ESPHome 2026.1.0-dev
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cc1101pa.h
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1#pragma once
2
3#include <cstdint>
4#include <cstddef>
5#include <cmath>
6
7namespace esphome::cc1101 {
8
9// CC1101 Design Note DN013
10
11struct PowerTableItem {
12 uint8_t value;
13 uint8_t dbm_diff; // starts from 12.0, diff to previous entry, scaled by 10
14
15 static uint8_t find(const PowerTableItem *items, size_t count, float &dbm_target) {
16 int32_t dbmi = 120;
17 int32_t dbmi_target = static_cast<int32_t>(std::lround(dbm_target * 10));
18 for (size_t i = 0; i < count; i++) {
19 dbmi -= items[i].dbm_diff;
20 if (dbmi_target >= dbmi) {
21 // Skip invalid PA settings (magic numbers derived from TI DN013/SmartRC logic)
22 if (items[i].value >= 0x61 && items[i].value <= 0x6F) {
23 continue;
24 }
25 dbm_target = static_cast<float>(dbmi) / 10.0f;
26 return items[i].value;
27 }
28 }
29 dbm_target = -30.0f;
30 return 0x03;
31 }
32};
33
34static const PowerTableItem PA_TABLE_315[] = {
35 {0xC0, 14}, // C0 10.6 -35.3 -44.4 -57.8 -53.8 -58.3 -57.2 -57.8 -56.7 28.5
36 {0xC3, 10}, // C3 9.6 -39.2 -45.3 -59.0 -54.2 -59.0 -57.5 -58.3 -57.2 26.2
37 {0xC6, 11}, // C6 8.5 -43.2 -46.3 -59.2 -54.7 -59.1 -57.7 -58.3 -57.4 24.4
38 {0xC9, 10}, // C9 7.5 -47.0 -47.3 -58.9 -55.0 -59.0 -57.9 -58.4 -57.5 23.0
39 {0x81, 12}, // 81 6.3 -49.2 -45.7 -57.3 -53.6 -59.0 -56.0 -56.5 -57.5 19.5
40 {0x85, 13}, // 85 5.0 -51.0 -47.2 -59.8 -54.2 -59.0 -56.9 -57.9 -58.0 18.3
41 {0x88, 11}, // 88 3.9 -46.6 -48.1 -60.0 -55.0 -58.9 -57.5 -58.2 -58.2 17.4
42 {0xCF, 11}, // CF 2.8 -49.8 -51.3 -57.6 -56.8 -59.1 -58.4 -58.1 -58.3 18.0
43 {0x8D, 11}, // 8D 1.7 -43.8 -49.5 -58.9 -56.3 -58.8 -58.2 -58.4 -58.5 15.8
44 {0x50, 10}, // 50 0.7 -59.2 -51.2 -59.0 -56.5 -59.0 -58.3 -58.3 -58.2 15.3
45 {0x40, 10}, // 40 -0.3 -58.2 -52.1 -59.4 -56.9 -59.0 -58.4 -58.4 -58.3 14.7
46 {0x3D, 10}, // 3D -1.3 -54.4 -48.4 -59.8 -57.5 -58.9 -58.3 -58.5 -58.5 19.3
47 {0x55, 10}, // 55 -2.3 -56.7 -53.6 -59.7 -57.5 -59.1 -58.7 -58.4 -58.4 13.7
48 {0x39, 11}, // 39 -3.4 -50.9 -49.5 -59.8 -58.0 -59.0 -58.5 -58.4 -58.4 16.8
49 {0x2B, 15}, // 2B -4.9 -51.2 -50.4 -59.9 -58.0 -58.9 -58.7 -58.3 -58.4 15.6
50 {0x29, 16}, // 29 -6.5 -51.8 -51.6 -59.9 -58.4 -59.0 -58.8 -58.3 -58.3 14.7
51 {0x28, 10}, // 28 -7.5 -52.2 -52.5 -60.0 -58.6 -59.0 -58.8 -58.2 -58.4 14.3
52 {0x27, 11}, // 27 -8.6 -52.9 -53.1 -60.0 -58.8 -59.1 -58.8 -58.3 -58.5 13.9
53 {0x26, 12}, // 26 -9.8 -53.6 -54.3 -60.1 -58.7 -59.0 -58.7 -58.4 -58.4 13.4
54 {0x25, 13}, // 25 -11.1 -54.3 -55.5 -60.1 -58.8 -59.1 -58.8 -58.4 -58.4 13.0
55 {0x33, 11}, // 33 -12.2 -55.0 -56.3 -60.0 -58.7 -59.0 -58.9 -58.4 -58.4 12.8
56 {0x1F, 11}, // 1F -13.3 -55.6 -57.2 -60.0 -58.8 -58.9 -58.9 -58.3 -58.4 12.4
57 {0x1D, 12}, // 1D -14.5 -56.0 -58.0 -60.0 -58.8 -59.1 -58.7 -58.4 -58.5 12.1
58 {0x32, 11}, // 32 -15.6 -56.9 -58.8 -59.9 -58.8 -59.0 -58.8 -58.3 -58.5 12.2
59 {0x1A, 10}, // 1A -16.6 -57.3 -59.5 -59.9 -58.8 -59.1 -58.8 -58.4 -58.4 11.8
60 {0x18, 19}, // 18 -18.5 -57.8 -60.3 -60.0 -58.8 -59.0 -58.9 -58.2 -58.5 11.6
61 {0x17, 11}, // 17 -19.6 -58.7 -60.9 -60.0 -58.7 -58.9 -58.9 -58.5 -58.4 11.4
62 {0x0C, 11}, // C -20.7 -59.4 -61.1 -60.0 -58.8 -59.1 -58.9 -58.4 -58.3 11.3
63 {0x0A, 15}, // A -22.2 -59.9 -61.9 -60.0 -58.9 -59.0 -58.9 -58.4 -58.5 11.2
64 {0x08, 18}, // 8 -24.0 -60.5 -62.5 -60.0 -58.7 -59.1 -58.8 -58.3 -58.5 11.1
65 {0x07, 11}, // 7 -25.1 -61.3 -62.9 -60.1 -58.8 -59.1 -58.8 -58.4 -58.4 11.0
66 {0x06, 13}, // 6 -26.4 -61.6 -63.2 -60.1 -58.7 -59.0 -58.9 -58.5 -58.5 11.0
67 {0x05, 13}, // 5 -27.7 -62.3 -63.4 -60.1 -58.7 -59.2 -58.8 -58.4 -58.5 10.9
68 {0x04, 19}, // 4 -29.6 -62.7 -63.6 -59.9 -58.7 -59.0 -58.9 -58.4 -58.4 10.8
69};
70
71static const PowerTableItem PA_TABLE_433[] = {
72 {0xC0, 21}, // C0 9.9 -43.4 -45.0 -53.9 -55.2 -55.8 -52.3 -55.6 29.1
73 {0xC3, 11}, // C3 8.8 -49.3 -45.9 -55.9 -55.4 -57.2 -52.6 -57.5 26.9
74 {0xC6, 10}, // C6 7.8 -56.2 -46.9 -56.9 -55.6 -58.2 -53.2 -57.9 25.2
75 {0xC9, 10}, // C9 6.8 -56.1 -47.9 -57.3 -55.9 -58.5 -54.0 -56.9 23.8
76 {0xCC, 10}, // CC 5.8 -52.8 -48.9 -57.0 -56.1 -58.4 -54.6 -56.2 22.6
77 {0x85, 10}, // 85 4.8 -54.2 -53.0 -58.3 -55.0 -57.8 -56.8 -58.0 19.1
78 {0x88, 12}, // 88 3.6 -56.2 -53.8 -58.3 -55.7 -58.1 -57.2 -58.2 18.2
79 {0x8B, 13}, // 8B 2.3 -57.7 -54.5 -58.0 -56.3 -58.1 -57.5 -58.2 17.3
80 {0x8E, 19}, // 8E 0.4 -58.0 -55.5 -57.8 -57.4 -58.2 -58.1 -58.4 16.2
81 {0x40, 12}, // 40 -0.8 -59.7 -56.1 -58.2 -57.7 -58.4 -58.3 -58.2 15.4
82 {0x3C, 13}, // 3C -2.1 -60.6 -57.3 -58.2 -58.0 -58.5 -58.4 -58.5 19.3
83 {0x3A, 10}, // 3A -3.1 -59.5 -57.5 -58.3 -58.3 -58.6 -58.1 -58.6 18.1
84 {0x8F, 15}, // 8F -4.6 -52.2 -57.7 -58.1 -58.8 -58.4 -58.7 -58.3 14.4
85 {0x37, 10}, // 37 -5.6 -56.8 -58.3 -58.3 -58.8 -58.4 -58.5 -58.4 16.2
86 {0x36, 12}, // 36 -6.8 -56.8 -58.9 -58.3 -58.8 -58.3 -58.5 -58.5 15.6
87 {0x28, 10}, // 28 -7.8 -56.6 -59.0 -58.2 -59.0 -58.4 -58.5 -58.4 15.1
88 {0x26, 21}, // 26 -9.9 -57.0 -59.4 -58.3 -59.0 -58.4 -58.7 -58.4 14.3
89 {0x25, 15}, // 25 -11.4 -57.3 -59.7 -58.4 -59.0 -58.3 -58.7 -58.5 13.9
90 {0x24, 19}, // 24 -13.3 -57.9 -59.9 -58.2 -59.0 -58.6 -58.7 -58.5 13.5
91 {0x1E, 10}, // 1E -14.3 -58.4 -59.8 -58.2 -59.0 -58.4 -58.6 -58.6 13.2
92 {0x1C, 12}, // 1C -15.5 -58.6 -59.9 -58.4 -58.8 -58.6 -58.8 -58.5 12.9
93 {0x1A, 15}, // 1A -17.0 -59.4 -59.9 -58.3 -59.1 -58.5 -58.7 -58.4 12.7
94 {0x18, 18}, // 18 -18.8 -60.2 -59.9 -58.2 -59.0 -58.5 -58.7 -58.6 12.5
95 {0x17, 10}, // 17 -19.8 -60.6 -59.9 -58.2 -58.9 -58.4 -58.7 -58.4 12.4
96 {0x0C, 12}, // C -21.0 -61.1 -59.9 -58.4 -59.0 -58.5 -58.7 -58.6 12.3
97 {0x15, 15}, // 15 -22.5 -61.7 -60.0 -58.2 -59.1 -58.3 -58.6 -58.7 12.2
98 {0x08, 18}, // 8 -24.3 -62.3 -59.9 -58.3 -59.0 -58.4 -58.8 -58.5 12.1
99 {0x07, 10}, // 7 -25.3 -62.6 -59.9 -58.2 -59.0 -58.6 -58.7 -58.5 12.0
100 {0x06, 12}, // 6 -26.5 -63.2 -59.9 -58.3 -58.9 -58.5 -58.6 -58.6 12.0
101 {0x05, 14}, // 5 -27.9 -63.5 -59.8 -58.3 -59.1 -58.5 -58.7 -58.4 11.9
102 {0x04, 16}, // 4 -29.5 -63.7 -59.9 -58.3 -58.9 -58.5 -58.5 -58.5 11.9
103};
104
105static const PowerTableItem PA_TABLE_868[] = {
106 {0xC0, 13}, // C0 10.7 -35.1 -58.6 -58.6 -57.5 -50.0 34.2
107 {0xC3, 11}, // C3 9.6 -41.5 -58.5 -58.3 -57.4 -54.4 31.6
108 {0xC6, 11}, // C6 8.5 -47.7 -58.5 -58.3 -57.6 -55.0 29.5
109 {0xC9, 10}, // C9 7.5 -44.4 -58.5 -58.5 -57.7 -53.6 27.8
110 {0xCC, 10}, // CC 6.5 -40.6 -58.6 -58.4 -57.6 -52.5 26.3
111 {0xCE, 10}, // CE 5.5 -38.5 -58.5 -58.4 -57.8 -52.2 25.0
112 {0x84, 11}, // 84 4.4 -35.3 -58.7 -58.5 -57.8 -55.8 20.3
113 {0x87, 10}, // 87 3.4 -39.4 -58.6 -58.6 -57.8 -55.7 19.5
114 {0xCF, 10}, // CF 2.4 -36.6 -58.6 -58.4 -57.7 -53.6 22.0
115 {0x8C, 13}, // 8C 1.1 -50.2 -58.6 -58.5 -57.7 -55.9 17.9
116 {0x50, 14}, // 50 -0.3 -42.1 -58.5 -58.5 -57.6 -57.1 16.9
117 {0x40, 12}, // 40 -1.5 -43.2 -58.5 -58.7 -57.7 -57.2 16.1
118 {0x3F, 11}, // 3F -2.6 -53.7 -58.6 -58.5 -57.8 -57.5 21.4
119 {0x55, 10}, // 55 -3.6 -44.9 -58.6 -58.4 -57.8 -57.5 15.0
120 {0x57, 12}, // 57 -4.8 -46.0 -58.6 -58.5 -57.6 -57.4 14.5
121 {0x8F, 12}, // 8F -6.0 -51.6 -58.5 -58.6 -57.7 -57.1 15.0
122 {0x2A, 14}, // 2A -7.4 -49.3 -58.5 -58.6 -57.7 -57.4 16.2
123 {0x28, 16}, // 28 -9.0 -49.0 -58.5 -58.6 -57.7 -57.4 15.4
124 {0x26, 20}, // 26 -11.0 -49.2 -58.5 -58.5 -57.7 -57.4 14.6
125 {0x25, 15}, // 25 -12.5 -49.5 -58.6 -58.6 -57.8 -57.3 14.1
126 {0x24, 18}, // 24 -14.3 -50.2 -58.5 -58.4 -57.8 -57.4 13.7
127 {0x1D, 14}, // 1D -15.7 -50.7 -58.6 -58.6 -57.8 -57.5 13.3
128 {0x1B, 13}, // 1B -17.0 -51.3 -58.5 -58.4 -57.7 -57.5 13.1
129 {0x19, 16}, // 19 -18.6 -52.0 -58.6 -58.5 -57.8 -57.5 12.9
130 {0x22, 10}, // 22 -19.6 -52.5 -58.5 -58.6 -57.7 -57.4 12.9
131 {0x0D, 15}, // D -21.1 -53.3 -58.6 -58.6 -57.8 -57.4 12.6
132 {0x0B, 12}, // B -22.3 -53.9 -58.6 -58.5 -57.8 -57.4 12.5
133 {0x09, 15}, // 9 -23.8 -54.7 -58.5 -58.5 -57.8 -57.5 12.4
134 {0x21, 10}, // 21 -24.8 -55.1 -58.5 -58.5 -57.7 -57.5 12.5
135 {0x13, 17}, // 13 -26.5 -55.9 -58.6 -58.5 -57.6 -57.6 12.3
136 {0x05, 12}, // 5 -27.7 -56.4 -58.4 -58.4 -57.7 -57.5 12.2
137 {0x12, 12}, // 12 -28.9 -57.1 -58.4 -58.5 -57.7 -57.3 12.2
138};
139
140static const PowerTableItem PA_TABLE_915[] = {
141 {0xC0, 26}, // C0 9.4 -33.5 -58.5 -58.4 -55.8 -32.6 31.8
142 {0xC3, 11}, // C3 8.3 -41.5 -58.6 -58.4 -56.3 -38.0 29.3
143 {0xC6, 11}, // C6 7.2 -42.5 -58.5 -58.4 -56.7 -40.5 27.4
144 {0xC9, 10}, // C9 6.2 -37.6 -58.6 -58.4 -57.2 -38.8 25.9
145 {0xCD, 12}, // CD 5.0 -34.2 -58.6 -58.5 -57.5 -37.3 24.3
146 {0x84, 11}, // 84 3.9 -32.0 -58.6 -58.4 -57.7 -40.1 19.7
147 {0x87, 10}, // 87 2.9 -36.5 -58.4 -58.5 -57.7 -39.6 18.9
148 {0x8A, 11}, // 8A 1.8 -42.2 -58.5 -58.4 -57.7 -39.6 18.1
149 {0x8D, 13}, // 8D 0.5 -46.8 -58.5 -58.5 -57.7 -40.4 17.3
150 {0x8E, 11}, // 8E -0.6 -46.6 -58.5 -58.5 -57.8 -41.1 16.7
151 {0x51, 10}, // 51 -1.6 -38.7 -58.4 -58.5 -57.7 -46.9 16.0
152 {0x3E, 11}, // 3E -2.7 -50.0 -58.5 -58.4 -57.6 -55.3 20.7
153 {0x3B, 11}, // 3B -3.8 -50.7 -58.6 -58.4 -57.6 -55.2 18.9
154 {0x39, 13}, // 39 -5.1 -50.0 -58.5 -58.5 -57.6 -54.0 17.7
155 {0x2B, 13}, // 2B -6.4 -47.6 -58.4 -58.4 -57.8 -52.1 16.5
156 {0x36, 15}, // 36 -7.9 -46.9 -58.5 -58.4 -57.7 -51.2 15.8
157 {0x35, 14}, // 35 -9.3 -46.7 -58.6 -58.4 -57.7 -50.7 15.2
158 {0x26, 16}, // 26 -10.9 -47.0 -58.6 -58.4 -57.8 -50.9 14.5
159 {0x25, 14}, // 25 -12.3 -47.2 -58.6 -58.3 -57.7 -51.0 14.1
160 {0x24, 18}, // 24 -14.1 -48.1 -58.4 -58.4 -57.8 -51.4 13.7
161 {0x1D, 14}, // 1D -15.5 -48.7 -58.4 -58.5 -57.7 -51.9 13.2
162 {0x1B, 13}, // 1B -16.8 -49.3 -58.6 -58.4 -57.8 -52.3 13.0
163 {0x19, 15}, // 19 -18.3 -50.2 -58.5 -58.5 -57.6 -52.8 12.8
164 {0x18, 10}, // 18 -19.3 -50.6 -58.5 -58.5 -57.7 -53.1 12.7
165 {0x17, 10}, // 17 -20.3 -51.2 -58.6 -58.5 -57.8 -53.1 12.6
166 {0x0C, 11}, // C -21.4 -51.8 -58.4 -58.5 -57.7 -53.4 12.5
167 {0x0A, 13}, // A -22.7 -52.6 -58.5 -58.4 -57.7 -53.6 12.4
168 {0x08, 16}, // 8 -24.3 -53.6 -58.4 -58.4 -57.6 -54.1 12.3
169 {0x13, 19}, // 13 -26.2 -54.6 -58.4 -58.5 -57.7 -54.3 12.2
170 {0x05, 11}, // 5 -27.3 -55.3 -58.4 -58.4 -57.8 -54.5 12.1
171 {0x12, 13}, // 12 -28.6 -55.9 -58.6 -58.5 -57.7 -54.7 12.1
172 {0x03, 12}, // 3 -29.8 -56.9 -58.5 -58.4 -57.7 -54.7 12.0
173};
174} // namespace esphome::cc1101
esphome::cc1101::PowerTableItem::find
static uint8_t find(const PowerTableItem *items, size_t count, float &dbm_target)
Definition cc1101pa.h:15
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