFG3 = 0x86;
170
171static const uint8_t MCP_8MHZ_125KBPS_CFG1 = 0x01;
172static const uint8_t MCP_8MHZ_125KBPS_CFG2 = 0xB1;
173static const uint8_t MCP_8MHZ_125KBPS_CFG3 = 0x85;
174
175static const uint8_t MCP_8MHZ_100KBPS_CFG1 = 0x01;
176static const uint8_t MCP_8MHZ_100KBPS_CFG2 = 0xB4;
177static const uint8_t MCP_8MHZ_100KBPS_CFG3 = 0x86;
178
179static const uint8_t MCP_8MHZ_80KBPS_CFG1 = 0x01;
180static const uint8_t MCP_8MHZ_80KBPS_CFG2 = 0xBF;
181static const uint8_t MCP_8MHZ_80KBPS_CFG3 = 0x87;
182
183static const uint8_t MCP_8MHZ_50KBPS_CFG1 = 0x03;
184static const uint8_t MCP_8MHZ_50KBPS_CFG2 = 0xB4;
185static const uint8_t MCP_8MHZ_50KBPS_CFG3 = 0x86;
186
187static const uint8_t MCP_8MHZ_40KBPS_CFG1 = 0x03;
188static const uint8_t MCP_8MHZ_40KBPS_CFG2 = 0xBF;
189static const uint8_t MCP_8MHZ_40KBPS_CFG3 = 0x87;
190
191static const uint8_t MCP_8MHZ_33K3BPS_CFG1 = 0x47;
192static const uint8_t MCP_8MHZ_33K3BPS_CFG2 = 0xE2;
193static const uint8_t MCP_8MHZ_33K3BPS_CFG3 = 0x85;
194
195static const uint8_t MCP_8MHZ_31K25BPS_CFG1 = 0x07;
196static const uint8_t MCP_8MHZ_31K25BPS_CFG2 = 0xA4;
197static const uint8_t MCP_8MHZ_31K25BPS_CFG3 = 0x84;
198
199static const uint8_t MCP_8MHZ_20KBPS_CFG1 = 0x07;
200static const uint8_t MCP_8MHZ_20KBPS_CFG2 = 0xBF;
201static const uint8_t MCP_8MHZ_20KBPS_CFG3 = 0x87;
202
203static const uint8_t MCP_8MHZ_10KBPS_CFG1 = 0x0F;
204static const uint8_t MCP_8MHZ_10KBPS_CFG2 = 0xBF;
205static const uint8_t MCP_8MHZ_10KBPS_CFG3 = 0x87;
206
207static const uint8_t MCP_8MHZ_5KBPS_CFG1 = 0x1F;
208static const uint8_t MCP_8MHZ_5KBPS_CFG2 = 0xBF;
209static const uint8_t MCP_8MHZ_5KBPS_CFG3 = 0x87;
210
211/*
212 * Speed 12M
213 */
214
215static const uint8_t MCP_12MHZ_1000KBPS_CFG1 = 0x00;
216static const uint8_t MCP_12MHZ_1000KBPS_CFG2 = 0x88;
217static const uint8_t MCP_12MHZ_1000KBPS_CFG3 = 0x81;
218
219static const uint8_t MCP_12MHZ_500KBPS_CFG1 = 0x00;
220static const uint8_t MCP_12MHZ_500KBPS_CFG2 = 0x9B;
221static const uint8_t MCP_12MHZ_500KBPS_CFG3 = 0x82;
222
223static const uint8_t MCP_12MHZ_250KBPS_CFG1 = 0x01;
224static const uint8_t MCP_12MHZ_250KBPS_CFG2 = 0x9B;
225static const uint8_t MCP_12MHZ_250KBPS_CFG3 = 0x82;
226
227static const uint8_t MCP_12MHZ_200KBPS_CFG1 = 0x01;
228static const uint8_t MCP_12MHZ_200KBPS_CFG2 = 0xA4;
229static const uint8_t MCP_12MHZ_200KBPS_CFG3 = 0x83;
230
231static const uint8_t MCP_12MHZ_125KBPS_CFG1 = 0x03;
232static const uint8_t MCP_12MHZ_125KBPS_CFG2 = 0x9B;
233static const uint8_t MCP_12MHZ_125KBPS_CFG3 = 0x82;
234
235static const uint8_t MCP_12MHZ_100KBPS_CFG1 = 0x03;
236static const uint8_t MCP_12MHZ_100KBPS_CFG2 = 0xA4;
237static const uint8_t MCP_12MHZ_100KBPS_CFG3 = 0x83;
238
239static const uint8_t MCP_12MHZ_80KBPS_CFG1 = 0x04;
240static const uint8_t MCP_12MHZ_80KBPS_CFG2 = 0xA4;
241static const uint8_t MCP_12MHZ_80KBPS_CFG3 = 0x83;
242
243static const uint8_t MCP_12MHZ_50KBPS_CFG1 = 0x07;
244static const uint8_t MCP_12MHZ_50KBPS_CFG2 = 0xA4;
245static const uint8_t MCP_12MHZ_50KBPS_CFG3 = 0x83;
246
247static const uint8_t MCP_12MHZ_40KBPS_CFG1 = 0x09;
248static const uint8_t MCP_12MHZ_40KBPS_CFG2 = 0xA4;
249static const uint8_t MCP_12MHZ_40KBPS_CFG3 = 0x83;
250
251static const uint8_t MCP_12MHZ_33K3BPS_CFG1 = 0x08;
252static const uint8_t MCP_12MHZ_33K3BPS_CFG2 = 0xB6;
253static const uint8_t MCP_12MHZ_33K3BPS_CFG3 = 0x84;
254
255static const uint8_t MCP_12MHZ_20KBPS_CFG1 = 0x0E;
256static const uint8_t MCP_12MHZ_20KBPS_CFG2 = 0xB6;
257static const uint8_t MCP_12MHZ_20KBPS_CFG3 = 0x84;
258
259static const uint8_t MCP_12MHZ_10KBPS_CFG1 = 0x31;
260static const uint8_t MCP_12MHZ_10KBPS_CFG2 = 0x9B;
261static const uint8_t MCP_12MHZ_10KBPS_CFG3 = 0x82;
262
263static const uint8_t MCP_12MHZ_5KBPS_CFG1 = 0x3B;
264static const uint8_t MCP_12MHZ_5KBPS_CFG2 = 0xB6;
265static const uint8_t MCP_12MHZ_5KBPS_CFG3 = 0x84;
266
267/*
268 * speed 16M
269 */
270static const uint8_t MCP_16MHZ_1000KBPS_CFG1 = 0x00;
271static const uint8_t MCP_16MHZ_1000KBPS_CFG2 = 0xD0;
272static const uint8_t MCP_16MHZ_1000KBPS_CFG3 = 0x82;
273
274static const uint8_t MCP_16MHZ_500KBPS_CFG1 = 0x00;
275static const uint8_t MCP_16MHZ_500KBPS_CFG2 = 0xF0;
276static const uint8_t MCP_16MHZ_500KBPS_CFG3 = 0x86;
277
278static const uint8_t MCP_16MHZ_250KBPS_CFG1 = 0x41;
279static const uint8_t MCP_16MHZ_250KBPS_CFG2 = 0xF1;
280static const uint8_t MCP_16MHZ_250KBPS_CFG3 = 0x85;
281
282static const uint8_t MCP_16MHZ_200KBPS_CFG1 = 0x01;
283static const uint8_t MCP_16MHZ_200KBPS_CFG2 = 0xFA;
284static const uint8_t MCP_16MHZ_200KBPS_CFG3 = 0x87;
285
286static const uint8_t MCP_16MHZ_125KBPS_CFG1 = 0x03;
287static const uint8_t MCP_16MHZ_125KBPS_CFG2 = 0xF0;
288static const uint8_t MCP_16MHZ_125KBPS_CFG3 = 0x86;
289
290static const uint8_t MCP_16MHZ_100KBPS_CFG1 = 0x03;
291static const uint8_t MCP_16MHZ_100KBPS_CFG2 = 0xFA;
292static const uint8_t MCP_16MHZ_100KBPS_CFG3 = 0x87;
293
294static const uint8_t MCP_16MHZ_80KBPS_CFG1 = 0x03;
295static const uint8_t MCP_16MHZ_80KBPS_CFG2 = 0xFF;
296static const uint8_t MCP_16MHZ_80KBPS_CFG3 = 0x87;
297
298static const uint8_t MCP_16MHZ_83K3BPS_CFG1 = 0x03;
299static const uint8_t MCP_16MHZ_83K3BPS_CFG2 = 0xBE;
300static const uint8_t MCP_16MHZ_83K3BPS_CFG3 = 0x07;
301
302static const uint8_t MCP_16MHZ_50KBPS_CFG1 = 0x07;
303static const uint8_t MCP_16MHZ_50KBPS_CFG2 = 0xFA;
304static const uint8_t MCP_16MHZ_50KBPS_CFG3 = 0x87;
305
306static const uint8_t MCP_16MHZ_40KBPS_CFG1 = 0x07;
307static const uint8_t MCP_16MHZ_40KBPS_CFG2 = 0xFF;
308static const uint8_t MCP_16MHZ_40KBPS_CFG3 = 0x87;
309
310static const uint8_t MCP_16MHZ_33K3BPS_CFG1 = 0x4E;
311static const uint8_t MCP_16MHZ_33K3BPS_CFG2 = 0xF1;
312static const uint8_t MCP_16MHZ_33K3BPS_CFG3 = 0x85;
313
314static const uint8_t MCP_16MHZ_20KBPS_CFG1 = 0x0F;
315static const uint8_t MCP_16MHZ_20KBPS_CFG2 = 0xFF;
316static const uint8_t MCP_16MHZ_20KBPS_CFG3 = 0x87;
317
318static const uint8_t MCP_16MHZ_10KBPS_CFG1 = 0x1F;
319static const uint8_t MCP_16MHZ_10KBPS_CFG2 = 0xFF;
320static const uint8_t MCP_16MHZ_10KBPS_CFG3 = 0x87;
321
322static const uint8_t MCP_16MHZ_5KBPS_CFG1 = 0x3F;
323static const uint8_t MCP_16MHZ_5KBPS_CFG2 = 0xFF;
324static const uint8_t MCP_16MHZ_5KBPS_CFG3 = 0x87;
325
326/*
327 * speed 20M
328 */
329static const uint8_t MCP_20MHZ_1000KBPS_CFG1 = 0x00;
330static const uint8_t MCP_20MHZ_1000KBPS_CFG2 = 0xD9;
331static const uint8_t MCP_20MHZ_1000KBPS_CFG3 = 0x82;
332
333static const uint8_t MCP_20MHZ_500KBPS_CFG1 = 0x00;
334static const uint8_t MCP_20MHZ_500KBPS_CFG2 = 0xFA;
335static const uint8_t MCP_20MHZ_500KBPS_CFG3 = 0x87;
336
337static const uint8_t MCP_20MHZ_250KBPS_CFG1 = 0x41;
338static const uint8_t MCP_20MHZ_250KBPS_CFG2 = 0xFB;
339static const uint8_t MCP_20MHZ_250KBPS_CFG3 = 0x86;
340
341static const uint8_t MCP_20MHZ_200KBPS_CFG1 = 0x01;
342static const uint8_t MCP_20MHZ_200KBPS_CFG2 = 0xFF;
343static const uint8_t MCP_20MHZ_200KBPS_CFG3 = 0x87;
344
345static const uint8_t MCP_20MHZ_125KBPS_CFG1 = 0x03;
346static const uint8_t MCP_20MHZ_125KBPS_CFG2 = 0xFA;
347static const uint8_t MCP_20MHZ_125KBPS_CFG3 = 0x87;
348
349static const uint8_t MCP_20MHZ_100KBPS_CFG1 = 0x04;
350static const uint8_t MCP_20MHZ_100KBPS_CFG2 = 0xFA;
351static const uint8_t MCP_20MHZ_100KBPS_CFG3 = 0x87;
352
353static const uint8_t MCP_20MHZ_83K3BPS_CFG1 = 0x04;
354static const uint8_t MCP_20MHZ_83K3BPS_CFG2 = 0xFE;
355static const uint8_t MCP_20MHZ_83K3BPS_CFG3 = 0x87;
356
357static const uint8_t MCP_20MHZ_80KBPS_CFG1 = 0x04;
358static const uint8_t MCP_20MHZ_80KBPS_CFG2 = 0xFF;
359static const uint8_t MCP_20MHZ_80KBPS_CFG3 = 0x87;
360
361static const uint8_t MCP_20MHZ_50KBPS_CFG1 = 0x09;
362static const uint8_t MCP_20MHZ_50KBPS_CFG2 = 0xFA;
363static const uint8_t MCP_20MHZ_50KBPS_CFG3 = 0x87;
364
365static const uint8_t MCP_20MHZ_40KBPS_CFG1 = 0x09;
366static const uint8_t MCP_20MHZ_40KBPS_CFG2 = 0xFF;
367static const uint8_t MCP_20MHZ_40KBPS_CFG3 = 0x87;
368
369static const uint8_t MCP_20MHZ_33K3BPS_CFG1 = 0x0B;
370static const uint8_t MCP_20MHZ_33K3BPS_CFG2 = 0xFF;
371static const uint8_t MCP_20MHZ_33K3BPS_CFG3 = 0x87;
372
373} // namespace esphome::mcp2515
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