Mercurial > public > ostc4
annotate Discovery/Src/tCCR.c @ 652:f6212495f34f
Allow setpoint starting at 0.4 ppO2:
Some rebreathers (e.g. Sentinel) start with a ppO2 of 0.4 Bar => modified range check to allow this value (was 0.5 before)
| author | Ideenmodellierer |
|---|---|
| date | Mon, 19 Apr 2021 20:34:53 +0200 |
| parents | 66c8a4ff9fc4 |
| children | 980b4aa60a0e |
| rev | line source |
|---|---|
| 38 | 1 /////////////////////////////////////////////////////////////////////////////// |
| 2 /// -*- coding: UTF-8 -*- | |
| 3 /// | |
| 4 /// \file Discovery/Src/tCCR.c | |
| 5 /// \brief HUD data via optical port | |
| 6 /// \author Heinrichs Weikamp gmbh | |
| 7 /// \date 18-Dec-2014 | |
| 8 /// | |
| 9 /// \details | |
| 10 /// | |
| 11 /// $Id$ | |
| 12 /////////////////////////////////////////////////////////////////////////////// | |
| 13 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh | |
| 14 /// | |
| 15 /// This program is free software: you can redistribute it and/or modify | |
| 16 /// it under the terms of the GNU General Public License as published by | |
| 17 /// the Free Software Foundation, either version 3 of the License, or | |
| 18 /// (at your option) any later version. | |
| 19 /// | |
| 20 /// This program is distributed in the hope that it will be useful, | |
| 21 /// but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 22 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 23 /// GNU General Public License for more details. | |
| 24 /// | |
| 25 /// You should have received a copy of the GNU General Public License | |
| 26 /// along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 27 ////////////////////////////////////////////////////////////////////////////// | |
| 28 | |
| 29 /* Includes ------------------------------------------------------------------*/ | |
| 30 #include <string.h> | |
| 31 #include "tCCR.h" | |
| 32 #include "ostc.h" | |
| 33 #include "data_central.h" | |
| 34 #include "data_exchange.h" | |
| 35 #include "check_warning.h" | |
|
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36 #include "configuration.h" |
| 634 | 37 #include <math.h> |
| 38 | 38 |
| 39 /* Private types -------------------------------------------------------------*/ | |
| 40 typedef struct | |
| 41 { | |
| 42 uint8_t hud_firmwareVersion; | |
| 43 bit8_Type status_byte; | |
| 44 uint16_t sensor_voltage_100uV[3]; | |
| 45 uint8_t sensor_ppo2_cbar[3]; | |
| 46 uint8_t temp1; | |
| 47 uint16_t battery_voltage_mV; | |
| 48 uint16_t checksum; | |
| 49 } SIrLink; | |
| 50 | |
| 634 | 51 typedef enum |
| 52 { | |
| 53 sensorOK = 0, | |
| 54 sensorSuspect, | |
| 55 SensorOutOfBounds | |
| 56 } sensorTrustState_t; | |
| 57 | |
| 58 | |
|
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59 #define HUD_BABBLING_IDIOT (30u) /* 30 Bytes received without break */ |
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60 #define HUD_RX_FRAME_LENGTH (15u) /* Length of a HUD data frame */ |
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61 #define HUD_RX_FRAME_BREAK_MS (100u) /* Time used to detect a gap between two byte receptions => frame start */ |
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62 #define HUD_RX_START_DELAY_MS (500u) /* Delay for start of RX function to avoid start of reception while a transmission is ongoing. */ |
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63 /* Based on an assumed cycle time by the sensor of 1 second. Started at time of last RX */ |
| 38 | 64 |
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65 #define BOTTLE_SENSOR_TIMEOUT (6000u) /* signal pressure budget as not received after 10 minutes (6000 * 100ms) */ |
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66 |
| 634 | 67 #define MAX_SENSOR_COMPARE_DEVIATION (0.15f) /* max deviation between two sensors allowed before their results are rated as suspect */ |
| 68 | |
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69 /* Private variables ---------------------------------------------------------*/ |
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70 static SIrLink receiveHUD[2]; |
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71 static uint8_t boolHUDdata = 0; |
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72 static uint8_t data_old__lost_connection_to_HUD = 1; |
| 38 | 73 |
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74 static uint8_t receiveHUDraw[16]; |
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75 |
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76 static uint8_t StartListeningToUART_HUD = 0; |
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77 static uint16_t HUDTimeoutCount = 0; |
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78 |
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79 static __IO ITStatus UartReadyHUD = RESET; |
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80 static uint32_t LastReceivedTick_HUD = 0; |
| 38 | 81 |
| 82 /* Private variables with external access via get_xxx() function -------------*/ | |
| 83 | |
| 84 /* Private function prototypes -----------------------------------------------*/ | |
| 635 | 85 static uint8_t tCCR_fallbackToFixedSetpoint(void); |
| 38 | 86 |
| 87 #ifndef USART_IR_HUD | |
| 88 | |
| 89 void tCCR_init(void) | |
| 90 { | |
| 91 } | |
| 92 void tCCR_control(void) | |
| 93 { | |
| 94 } | |
| 95 void tCCR_test(void) | |
| 96 { | |
| 97 } | |
| 98 void tCCR_restart(void) | |
| 99 { | |
| 100 } | |
| 101 float get_ppO2Sensor_bar(uint8_t sensor_id) | |
| 102 { | |
| 103 } | |
| 104 float get_sensorVoltage_mV(uint8_t sensor_id) | |
| 105 { | |
| 106 } | |
| 107 float get_HUD_battery_voltage_V(void) | |
| 108 { | |
| 109 } | |
| 110 void tCCR_tick(void) | |
| 111 { | |
| 112 } | |
| 113 | |
| 114 #else | |
| 115 /* Exported functions --------------------------------------------------------*/ | |
| 116 | |
| 117 float get_ppO2Sensor_bar(uint8_t sensor_id) | |
| 118 { | |
| 119 if((sensor_id > 2) || data_old__lost_connection_to_HUD) | |
| 120 return 0; | |
| 121 | |
| 122 return (float)(receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id]) / 100.0f; | |
| 123 } | |
| 124 | |
| 125 float get_sensorVoltage_mV(uint8_t sensor_id) | |
| 126 { | |
| 127 if((sensor_id > 2) || data_old__lost_connection_to_HUD) | |
| 128 return 0; | |
| 129 | |
| 130 return (float)(receiveHUD[boolHUDdata].sensor_voltage_100uV[sensor_id]) / 10.0f; | |
| 131 } | |
| 132 | |
| 133 float get_HUD_battery_voltage_V(void) | |
| 134 { | |
| 135 if(data_old__lost_connection_to_HUD) | |
| 136 return 0; | |
| 137 | |
| 138 return (float)(receiveHUD[boolHUDdata].battery_voltage_mV) / 1000.0f; | |
| 139 } | |
| 140 | |
| 141 | |
| 563 | 142 void test_O2_sensor_values_outOfBounds(int8_t * outOfBouds1, int8_t * outOfBouds2, int8_t * outOfBouds3) |
| 38 | 143 { |
| 144 uint8_t sensorNotActiveBinary; | |
| 145 uint8_t sensorActive[3]; | |
| 634 | 146 sensorTrustState_t sensorState[3]; |
| 147 uint8_t index; | |
| 148 | |
| 38 | 149 |
| 150 // test1: user deactivation | |
| 151 sensorNotActiveBinary = stateUsed->diveSettings.ppo2sensors_deactivated; | |
| 152 | |
| 153 for(int i=0;i<3;i++) | |
| 154 sensorActive[i] = 1; | |
| 155 | |
| 156 if(sensorNotActiveBinary) | |
| 157 { | |
| 158 if(sensorNotActiveBinary & 1) | |
| 159 sensorActive[0] = 0; | |
| 160 | |
| 161 if(sensorNotActiveBinary & 2) | |
| 162 sensorActive[1] = 0; | |
| 163 | |
| 164 if(sensorNotActiveBinary & 4) | |
| 165 sensorActive[2] = 0; | |
| 166 } | |
| 167 | |
| 168 // test2: mV of remaining sensors | |
| 169 for(int i=0;i<3;i++) | |
| 170 { | |
| 634 | 171 sensorState[i] = sensorOK; |
| 172 | |
| 38 | 173 if(sensorActive[i]) |
| 174 { | |
| 563 | 175 if( (stateUsed->lifeData.sensorVoltage_mV[i] < 8) || |
| 176 (stateUsed->lifeData.sensorVoltage_mV[i] > 250)) | |
| 38 | 177 { |
| 178 sensorActive[i] = 0; | |
| 179 switch(i) | |
| 180 { | |
| 181 case 0: | |
| 182 sensorNotActiveBinary |= 1; | |
| 183 break; | |
| 184 case 1: | |
| 185 sensorNotActiveBinary |= 2; | |
| 186 break; | |
| 187 case 2: | |
| 188 sensorNotActiveBinary |= 4; | |
| 189 break; | |
| 190 } | |
| 191 } | |
| 192 } | |
| 193 } | |
| 194 | |
| 195 *outOfBouds1 = 0; | |
| 196 *outOfBouds2 = 0; | |
| 197 *outOfBouds3 = 0; | |
| 198 | |
| 199 /* with two, one or no sensor, there is nothing to compare anymore | |
| 200 */ | |
| 201 if(sensorNotActiveBinary) | |
| 202 { | |
| 203 // set outOfBounds for both tests | |
| 204 if(!sensorActive[0]) | |
| 205 *outOfBouds1 = 1; | |
| 206 | |
| 207 if(!sensorActive[1]) | |
| 208 *outOfBouds2 = 1; | |
| 209 | |
| 210 if(!sensorActive[2]) | |
| 211 *outOfBouds3 = 1; | |
| 212 } | |
| 213 else | |
| 214 { | |
| 634 | 215 /* Check two or more of Three */ |
| 216 /* compare every sensor with each other. If there is only one mismatch the value might be OK. In case both comparisons fail the sensor is out of bounds */ | |
| 217 if(fabsf(stateUsed->lifeData.ppO2Sensor_bar[0] - stateUsed->lifeData.ppO2Sensor_bar[1]) > MAX_SENSOR_COMPARE_DEVIATION) | |
| 38 | 218 { |
| 634 | 219 sensorState[0]++; |
| 220 sensorState[1]++; | |
| 38 | 221 } |
| 634 | 222 if(fabsf(stateUsed->lifeData.ppO2Sensor_bar[0] - stateUsed->lifeData.ppO2Sensor_bar[2]) > MAX_SENSOR_COMPARE_DEVIATION) |
| 38 | 223 { |
| 634 | 224 sensorState[0]++; |
| 225 sensorState[2]++; | |
| 226 } | |
| 227 if(fabsf(stateUsed->lifeData.ppO2Sensor_bar[1] - stateUsed->lifeData.ppO2Sensor_bar[2]) > MAX_SENSOR_COMPARE_DEVIATION) | |
| 228 { | |
| 229 sensorState[1]++; | |
| 230 sensorState[2]++; | |
| 38 | 231 } |
| 634 | 232 for(index = 0; index < 3; index++) |
| 38 | 233 { |
| 634 | 234 if(sensorState[index] == SensorOutOfBounds) |
| 235 { | |
| 236 switch(index) | |
| 237 { | |
| 238 case 0: | |
| 239 *outOfBouds1 = 1; | |
| 240 break; | |
| 241 case 1: | |
| 242 *outOfBouds2 = 1; | |
| 243 break; | |
| 244 case 2: | |
| 245 *outOfBouds3 = 1; | |
| 246 break; | |
| 247 default: | |
| 248 break; | |
| 249 } | |
| 250 } | |
| 38 | 251 } |
| 252 } | |
| 253 } | |
| 254 | |
| 635 | 255 /* this function is called out of the 100ms callback => to be considered for debouncing */ |
| 38 | 256 uint8_t get_ppO2SensorWeightedResult_cbar(void) |
| 257 { | |
| 634 | 258 static uint8_t lastValidValue = 0; |
| 38 | 259 int8_t sensorOutOfBound[3]; |
| 260 uint16_t result = 0; | |
| 261 uint8_t count = 0; | |
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262 uint8_t retVal = 0; |
| 38 | 263 |
| 563 | 264 test_O2_sensor_values_outOfBounds(&sensorOutOfBound[0], &sensorOutOfBound[1], &sensorOutOfBound[2]); |
| 38 | 265 |
| 266 for(int i=0;i<3;i++) | |
| 267 { | |
| 268 if(!sensorOutOfBound[i]) | |
| 269 { | |
| 563 | 270 result += stateUsed->lifeData.ppO2Sensor_bar[i] * 100.0; /* convert centibar used by HUB */ |
| 38 | 271 count++; |
| 272 } | |
| 273 } | |
| 634 | 274 if(count == 0) /* all sensors out of bounds! => return last valid value as workaround till diver takes action */ |
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275 { |
| 635 | 276 if(debounce_warning_fallback(100)) |
| 277 { | |
| 278 set_warning_fallback(); | |
| 279 retVal = tCCR_fallbackToFixedSetpoint(); /* this function only changes setpoint if option is enabled */ | |
| 280 } | |
| 281 if(retVal == 0) | |
| 282 { | |
| 283 retVal = lastValidValue; | |
| 284 } | |
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285 } |
| 38 | 286 else |
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287 { |
| 635 | 288 reset_debounce_warning_fallback(); |
| 289 retVal = (uint8_t)(result / count); | |
| 290 lastValidValue = retVal; | |
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291 } |
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292 return retVal; |
| 38 | 293 } |
| 294 | |
| 295 | |
| 296 void tCCR_init(void) | |
| 297 { | |
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298 uint8_t loop; |
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299 |
| 38 | 300 StartListeningToUART_HUD = 1; |
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301 |
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302 SDiveState* pDiveData = stateRealGetPointerWrite(); |
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303 for(loop=0;loop<(2*NUM_GASES+1);loop++) |
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304 { |
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305 pDiveData->lifeData.bottle_bar_age_MilliSeconds[loop] = BOTTLE_SENSOR_TIMEOUT; |
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306 } |
| 38 | 307 } |
| 308 | |
| 309 | |
| 310 /* after 3 seconds without update from HUD | |
| 311 * data is considered old | |
| 312 */ | |
| 313 void tCCR_tick(void) | |
| 314 { | |
| 563 | 315 if(settingsGetPointer()->ppo2sensors_source == O2_SENSOR_SOURCE_OPTIC) |
| 316 { | |
| 317 if(HUDTimeoutCount < 3 * 10) | |
| 318 HUDTimeoutCount++; | |
| 319 else | |
| 320 { | |
| 321 data_old__lost_connection_to_HUD = 1; | |
| 322 if(HUDTimeoutCount < 20 * 10) | |
| 323 HUDTimeoutCount++; | |
| 324 else | |
| 325 tCCR_fallbackToFixedSetpoint(); | |
| 326 } | |
| 327 } | |
| 38 | 328 } |
| 329 | |
|
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330 void tCCR_SetRXIndication(void) |
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331 { |
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332 static uint8_t floatingRXCount = 0; |
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333 |
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334 if((UartIR_HUD_Handle.RxXferSize == HUD_RX_FRAME_LENGTH) || (UartIR_HUD_Handle.RxXferSize == HUD_RX_FRAME_LENGTH - 1)) /* we expected a complete frame */ |
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335 { |
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336 UartReadyHUD = SET; |
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337 LastReceivedTick_HUD = HAL_GetTick(); |
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338 floatingRXCount = 0; |
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339 } |
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340 else /* follow up of error handling */ |
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341 { |
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342 if(time_elapsed_ms(LastReceivedTick_HUD, HAL_GetTick()) > HUD_RX_FRAME_BREAK_MS) /* Reception took a while => frame start detected */ |
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343 { |
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344 HAL_UART_Receive_IT(&UartIR_HUD_Handle, &receiveHUDraw[1], 14); /* We have already the first byte => get the missing 14 */ |
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345 } |
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346 else |
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347 { |
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348 if(floatingRXCount++ < HUD_BABBLING_IDIOT) |
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349 { |
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350 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, 1); /* Start polling of incoming bytes */ |
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351 } |
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352 else /* Significant amount of data comming in without break => disable input */ |
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353 { /* by not reactivation HUD RX, no recovery fromthis state */ |
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354 stateUsedWrite->diveSettings.ppo2sensors_deactivated = 0x07; /* Display deactivation */ |
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355 } |
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356 } |
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357 } |
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358 |
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359 } |
| 38 | 360 |
| 361 void tCCR_restart(void) | |
| 362 { | |
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363 HAL_UART_AbortReceive_IT(&UartIR_HUD_Handle); /* Called by the error handler. RX will be restarted by control function */ |
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364 StartListeningToUART_HUD = 1; |
| 38 | 365 } |
| 366 | |
| 367 | |
| 368 void tCCR_control(void) | |
| 369 { | |
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370 uint16_t checksum = 0; |
| 457 | 371 #ifdef ENABLE_BOTTLE_SENSOR |
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372 SDiveState *pLivedata = stateRealGetPointerWrite(); |
| 457 | 373 #endif |
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374 |
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375 if((UartReadyHUD == RESET) && StartListeningToUART_HUD && (time_elapsed_ms(LastReceivedTick_HUD, HAL_GetTick()) > HUD_RX_START_DELAY_MS)) |
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376 { |
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377 StartListeningToUART_HUD = 0; |
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378 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, HUD_RX_FRAME_LENGTH); |
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379 } |
| 38 | 380 |
| 381 if(UartReadyHUD == SET) | |
| 382 { | |
| 383 UartReadyHUD = RESET; | |
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384 StartListeningToUART_HUD = 1; |
| 38 | 385 |
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386 /* check if received package is valid */ |
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387 for(int i=0;i<13;i++) |
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388 { |
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389 checksum += receiveHUDraw[i]; |
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390 } |
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391 receiveHUD[!boolHUDdata].checksum = receiveHUDraw[13] + (256 * receiveHUDraw[14]); |
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392 if(checksum == receiveHUD[!boolHUDdata].checksum) |
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393 { |
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394 #ifdef ENABLE_BOTTLE_SENSOR |
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395 if(receiveHUDraw[0] == 0xA5) /* code for pressure sensor */ |
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396 { |
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397 pLivedata->lifeData.bottle_bar[pLivedata->lifeData.actualGas.GasIdInSettings] = receiveHUDraw[10]; |
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398 pLivedata->lifeData.bottle_bar_age_MilliSeconds[pLivedata->lifeData.actualGas.GasIdInSettings] = 0; |
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399 } |
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400 else |
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401 #endif |
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402 /* handle O2 sensor data */ |
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403 { |
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404 memcpy(&receiveHUD[!boolHUDdata], receiveHUDraw, 11); |
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405 receiveHUD[!boolHUDdata].battery_voltage_mV = receiveHUDraw[11] + (256 * receiveHUDraw[12]); |
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406 } |
| 38 | 407 |
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408 boolHUDdata = !boolHUDdata; |
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409 HUDTimeoutCount = 0; |
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410 data_old__lost_connection_to_HUD = 0; |
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411 } |
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412 else |
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413 { |
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414 if(data_old__lost_connection_to_HUD) /* we lost connection, maybe due to RX shift => start single byte read to resynchronize */ |
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415 { |
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416 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, 1); |
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417 StartListeningToUART_HUD = 0; |
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418 } |
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419 } |
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420 memset(receiveHUDraw,0,sizeof(receiveHUDraw)); |
| 38 | 421 } |
| 422 } | |
| 423 | |
| 424 #endif | |
| 425 /* Private functions ---------------------------------------------------------*/ | |
| 426 | |
| 635 | 427 static uint8_t tCCR_fallbackToFixedSetpoint(void) |
| 38 | 428 { |
| 635 | 429 uint8_t retVal = 0; |
| 38 | 430 if((stateUsed->mode == MODE_DIVE) && (stateUsed->diveSettings.diveMode == DIVEMODE_CCR) && (stateUsed->diveSettings.CCR_Mode == CCRMODE_Sensors) && (stateUsed->diveSettings.fallbackOption)) |
| 431 { | |
| 432 uint8_t setpointCbar, actualGasID; | |
| 433 | |
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434 setpointCbar = stateUsed->diveSettings.setpoint[1].setpoint_cbar; |
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435 stateUsedWrite->diveSettings.CCR_Mode = CCRMODE_FixedSetpoint; |
| 38 | 436 |
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437 actualGasID = stateUsed->lifeData.actualGas.GasIdInSettings; |
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438 setActualGas_DM(&stateUsedWrite->lifeData,actualGasID,setpointCbar); |
| 38 | 439 |
| 440 set_warning_fallback(); | |
| 635 | 441 retVal = stateUsed->diveSettings.setpoint[1].setpoint_cbar; |
| 38 | 442 } |
| 635 | 443 return retVal; |
| 38 | 444 } |