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annotate Small_CPU/Src/batteryCharger.c @ 873:e373e90a48db Evo_2_23
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| author | heinrichsweikamp |
|---|---|
| date | Wed, 14 Aug 2024 16:44:46 +0200 |
| parents | d32901746950 |
| children |
| rev | line source |
|---|---|
| 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 | |
| 662 | 37 #define CHARGER_DEBOUNCE_SECONDS (6u) /* 6 seconds used to avoid problems with charger interrupts / disconnections */ |
| 38 | 38 |
| 668 | 39 static uint16_t battery_charger_counter = 0; |
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40 static chargerState_t batteryChargerState = Charger_NotConnected; |
| 38 | 41 |
| 662 | 42 void set_charge_state(uint8_t newState) |
| 43 { | |
| 44 if(newState < Charger_END) | |
| 45 { | |
| 46 batteryChargerState = newState; | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 uint8_t get_charge_state(void) | |
| 51 { | |
| 52 return batteryChargerState; | |
| 53 } | |
| 54 | |
| 38 | 55 void init_battery_charger_status(void) |
| 56 { | |
| 57 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
| 58 return; | |
| 59 #endif | |
| 60 | |
| 61 CHARGE_IN_GPIO_ENABLE(); | |
| 62 CHARGE_OUT_GPIO_ENABLE(); | |
| 63 | |
| 64 ReInit_battery_charger_status_pins(); | |
| 65 } | |
| 66 | |
| 67 void ReInit_battery_charger_status_pins(void) | |
| 68 { | |
| 69 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
| 70 return; | |
| 71 #endif | |
| 72 | |
| 73 GPIO_InitTypeDef GPIO_InitStructure; | |
| 74 | |
| 75 GPIO_InitStructure.Pin = CHARGE_IN_PIN; | |
| 76 GPIO_InitStructure.Mode = GPIO_MODE_INPUT; | |
| 77 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 78 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 79 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); | |
| 80 | |
| 81 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
| 82 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
| 83 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 84 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 85 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
| 86 } | |
| 87 | |
| 88 | |
| 89 void DeInit_battery_charger_status_pins(void) | |
| 90 { | |
| 91 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
| 92 return; | |
| 93 #endif | |
| 94 GPIO_InitTypeDef GPIO_InitStructure; | |
| 95 | |
| 96 | |
| 97 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
| 98 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 99 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 100 | |
| 101 GPIO_InitStructure.Pin = CHARGE_IN_PIN; | |
| 102 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); | |
| 103 | |
| 104 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
| 105 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
| 106 } | |
| 107 | |
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108 void battery_charger_get_status_and_contral_battery_gas_gauge(uint8_t cycleTimeBase) |
| 38 | 109 { |
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110 static uint8_t notifyChargeComplete = 0; |
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111 |
| 38 | 112 #ifdef OSTC_ON_DISCOVERY_HARDWARE |
| 113 return; | |
| 114 #endif | |
| 115 | |
| 662 | 116 if(batteryChargerState == Charger_ColdStart) /* wait for the first valid voltage meassurement */ |
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117 { |
| 859 | 118 if(global.lifeData.battery_voltage != BATTERY_DEFAULT_VOLTAGE) /* wait for first valid voltage value */ |
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119 { |
| 859 | 120 if((global.lifeData.battery_voltage < BATTERY_CHARGER_CONNECTED_VOLTAGE) |
| 121 && (global.lifeData.battery_voltage > BATTERY_ENDOF_CHARGE_VOLTAGE)) /* Voltage close to full state => maybe new battery inserted */ | |
| 662 | 122 { |
| 123 battery_gas_gauge_set_charge_full(); | |
| 124 } | |
| 125 batteryChargerState = Charger_NotConnected; | |
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126 } |
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127 } |
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128 else |
| 662 | 129 { /* on disconnection or while disconnected */ |
| 130 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) | |
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131 { |
| 662 | 132 switch(batteryChargerState) |
| 133 { | |
| 686 | 134 case Charger_WarmUp: |
| 662 | 135 case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_lostConnection; |
| 136 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
| 137 batteryChargerState = Charger_LostConnection; | |
| 686 | 138 if(cycleTimeBase > CHARGER_DEBOUNCE_SECONDS) /* adapt connection lost detection to sleep mode */ |
| 139 { | |
| 140 battery_charger_counter = cycleTimeBase + 1; | |
| 141 } | |
| 142 else | |
| 143 { | |
| 144 battery_charger_counter = CHARGER_DEBOUNCE_SECONDS; | |
| 145 } | |
| 662 | 146 break; |
| 859 | 147 case Charger_Finished: if((get_voltage() >= BATTERY_ENDOF_CHARGE_VOLTAGE) && (get_voltage() < BATTERY_CHARGER_CONNECTED_VOLTAGE)) /* stopping does not necessarily mean battery is full */ |
| 148 { | |
| 149 global.dataSendToMaster.chargeStatus = CHARGER_complete; | |
| 150 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; | |
| 151 notifyChargeComplete = 1; | |
| 152 } | |
| 153 battery_charger_counter = 10; | |
| 686 | 154 batteryChargerState = Charger_LostConnection; |
| 155 /* no break */ | |
| 668 | 156 case Charger_LostConnection: /* the charger stops charging when charge current is 1/10 */ |
| 157 /* Basically it is OK to rate a charging as complete if a defined voltage is reached */ | |
| 686 | 158 if(((battery_gas_gauge_isChargeValueValid() == 0) || (global.lifeData.battery_charge < 90)) && (get_voltage() >= BATTERY_ENDOF_CHARGE_VOLTAGE) && (get_voltage() < BATTERY_CHARGER_CONNECTED_VOLTAGE)) |
| 662 | 159 { |
| 160 notifyChargeComplete = 1; | |
| 161 } | |
| 686 | 162 if(battery_charger_counter >= cycleTimeBase) |
| 662 | 163 { |
| 164 battery_charger_counter -= cycleTimeBase; | |
| 165 } | |
| 166 else | |
| 167 { | |
| 168 battery_charger_counter = 0; | |
| 859 | 169 |
| 662 | 170 global.dataSendToMaster.chargeStatus = CHARGER_off; |
| 171 global.deviceDataSendToMaster.chargeStatus = CHARGER_off; | |
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172 |
| 662 | 173 if(notifyChargeComplete) |
| 174 { | |
| 175 battery_gas_gauge_set_charge_full(); | |
| 176 scheduleUpdateDeviceDataChargerFull(); | |
| 177 } | |
| 859 | 178 notifyChargeComplete = 0; |
| 662 | 179 batteryChargerState = Charger_NotConnected; |
| 180 } | |
| 181 break; | |
| 859 | 182 default: batteryChargerState = Charger_NotConnected; /* unexpected state => reinitialize state machine */ |
| 183 break; | |
| 662 | 184 } |
| 185 } | |
| 186 else | |
| 187 { | |
| 188 /* connected */ | |
| 189 /* wait for disconnection to write and reset */ | |
| 190 switch(batteryChargerState) | |
| 191 { | |
| 859 | 192 case Charger_NotConnected: battery_charger_counter = 0; |
| 662 | 193 batteryChargerState = Charger_WarmUp; |
| 194 break; | |
| 195 case Charger_LostConnection: batteryChargerState = Charger_Active; | |
| 196 break; | |
| 197 case Charger_WarmUp: battery_charger_counter += cycleTimeBase; | |
| 198 if(battery_charger_counter >= CHARGER_DEBOUNCE_SECONDS ) | |
| 199 { | |
| 200 scheduleUpdateDeviceDataChargerCharging(); | |
| 201 batteryChargerState = Charger_Active; | |
| 202 } | |
| 203 /* no break */ | |
| 204 case Charger_Finished: | |
| 205 case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_running; | |
| 206 global.deviceDataSendToMaster.chargeStatus = CHARGER_running; | |
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207 |
| 662 | 208 /* drive the output pin high to determine the state of the charger */ |
| 209 GPIO_InitTypeDef GPIO_InitStructure; | |
| 210 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
| 211 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; | |
| 212 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 213 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 214 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
| 215 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET); | |
| 216 HAL_Delay(1); | |
| 217 | |
| 218 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) /* high => charger stopped charging */ | |
| 219 { | |
| 859 | 220 battery_charger_counter = 30; |
| 662 | 221 batteryChargerState = Charger_Finished; |
| 222 } | |
| 223 else | |
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224 { |
| 668 | 225 if(global.lifeData.battery_charge > 100.0) /* still charging but indicator is set to full => decrease to 99% to keep count increasing */ |
| 226 { | |
| 227 battery_gas_gauge_set(99.0); | |
| 228 } | |
| 662 | 229 if(batteryChargerState == Charger_Finished) /* voltage dropped below the hysteresis again => charging restarted */ |
| 230 { | |
| 231 batteryChargerState = Charger_Active; | |
| 232 notifyChargeComplete = 0; | |
| 233 } | |
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234 } |
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235 |
| 662 | 236 /* restore high impedance to be able to detect disconnection */ |
| 237 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
| 238 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
| 239 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 240 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 241 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
| 242 HAL_Delay(1); | |
| 243 break; | |
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244 |
| 859 | 245 default: batteryChargerState = Charger_NotConnected; /* unexpected state => reinitialize state machine */ |
| 662 | 246 break; |
| 247 } | |
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248 } |
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249 } |
| 38 | 250 } |
| 251 | |
| 252 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/ |