Mercurial > public > ostc4
annotate Small_CPU/Src/batteryCharger.c @ 666:12d029f38430 Betatest
increase version numbers for upcomming release
author | heinrichsweikamp |
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date | Sat, 12 Mar 2022 14:57:54 +0100 |
parents | 1b995079c045 |
children | 079bb5b22c06 |
rev | line source |
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38 | 1 /** |
2 ****************************************************************************** | |
3 * @file batteryCharger.c | |
4 * @author heinrichs weikamp gmbh | |
5 * @date 09-Dec-2014 | |
6 * @version V0.0.1 | |
7 * @since 09-Dec-2014 | |
8 * @brief LTC4054 Battery Charger | |
9 * | |
10 @verbatim | |
11 ============================================================================== | |
12 ##### How to use ##### | |
13 ============================================================================== | |
14 | |
15 The bq5105x provides one status output, CHG. This output is an open-drain NMOS device that is rated to 20 V. | |
16 The open-drain FET connected to the CHG pin will be turned on whenever the output (BAT) of the charger is | |
17 enabled. As a note, the output of the charger supply will not be enabled if the VRECT-REG does not converge to the | |
18 no-load target voltage. | |
19 | |
644 | 20 CHG F4 7 O Open-drain output � active when BAT is enabled. Float if not used. |
38 | 21 |
22 @endverbatim | |
23 ****************************************************************************** | |
24 * @attention | |
25 * | |
26 * <h2><center>© COPYRIGHT(c) 2015 heinrichs weikamp</center></h2> | |
27 * | |
28 ****************************************************************************** | |
29 */ | |
30 /* Includes ------------------------------------------------------------------*/ | |
31 #include "batteryCharger.h" | |
32 #include "batteryGasGauge.h" | |
33 #include "stm32f4xx_hal.h" | |
34 #include "scheduler.h" | |
35 | |
36 | |
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37 /* Use This compile switch to select the new charger status control implementation */ |
644 | 38 #define ENABLE_CHARGER_STATUS_V2 |
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39 |
662 | 40 #define CHARGER_DEBOUNCE_SECONDS (6u) /* 6 seconds used to avoid problems with charger interrupts / disconnections */ |
38 | 41 |
42 uint8_t battery_i_charge_status = 0; | |
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43 uint16_t battery_charger_counter = 0; |
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44 |
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45 #ifdef ENABLE_CHARGER_STATUS_V2 |
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46 static chargerState_t batteryChargerState = Charger_NotConnected; |
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47 #endif |
38 | 48 |
49 /* can be 0, 1 or 255 | |
50 * 0 is disconnected | |
51 * 1 is charging | |
52 * 255 is full | |
53 */ | |
54 uint8_t get_charge_status(void) | |
55 { | |
56 return battery_i_charge_status; | |
57 } | |
58 | |
662 | 59 void set_charge_state(uint8_t newState) |
60 { | |
61 #ifdef ENABLE_CHARGER_STATUS_V2 | |
62 if(newState < Charger_END) | |
63 { | |
64 batteryChargerState = newState; | |
65 } | |
66 #endif | |
67 } | |
68 | |
69 uint8_t get_charge_state(void) | |
70 { | |
71 return batteryChargerState; | |
72 } | |
73 | |
38 | 74 void init_battery_charger_status(void) |
75 { | |
76 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
77 return; | |
78 #endif | |
79 | |
80 CHARGE_IN_GPIO_ENABLE(); | |
81 CHARGE_OUT_GPIO_ENABLE(); | |
82 | |
83 ReInit_battery_charger_status_pins(); | |
84 } | |
85 | |
86 void ReInit_battery_charger_status_pins(void) | |
87 { | |
88 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
89 return; | |
90 #endif | |
91 | |
92 GPIO_InitTypeDef GPIO_InitStructure; | |
93 | |
94 GPIO_InitStructure.Pin = CHARGE_IN_PIN; | |
95 GPIO_InitStructure.Mode = GPIO_MODE_INPUT; | |
96 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
97 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
98 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); | |
99 | |
100 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
101 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
102 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
103 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
104 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
105 } | |
106 | |
107 | |
108 void DeInit_battery_charger_status_pins(void) | |
109 { | |
110 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
111 return; | |
112 #endif | |
113 GPIO_InitTypeDef GPIO_InitStructure; | |
114 | |
115 | |
116 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
117 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
118 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
119 | |
120 GPIO_InitStructure.Pin = CHARGE_IN_PIN; | |
121 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); | |
122 | |
123 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
124 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
125 } | |
126 | |
127 /* static counter is used to avoid multiple counts of charge startings | |
128 and after that it is used, starting at 127 to count for the charge full signal | |
129 | |
130 there a short disconnections with the QI charger | |
131 therefore the battery_charger_counter has a countdown instead of = 0. | |
132 | |
133 battery_gas_gauge_set_charge_full and scheduleUpdateDeviceDataChargerFull are | |
134 set after disconnection as the charging process continues as long as not disconnected | |
135 to prevent the short disconnections the battery_charger_counter is used too including | |
136 upcounting again while battery_i_charge_status == 255 and the connection is established | |
137 | |
138 */ | |
139 | |
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140 void battery_charger_get_status_and_contral_battery_gas_gauge(uint8_t cycleTimeBase) |
38 | 141 { |
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142 #ifdef ENABLE_CHARGER_STATUS_V2 |
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143 static uint8_t notifyChargeComplete = 0; |
662 | 144 static float chargeValueAtStart = 0; |
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145 #endif |
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146 |
38 | 147 #ifdef OSTC_ON_DISCOVERY_HARDWARE |
148 return; | |
149 #endif | |
150 | |
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151 #ifdef ENABLE_CHARGER_STATUS_V2 |
662 | 152 |
153 if(batteryChargerState == Charger_ColdStart) /* wait for the first valid voltage meassurement */ | |
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154 { |
662 | 155 if(global.lifeData.battery_voltage != BATTERY_DEFAULT_VOLTAGE) |
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156 { |
662 | 157 if(global.lifeData.battery_voltage > BATTERY_ENDOF_CHARGE_VOLTAGE) /* Voltage close to full state => maybe new battery inserted */ |
158 { | |
159 battery_gas_gauge_set_charge_full(); | |
160 } | |
161 else /* unknown state => reset to 0% */ | |
162 { | |
163 battery_gas_gauge_set(0); | |
164 } | |
165 batteryChargerState = Charger_NotConnected; | |
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166 } |
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167 } |
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168 else |
662 | 169 { /* on disconnection or while disconnected */ |
170 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) | |
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171 { |
662 | 172 switch(batteryChargerState) |
173 { | |
174 case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
175 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
176 batteryChargerState = Charger_LostConnection; | |
177 battery_charger_counter = CHARGER_DEBOUNCE_SECONDS; | |
178 break; | |
179 case Charger_LostConnection: if(get_voltage() >= BATTERY_ENDOF_CHARGE_VOLTAGE) /* the charger stops charging when charge current is 1/10 */ | |
180 /* Basically it is OK to rate a charging as complete if a defined voltage is reached */ | |
181 { | |
182 batteryChargerState = Charger_Finished; | |
183 global.dataSendToMaster.chargeStatus = CHARGER_complete; | |
184 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; | |
185 notifyChargeComplete = 1; | |
186 } | |
187 /* no break */ | |
188 case Charger_WarmUp: | |
189 case Charger_Finished: if(battery_charger_counter >= cycleTimeBase) | |
190 { | |
191 battery_charger_counter -= cycleTimeBase; | |
192 global.dataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
193 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
194 batteryChargerState = Charger_LostConnection; | |
195 } | |
196 else | |
197 { | |
198 battery_charger_counter = 0; | |
199 battery_i_charge_status = 0; | |
200 global.dataSendToMaster.chargeStatus = CHARGER_off; | |
201 global.deviceDataSendToMaster.chargeStatus = CHARGER_off; | |
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202 |
662 | 203 if(notifyChargeComplete) |
204 { | |
205 battery_gas_gauge_set_charge_full(); | |
206 scheduleUpdateDeviceDataChargerFull(); | |
207 notifyChargeComplete = 0; | |
208 if(cycleTimeBase > 2) | |
209 { | |
210 HAL_Delay(50); /* I2C operations are pending in the background. Wait to avoid data loose in caused to potential change to sleep state */ | |
211 } | |
212 } | |
213 else | |
214 { | |
215 if(chargeValueAtStart < 1.0) /* charging started with unknown value => reset charge state reported by charger */ | |
216 { | |
217 battery_gas_gauge_set(0); | |
218 } | |
219 } | |
220 batteryChargerState = Charger_NotConnected; | |
221 } | |
222 break; | |
223 default: break; | |
224 } | |
225 } | |
226 else | |
227 { | |
228 /* connected */ | |
229 /* wait for disconnection to write and reset */ | |
230 switch(batteryChargerState) | |
231 { | |
232 case Charger_NotConnected: battery_i_charge_status = 1; | |
233 battery_charger_counter = 0; | |
234 batteryChargerState = Charger_WarmUp; | |
235 chargeValueAtStart = global.lifeData.battery_charge; | |
236 break; | |
237 case Charger_LostConnection: batteryChargerState = Charger_Active; | |
238 break; | |
239 case Charger_WarmUp: battery_charger_counter += cycleTimeBase; | |
240 if(battery_charger_counter >= CHARGER_DEBOUNCE_SECONDS ) | |
241 { | |
242 battery_i_charge_status = 2; | |
243 scheduleUpdateDeviceDataChargerCharging(); | |
244 batteryChargerState = Charger_Active; | |
245 } | |
246 /* no break */ | |
247 case Charger_Finished: | |
248 case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_running; | |
249 global.deviceDataSendToMaster.chargeStatus = CHARGER_running; | |
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250 |
662 | 251 /* drive the output pin high to determine the state of the charger */ |
252 GPIO_InitTypeDef GPIO_InitStructure; | |
253 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
254 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; | |
255 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
256 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
257 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
258 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET); | |
259 HAL_Delay(1); | |
260 | |
261 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) /* high => charger stopped charging */ | |
262 { | |
263 batteryChargerState = Charger_Finished; | |
264 global.dataSendToMaster.chargeStatus = CHARGER_complete; | |
265 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; | |
266 battery_charger_counter = 30; | |
267 notifyChargeComplete = 1; | |
268 } | |
269 else | |
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270 { |
662 | 271 if(batteryChargerState == Charger_Finished) /* voltage dropped below the hysteresis again => charging restarted */ |
272 { | |
273 batteryChargerState = Charger_Active; | |
274 notifyChargeComplete = 0; | |
275 } | |
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276 } |
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277 |
662 | 278 /* restore high impedance to be able to detect disconnection */ |
279 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
280 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
281 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
282 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
283 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
284 HAL_Delay(1); | |
285 break; | |
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286 |
662 | 287 default: /* wait for disconnection */ |
288 break; | |
289 } | |
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290 } |
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291 } |
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292 #else |
38 | 293 /* on disconnection or while disconnected */ |
294 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) | |
295 { | |
296 if(battery_charger_counter) | |
297 { | |
298 battery_charger_counter--; | |
299 global.dataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
300 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
301 } | |
302 /* max count down to 127+5 or 127+20 */ | |
303 if((battery_i_charge_status == 255) && battery_charger_counter < 127) | |
304 { | |
305 // battery_gas_gauge_set_charge_full(); | |
306 // scheduleUpdateDeviceDataChargerFull(); | |
307 battery_charger_counter = 0; | |
308 } | |
309 | |
310 if(battery_charger_counter == 0) | |
311 { | |
312 battery_i_charge_status = 0; | |
313 global.dataSendToMaster.chargeStatus = CHARGER_off; | |
314 global.deviceDataSendToMaster.chargeStatus = CHARGER_off; | |
315 | |
316 } | |
317 return; | |
318 } | |
319 | |
320 /* connected */ | |
321 | |
322 /* wait for disconnection to write and reset */ | |
323 if(battery_i_charge_status == 255) | |
324 { | |
325 global.dataSendToMaster.chargeStatus = CHARGER_complete; | |
326 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; | |
327 | |
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328 if(((cycleTimeBase > 1) && (battery_charger_counter < 127+5)) || (battery_charger_counter < 127+20)) |
38 | 329 battery_charger_counter++; |
330 return; | |
331 } | |
332 | |
333 if(battery_charger_counter == 0) | |
334 battery_i_charge_status = 1; | |
335 | |
336 /* charger is connected and didn't signal full yet */ | |
337 global.dataSendToMaster.chargeStatus = CHARGER_running; | |
338 global.deviceDataSendToMaster.chargeStatus = CHARGER_running; | |
339 | |
340 GPIO_InitTypeDef GPIO_InitStructure; | |
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341 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; |
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342 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; |
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343 GPIO_InitStructure.Pull = GPIO_NOPULL; |
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344 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; |
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345 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); |
38 | 346 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET); |
347 HAL_Delay(1); | |
348 | |
349 | |
350 if(battery_charger_counter < 120) | |
351 { | |
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352 if(cycleTimeBase == 1) |
38 | 353 battery_charger_counter++; |
354 else | |
355 { | |
356 battery_charger_counter += 30; | |
357 if(battery_charger_counter >= 127) | |
358 battery_charger_counter = 126; | |
359 } | |
360 } | |
361 else | |
362 if(battery_charger_counter < 127) | |
363 { | |
364 battery_charger_counter = 127; | |
365 if(battery_i_charge_status < 2) | |
366 { | |
367 battery_i_charge_status = 2; | |
368 scheduleUpdateDeviceDataChargerCharging(); | |
369 } | |
370 } | |
371 | |
372 if(battery_charger_counter >= 127) | |
373 { | |
374 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN) || (get_voltage() >= 4.1f)) | |
375 { | |
376 battery_charger_counter++; | |
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377 if(((cycleTimeBase > 1) && (battery_charger_counter > 127+5)) || (battery_charger_counter > 127+20)) |
38 | 378 { |
379 battery_charger_counter = 127; | |
380 if(get_voltage() >= 4.1f) | |
381 { | |
382 battery_i_charge_status = 255; | |
383 battery_gas_gauge_set_charge_full(); | |
384 scheduleUpdateDeviceDataChargerFull(); | |
385 } | |
386 } | |
387 } | |
388 else | |
389 battery_charger_counter = 127; | |
390 } | |
391 | |
392 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
393 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
394 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
395 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
396 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
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397 #endif |
38 | 398 } |
399 | |
400 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/ |