149, //;-39 1
159, //;-38 2
168, //;-37 3
178, //;-36 4
188, //;-35 5
199, //;-34 6
210, //;-33 7
222, //;-32 8
233, //;-31 9
246, //;-30 10
259, //;-29 11
272, //;-28 12
286, //;-27 13
301, //;-26 14
317, //;-25 15
333, //;-24 16
349, //;-23 17
367, //;-22 18
385, //;-21 19
403, //;-20 20
423, //;-19 21
443, //;-18 22
464, //;-17 23
486, //;-16 24
509, //;-15 25
533, //;-14 26
558, //;-13 27
583, //;-12 28
610, //;-11 29
638, //;-10 30
667, //;-9 31
696, //;-8 32
727, //;-7 33
758, //;-6 34
791, //;-5 35
824, //;-4 36
858, //;-3 37
893, //;-2 38
929, //;-1 39
965, //;0 40
1003, //;1 41
1041, //;2 42
1080, //;3 43
1119, //;4 44
1160, //;5 45
1201, //;6 46
1243, //;7 47
1285, //;8 48
1328, //;9 49
1371, //;10 50
1414, //;11 51
1459, //;12 52
1503, //;13 53
1548, //;14 54
1593, //;15 55
1638, //;16 56
1684, //;17 57
1730, //;18 58
1775, //;19 59
1821, //;20 60
1867, //;21 61
1912, //;22 62
1958, //;23 63
2003, //;24 64
2048, //;25 65
2093, //;26 66
2137, //;27 67
2182, //;28 68
2225, //;29 69
2269, //;30 70
2312, //;31 71
2354, //;32 72
2397, //;33 73
2438, //;34 74
2479, //;35 75
2519, //;36 76
2559, //;37 77
2598, //;38 78
2637, //;39 79
2675, //;40 80
2712, //;41 81
2748, //;42 82
2784, //;43 83
2819, //;44 84
2853, //;45 85
2887, //;46 86
2920, //;47 87
2952, //;48 88
2984, //;49 89
3014, //;50 90
3044, //;51 91
3073, //;52 92
3102, //;53 93
3130, //;54 94
3157, //;55 95
3183, //;56 96
3209, //;57 97
3234, //;58 98
3259, //;59 99
3283, //;60 100
3306, //;61 101
3328, //;62 102
3351, //;63 103
3372, //;64 104
3393, //;65 105
3413, //;66 106
3432, //;67 107
3452, //;68 108
3470, //;69 109
3488, //;70 110
3506, //;71 111
3523, //;72 112
3539, //;73 113
3555, //;74 114
3571, //;75 115
3586, //;76 116
3601, //;77 117
3615, //;78 118
3628, //;79 119
3642, //;80 120
3655, //;81 121
3667, //;82 122
3679, //;83 123
3691, //;84 124
3702, //;85 125
3714, //;86 126
3724, //;87 127
3735, //;88 128
3745, //;89 129
3754, //;90 130
3764, //;91 131
3773, //;92 132
3782, //;93 133
3791, //;94 134
3799, //;95 135
3807, //;96 136
3815, //;97 137
3822, //;98 138
3830, //;99 139
3837, //;100 140
3844, //;101 141
3850, //;102 142
3857, //;103 143
3863, //;104 144
3869, //;105 145
3875, //;106 146
3881, //;107 147
3887, //;108 148
3892, //;109 149
3897, //;110 150
3902, //;111 151
3907, //;112 152
3912, //;113 153
3917, //;114 154
3921, //;115 155
3926, //;116 156
3930, //;117 157
3934, //;118 158
3938, //;119 159
3942 //;120 160
};
/******************** Calculate temperature***********************************************/
// Calculation result: 0 corresponds to -40.0 degrees, 400 corresponds to 0 degrees, 625 corresponds to 25.0 degrees, and the maximum 1600 corresponds to 120.0 degrees.
// For universal use, ADC input is a 12-bit ADC value.
// Circuit and software algorithm design: Coody
/**************************************************/
#define D_SCALE 10 //Result magnification, magnification 10 times means retaining one decimal place
u16 get_temperature(u16 adc)
{
u16 code *p;
u16 i;
u8 j,k,min,max;
adc = 4096 - adc; //Rt ground
p = temp_table;
if(adc < p[0]) return (0xfffe);
if(adc > p[160]) return (0xffff);
min = 0; //-40 degrees
max = 160; //120 degrees
for(j=0; j<5; j++) //Bifurcation table lookup
{
k = min / 2 + max / 2;
if(adc <= p[k]) max = k;
else min = k;
}
if(adc == p[min]) i = min * D_SCALE;
else if(adc == p[max]) i = max * D_SCALE;
else // min < temp < max
{
while(min <= max)
{
min++;
if(adc == p[min]) {i = min * D_SCALE; break;}
else if(adc < p[min])
{
min--;
i = p[min]; //min
……………………
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