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41 | ingob | 1 | /*#######################################################################################*/ |
2 | /* !!! THIS IS NOT FREE SOFTWARE !!! */ |
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3 | /*#######################################################################################*/ |
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4 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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5 | // + www.MikroKopter.com |
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6 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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360 | holgerb | 7 | // + Software Nutzungsbedingungen (english version: see below) |
8 | // + der Fa. HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland - nachfolgend Lizenzgeber genannt - |
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9 | // + Der Lizenzgeber räumt dem Kunden ein nicht-ausschließliches, zeitlich und räumlich* unbeschränktes Recht ein, die im den |
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515 | killagreg | 10 | // + Mikrocontroller verwendete Firmware für die Hardware Flight-Ctrl, Navi-Ctrl, BL-Ctrl, MK3Mag & PC-Programm MikroKopter-Tool |
360 | holgerb | 11 | // + - nachfolgend Software genannt - nur für private Zwecke zu nutzen. |
12 | // + Der Einsatz dieser Software ist nur auf oder mit Produkten des Lizenzgebers zulässig. |
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41 | ingob | 13 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
360 | holgerb | 14 | // + Die vom Lizenzgeber gelieferte Software ist urheberrechtlich geschützt. Alle Rechte an der Software sowie an sonstigen im |
15 | // + Rahmen der Vertragsanbahnung und Vertragsdurchführung überlassenen Unterlagen stehen im Verhältnis der Vertragspartner ausschließlich dem Lizenzgeber zu. |
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16 | // + Die in der Software enthaltenen Copyright-Vermerke, Markenzeichen, andere Rechtsvorbehalte, Seriennummern sowie |
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17 | // + sonstige der Programmidentifikation dienenden Merkmale dürfen vom Kunden nicht verändert oder unkenntlich gemacht werden. |
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18 | // + Der Kunde trifft angemessene Vorkehrungen für den sicheren Einsatz der Software. Er wird die Software gründlich auf deren |
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19 | // + Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt. |
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20 | // + Die Haftung des Lizenzgebers wird - soweit gesetzlich zulässig - begrenzt in Höhe des typischen und vorhersehbaren |
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515 | killagreg | 21 | // + Schadens. Die gesetzliche Haftung bei Personenschäden und nach dem Produkthaftungsgesetz bleibt unberührt. Dem Lizenzgeber steht jedoch der Einwand |
360 | holgerb | 22 | // + des Mitverschuldens offen. |
23 | // + Der Kunde trifft angemessene Vorkehrungen für den Fall, dass die Software ganz oder teilweise nicht ordnungsgemäß arbeitet. |
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24 | // + Er wird die Software gründlich auf deren Verwendbarkeit zu dem von ihm beabsichtigten Zweck testen, bevor er diese operativ einsetzt. |
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25 | // + Der Kunde wird er seine Daten vor Einsatz der Software nach dem Stand der Technik sichern. |
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26 | // + Der Kunde ist darüber unterrichtet, dass der Lizenzgeber seine Daten im zur Vertragsdurchführung erforderlichen Umfang |
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27 | // + und auf Grundlage der Datenschutzvorschriften erhebt, speichert, verarbeitet und, sofern notwendig, an Dritte übermittelt. |
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28 | // + *) Die räumliche Nutzung bezieht sich nur auf den Einsatzort, nicht auf die Reichweite der programmierten Software. |
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29 | // + #### ENDE DER NUTZUNGSBEDINGUNGEN ####' |
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30 | // + Hinweis: Informationen über erweiterte Nutzungsrechte (wie z.B. Nutzung für nicht-private Zwecke) sind auf Anfrage per Email an info(@)hisystems.de verfügbar. |
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41 | ingob | 31 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
360 | holgerb | 32 | // + Software LICENSING TERMS |
41 | ingob | 33 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
360 | holgerb | 34 | // + of HiSystems GmbH, Flachsmeerstrasse 2, 26802 Moormerland, Germany - the Licensor - |
515 | killagreg | 35 | // + The Licensor grants the customer a non-exclusive license to use the microcontroller firmware of the Flight-Ctrl, Navi-Ctrl, BL-Ctrl, and MK3Mag hardware |
360 | holgerb | 36 | // + (the Software) exclusively for private purposes. The License is unrestricted with respect to time and territory*. |
37 | // + The Software may only be used with the Licensor's products. |
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38 | // + The Software provided by the Licensor is protected by copyright. With respect to the relationship between the parties to this |
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39 | // + agreement, all rights pertaining to the Software and other documents provided during the preparation and execution of this |
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40 | // + agreement shall be the property of the Licensor. |
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41 | // + The information contained in the Software copyright notices, trademarks, other legal reservations, serial numbers and other |
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42 | // + features that can be used to identify the program may not be altered or defaced by the customer. |
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43 | // + The customer shall be responsible for taking reasonable precautions |
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44 | // + for the safe use of the Software. The customer shall test the Software thoroughly regarding its suitability for the |
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45 | // + intended purpose before implementing it for actual operation. The Licensor's liability shall be limited to the extent of typical and |
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46 | // + foreseeable damage to the extent permitted by law, notwithstanding statutory liability for bodily injury and product |
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47 | // + liability. However, the Licensor shall be entitled to the defense of contributory negligence. |
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48 | // + The customer will take adequate precautions in the case, that the software is not working properly. The customer will test |
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49 | // + the software for his purpose before any operational usage. The customer will backup his data before using the software. |
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50 | // + The customer understands that the Licensor collects, stores and processes, and, where required, forwards, customer data |
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51 | // + to third parties to the extent necessary for executing the agreement, subject to applicable data protection and privacy regulations. |
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52 | // + *) The territory aspect only refers to the place where the Software is used, not its programmed range. |
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53 | // + #### END OF LICENSING TERMS #### |
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54 | // + Note: For information on license extensions (e.g. commercial use), please contact us at info(@)hisystems.de. |
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41 | ingob | 55 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
263 | killagreg | 56 | #include <string.h> |
41 | ingob | 57 | #include "91x_lib.h" |
700 | holgerb | 58 | #include "uart0.h" |
41 | ingob | 59 | #include "uart1.h" |
60 | #include "ubx.h" |
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645 | holgerb | 61 | #include "main.h" |
41 | ingob | 62 | #include "led.h" |
119 | killagreg | 63 | #include "timer1.h" |
561 | holgerb | 64 | #include "GPS.h" |
41 | ingob | 65 | |
66 | // ------------------------------------------------------------------------------------------------ |
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67 | // defines |
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68 | |||
69 | #define DAYS_FROM_JAN01YEAR0001_TO_JAN6_1980 722819 // the year 0 does not exist! |
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70 | #define DAYS_PER_YEAR 365 |
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71 | #define DAYS_PER_LEAPYEAR 366 |
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72 | #define DAYS_PER_4YEARS 1461 //((3 * DAYS_PER_YEAR) + DAYS_PER_LEAPYEAR) // years dividable by 4 are leap years |
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73 | #define DAYS_PER_100YEARS 36524 //((25 * DAYS_PER_4YEARS) - 1) // years dividable by 100 are no leap years |
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74 | #define DAYS_PER_400YEARS 146097 //((4 * DAYS_PER_100YEARS) + 1L) // but years dividable by 400 are leap years |
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75 | #define SECONDS_PER_MINUTE 60 |
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76 | #define MINUTES_PER_HOUR 60 |
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77 | #define HOURS_PER_DAY 24 |
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78 | #define DAYS_PER_WEEK 7 |
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79 | #define SECONDS_PER_HOUR 3600 //(SECONDS_PER_MINUTE * MINUTES_PER_HOUR) |
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80 | #define SECONDS_PER_DAY 86400 //(SECONDS_PER_HOUR * HOURS_PER_DAY) |
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81 | #define SECONDS_PER_WEEK 604800 //(SECONDS_PER_DAY * DAYS_PER_WEEK) |
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82 | |||
83 | // days per month in normal and leap years |
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84 | const u32 Leap[ 13 ] = { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }; |
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85 | const u32 Normal[ 13 ] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }; |
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86 | |||
427 | killagreg | 87 | #define LEAP_SECONDS_FROM_1980 16 |
41 | ingob | 88 | |
89 | // message sync bytes |
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90 | #define UBX_SYNC1_CHAR 0xB5 |
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91 | #define UBX_SYNC2_CHAR 0x62 |
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245 | killagreg | 92 | // protocoll identifiers |
93 | // navigation class |
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41 | ingob | 94 | #define UBX_CLASS_NAV 0x01 |
700 | holgerb | 95 | #define UBX_CLASS_MON 0x0A |
96 | |||
41 | ingob | 97 | #define UBX_ID_POSLLH 0x02 |
98 | #define UBX_ID_SOL 0x06 |
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99 | #define UBX_ID_VELNED 0x12 |
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247 | killagreg | 100 | |
700 | holgerb | 101 | #define UBX_ID_MON_VER 0x04 |
102 | |||
41 | ingob | 103 | // ------------------------------------------------------------------------------------------------ |
104 | // typedefs |
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105 | |||
106 | |||
107 | // ubx parser state |
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108 | typedef enum |
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109 | { |
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110 | UBXSTATE_IDLE, |
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111 | UBXSTATE_SYNC1, |
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112 | UBXSTATE_SYNC2, |
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113 | UBXSTATE_CLASS, |
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114 | UBXSTATE_LEN1, |
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115 | UBXSTATE_LEN2, |
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116 | UBXSTATE_DATA, |
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117 | UBXSTATE_CKA, |
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118 | UBXSTATE_CKB |
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119 | } ubxState_t; |
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120 | |||
121 | typedef struct |
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122 | { |
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123 | u32 itow; // ms GPS Millisecond Time of Week |
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124 | s32 frac; // ns remainder of rounded ms above |
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125 | s16 week; // GPS week |
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126 | u8 GPSfix; // GPSfix Type, range 0..6 |
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127 | u8 Flags; // Navigation Status Flags |
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128 | s32 ECEF_X; // cm ECEF X coordinate |
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129 | s32 ECEF_Y; // cm ECEF Y coordinate |
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130 | s32 ECEF_Z; // cm ECEF Z coordinate |
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131 | u32 PAcc; // cm 3D Position Accuracy Estimate |
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132 | s32 ECEFVX; // cm/s ECEF X velocity |
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133 | s32 ECEFVY; // cm/s ECEF Y velocity |
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134 | s32 ECEFVZ; // cm/s ECEF Z velocity |
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135 | u32 SAcc; // cm/s Speed Accuracy Estimate |
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136 | u16 PDOP; // 0.01 Position DOP |
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137 | u8 res1; // reserved |
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138 | u8 numSV; // Number of SVs used in navigation solution |
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139 | u32 res2; // reserved |
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52 | killagreg | 140 | u8 Status; // invalid/newdata/processed |
41 | ingob | 141 | } __attribute__((packed)) ubx_nav_sol_t; |
142 | |||
143 | |||
144 | typedef struct |
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145 | { |
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146 | u32 itow; // ms GPS Millisecond Time of Week |
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147 | s32 VEL_N; // cm/s NED north velocity |
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148 | s32 VEL_E; // cm/s NED east velocity |
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149 | s32 VEL_D; // cm/s NED down velocity |
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150 | u32 Speed; // cm/s Speed (3-D) |
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151 | u32 GSpeed; // cm/s Ground Speed (2-D) |
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152 | s32 Heading; // 1e-05 deg Heading 2-D |
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153 | u32 SAcc; // cm/s Speed Accuracy Estimate |
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154 | u32 CAcc; // deg Course / Heading Accuracy Estimate |
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52 | killagreg | 155 | u8 Status; // invalid/newdata/processed |
41 | ingob | 156 | } __attribute__((packed)) ubx_nav_velned_t; |
157 | |||
158 | typedef struct |
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159 | { |
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160 | u32 itow; // ms GPS Millisecond Time of Week |
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161 | s32 LON; // 1e-07 deg Longitude |
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162 | s32 LAT; // 1e-07 deg Latitude |
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163 | s32 HEIGHT; // mm Height above Ellipsoid |
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164 | s32 HMSL; // mm Height above mean sea level |
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165 | u32 Hacc; // mm Horizontal Accuracy Estimate |
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166 | u32 Vacc; // mm Vertical Accuracy Estimate |
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52 | killagreg | 167 | u8 Status; // invalid/newdata/processed |
41 | ingob | 168 | } __attribute__((packed)) ubx_nav_posllh_t; |
169 | |||
170 | //------------------------------------------------------------------------------------ |
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171 | // global variables |
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172 | |||
173 | // local buffers for the incomming ubx messages |
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263 | killagreg | 174 | ubx_nav_sol_t UbxSol = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, INVALID}; |
175 | ubx_nav_posllh_t UbxPosLlh = {0,0,0,0,0,0,0, INVALID}; |
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176 | ubx_nav_velned_t UbxVelNed = {0,0,0,0,0,0,0,0,0, INVALID}; |
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177 | ubxmsg_t UbxMsg; |
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41 | ingob | 178 | |
179 | // shared buffer |
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244 | killagreg | 180 | gps_data_t GPSData = {200,{0,0,0,INVALID},0,0,0,0,0,0,0, INVALID}; |
41 | ingob | 181 | DateTime_t GPSDateTime = {0,0,0,0,0,0,0, INVALID}; |
182 | |||
146 | killagreg | 183 | #define UBX_TIMEOUT 500 // 500 ms |
184 | u32 UBX_Timeout = 0; |
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41 | ingob | 185 | |
186 | //------------------------------------------------------------------------------------ |
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187 | // functions |
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188 | |||
189 | u8 IsLeapYear(u16 year) |
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190 | { |
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191 | if((year%400 == 0) || ( (year%4 == 0) && (year%100 != 0) ) ) return 1; |
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192 | else return 0; |
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193 | } |
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194 | /********************************************************/ |
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195 | /* Calculates the UTC Time from the GPS week and tow */ |
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196 | /********************************************************/ |
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197 | void SetGPSTime(DateTime_t * pTimeStruct) |
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198 | { |
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199 | u32 Days, Seconds, Week; |
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200 | u16 YearPart; |
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201 | u32 * MonthDayTab = 0; |
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202 | u8 i; |
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203 | |||
204 | |||
205 | // if GPS data show valid time data |
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206 | if((UbxSol.Status != INVALID) && (UbxSol.Flags & FLAG_WKNSET) && (UbxSol.Flags & FLAG_TOWSET) ) |
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207 | { |
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208 | Seconds = UbxSol.itow / 1000L; |
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209 | Week = (u32)UbxSol.week; |
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210 | // correct leap seconds since 1980 |
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211 | if(Seconds < LEAP_SECONDS_FROM_1980) |
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212 | { |
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213 | Week--; |
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214 | Seconds = SECONDS_PER_WEEK - LEAP_SECONDS_FROM_1980 + Seconds; |
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215 | } |
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216 | else Seconds -= LEAP_SECONDS_FROM_1980; |
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217 | |||
515 | killagreg | 218 | Days = DAYS_FROM_JAN01YEAR0001_TO_JAN6_1980; |
41 | ingob | 219 | Days += (Week * DAYS_PER_WEEK); |
220 | Days += Seconds / SECONDS_PER_DAY; // seperate days from GPS seconds of week |
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221 | |||
222 | pTimeStruct->Year = 1; |
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223 | YearPart = (u16)(Days / DAYS_PER_400YEARS); |
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224 | pTimeStruct->Year += YearPart * 400; |
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225 | Days = Days % DAYS_PER_400YEARS; |
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226 | YearPart = (u16)(Days / DAYS_PER_100YEARS); |
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227 | pTimeStruct->Year += YearPart * 100; |
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228 | Days = Days % DAYS_PER_100YEARS; |
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229 | YearPart = (u16)(Days / DAYS_PER_4YEARS); |
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230 | pTimeStruct->Year += YearPart * 4; |
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231 | Days = Days % DAYS_PER_4YEARS; |
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232 | if(Days < (3* DAYS_PER_YEAR)) YearPart = (u16)(Days / DAYS_PER_YEAR); |
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233 | else YearPart = 3; |
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234 | pTimeStruct->Year += YearPart; |
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235 | // calculate remaining days of year |
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236 | Days -= (u32)(YearPart * DAYS_PER_YEAR); |
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237 | Days += 1; |
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238 | // check if current year is a leap year |
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239 | if(IsLeapYear(pTimeStruct->Year)) MonthDayTab = (u32*)Leap; |
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240 | else MonthDayTab = (u32*)Normal; |
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515 | killagreg | 241 | // seperate month and day from days of year |
41 | ingob | 242 | for ( i = 0; i < 12; i++ ) |
243 | { |
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244 | if ( (MonthDayTab[i]< Days) && (Days <= MonthDayTab[i+1]) ) |
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245 | { |
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246 | pTimeStruct->Month = i+1; |
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247 | pTimeStruct->Day = Days - MonthDayTab[i]; |
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248 | i = 12; |
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249 | } |
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250 | } |
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251 | Seconds = Seconds % SECONDS_PER_DAY; // remaining seconds of current day |
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252 | pTimeStruct->Hour = (u8)(Seconds / SECONDS_PER_HOUR); |
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253 | Seconds = Seconds % SECONDS_PER_HOUR; // remaining seconds of current hour |
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254 | pTimeStruct->Min = (u8)(Seconds / SECONDS_PER_MINUTE); |
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255 | Seconds = Seconds % SECONDS_PER_MINUTE; // remaining seconds of current minute |
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256 | pTimeStruct->Sec = (u8)(Seconds); |
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257 | pTimeStruct->mSec = (u16)(UbxSol.itow % 1000L); |
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258 | pTimeStruct->Valid = 1; |
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259 | } |
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260 | else |
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261 | { |
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262 | pTimeStruct->Valid = 0; |
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263 | } |
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264 | } |
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265 | |||
266 | |||
267 | |||
268 | /********************************************************/ |
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269 | /* Initialize UBX Parser */ |
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270 | /********************************************************/ |
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271 | void UBX_Init(void) |
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272 | { |
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273 | // mark msg buffers invalid |
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274 | UbxSol.Status = INVALID; |
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275 | UbxPosLlh.Status = INVALID; |
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276 | UbxVelNed.Status = INVALID; |
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247 | killagreg | 277 | UbxMsg.Status = INVALID; |
41 | ingob | 278 | GPSData.Status = INVALID; |
146 | killagreg | 279 | |
280 | UBX_Timeout = SetDelay(2 * UBX_Timeout); |
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41 | ingob | 281 | } |
282 | |||
283 | /********************************************************/ |
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284 | /* Upate GPS data stcructure */ |
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285 | /********************************************************/ |
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263 | killagreg | 286 | void Update_GPSData(void) |
41 | ingob | 287 | { |
263 | killagreg | 288 | static u32 last_itow = 0; |
569 | holgerb | 289 | static u32 milliseconds = 0; |
41 | ingob | 290 | |
291 | // if a new set of ubx messages was collected |
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263 | killagreg | 292 | if((UbxSol.Status == NEWDATA) && (UbxPosLlh.Status == NEWDATA) && (UbxVelNed.Status == NEWDATA)) |
293 | { // and the itow is equal (same time base) |
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515 | killagreg | 294 | UART_VersionInfo.Flags |= NC_VERSION_FLAG_GPS_PRESENT; |
263 | killagreg | 295 | if((UbxSol.itow == UbxPosLlh.itow) && (UbxPosLlh.itow == UbxVelNed.itow)) |
41 | ingob | 296 | { |
146 | killagreg | 297 | UBX_Timeout = SetDelay(UBX_TIMEOUT); |
700 | holgerb | 298 | DebugOut.Analog[9]++; |
263 | killagreg | 299 | // update GPS data only if the status is INVALID or PROCESSED |
515 | killagreg | 300 | if(GPSData.Status != NEWDATA) |
41 | ingob | 301 | { // wait for new data at all neccesary ubx messages |
659 | holgerb | 302 | CountNewGpsDataIn5Sec++; |
41 | ingob | 303 | GPSData.Status = INVALID; |
244 | killagreg | 304 | // update message cycle time |
264 | killagreg | 305 | GPSData.MsgCycleTime = (u16)(UbxSol.itow-last_itow); |
569 | holgerb | 306 | milliseconds += GPSData.MsgCycleTime; |
264 | killagreg | 307 | last_itow = UbxSol.itow; // update last itow |
41 | ingob | 308 | // NAV SOL |
322 | holgerb | 309 | GPSData.Flags = (GPSData.Flags & 0xf0) | (UbxSol.Flags & 0x0f); // we take only the lower bits |
41 | ingob | 310 | GPSData.NumOfSats = UbxSol.numSV; |
311 | GPSData.SatFix = UbxSol.GPSfix; |
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645 | holgerb | 312 | //if(Parameter.User3 > 100) { GPSData.NumOfSats = 0; GPSData.SatFix = 0;} |
313 | //if(Parameter.User3 > 100) { GPSData.SatFix = 0;} |
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492 | killagreg | 314 | GPSData.Position_Accuracy = UbxSol.PAcc; // in steps of 1cm |
315 | GPSData.Speed_Accuracy = UbxSol.SAcc; // in steps of 1cm/s |
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41 | ingob | 316 | SetGPSTime(&SystemTime); // update system time |
317 | // NAV VELNED |
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492 | killagreg | 318 | GPSData.Speed_East = UbxVelNed.VEL_E; // in steps of 1cm/s |
319 | GPSData.Speed_North = UbxVelNed.VEL_N; // in steps of 1cm/s |
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320 | GPSData.Speed_Top = -UbxVelNed.VEL_D; // in steps of 1cm/s |
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321 | GPSData.Speed_Ground = UbxVelNed.GSpeed; // in steps of 1cm/s |
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322 | GPSData.Heading = UbxVelNed.Heading; //in steps of 1E-5 deg |
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569 | holgerb | 323 | // NAV POSLLH |
324 | GPSData.Position.Status = INVALID; |
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325 | if(!(SimulationFlags & SIMULATION_ACTIVE)) |
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326 | { |
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327 | GPSData.Position.Longitude = UbxPosLlh.LON; // in steps of 1E-7 deg |
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328 | GPSData.Position.Latitude = UbxPosLlh.LAT; // in steps of 1E-7 deg |
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329 | GPSData.Position.Altitude = UbxPosLlh.HMSL; // in steps of 1 mm |
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330 | } |
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331 | else // simulation active |
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332 | { |
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574 | holgerb | 333 | if(GPSData.SatFix != SATFIX_3D || GPSData.NumOfSats < 6) // simulate satfix |
569 | holgerb | 334 | { |
645 | holgerb | 335 | GPSData.SatFix = SATFIX_3D; // Simulation |
336 | GPSData.Flags |= FLAG_GPSFIXOK; // Simulation |
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337 | GPSData.NumOfSats = 8; // Simulation |
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569 | holgerb | 338 | if(!SystemTime.Valid) |
339 | { |
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340 | UbxSol.Status = 1; |
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341 | UbxSol.Flags |= FLAG_WKNSET; |
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342 | UbxSol.Flags |= FLAG_TOWSET; |
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343 | UbxSol.week = 1043; // starts in year 2000 |
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344 | UbxSol.itow = milliseconds; |
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345 | SetGPSTime(&SystemTime); // update system time |
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346 | SystemTime.Valid = 1; // use the time that is given by the GPS-Module |
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347 | } |
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348 | } |
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349 | } |
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350 | GPSData.Position.Status = NEWDATA; |
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515 | killagreg | 351 | |
41 | ingob | 352 | GPSData.Status = NEWDATA; // new data available |
353 | } // EOF if(GPSData.Status != NEWDATA) |
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263 | killagreg | 354 | // set state to collect new data |
355 | UbxSol.Status = PROCESSED; // ready for new data |
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356 | UbxPosLlh.Status = PROCESSED; // ready for new data |
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357 | UbxVelNed.Status = PROCESSED; // ready for new data |
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358 | } // EOF all itow are equal |
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359 | } // EOF all ubx messages received |
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503 | holgerb | 360 | |
361 | |||
362 | //++++++++++++++++++++++++++++++++ |
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363 | // Please do not delete |
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515 | killagreg | 364 | // This helps me for testing |
503 | holgerb | 365 | //++++++++++++++++++++++++++++++++ |
366 | //GPSData.Position.Longitude = 1517409123L; // Hamilton, Australia |
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367 | //GPSData.Position.Latitude = -329294773L; // Hamilton, Australia |
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368 | //++++++++ |
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369 | //GPSData.Position.Longitude =-1556010020L; // Alaska |
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370 | //GPSData.Position.Latitude = 629581270L; // Alaska |
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371 | //++++++++ |
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372 | //GPSData.Position.Longitude =-584343419L; // Buenos aires |
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373 | //GPSData.Position.Latitude = -345464421L; // Buenos aires |
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374 | //++++++++ |
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375 | //GPSData.Position.Longitude =1683362691L; // Neuseeland |
||
376 | //GPSData.Position.Latitude = -465945926L; // Neuseeland |
||
504 | holgerb | 377 | //++++++++ |
507 | holgerb | 378 | //GPSData.Position.Longitude = 194140605L; // Afrika |
379 | //GPSData.Position.Latitude = -345384656L; // Afrika |
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380 | //++++++++ |
||
504 | holgerb | 381 | //GPSData.Position.Longitude =-740443840L; // Liberty Staue davor |
515 | killagreg | 382 | //GPSData.Position.Latitude = 406888880L; // Liberty Staue |
504 | holgerb | 383 | |
384 | //GPSData.Position.Longitude =-740451660L; // Liberty Staue daneben |
||
515 | killagreg | 385 | //GPSData.Position.Latitude = 406891880L; // Liberty Staue |
504 | holgerb | 386 | |
387 | //GPSData.Position.Longitude =-740446540L; // Liberty Staue direkt |
||
388 | //GPSData.Position.Latitude = 406891590L; // Liberty Staue 1 |
||
389 | |||
514 | holgerb | 390 | //GPSData.Position.Longitude =-1142878694L; // Flori |
515 | killagreg | 391 | //GPSData.Position.Latitude = 483712102L; // |
514 | holgerb | 392 | |
393 | //GPSData.Position.Longitude =1251674613L; // Bubble |
||
515 | killagreg | 394 | //GPSData.Position.Latitude = 466058365L; // |
395 | |||
41 | ingob | 396 | } |
397 | |||
700 | holgerb | 398 | u8 UbxVersionParser(void) |
399 | { |
||
400 | // HW:00000040: Antaris |
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401 | // HW:00040001: Antaris-4 |
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402 | // HW:80040001: Antaris-4 |
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403 | // HW:00040005: u-blox 5 |
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404 | // HW:00040006: u-blox 6 |
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405 | // HW:00040007: u-blox 6 |
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406 | // HW:00070000: u-blox 7 |
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407 | // HW:00080000: u-blox M8 |
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408 | // MKGPS V1 -> 1500 -> LEA-4H-0-000 -> ubxsw == 5.00 HW:00040001 |
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409 | // MKGPS V2 -> 2602 -> LEA-6S-0-000 -> ubxsw == 6.02 HW:00040007 |
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410 | // MKGPS V2 -> 2703 -> LEA-6S-0-001 -> ubxsw == 7.03 HW:00040007 |
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411 | // MKGPS V3 -> 3201 -> NEO-M8Q-0-00 -> ubxsw == 2.00 HW:00080000 (Flash-oder ROM Variante) |
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41 | ingob | 412 | |
700 | holgerb | 413 | u8 retval = 0xFF; |
414 | if(UbxMsg.Data[33] == '4' && UbxMsg.Data[37] == '1') // LEA-4 |
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415 | { |
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416 | GPS_Version = 1000 + (UbxMsg.Data[0] - '0') * 100 + (UbxMsg.Data[2] - '0') * 10 + (UbxMsg.Data[3] - '0'); |
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417 | retval = 10; // MKGPS V1 |
||
418 | } |
||
419 | else |
||
420 | if(UbxMsg.Data[33] == '4' && UbxMsg.Data[37] == '7') // LEA-6 |
||
421 | { |
||
422 | GPS_Version = 2000 + (UbxMsg.Data[0] - '0') * 100 + (UbxMsg.Data[2] - '0') * 10 + (UbxMsg.Data[3] - '0'); |
||
423 | retval = 20; // MKGPS V2 |
||
424 | } |
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425 | else |
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426 | if(UbxMsg.Data[33] == '8' && UbxMsg.Data[37] == '0') // NEO-8 |
||
427 | { |
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428 | GPS_Version = 3000 + (UbxMsg.Data[0] - '0') * 100 + (UbxMsg.Data[2] - '0') * 10 + (UbxMsg.Data[3] - '0'); |
||
429 | retval = 30; // MKGPS V3 |
||
430 | } |
||
431 | return(retval); |
||
432 | } |
||
433 | |||
41 | ingob | 434 | /********************************************************/ |
435 | /* UBX Parser */ |
||
436 | /********************************************************/ |
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245 | killagreg | 437 | void UBX_RxParser(u8 c) |
41 | ingob | 438 | { |
439 | static ubxState_t ubxState = UBXSTATE_IDLE; |
||
263 | killagreg | 440 | static ubxmsghdr_t RxHdr; |
441 | static u8 RxData[UBX_MSG_DATA_SIZE]; |
||
442 | static u16 RxBytes = 0; |
||
41 | ingob | 443 | static u8 cka, ckb; |
444 | |||
445 | |||
446 | //state machine |
||
447 | switch (ubxState) // ubx message parser |
||
448 | { |
||
449 | case UBXSTATE_IDLE: // check 1st sync byte |
||
450 | if (c == UBX_SYNC1_CHAR) ubxState = UBXSTATE_SYNC1; |
||
451 | else ubxState = UBXSTATE_IDLE; // out of synchronization |
||
452 | break; |
||
453 | |||
454 | case UBXSTATE_SYNC1: // check 2nd sync byte |
||
455 | if (c == UBX_SYNC2_CHAR) ubxState = UBXSTATE_SYNC2; |
||
456 | else ubxState = UBXSTATE_IDLE; // out of synchronization |
||
457 | break; |
||
458 | |||
459 | case UBXSTATE_SYNC2: // check msg class to be NAV |
||
263 | killagreg | 460 | RxHdr.Class = c; |
245 | killagreg | 461 | ubxState = UBXSTATE_CLASS; |
41 | ingob | 462 | break; |
463 | |||
464 | case UBXSTATE_CLASS: // check message identifier |
||
263 | killagreg | 465 | RxHdr.Id = c; |
247 | killagreg | 466 | ubxState = UBXSTATE_LEN1; |
263 | killagreg | 467 | cka = RxHdr.Class + RxHdr.Id; |
468 | ckb = RxHdr.Class + cka; |
||
247 | killagreg | 469 | break; |
470 | |||
471 | case UBXSTATE_LEN1: // 1st message length byte |
||
263 | killagreg | 472 | RxHdr.Length = (u16)c; // lowbyte first |
247 | killagreg | 473 | cka += c; |
474 | ckb += cka; |
||
475 | ubxState = UBXSTATE_LEN2; |
||
476 | break; |
||
477 | |||
478 | case UBXSTATE_LEN2: // 2nd message length byte |
||
263 | killagreg | 479 | RxHdr.Length += ((u16)c)<<8; // high byte last |
480 | if (RxHdr.Length >= UBX_MSG_DATA_SIZE) |
||
41 | ingob | 481 | { |
515 | killagreg | 482 | ubxState = UBXSTATE_IDLE; |
41 | ingob | 483 | } |
263 | killagreg | 484 | else |
41 | ingob | 485 | { |
263 | killagreg | 486 | cka += c; |
487 | ckb += cka; |
||
488 | RxBytes = 0; // reset data byte counter |
||
489 | ubxState = UBXSTATE_DATA; |
||
41 | ingob | 490 | } |
491 | break; |
||
492 | |||
493 | case UBXSTATE_DATA: // collecting data |
||
263 | killagreg | 494 | if (RxBytes < UBX_MSG_DATA_SIZE) |
41 | ingob | 495 | { |
263 | killagreg | 496 | RxData[RxBytes++] = c; // copy curent data byte if any space is left |
41 | ingob | 497 | cka += c; |
498 | ckb += cka; |
||
263 | killagreg | 499 | if (RxBytes >= RxHdr.Length) ubxState = UBXSTATE_CKA; // switch to next state if all data have been received |
41 | ingob | 500 | } |
501 | else // rx buffer overrun |
||
502 | { |
||
503 | ubxState = UBXSTATE_IDLE; |
||
504 | } |
||
505 | break; |
||
506 | |||
507 | case UBXSTATE_CKA: |
||
508 | if (c == cka) ubxState = UBXSTATE_CKB; |
||
509 | else |
||
510 | { |
||
511 | ubxState = UBXSTATE_IDLE; |
||
512 | } |
||
513 | break; |
||
514 | |||
515 | case UBXSTATE_CKB: |
||
516 | if (c == ckb) |
||
263 | killagreg | 517 | { // checksum is ok |
518 | |||
519 | switch(RxHdr.Class) |
||
520 | { |
||
521 | case UBX_CLASS_NAV: |
||
522 | switch(RxHdr.Id) |
||
523 | { |
||
524 | case UBX_ID_POSLLH: // geodetic position |
||
525 | memcpy((u8*)&UbxPosLlh, RxData, RxHdr.Length); |
||
526 | UbxPosLlh.Status = NEWDATA; |
||
527 | break; |
||
528 | |||
515 | killagreg | 529 | case UBX_ID_VELNED: // velocity vector in tangent plane |
263 | killagreg | 530 | memcpy((u8*)&UbxVelNed, RxData, RxHdr.Length); |
531 | UbxVelNed.Status = NEWDATA; |
||
532 | break; |
||
533 | |||
534 | case UBX_ID_SOL: // navigation solution |
||
535 | memcpy((u8*)&UbxSol, RxData, RxHdr.Length); |
||
536 | UbxSol.Status = NEWDATA; |
||
537 | break; |
||
538 | |||
539 | default: |
||
540 | break; |
||
541 | } // EOF switch(Id) |
||
542 | Update_GPSData(); |
||
543 | break; |
||
700 | holgerb | 544 | case UBX_CLASS_MON: // version |
545 | switch(RxHdr.Id) |
||
546 | { |
||
547 | case UBX_ID_MON_VER: |
||
548 | if(UbxMsg.Hdr.Length <= UBX_MSG_DATA_SIZE) memcpy(UbxMsg.Data, RxData, RxHdr.Length); |
||
549 | UbxVersionParser(); |
||
550 | break; |
||
515 | killagreg | 551 | |
700 | holgerb | 552 | default: |
553 | break; |
||
554 | } |
||
263 | killagreg | 555 | default: |
556 | break; |
||
557 | } // EOF switch(class) |
||
558 | |||
515 | killagreg | 559 | // check generic msg filter |
263 | killagreg | 560 | if(UbxMsg.Status != NEWDATA) |
561 | { // msg buffer is free |
||
562 | if(((UbxMsg.Hdr.Class&UbxMsg.ClassMask) == (RxHdr.Class&UbxMsg.ClassMask)) && ((UbxMsg.Hdr.Id&UbxMsg.IdMask) == (RxHdr.Id&UbxMsg.IdMask))) |
||
563 | { // msg matches to the filter criteria |
||
564 | UbxMsg.Status = INVALID; |
||
565 | UbxMsg.Hdr.Class = RxHdr.Class; |
||
566 | UbxMsg.Hdr.Id = RxHdr.Id; |
||
567 | UbxMsg.Hdr.Length = RxHdr.Length; |
||
568 | if(UbxMsg.Hdr.Length <= UBX_MSG_DATA_SIZE) |
||
569 | { // copy data block |
||
570 | memcpy(UbxMsg.Data, RxData, RxHdr.Length); |
||
571 | UbxMsg.Status = NEWDATA; |
||
515 | killagreg | 572 | } |
263 | killagreg | 573 | } // EOF filter matches |
574 | } // EOF != INVALID |
||
575 | }// EOF crc ok |
||
645 | holgerb | 576 | else DebugOut.Analog[13]++; // CRC Error -> since 2.10e (6.2015) |
41 | ingob | 577 | ubxState = UBXSTATE_IDLE; // ready to parse new data |
578 | break; |
||
579 | |||
580 | default: // unknown ubx state |
||
581 | ubxState = UBXSTATE_IDLE; |
||
582 | break; |
||
583 | |||
584 | } |
||
585 | } |
||
245 | killagreg | 586 | |
247 | killagreg | 587 | u8 UBX_CreateMsg(Buffer_t* pBuff, u8* pData, u16 Len) |
245 | killagreg | 588 | { |
589 | u16 i; |
||
590 | u8 cka = 0, ckb = 0; |
||
591 | // check if buffer is available |
||
592 | if(pBuff->Locked == TRUE) return(0); |
||
593 | // check if buffer size is sufficient |
||
594 | if(pBuff->Size < 8 + Len) return(0); |
||
595 | // lock the buffer |
||
596 | pBuff->Locked = TRUE; |
||
515 | killagreg | 597 | // start at begin |
245 | killagreg | 598 | pBuff->Position = 0; |
599 | pBuff->pData[pBuff->Position++] = UBX_SYNC1_CHAR; |
||
600 | pBuff->pData[pBuff->Position++] = UBX_SYNC2_CHAR; |
||
247 | killagreg | 601 | for(i=0;i<Len;i++) |
602 | { |
||
603 | pBuff->pData[pBuff->Position++] = pData[i]; |
||
604 | } |
||
245 | killagreg | 605 | // calculate checksum |
606 | for(i=2;i<pBuff->Position;i++) |
||
607 | { |
||
515 | killagreg | 608 | cka += pBuff->pData[i]; |
245 | killagreg | 609 | ckb += cka; |
610 | } |
||
611 | pBuff->pData[pBuff->Position++] = cka; |
||
612 | pBuff->pData[pBuff->Position++] = ckb; |
||
613 | pBuff->DataBytes = pBuff->Position; |
||
614 | pBuff->Position = 0; // reset buffer position for transmision |
||
615 | return(1); |
||
616 | } |
||
263 | killagreg | 617 | /* |
618 | switch(ubxclass) |
||
619 | { |
||
620 | case UBX_CLASS_NAV: |
||
621 | switch(ubxid) |
||
622 | { |
||
623 | case UBX_ID_POSLLH: // geodetic position |
||
624 | ubxSp = (u8 *)&UbxPosLlh; // data start pointer |
||
625 | ubxEp = (u8 *)(&UbxPosLlh + 1); // data end pointer |
||
626 | ubxStP = (u8 *)&UbxPosLlh.Status; // status pointer |
||
627 | break; |
||
515 | killagreg | 628 | |
263 | killagreg | 629 | case UBX_ID_SOL: // navigation solution |
630 | ubxSp = (u8 *)&UbxSol; // data start pointer |
||
631 | ubxEp = (u8 *)(&UbxSol + 1); // data end pointer |
||
632 | ubxStP = (u8 *)&UbxSol.Status; // status pointer |
||
633 | break; |
||
515 | killagreg | 634 | |
263 | killagreg | 635 | case UBX_ID_VELNED: // velocity vector in tangent plane |
636 | ubxSp = (u8 *)&UbxVelNed; // data start pointer |
||
637 | ubxEp = (u8 *)(&UbxVelNed + 1); // data end pointer |
||
638 | ubxStP = (u8 *)&UbxVelNed.Status; // status pointer |
||
639 | break; |
||
515 | killagreg | 640 | |
263 | killagreg | 641 | default: // unsupported identifier |
642 | ubxState = UBXSTATE_IDLE; |
||
643 | return; |
||
644 | } |
||
645 | break; |
||
646 | |||
647 | default: // other classes |
||
648 | if(UbxMsg.Status == NEWDATA) ubxState = UBXSTATE_IDLE; |
||
649 | else if(((UbxMsg.Hdr.Class&UbxMsg.ClassMask) == (ubxclass&UbxMsg.ClassMask)) && ((UbxMsg.Hdr.Id&UbxMsg.IdMask) == (ubxid&UbxMsg.IdMask))) |
||
650 | { // buffer is free and message matches to filter criteria |
||
651 | UbxMsg.Status = INVALID; |
||
652 | UbxMsg.Hdr.Class = ubxclass; |
||
653 | UbxMsg.Hdr.Id = ubxid; |
||
654 | UbxMsg.Hdr.Length = msglen; |
||
655 | ubxSp = (u8 *)&(UbxMsg.Data); // data start pointer |
||
656 | ubxEp = (u8 *)(&UbxMsg + 1); // data end pointer |
||
515 | killagreg | 657 | ubxStP = (u8 *)&UbxMsg.Status; // status pointer |
263 | killagreg | 658 | } |
515 | killagreg | 659 | else ubxState = UBXSTATE_IDLE; |
263 | killagreg | 660 | break; |
661 | } |
||
662 | */ |
||
663 |