Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1612 | dongfang | 1 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
2 | // + Copyright (c) 04.2007 Holger Buss |
||
3 | // + Nur für den privaten Gebrauch |
||
4 | // + www.MikroKopter.com |
||
5 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
6 | // + Es gilt für das gesamte Projekt (Hardware, Software, Binärfiles, Sourcecode und Dokumentation), |
||
7 | // + dass eine Nutzung (auch auszugsweise) nur für den privaten (nicht-kommerziellen) Gebrauch zulässig ist. |
||
8 | // + Sollten direkte oder indirekte kommerzielle Absichten verfolgt werden, ist mit uns (info@mikrokopter.de) Kontakt |
||
9 | // + bzgl. der Nutzungsbedingungen aufzunehmen. |
||
10 | // + Eine kommerzielle Nutzung ist z.B.Verkauf von MikroKoptern, Bestückung und Verkauf von Platinen oder Bausätzen, |
||
11 | // + Verkauf von Luftbildaufnahmen, usw. |
||
12 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
13 | // + Werden Teile des Quellcodes (mit oder ohne Modifikation) weiterverwendet oder veröffentlicht, |
||
14 | // + unterliegen sie auch diesen Nutzungsbedingungen und diese Nutzungsbedingungen incl. Copyright müssen dann beiliegen |
||
15 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
16 | // + Sollte die Software (auch auszugesweise) oder sonstige Informationen des MikroKopter-Projekts |
||
17 | // + auf anderen Webseiten oder sonstigen Medien veröffentlicht werden, muss unsere Webseite "http://www.mikrokopter.de" |
||
18 | // + eindeutig als Ursprung verlinkt werden |
||
19 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
20 | // + Keine Gewähr auf Fehlerfreiheit, Vollständigkeit oder Funktion |
||
21 | // + Benutzung auf eigene Gefahr |
||
22 | // + Wir übernehmen keinerlei Haftung für direkte oder indirekte Personen- oder Sachschäden |
||
23 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
24 | // + Die Portierung der Software (oder Teile davon) auf andere Systeme (ausser der Hardware von www.mikrokopter.de) ist nur |
||
25 | // + mit unserer Zustimmung zulässig |
||
26 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
27 | // + Die Funktion printf_P() unterliegt ihrer eigenen Lizenz und ist hiervon nicht betroffen |
||
28 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
29 | // + Redistributions of source code (with or without modifications) must retain the above copyright notice, |
||
30 | // + this list of conditions and the following disclaimer. |
||
31 | // + * Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived |
||
32 | // + from this software without specific prior written permission. |
||
33 | // + * The use of this project (hardware, software, binary files, sources and documentation) is only permittet |
||
34 | // + for non-commercial use (directly or indirectly) |
||
1868 | - | 35 | // + Commercial use (for example: selling of MikroKopters, selling of PCBs, assembly, ...) is only permitted |
1612 | dongfang | 36 | // + with our written permission |
37 | // + * If sources or documentations are redistributet on other webpages, out webpage (http://www.MikroKopter.de) must be |
||
38 | // + clearly linked as origin |
||
39 | // + * porting to systems other than hardware from www.mikrokopter.de is not allowed |
||
40 | // + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
||
41 | // + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
||
42 | // + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
||
43 | // + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
||
44 | // + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
||
45 | // + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
||
46 | // + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
||
47 | // + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN// + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
||
48 | // + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
||
49 | // + POSSIBILITY OF SUCH DAMAGE. |
||
50 | // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
||
51 | #include <inttypes.h> |
||
52 | #include <stdlib.h> |
||
1775 | - | 53 | //#include "mymath.h" |
1612 | dongfang | 54 | #include "timer0.h" |
55 | #include "uart0.h" |
||
56 | #include "rc.h" |
||
57 | #include "eeprom.h" |
||
58 | |||
1805 | - | 59 | typedef enum { |
60 | GPS_FLIGHT_MODE_UNDEF, |
||
61 | GPS_FLIGHT_MODE_FREE, |
||
62 | GPS_FLIGHT_MODE_AID, |
||
63 | GPS_FLIGHT_MODE_HOME, |
||
64 | } FlightMode_t; |
||
1612 | dongfang | 65 | |
66 | #define GPS_POSINTEGRAL_LIMIT 32000 |
||
67 | #define GPS_STICK_LIMIT 45 // limit of gps stick control to avoid critical flight attitudes |
||
68 | #define GPS_P_LIMIT 25 |
||
69 | |||
1805 | - | 70 | typedef struct { |
71 | int32_t Longitude; |
||
72 | int32_t Latitude; |
||
73 | int32_t Altitude; |
||
74 | Status_t Status; |
||
1612 | dongfang | 75 | } GPS_Pos_t; |
76 | |||
77 | // GPS coordinates for hold position |
||
1805 | - | 78 | GPS_Pos_t HoldPosition = { 0, 0, 0, INVALID }; |
1612 | dongfang | 79 | // GPS coordinates for home position |
1805 | - | 80 | GPS_Pos_t HomePosition = { 0, 0, 0, INVALID }; |
1612 | dongfang | 81 | // the current flight mode |
82 | FlightMode_t FlightMode = GPS_FLIGHT_MODE_UNDEF; |
||
83 | |||
84 | // --------------------------------------------------------------------------------- |
||
1775 | - | 85 | void GPS_UpdateParameter(void) { |
1805 | - | 86 | static FlightMode_t FlightModeOld = GPS_FLIGHT_MODE_UNDEF; |
1612 | dongfang | 87 | |
1805 | - | 88 | if ((RC_Quality < 100) || (MKFlags & MKFLAG_EMERGENCY_LANDING)) { |
89 | FlightMode = GPS_FLIGHT_MODE_FREE; |
||
90 | } else { |
||
91 | if (dynamicParams.NaviGpsModeControl < 50) |
||
92 | FlightMode = GPS_FLIGHT_MODE_AID; |
||
93 | else if (dynamicParams.NaviGpsModeControl < 180) |
||
94 | FlightMode = GPS_FLIGHT_MODE_FREE; |
||
95 | else |
||
96 | FlightMode = GPS_FLIGHT_MODE_HOME; |
||
97 | } |
||
98 | |||
99 | if (FlightMode != FlightModeOld) { |
||
100 | BeepTime = 100; |
||
101 | } |
||
102 | FlightModeOld = FlightMode; |
||
1612 | dongfang | 103 | } |
104 | |||
105 | // --------------------------------------------------------------------------------- |
||
106 | // This function defines a good GPS signal condition |
||
1775 | - | 107 | uint8_t GPS_IsSignalOK(void) { |
1805 | - | 108 | static uint8_t GPSFix = 0; |
109 | if ((GPSInfo.status != INVALID) && (GPSInfo.satfix == SATFIX_3D) |
||
110 | && (GPSInfo.flags & FLAG_GPSFIXOK) && ((GPSInfo.satnum |
||
111 | >= staticParams.NaviGpsMinSat) || GPSFix)) { |
||
112 | GPSFix = 1; |
||
113 | return 1; |
||
114 | } else |
||
115 | return (0); |
||
1775 | - | 116 | } |
1612 | dongfang | 117 | |
118 | // --------------------------------------------------------------------------------- |
||
119 | // rescale xy-vector length to limit |
||
1775 | - | 120 | uint8_t GPS_LimitXY(int32_t *x, int32_t *y, int32_t limit) { |
1805 | - | 121 | uint8_t retval = 0; |
122 | int32_t len; |
||
123 | len = (int32_t) c_sqrt(*x * *x + *y * *y); |
||
124 | if (len > limit) { |
||
125 | // normalize control vector components to the limit |
||
126 | *x = (*x * limit) / len; |
||
127 | *y = (*y * limit) / len; |
||
128 | retval = 1; |
||
129 | } |
||
130 | return (retval); |
||
1612 | dongfang | 131 | } |
132 | |||
133 | // checks nick and roll sticks for manual control |
||
1775 | - | 134 | uint8_t GPS_IsManualControlled(void) { |
1805 | - | 135 | if ((abs(PPM_in[staticParams.ChannelAssignment[CH_NICK]]) |
136 | < staticParams.NaviStickThreshold) |
||
137 | && (abs(PPM_in[staticParams.ChannelAssignment[CH_ROLL]]) |
||
138 | < staticParams.NaviStickThreshold)) |
||
139 | return 0; |
||
140 | else |
||
141 | return 1; |
||
1612 | dongfang | 142 | } |
143 | |||
144 | // set given position to current gps position |
||
1775 | - | 145 | uint8_t GPS_SetCurrPosition(GPS_Pos_t * pGPSPos) { |
1805 | - | 146 | uint8_t retval = 0; |
147 | if (pGPSPos == NULL) |
||
148 | return (retval); // bad pointer |
||
1612 | dongfang | 149 | |
1805 | - | 150 | if (GPS_IsSignalOK()) { // is GPS signal condition is fine |
151 | pGPSPos->Longitude = GPSInfo.longitude; |
||
152 | pGPSPos->Latitude = GPSInfo.latitude; |
||
153 | pGPSPos->Altitude = GPSInfo.altitude; |
||
154 | pGPSPos->Status = NEWDATA; |
||
155 | retval = 1; |
||
156 | } else { // bad GPS signal condition |
||
157 | pGPSPos->Status = INVALID; |
||
158 | retval = 0; |
||
159 | } |
||
160 | return (retval); |
||
1612 | dongfang | 161 | } |
162 | |||
163 | // clear position |
||
1775 | - | 164 | uint8_t GPS_ClearPosition(GPS_Pos_t * pGPSPos) { |
1805 | - | 165 | uint8_t retval = 0; |
166 | if (pGPSPos == NULL) |
||
167 | return retval; // bad pointer |
||
168 | else { |
||
169 | pGPSPos->Longitude = 0; |
||
170 | pGPSPos->Latitude = 0; |
||
171 | pGPSPos->Altitude = 0; |
||
172 | pGPSPos->Status = INVALID; |
||
173 | retval = 1; |
||
174 | } |
||
175 | return (retval); |
||
1612 | dongfang | 176 | } |
177 | |||
178 | // disable GPS control sticks |
||
1775 | - | 179 | void GPS_Neutral(void) { |
1805 | - | 180 | GPSStickNick = 0; |
181 | GPSStickRoll = 0; |
||
1612 | dongfang | 182 | } |
183 | |||
184 | // calculates the GPS control stick values from the deviation to target position |
||
185 | // if the pointer to the target positin is NULL or is the target position invalid |
||
186 | // then the P part of the controller is deactivated. |
||
1775 | - | 187 | void GPS_PIDController(GPS_Pos_t *pTargetPos) { |
1805 | - | 188 | static int32_t PID_Nick, PID_Roll; |
189 | int32_t coscompass, sincompass; |
||
190 | int32_t GPSPosDev_North, GPSPosDev_East; // Position deviation in cm |
||
191 | int32_t P_North = 0, D_North = 0, P_East = 0, D_East = 0, I_North = 0, |
||
192 | I_East = 0; |
||
193 | int32_t PID_North = 0, PID_East = 0; |
||
194 | static int32_t cos_target_latitude = 1; |
||
195 | static int32_t GPSPosDevIntegral_North = 0, GPSPosDevIntegral_East = 0; |
||
196 | static GPS_Pos_t *pLastTargetPos = 0; |
||
1612 | dongfang | 197 | |
1805 | - | 198 | // if GPS data and Compass are ok |
199 | if (GPS_IsSignalOK() && (CompassHeading >= 0)) { |
||
200 | if (pTargetPos != NULL) // if there is a target position |
||
201 | { |
||
202 | if (pTargetPos->Status != INVALID) // and the position data are valid |
||
203 | { |
||
204 | // if the target data are updated or the target pointer has changed |
||
1821 | - | 205 | if ((pTargetPos->Status != PROCESSED) || (pTargetPos != pLastTargetPos)) { |
1805 | - | 206 | // reset error integral |
207 | GPSPosDevIntegral_North = 0; |
||
208 | GPSPosDevIntegral_East = 0; |
||
209 | // recalculate latitude projection |
||
210 | cos_target_latitude = (int32_t) c_cos_8192( |
||
211 | (int16_t) (pTargetPos->Latitude / 10000000L)); |
||
212 | // remember last target pointer |
||
213 | pLastTargetPos = pTargetPos; |
||
214 | // mark data as processed |
||
215 | pTargetPos->Status = PROCESSED; |
||
216 | } |
||
217 | // calculate position deviation from latitude and longitude differences |
||
218 | GPSPosDev_North = (GPSInfo.latitude - pTargetPos->Latitude); // to calculate real cm we would need *111/100 additionally |
||
219 | GPSPosDev_East = (GPSInfo.longitude - pTargetPos->Longitude); // to calculate real cm we would need *111/100 additionally |
||
220 | // calculate latitude projection |
||
221 | GPSPosDev_East *= cos_target_latitude; |
||
222 | GPSPosDev_East /= 8192; |
||
223 | } else {// no valid target position available |
||
224 | // reset error |
||
225 | GPSPosDev_North = 0; |
||
226 | GPSPosDev_East = 0; |
||
227 | // reset error integral |
||
228 | GPSPosDevIntegral_North = 0; |
||
229 | GPSPosDevIntegral_East = 0; |
||
230 | } |
||
231 | } else { // no target position available |
||
232 | // reset error |
||
233 | GPSPosDev_North = 0; |
||
234 | GPSPosDev_East = 0; |
||
235 | // reset error integral |
||
236 | GPSPosDevIntegral_North = 0; |
||
237 | GPSPosDevIntegral_East = 0; |
||
238 | } |
||
239 | |||
240 | //Calculate PID-components of the controller |
||
241 | |||
242 | // D-Part |
||
243 | D_North = ((int32_t) dynamicParams.NaviGpsD * GPSInfo.velnorth) / 512; |
||
244 | D_East = ((int32_t) dynamicParams.NaviGpsD * GPSInfo.veleast) / 512; |
||
245 | |||
246 | // P-Part |
||
247 | P_North = ((int32_t) dynamicParams.NaviGpsP * GPSPosDev_North) / 2048; |
||
248 | P_East = ((int32_t) dynamicParams.NaviGpsP * GPSPosDev_East) / 2048; |
||
249 | |||
250 | // I-Part |
||
251 | I_North = ((int32_t) dynamicParams.NaviGpsI * GPSPosDevIntegral_North) |
||
252 | / 8192; |
||
1821 | - | 253 | I_East = ((int32_t) dynamicParams.NaviGpsI * GPSPosDevIntegral_East) / 8192; |
1805 | - | 254 | |
255 | // combine P & I |
||
256 | PID_North = P_North + I_North; |
||
257 | PID_East = P_East + I_East; |
||
258 | if (!GPS_LimitXY(&PID_North, &PID_East, GPS_P_LIMIT)) { |
||
259 | GPSPosDevIntegral_North += GPSPosDev_North / 16; |
||
260 | GPSPosDevIntegral_East += GPSPosDev_East / 16; |
||
261 | GPS_LimitXY(&GPSPosDevIntegral_North, &GPSPosDevIntegral_East, |
||
262 | GPS_POSINTEGRAL_LIMIT); |
||
263 | } |
||
264 | |||
265 | // combine PI- and D-Part |
||
266 | PID_North += D_North; |
||
267 | PID_East += D_East; |
||
268 | |||
269 | // scale combination with gain. |
||
270 | PID_North = (PID_North * (int32_t) dynamicParams.NaviGpsGain) / 100; |
||
271 | PID_East = (PID_East * (int32_t) dynamicParams.NaviGpsGain) / 100; |
||
272 | |||
273 | // GPS to nick and roll settings |
||
274 | // A positive nick angle moves head downwards (flying forward). |
||
275 | // A positive roll angle tilts left side downwards (flying left). |
||
276 | // If compass heading is 0 the head of the copter is in north direction. |
||
277 | // A positive nick angle will fly to north and a positive roll angle will fly to west. |
||
278 | // In case of a positive north deviation/velocity the |
||
279 | // copter should fly to south (negative nick). |
||
280 | // In case of a positive east position deviation and a positive east velocity the |
||
281 | // copter should fly to west (positive roll). |
||
282 | // The influence of the GPSStickNick and GPSStickRoll variable is contrarily to the stick values |
||
283 | // in the flight.c. Therefore a positive north deviation/velocity should result in a positive |
||
284 | // GPSStickNick and a positive east deviation/velocity should result in a negative GPSStickRoll. |
||
285 | |||
286 | coscompass = (int32_t) c_cos_8192(YawGyroHeading / GYRO_DEG_FACTOR); |
||
287 | sincompass = (int32_t) c_sin_8192(YawGyroHeading / GYRO_DEG_FACTOR); |
||
288 | PID_Nick = (coscompass * PID_North + sincompass * PID_East) / 8192; |
||
289 | PID_Roll = (sincompass * PID_North - coscompass * PID_East) / 8192; |
||
290 | |||
291 | // limit resulting GPS control vector |
||
292 | GPS_LimitXY(&PID_Nick, &PID_Roll, GPS_STICK_LIMIT); |
||
293 | |||
294 | GPSStickNick = (int16_t) PID_Nick; |
||
295 | GPSStickRoll = (int16_t) PID_Roll; |
||
296 | } else { // invalid GPS data or bad compass reading |
||
297 | GPS_Neutral(); // do nothing |
||
1775 | - | 298 | // reset error integral |
299 | GPSPosDevIntegral_North = 0; |
||
300 | GPSPosDevIntegral_East = 0; |
||
1805 | - | 301 | } |
1612 | dongfang | 302 | } |
303 | |||
1775 | - | 304 | void GPS_Main(void) { |
1805 | - | 305 | static uint8_t GPS_P_Delay = 0; |
306 | static uint16_t beep_rythm = 0; |
||
1612 | dongfang | 307 | |
1805 | - | 308 | GPS_UpdateParameter(); |
1612 | dongfang | 309 | |
1805 | - | 310 | // store home position if start of flight flag is set |
311 | if (MKFlags & MKFLAG_CALIBRATE) { |
||
312 | if (GPS_SetCurrPosition(&HomePosition)) |
||
313 | BeepTime = 700; |
||
314 | } |
||
315 | |||
316 | switch (GPSInfo.status) { |
||
317 | case INVALID: // invalid gps data |
||
1775 | - | 318 | GPS_Neutral(); |
1805 | - | 319 | if (FlightMode != GPS_FLIGHT_MODE_FREE) { |
320 | BeepTime = 100; // beep if signal is neccesary |
||
321 | } |
||
322 | break; |
||
323 | case PROCESSED: // if gps data are already processed do nothing |
||
324 | // downcount timeout |
||
325 | if (GPSTimeout) |
||
326 | GPSTimeout--; |
||
327 | // if no new data arrived within timeout set current data invalid |
||
328 | // and therefore disable GPS |
||
329 | else { |
||
1775 | - | 330 | GPS_Neutral(); |
1805 | - | 331 | GPSInfo.status = INVALID; |
332 | } |
||
333 | break; |
||
334 | case NEWDATA: // new valid data from gps device |
||
335 | // if the gps data quality is good |
||
336 | beep_rythm++; |
||
337 | if (GPS_IsSignalOK()) { |
||
338 | switch (FlightMode) { // check what's to do |
||
339 | case GPS_FLIGHT_MODE_FREE: |
||
340 | // update hold position to current gps position |
||
341 | GPS_SetCurrPosition(&HoldPosition); // can get invalid if gps signal is bad |
||
342 | // disable gps control |
||
343 | GPS_Neutral(); |
||
344 | break; |
||
345 | |||
346 | case GPS_FLIGHT_MODE_AID: |
||
347 | if (HoldPosition.Status != INVALID) { |
||
348 | if (GPS_IsManualControlled()) { // MK controlled by user |
||
349 | // update hold point to current gps position |
||
350 | GPS_SetCurrPosition(&HoldPosition); |
||
351 | // disable gps control |
||
352 | GPS_Neutral(); |
||
353 | GPS_P_Delay = 0; |
||
354 | } else { // GPS control active |
||
355 | if (GPS_P_Delay < 7) { |
||
356 | // delayed activation of P-Part for 8 cycles (8*0.25s = 2s) |
||
357 | GPS_P_Delay++; |
||
358 | GPS_SetCurrPosition(&HoldPosition); // update hold point to current gps position |
||
359 | GPS_PIDController(NULL); // activates only the D-Part |
||
360 | } else |
||
361 | GPS_PIDController(&HoldPosition);// activates the P&D-Part |
||
362 | } |
||
363 | } else // invalid Hold Position |
||
364 | { // try to catch a valid hold position from gps data input |
||
365 | GPS_SetCurrPosition(&HoldPosition); |
||
366 | GPS_Neutral(); |
||
367 | } |
||
368 | break; |
||
369 | |||
370 | case GPS_FLIGHT_MODE_HOME: |
||
371 | if (HomePosition.Status != INVALID) { |
||
372 | // update hold point to current gps position |
||
373 | // to avoid a flight back if home comming is deactivated |
||
374 | GPS_SetCurrPosition(&HoldPosition); |
||
375 | if (GPS_IsManualControlled()) // MK controlled by user |
||
376 | { |
||
377 | GPS_Neutral(); |
||
378 | } else // GPS control active |
||
379 | { |
||
380 | GPS_PIDController(&HomePosition); |
||
381 | } |
||
382 | } else // bad home position |
||
383 | { |
||
384 | BeepTime = 50; // signal invalid home position |
||
385 | // try to hold at least the position as a fallback option |
||
386 | |||
387 | if (HoldPosition.Status != INVALID) { |
||
388 | if (GPS_IsManualControlled()) // MK controlled by user |
||
389 | { |
||
390 | GPS_Neutral(); |
||
391 | } else // GPS control active |
||
392 | { |
||
393 | GPS_PIDController(&HoldPosition); |
||
394 | } |
||
395 | } else { // try to catch a valid hold position |
||
396 | GPS_SetCurrPosition(&HoldPosition); |
||
397 | GPS_Neutral(); |
||
398 | } |
||
399 | } |
||
400 | break; // eof TSK_HOME |
||
401 | default: // unhandled task |
||
402 | GPS_Neutral(); |
||
403 | break; // eof default |
||
404 | } // eof switch GPS_Task |
||
405 | } // eof gps data quality is good |
||
406 | else // gps data quality is bad |
||
407 | { // disable gps control |
||
408 | GPS_Neutral(); |
||
409 | if (FlightMode != GPS_FLIGHT_MODE_FREE) { |
||
410 | // beep if signal is not sufficient |
||
411 | if (!(GPSInfo.flags & FLAG_GPSFIXOK) && !(beep_rythm % 5)) |
||
412 | BeepTime = 100; |
||
1821 | - | 413 | else if (GPSInfo.satnum < staticParams.NaviGpsMinSat && !(beep_rythm |
414 | % 5)) |
||
1805 | - | 415 | BeepTime = 10; |
416 | } |
||
417 | } |
||
418 | // set current data as processed to avoid further calculations on the same gps data |
||
419 | GPSInfo.status = PROCESSED; |
||
420 | break; |
||
421 | } // eof GPSInfo.status |
||
1612 | dongfang | 422 | } |
423 |