GPS module (GYSFDMAXB) 57600 bps
Dependents: HAPS_GPS_Test_0001
GYSFDMAXB GPSセンサーGYSFDMAXBのライブラリ 57600 bps
手順 [1] シリアルピンを設定 GYSFDMAXB gps(tx_pin, rx_pin); [2] 零点を設定する(NED座標系における零点) gps.Initialize(); [3] 自動的にデータを受信しては更新していくので、適宜メンバ変数を読み込んで使う
GYSFDMAXB.cpp@4:8d315f7977b3, 2021-04-22 (annotated)
- Committer:
- cocorlow
- Date:
- Thu Apr 22 12:20:43 2021 +0000
- Revision:
- 4:8d315f7977b3
- Parent:
- 3:f8045f83d7c1
- Child:
- 6:db9f8d2afab7
mbed os 5?
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
cocorlow | 4:8d315f7977b3 | 1 | #include "mbed.h" |
cocorlow | 4:8d315f7977b3 | 2 | #include "GYSFDMAXB.hpp" |
cocorlow | 4:8d315f7977b3 | 3 | #include <string.h> |
cocorlow | 4:8d315f7977b3 | 4 | #include <stdlib.h> |
cocorlow | 4:8d315f7977b3 | 5 | #include "Vector3.hpp" |
cocorlow | 4:8d315f7977b3 | 6 | #include <math.h> |
cocorlow | 4:8d315f7977b3 | 7 | #define M_PI 3.14159265358979f |
cocorlow | 4:8d315f7977b3 | 8 | |
cocorlow | 4:8d315f7977b3 | 9 | GYSFDMAXB::GYSFDMAXB(PinName tx, PinName rx) |
cocorlow | 4:8d315f7977b3 | 10 | :serial(tx, rx), receive_flag(false), start_index(0), uart_index(0) |
cocorlow | 4:8d315f7977b3 | 11 | { |
cocorlow | 4:8d315f7977b3 | 12 | for (int i = 0; i < uart_size; i++) |
cocorlow | 4:8d315f7977b3 | 13 | { |
cocorlow | 4:8d315f7977b3 | 14 | uart_buffer[i] = '\0'; |
cocorlow | 4:8d315f7977b3 | 15 | } |
cocorlow | 4:8d315f7977b3 | 16 | for (int i = 0; i < start_size; i++) |
cocorlow | 4:8d315f7977b3 | 17 | { |
cocorlow | 4:8d315f7977b3 | 18 | uart_start[i] = NULL; |
cocorlow | 4:8d315f7977b3 | 19 | } |
cocorlow | 4:8d315f7977b3 | 20 | serial.baud(57600); |
cocorlow | 4:8d315f7977b3 | 21 | serial.attach(this, &GYSFDMAXB::Receive, Serial::RxIrq); |
cocorlow | 4:8d315f7977b3 | 22 | timer.attach(this, &GYSFDMAXB::Punctuate, 0.01); |
cocorlow | 4:8d315f7977b3 | 23 | } |
cocorlow | 4:8d315f7977b3 | 24 | |
cocorlow | 4:8d315f7977b3 | 25 | void GYSFDMAXB::Receive() |
cocorlow | 4:8d315f7977b3 | 26 | { |
cocorlow | 4:8d315f7977b3 | 27 | while (serial.readable()) |
cocorlow | 4:8d315f7977b3 | 28 | { |
cocorlow | 4:8d315f7977b3 | 29 | char c; |
cocorlow | 4:8d315f7977b3 | 30 | c = serial.getc(); |
cocorlow | 4:8d315f7977b3 | 31 | if (c == '$') |
cocorlow | 4:8d315f7977b3 | 32 | { |
cocorlow | 4:8d315f7977b3 | 33 | uart_buffer[uart_index] = c; |
cocorlow | 4:8d315f7977b3 | 34 | uart_start[start_index] = &(uart_buffer[uart_index]); |
cocorlow | 4:8d315f7977b3 | 35 | uart_index = (uart_index + 1) % uart_size; |
cocorlow | 4:8d315f7977b3 | 36 | } |
cocorlow | 4:8d315f7977b3 | 37 | else if (c == '\r') |
cocorlow | 4:8d315f7977b3 | 38 | { |
cocorlow | 4:8d315f7977b3 | 39 | } |
cocorlow | 4:8d315f7977b3 | 40 | else if (c == '\n') |
cocorlow | 4:8d315f7977b3 | 41 | { |
cocorlow | 4:8d315f7977b3 | 42 | start_index = (start_index + 1) % start_size; |
cocorlow | 4:8d315f7977b3 | 43 | uart_buffer[uart_index] = '\0'; |
cocorlow | 4:8d315f7977b3 | 44 | receive_flag = true; |
cocorlow | 4:8d315f7977b3 | 45 | uart_index = (uart_index + 1) % uart_size; |
cocorlow | 4:8d315f7977b3 | 46 | } |
cocorlow | 4:8d315f7977b3 | 47 | else |
cocorlow | 4:8d315f7977b3 | 48 | { |
cocorlow | 4:8d315f7977b3 | 49 | uart_buffer[uart_index] = c; |
cocorlow | 4:8d315f7977b3 | 50 | uart_index = (uart_index + 1) % uart_size; |
cocorlow | 4:8d315f7977b3 | 51 | } |
cocorlow | 4:8d315f7977b3 | 52 | } |
cocorlow | 4:8d315f7977b3 | 53 | } |
cocorlow | 4:8d315f7977b3 | 54 | |
cocorlow | 4:8d315f7977b3 | 55 | void GYSFDMAXB::Punctuate() |
cocorlow | 4:8d315f7977b3 | 56 | { |
cocorlow | 4:8d315f7977b3 | 57 | volatile static int counter = 0; |
cocorlow | 4:8d315f7977b3 | 58 | const int delay = 2; |
cocorlow | 4:8d315f7977b3 | 59 | if (receive_flag) |
cocorlow | 4:8d315f7977b3 | 60 | { |
cocorlow | 4:8d315f7977b3 | 61 | counter++; |
cocorlow | 4:8d315f7977b3 | 62 | } |
cocorlow | 4:8d315f7977b3 | 63 | if (counter >= delay) |
cocorlow | 4:8d315f7977b3 | 64 | { |
cocorlow | 4:8d315f7977b3 | 65 | counter = 0; |
cocorlow | 4:8d315f7977b3 | 66 | Update(); |
cocorlow | 4:8d315f7977b3 | 67 | receive_flag = false; |
cocorlow | 4:8d315f7977b3 | 68 | } |
cocorlow | 4:8d315f7977b3 | 69 | } |
cocorlow | 4:8d315f7977b3 | 70 | |
cocorlow | 4:8d315f7977b3 | 71 | void GYSFDMAXB::Update() |
cocorlow | 4:8d315f7977b3 | 72 | { |
cocorlow | 4:8d315f7977b3 | 73 | // if (receive_flag){ |
cocorlow | 4:8d315f7977b3 | 74 | for (int i = 0; i < start_size; i++) |
cocorlow | 4:8d315f7977b3 | 75 | { |
cocorlow | 4:8d315f7977b3 | 76 | if (uart_start[i] != NULL) |
cocorlow | 4:8d315f7977b3 | 77 | { |
cocorlow | 4:8d315f7977b3 | 78 | char str[256]; |
cocorlow | 4:8d315f7977b3 | 79 | char* p[16]; |
cocorlow | 4:8d315f7977b3 | 80 | int p_index = 0; |
cocorlow | 4:8d315f7977b3 | 81 | for (int j = 0; j < 16; j++) |
cocorlow | 4:8d315f7977b3 | 82 | { |
cocorlow | 4:8d315f7977b3 | 83 | p[j] = NULL; |
cocorlow | 4:8d315f7977b3 | 84 | } |
cocorlow | 4:8d315f7977b3 | 85 | strcpy(str, uart_start[i]); |
cocorlow | 4:8d315f7977b3 | 86 | |
cocorlow | 4:8d315f7977b3 | 87 | |
cocorlow | 4:8d315f7977b3 | 88 | char checksum = 0; |
cocorlow | 4:8d315f7977b3 | 89 | int c_i = 1; |
cocorlow | 4:8d315f7977b3 | 90 | while (str[c_i] !='*') |
cocorlow | 4:8d315f7977b3 | 91 | { |
cocorlow | 4:8d315f7977b3 | 92 | checksum ^= str[c_i]; |
cocorlow | 4:8d315f7977b3 | 93 | c_i++; |
cocorlow | 4:8d315f7977b3 | 94 | } |
cocorlow | 4:8d315f7977b3 | 95 | char data_checksum = 0; |
cocorlow | 4:8d315f7977b3 | 96 | char cc; |
cocorlow | 4:8d315f7977b3 | 97 | cc = str[c_i+1]; |
cocorlow | 4:8d315f7977b3 | 98 | if ('0' <= cc && cc <= '9') |
cocorlow | 4:8d315f7977b3 | 99 | data_checksum += (cc-'0')*16; |
cocorlow | 4:8d315f7977b3 | 100 | else |
cocorlow | 4:8d315f7977b3 | 101 | data_checksum += ((cc-'A')+10)*16; |
cocorlow | 4:8d315f7977b3 | 102 | cc = str[c_i+2]; |
cocorlow | 4:8d315f7977b3 | 103 | if ('0' <= cc && cc <= '9') |
cocorlow | 4:8d315f7977b3 | 104 | data_checksum += (cc-'0'); |
cocorlow | 4:8d315f7977b3 | 105 | else |
cocorlow | 4:8d315f7977b3 | 106 | data_checksum += ((cc-'A')+10); |
cocorlow | 4:8d315f7977b3 | 107 | if (data_checksum != checksum) |
cocorlow | 4:8d315f7977b3 | 108 | { |
cocorlow | 4:8d315f7977b3 | 109 | continue; |
cocorlow | 4:8d315f7977b3 | 110 | } |
cocorlow | 4:8d315f7977b3 | 111 | |
cocorlow | 4:8d315f7977b3 | 112 | |
cocorlow | 4:8d315f7977b3 | 113 | int j = 0; |
cocorlow | 4:8d315f7977b3 | 114 | p[p_index] = str; |
cocorlow | 4:8d315f7977b3 | 115 | p_index++; |
cocorlow | 4:8d315f7977b3 | 116 | while (1) |
cocorlow | 4:8d315f7977b3 | 117 | { |
cocorlow | 4:8d315f7977b3 | 118 | if (str[j] == ',') |
cocorlow | 4:8d315f7977b3 | 119 | { |
cocorlow | 4:8d315f7977b3 | 120 | p[p_index] = &(str[j + 1]); |
cocorlow | 4:8d315f7977b3 | 121 | p_index++; |
cocorlow | 4:8d315f7977b3 | 122 | str[j] = '\0'; |
cocorlow | 4:8d315f7977b3 | 123 | } |
cocorlow | 4:8d315f7977b3 | 124 | else if (str[j] == '\0') |
cocorlow | 4:8d315f7977b3 | 125 | { |
cocorlow | 4:8d315f7977b3 | 126 | break; |
cocorlow | 4:8d315f7977b3 | 127 | } |
cocorlow | 4:8d315f7977b3 | 128 | j++; |
cocorlow | 4:8d315f7977b3 | 129 | } |
cocorlow | 4:8d315f7977b3 | 130 | |
cocorlow | 4:8d315f7977b3 | 131 | |
cocorlow | 4:8d315f7977b3 | 132 | if (strcmp(p[0], "$GPGGA") == 0) |
cocorlow | 4:8d315f7977b3 | 133 | { |
cocorlow | 4:8d315f7977b3 | 134 | if (p[6][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 135 | Quality = atoi(p[6]); |
cocorlow | 4:8d315f7977b3 | 136 | Satellites = 0; |
cocorlow | 4:8d315f7977b3 | 137 | if (p[7][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 138 | Satellites = atoi(p[7]); |
cocorlow | 4:8d315f7977b3 | 139 | if (p[8][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 140 | HDOP = atof(p[8]); |
cocorlow | 4:8d315f7977b3 | 141 | if (p[9][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 142 | Elevation = atof(p[9]); |
cocorlow | 4:8d315f7977b3 | 143 | UnitElevation = p[10][0]; |
cocorlow | 4:8d315f7977b3 | 144 | if (p[11][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 145 | GeoidElevation = atof(p[11]); |
cocorlow | 4:8d315f7977b3 | 146 | UnitGeoidElevation = p[10][0]; |
cocorlow | 4:8d315f7977b3 | 147 | } |
cocorlow | 4:8d315f7977b3 | 148 | else if (strcmp(p[0], "$GPGLL") == 0) |
cocorlow | 4:8d315f7977b3 | 149 | { |
cocorlow | 4:8d315f7977b3 | 150 | } |
cocorlow | 4:8d315f7977b3 | 151 | else if (strcmp(p[0], "$GPGSA") == 0) |
cocorlow | 4:8d315f7977b3 | 152 | { |
cocorlow | 4:8d315f7977b3 | 153 | } |
cocorlow | 4:8d315f7977b3 | 154 | else if (strcmp(p[0], "$GPGSV") == 0) |
cocorlow | 4:8d315f7977b3 | 155 | { |
cocorlow | 4:8d315f7977b3 | 156 | } |
cocorlow | 4:8d315f7977b3 | 157 | else if (strcmp(p[0], "$GPRMC") == 0) |
cocorlow | 4:8d315f7977b3 | 158 | { |
cocorlow | 4:8d315f7977b3 | 159 | float _ms_deg_1; |
cocorlow | 4:8d315f7977b3 | 160 | int _ms_deg_2; |
cocorlow | 4:8d315f7977b3 | 161 | Hours = (p[1][0]-'0')*10+(p[1][1]-'0'); |
cocorlow | 4:8d315f7977b3 | 162 | Minutes = (p[1][2]-'0')*10+(p[1][3]-'0'); |
cocorlow | 4:8d315f7977b3 | 163 | Seconds = (p[1][4]-'0')*10+(p[1][5]-'0'); |
cocorlow | 4:8d315f7977b3 | 164 | Milliseconds = (p[1][7]-'0')*100+(p[1][8]-'0')*10+(p[1][9]-'0'); |
cocorlow | 4:8d315f7977b3 | 165 | Status = p[2][0]; |
cocorlow | 4:8d315f7977b3 | 166 | if (p[3][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 167 | { |
cocorlow | 4:8d315f7977b3 | 168 | _ms_deg_1 = atof(p[3]); |
cocorlow | 4:8d315f7977b3 | 169 | _ms_deg_2 = (int)_ms_deg_1 / 100; |
cocorlow | 4:8d315f7977b3 | 170 | Latitude = _ms_deg_2 + (_ms_deg_1-100.0f*_ms_deg_2)/60.0f; |
cocorlow | 4:8d315f7977b3 | 171 | } |
cocorlow | 4:8d315f7977b3 | 172 | N_S = p[4][0]; |
cocorlow | 4:8d315f7977b3 | 173 | if (p[5][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 174 | { |
cocorlow | 4:8d315f7977b3 | 175 | _ms_deg_1 = atof(p[5]); |
cocorlow | 4:8d315f7977b3 | 176 | _ms_deg_2 = (int)_ms_deg_1 / 100; |
cocorlow | 4:8d315f7977b3 | 177 | Longitude = _ms_deg_2 + (_ms_deg_1-100.0f*_ms_deg_2)/60.0f; |
cocorlow | 4:8d315f7977b3 | 178 | } |
cocorlow | 4:8d315f7977b3 | 179 | E_W = p[6][0]; |
cocorlow | 4:8d315f7977b3 | 180 | if (p[7][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 181 | Speed = atof(p[7]); |
cocorlow | 4:8d315f7977b3 | 182 | if (p[8][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 183 | Direction = atof(p[8]); |
cocorlow | 4:8d315f7977b3 | 184 | Day = (p[9][0]-'0')*10+(p[9][1]-'0'); |
cocorlow | 4:8d315f7977b3 | 185 | Month = (p[9][2]-'0')*10+(p[9][3]-'0'); |
cocorlow | 4:8d315f7977b3 | 186 | Year = (p[9][4]-'0')*10+(p[9][5]-'0'); |
cocorlow | 4:8d315f7977b3 | 187 | if (p[10][0] != '\0') |
cocorlow | 4:8d315f7977b3 | 188 | GeomagneticDeclination = atof(p[10]); |
cocorlow | 4:8d315f7977b3 | 189 | GeomagneticE_W = p[11][0]; |
cocorlow | 4:8d315f7977b3 | 190 | Mode = p[12][0]; |
cocorlow | 4:8d315f7977b3 | 191 | } |
cocorlow | 4:8d315f7977b3 | 192 | else if (strcmp(p[0], "$GPVTG") == 0) |
cocorlow | 4:8d315f7977b3 | 193 | { |
cocorlow | 4:8d315f7977b3 | 194 | } |
cocorlow | 4:8d315f7977b3 | 195 | else if (strcmp(p[0], "$GPZDA") == 0) |
cocorlow | 4:8d315f7977b3 | 196 | { |
cocorlow | 4:8d315f7977b3 | 197 | uart_index = 0; |
cocorlow | 4:8d315f7977b3 | 198 | } |
cocorlow | 4:8d315f7977b3 | 199 | |
cocorlow | 4:8d315f7977b3 | 200 | uart_start[i] = NULL; |
cocorlow | 4:8d315f7977b3 | 201 | } |
cocorlow | 4:8d315f7977b3 | 202 | } |
cocorlow | 4:8d315f7977b3 | 203 | // receive_flag = false; |
cocorlow | 3:f8045f83d7c1 | 204 | // } |
cocorlow | 4:8d315f7977b3 | 205 | } |
cocorlow | 4:8d315f7977b3 | 206 | |
cocorlow | 4:8d315f7977b3 | 207 | void GYSFDMAXB::Initialize() |
cocorlow | 4:8d315f7977b3 | 208 | { |
cocorlow | 4:8d315f7977b3 | 209 | Satellites = 0; |
cocorlow | 4:8d315f7977b3 | 210 | while (Satellites <= 4 || Latitude == 0.0f || Longitude == 0.0f || Elevation == 0.0f) |
cocorlow | 4:8d315f7977b3 | 211 | { |
cocorlow | 4:8d315f7977b3 | 212 | Update(); |
cocorlow | 4:8d315f7977b3 | 213 | } |
cocorlow | 4:8d315f7977b3 | 214 | CalcurateUnit(); |
cocorlow | 4:8d315f7977b3 | 215 | } |
cocorlow | 4:8d315f7977b3 | 216 | |
cocorlow | 4:8d315f7977b3 | 217 | Vector3 GYSFDMAXB::ToUniversalUnit() |
cocorlow | 4:8d315f7977b3 | 218 | { |
cocorlow | 4:8d315f7977b3 | 219 | // 東経180度、北緯0度で精度最大 |
cocorlow | 4:8d315f7977b3 | 220 | float pi_2_theta = (Latitude * ((N_S == 'N') ? 1.0f : -1.0f)) * M_PI / 180.0f; |
cocorlow | 4:8d315f7977b3 | 221 | float pi_phi = ((E_W == 'E') ? Longitude - 180.0f : 180.0f - Longitude) * M_PI / 180.0f; |
cocorlow | 4:8d315f7977b3 | 222 | float x = - cosf(pi_2_theta) * cosf(pi_phi); |
cocorlow | 4:8d315f7977b3 | 223 | float y = - cosf(pi_2_theta) * sinf(pi_phi); |
cocorlow | 4:8d315f7977b3 | 224 | float z = sinf(pi_2_theta); |
cocorlow | 4:8d315f7977b3 | 225 | Vector3 v(x, y, z); |
cocorlow | 4:8d315f7977b3 | 226 | return v; |
cocorlow | 4:8d315f7977b3 | 227 | } |
cocorlow | 4:8d315f7977b3 | 228 | |
cocorlow | 4:8d315f7977b3 | 229 | Vector3 GYSFDMAXB::ToUniversal() |
cocorlow | 4:8d315f7977b3 | 230 | { |
cocorlow | 4:8d315f7977b3 | 231 | Vector3 v = ToUniversalUnit(); |
cocorlow | 4:8d315f7977b3 | 232 | return (Radius + Elevation) * v; |
cocorlow | 4:8d315f7977b3 | 233 | } |
cocorlow | 4:8d315f7977b3 | 234 | |
cocorlow | 4:8d315f7977b3 | 235 | void GYSFDMAXB::CalcurateUnit() |
cocorlow | 4:8d315f7977b3 | 236 | { |
cocorlow | 4:8d315f7977b3 | 237 | Vector3 _d = -1.0f * ToUniversalUnit(); |
cocorlow | 4:8d315f7977b3 | 238 | |
cocorlow | 4:8d315f7977b3 | 239 | UniversalZeroPosition = -(Radius+Elevation)*_d; |
cocorlow | 4:8d315f7977b3 | 240 | Vector3 _z(0.0f, 0.0f, 1.0f); |
cocorlow | 4:8d315f7977b3 | 241 | Vector3 _e = _d * _z; |
cocorlow | 4:8d315f7977b3 | 242 | Vector3 _n = _e * _d; |
cocorlow | 4:8d315f7977b3 | 243 | UniversalZeroUnitN = _n; |
cocorlow | 4:8d315f7977b3 | 244 | UniversalZeroUnitE = _e; |
cocorlow | 4:8d315f7977b3 | 245 | UniversalZeroUnitD = _d; |
cocorlow | 4:8d315f7977b3 | 246 | } |
cocorlow | 4:8d315f7977b3 | 247 | |
cocorlow | 4:8d315f7977b3 | 248 | void GYSFDMAXB::Calcurate() |
cocorlow | 4:8d315f7977b3 | 249 | { |
cocorlow | 4:8d315f7977b3 | 250 | UniversalPosition = ToUniversal(); |
cocorlow | 4:8d315f7977b3 | 251 | Vector3 relative = UniversalPosition - UniversalZeroPosition; |
cocorlow | 4:8d315f7977b3 | 252 | Vector3 _position(relative % UniversalZeroUnitN, relative % UniversalZeroUnitE, relative % UniversalZeroUnitD); |
cocorlow | 4:8d315f7977b3 | 253 | Position = _position; |
cocorlow | 4:8d315f7977b3 | 254 | } |
cocorlow | 4:8d315f7977b3 | 255 | |
cocorlow | 4:8d315f7977b3 | 256 | Vector3 GYSFDMAXB::Calcurate(Vector3 position) |
cocorlow | 4:8d315f7977b3 | 257 | { |
cocorlow | 4:8d315f7977b3 | 258 | UniversalPosition = ToUniversal(); |
cocorlow | 4:8d315f7977b3 | 259 | Vector3 relative = position - UniversalZeroPosition; |
cocorlow | 4:8d315f7977b3 | 260 | Vector3 _position(relative % UniversalZeroUnitN, relative % UniversalZeroUnitE, relative % UniversalZeroUnitD); |
cocorlow | 4:8d315f7977b3 | 261 | return _position; |
cocorlow | 4:8d315f7977b3 | 262 | } |