Mercurial > public > ostc4
view Small_CPU/Src/batteryCharger.c @ 849:fce639612464 Evo_2_23
Consider flipped screen for Predive menu:
In previous version some values were not optimized for the visualization while the screen is flipped.
author | Ideenmodellierer |
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date | Thu, 29 Feb 2024 18:49:55 +0100 |
parents | b1e24513b83e |
children | d32901746950 |
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/** ****************************************************************************** * @file batteryCharger.c * @author heinrichs weikamp gmbh * @date 09-Dec-2014 * @version V0.0.1 * @since 09-Dec-2014 * @brief LTC4054 Battery Charger * @verbatim ============================================================================== ##### How to use ##### ============================================================================== The bq5105x provides one status output, CHG. This output is an open-drain NMOS device that is rated to 20 V. The open-drain FET connected to the CHG pin will be turned on whenever the output (BAT) of the charger is enabled. As a note, the output of the charger supply will not be enabled if the VRECT-REG does not converge to the no-load target voltage. CHG F4 7 O Open-drain output � active when BAT is enabled. Float if not used. @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2015 heinrichs weikamp</center></h2> * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "batteryCharger.h" #include "batteryGasGauge.h" #include "stm32f4xx_hal.h" #include "scheduler.h" /* Use This compile switch to select the new charger status control implementation */ #define ENABLE_CHARGER_STATUS_V2 #define CHARGER_DEBOUNCE_SECONDS (6u) /* 6 seconds used to avoid problems with charger interrupts / disconnections */ static uint8_t battery_i_charge_status = 0; static uint16_t battery_charger_counter = 0; #ifdef ENABLE_CHARGER_STATUS_V2 static chargerState_t batteryChargerState = Charger_NotConnected; #endif /* can be 0, 1 or 255 * 0 is disconnected * 1 is charging * 255 is full */ uint8_t get_charge_status(void) { return battery_i_charge_status; } void set_charge_state(uint8_t newState) { #ifdef ENABLE_CHARGER_STATUS_V2 if(newState < Charger_END) { batteryChargerState = newState; } #endif } uint8_t get_charge_state(void) { return batteryChargerState; } void init_battery_charger_status(void) { #ifdef OSTC_ON_DISCOVERY_HARDWARE return; #endif CHARGE_IN_GPIO_ENABLE(); CHARGE_OUT_GPIO_ENABLE(); ReInit_battery_charger_status_pins(); } void ReInit_battery_charger_status_pins(void) { #ifdef OSTC_ON_DISCOVERY_HARDWARE return; #endif GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.Pin = CHARGE_IN_PIN; GPIO_InitStructure.Mode = GPIO_MODE_INPUT; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); GPIO_InitStructure.Pin = CHARGE_OUT_PIN; GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); } void DeInit_battery_charger_status_pins(void) { #ifdef OSTC_ON_DISCOVERY_HARDWARE return; #endif GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; GPIO_InitStructure.Speed = GPIO_SPEED_LOW; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Pin = CHARGE_IN_PIN; HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); GPIO_InitStructure.Pin = CHARGE_OUT_PIN; HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); } /* static counter is used to avoid multiple counts of charge startings and after that it is used, starting at 127 to count for the charge full signal there a short disconnections with the QI charger therefore the battery_charger_counter has a countdown instead of = 0. battery_gas_gauge_set_charge_full and scheduleUpdateDeviceDataChargerFull are set after disconnection as the charging process continues as long as not disconnected to prevent the short disconnections the battery_charger_counter is used too including upcounting again while battery_i_charge_status == 255 and the connection is established */ void battery_charger_get_status_and_contral_battery_gas_gauge(uint8_t cycleTimeBase) { #ifdef ENABLE_CHARGER_STATUS_V2 static uint8_t notifyChargeComplete = 0; #endif #ifdef OSTC_ON_DISCOVERY_HARDWARE return; #endif #ifdef ENABLE_CHARGER_STATUS_V2 if(batteryChargerState == Charger_ColdStart) /* wait for the first valid voltage meassurement */ { if((global.lifeData.battery_voltage != BATTERY_DEFAULT_VOLTAGE) && (global.lifeData.battery_voltage < BATTERY_CHARGER_CONNECTED_VOLTAGE)) { if(global.lifeData.battery_voltage > BATTERY_ENDOF_CHARGE_VOLTAGE) /* Voltage close to full state => maybe new battery inserted */ { battery_gas_gauge_set_charge_full(); } batteryChargerState = Charger_NotConnected; } } else { /* on disconnection or while disconnected */ if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) { switch(batteryChargerState) { case Charger_WarmUp: case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_lostConnection; global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection; batteryChargerState = Charger_LostConnection; if(cycleTimeBase > CHARGER_DEBOUNCE_SECONDS) /* adapt connection lost detection to sleep mode */ { battery_charger_counter = cycleTimeBase + 1; } else { battery_charger_counter = CHARGER_DEBOUNCE_SECONDS; } break; case Charger_Finished: battery_charger_counter = 0; batteryChargerState = Charger_LostConnection; /* no break */ case Charger_LostConnection: /* the charger stops charging when charge current is 1/10 */ /* Basically it is OK to rate a charging as complete if a defined voltage is reached */ if(((battery_gas_gauge_isChargeValueValid() == 0) || (global.lifeData.battery_charge < 90)) && (get_voltage() >= BATTERY_ENDOF_CHARGE_VOLTAGE) && (get_voltage() < BATTERY_CHARGER_CONNECTED_VOLTAGE)) { notifyChargeComplete = 1; } else { notifyChargeComplete = 0; } if(battery_charger_counter >= cycleTimeBase) { battery_charger_counter -= cycleTimeBase; } else { battery_charger_counter = 0; battery_i_charge_status = 0; global.dataSendToMaster.chargeStatus = CHARGER_off; global.deviceDataSendToMaster.chargeStatus = CHARGER_off; if(notifyChargeComplete) { battery_gas_gauge_set_charge_full(); scheduleUpdateDeviceDataChargerFull(); notifyChargeComplete = 0; } batteryChargerState = Charger_NotConnected; } break; default: break; } } else { /* connected */ /* wait for disconnection to write and reset */ switch(batteryChargerState) { case Charger_NotConnected: battery_i_charge_status = 1; battery_charger_counter = 0; batteryChargerState = Charger_WarmUp; break; case Charger_LostConnection: batteryChargerState = Charger_Active; break; case Charger_WarmUp: battery_charger_counter += cycleTimeBase; if(battery_charger_counter >= CHARGER_DEBOUNCE_SECONDS ) { battery_i_charge_status = 2; scheduleUpdateDeviceDataChargerCharging(); batteryChargerState = Charger_Active; } /* no break */ case Charger_Finished: case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_running; global.deviceDataSendToMaster.chargeStatus = CHARGER_running; /* drive the output pin high to determine the state of the charger */ GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.Pin = CHARGE_OUT_PIN; GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET); HAL_Delay(1); if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) /* high => charger stopped charging */ { batteryChargerState = Charger_Finished; global.dataSendToMaster.chargeStatus = CHARGER_complete; global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; battery_charger_counter = 30; notifyChargeComplete = 1; } else { if(global.lifeData.battery_charge > 100.0) /* still charging but indicator is set to full => decrease to 99% to keep count increasing */ { battery_gas_gauge_set(99.0); } if(batteryChargerState == Charger_Finished) /* voltage dropped below the hysteresis again => charging restarted */ { batteryChargerState = Charger_Active; notifyChargeComplete = 0; } } /* restore high impedance to be able to detect disconnection */ GPIO_InitStructure.Pin = CHARGE_OUT_PIN; GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); HAL_Delay(1); break; default: /* wait for disconnection */ break; } } } #else /* on disconnection or while disconnected */ if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) { if(battery_charger_counter) { battery_charger_counter--; global.dataSendToMaster.chargeStatus = CHARGER_lostConnection; global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection; } /* max count down to 127+5 or 127+20 */ if((battery_i_charge_status == 255) && battery_charger_counter < 127) { // battery_gas_gauge_set_charge_full(); // scheduleUpdateDeviceDataChargerFull(); battery_charger_counter = 0; } if(battery_charger_counter == 0) { battery_i_charge_status = 0; global.dataSendToMaster.chargeStatus = CHARGER_off; global.deviceDataSendToMaster.chargeStatus = CHARGER_off; } return; } /* connected */ /* wait for disconnection to write and reset */ if(battery_i_charge_status == 255) { global.dataSendToMaster.chargeStatus = CHARGER_complete; global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; if(((cycleTimeBase > 1) && (battery_charger_counter < 127+5)) || (battery_charger_counter < 127+20)) battery_charger_counter++; return; } if(battery_charger_counter == 0) battery_i_charge_status = 1; /* charger is connected and didn't signal full yet */ global.dataSendToMaster.chargeStatus = CHARGER_running; global.deviceDataSendToMaster.chargeStatus = CHARGER_running; GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.Pin = CHARGE_OUT_PIN; GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET); HAL_Delay(1); if(battery_charger_counter < 120) { if(cycleTimeBase == 1) battery_charger_counter++; else { battery_charger_counter += 30; if(battery_charger_counter >= 127) battery_charger_counter = 126; } } else if(battery_charger_counter < 127) { battery_charger_counter = 127; if(battery_i_charge_status < 2) { battery_i_charge_status = 2; scheduleUpdateDeviceDataChargerCharging(); } } if(battery_charger_counter >= 127) { if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN) || (get_voltage() >= 4.1f)) { battery_charger_counter++; if(((cycleTimeBase > 1) && (battery_charger_counter > 127+5)) || (battery_charger_counter > 127+20)) { battery_charger_counter = 127; if(get_voltage() >= 4.1f) { battery_i_charge_status = 255; battery_gas_gauge_set_charge_full(); scheduleUpdateDeviceDataChargerFull(); } } } else battery_charger_counter = 127; } GPIO_InitStructure.Pin = CHARGE_OUT_PIN; GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); #endif } /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/