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annotate Small_CPU/Src/batteryCharger.c @ 644:ebe3fc302ab8

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Compile with ENABLE_CHARGER_STATUS_V2
author heinrichs weikamp
date Tue, 30 Mar 2021 10:34:12 +0200
parents 5149cd644fbc
children e58f81cb25a7
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1 /**
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2 ******************************************************************************
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3 * @file batteryCharger.c
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4 * @author heinrichs weikamp gmbh
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5 * @date 09-Dec-2014
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6 * @version V0.0.1
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7 * @since 09-Dec-2014
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8 * @brief LTC4054 Battery Charger
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9 *
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10 @verbatim
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11 ==============================================================================
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12 ##### How to use #####
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13 ==============================================================================
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14
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15 The bq5105x provides one status output, CHG. This output is an open-drain NMOS device that is rated to 20 V.
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16 The open-drain FET connected to the CHG pin will be turned on whenever the output (BAT) of the charger is
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17 enabled. As a note, the output of the charger supply will not be enabled if the VRECT-REG does not converge to the
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18 no-load target voltage.
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19
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20 CHG F4 7 O Open-drain output � active when BAT is enabled. Float if not used.
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21
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22 @endverbatim
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23 ******************************************************************************
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24 * @attention
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25 *
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26 * <h2><center>&copy; COPYRIGHT(c) 2015 heinrichs weikamp</center></h2>
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27 *
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28 ******************************************************************************
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29 */
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30 /* Includes ------------------------------------------------------------------*/
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31 #include "batteryCharger.h"
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32 #include "batteryGasGauge.h"
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33 #include "stm32f4xx_hal.h"
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34 #include "scheduler.h"
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35
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36
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37 /* Use This compile switch to select the new charger status control implementation */
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38 #define ENABLE_CHARGER_STATUS_V2
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39
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40 #define CHARGE_IN_PIN GPIO_PIN_2
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41 #define CHARGE_IN_GPIO_PORT GPIOC
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42 #define CHARGE_IN_GPIO_ENABLE() __GPIOC_CLK_ENABLE()
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43
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44 #define CHARGE_OUT_PIN GPIO_PIN_1
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45 #define CHARGE_OUT_GPIO_PORT GPIOC
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46 #define CHARGE_OUT_GPIO_ENABLE() __GPIOC_CLK_ENABLE()
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47
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48 #define CHARGER_DEBOUNCE_SECONDS (120u) /* 120 seconds used to avoid problems with charger interrupts / disconnections */
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49
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50 uint8_t battery_i_charge_status = 0;
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51 uint16_t battery_charger_counter = 0;
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52
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53 #ifdef ENABLE_CHARGER_STATUS_V2
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54 typedef enum
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55 {
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56 Charger_NotConnected = 0, /* This is identified reading CHARGE_IN_PIN == HIGH */
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57 Charger_WarmUp, /* Charging started but counter did not yet reach a certain limit (used to debounce connect / disconnect events to avoid multiple increases of statistic charging cycle counter) */
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58 Charger_Active, /* Charging identified by CHARGE_IN_PIN == LOW for a certain time */
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59 Charger_Finished,
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60 Charger_LostConnection /* Intermediate state to debounce disconnecting events (including charging error state like over temperature) */
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61 } chargerState_t;
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62
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63 static chargerState_t batteryChargerState = Charger_NotConnected;
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64 #endif
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65
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66 /* can be 0, 1 or 255
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67 * 0 is disconnected
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68 * 1 is charging
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69 * 255 is full
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70 */
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71 uint8_t get_charge_status(void)
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72 {
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73 return battery_i_charge_status;
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74 }
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75
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76 void init_battery_charger_status(void)
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77 {
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78 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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79 return;
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80 #endif
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81
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82 CHARGE_IN_GPIO_ENABLE();
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83 CHARGE_OUT_GPIO_ENABLE();
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84
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85 ReInit_battery_charger_status_pins();
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86 }
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87
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88 void ReInit_battery_charger_status_pins(void)
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89 {
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90 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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91 return;
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92 #endif
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93
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94 GPIO_InitTypeDef GPIO_InitStructure;
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95
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96 GPIO_InitStructure.Pin = CHARGE_IN_PIN;
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97 GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
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98 GPIO_InitStructure.Pull = GPIO_NOPULL;
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99 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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100 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure);
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101
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102 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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103 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
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104 GPIO_InitStructure.Pull = GPIO_NOPULL;
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105 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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106 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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107 }
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108
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109
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110 void DeInit_battery_charger_status_pins(void)
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111 {
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112 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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113 return;
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114 #endif
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115 GPIO_InitTypeDef GPIO_InitStructure;
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116
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117
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118 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
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119 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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120 GPIO_InitStructure.Pull = GPIO_NOPULL;
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121
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122 GPIO_InitStructure.Pin = CHARGE_IN_PIN;
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123 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure);
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124
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125 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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126 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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127 }
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128
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129 /* static counter is used to avoid multiple counts of charge startings
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130 and after that it is used, starting at 127 to count for the charge full signal
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131
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132 there a short disconnections with the QI charger
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133 therefore the battery_charger_counter has a countdown instead of = 0.
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134
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135 battery_gas_gauge_set_charge_full and scheduleUpdateDeviceDataChargerFull are
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136 set after disconnection as the charging process continues as long as not disconnected
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137 to prevent the short disconnections the battery_charger_counter is used too including
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138 upcounting again while battery_i_charge_status == 255 and the connection is established
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139
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140 */
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141
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142 void battery_charger_get_status_and_contral_battery_gas_gauge(uint8_t cycleTimeBase)
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143 {
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144 #ifdef ENABLE_CHARGER_STATUS_V2
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145 static uint8_t notifyChargeComplete = 0;
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146 #endif
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147
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148 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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149 return;
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150 #endif
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151
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152 #ifdef ENABLE_CHARGER_STATUS_V2
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153 /* on disconnection or while disconnected */
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154 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN))
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155 {
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156 switch(batteryChargerState)
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157 {
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158 case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_lostConnection;
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159 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection;
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160 batteryChargerState = Charger_LostConnection;
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161 battery_charger_counter = CHARGER_DEBOUNCE_SECONDS;
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162
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163 if(get_voltage() >= 4.1f) /* the charger stops charging when charge current is 1/10. */
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164 { /* Basically it is OK to rate a charging as complete if a defined voltage is reached */
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165 batteryChargerState = Charger_Finished;
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166 global.dataSendToMaster.chargeStatus = CHARGER_complete;
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167 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete;
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168 battery_charger_counter = 30;
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169 notifyChargeComplete = 1;
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170 }
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171 break;
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172 case Charger_WarmUp:
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173 case Charger_Finished:
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174 case Charger_LostConnection: if(battery_charger_counter >= cycleTimeBase)
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175 {
5149cd644fbc Reimplemented charger status generation (deactivated):
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176 battery_charger_counter -= cycleTimeBase;
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177 global.dataSendToMaster.chargeStatus = CHARGER_lostConnection;
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178 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection;
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179 batteryChargerState = Charger_LostConnection;
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180 }
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181 else
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182 {
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183 battery_charger_counter = 0;
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184 global.dataSendToMaster.chargeStatus = CHARGER_off;
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185 global.deviceDataSendToMaster.chargeStatus = CHARGER_off;
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186
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187 if(notifyChargeComplete)
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188 {
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189 battery_gas_gauge_set_charge_full();
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190 scheduleUpdateDeviceDataChargerFull();
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191 notifyChargeComplete = 0;
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192 }
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193 batteryChargerState = Charger_NotConnected;
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194 }
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195 break;
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196 default: break;
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197 }
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198 }
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199 else
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200 {
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201 /* connected */
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202 /* wait for disconnection to write and reset */
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203 switch(batteryChargerState)
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204 {
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205 case Charger_NotConnected: battery_i_charge_status = 1;
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206 battery_charger_counter = 0;
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207 batteryChargerState = Charger_WarmUp;
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208 break;
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209 case Charger_LostConnection: batteryChargerState = Charger_Active;
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210 break;
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diff changeset
211 case Charger_WarmUp: battery_charger_counter += cycleTimeBase;
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212 if(battery_charger_counter >= CHARGER_DEBOUNCE_SECONDS )
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213 {
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214 battery_i_charge_status = 2;
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215 scheduleUpdateDeviceDataChargerCharging();
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216 batteryChargerState = Charger_Active;
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217 }
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218 /* no break */
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219 case Charger_Finished:
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220 case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_running;
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221 global.deviceDataSendToMaster.chargeStatus = CHARGER_running;
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222
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223 /* drive the output pin high to determine the state of the charger */
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224 GPIO_InitTypeDef GPIO_InitStructure;
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225 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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226 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
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227 GPIO_InitStructure.Pull = GPIO_NOPULL;
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228 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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229 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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230 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET);
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231 HAL_Delay(1);
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232
5149cd644fbc Reimplemented charger status generation (deactivated):
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233 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) /* high => charger stopped charging */
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234 {
5149cd644fbc Reimplemented charger status generation (deactivated):
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235 batteryChargerState = Charger_Finished;
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236 global.dataSendToMaster.chargeStatus = CHARGER_complete;
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237 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete;
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238 battery_charger_counter = 30;
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239 notifyChargeComplete = 1;
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diff changeset
240 }
5149cd644fbc Reimplemented charger status generation (deactivated):
Ideenmodellierer
parents: 38
diff changeset
241 else
5149cd644fbc Reimplemented charger status generation (deactivated):
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parents: 38
diff changeset
242 {
5149cd644fbc Reimplemented charger status generation (deactivated):
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diff changeset
243 if(batteryChargerState == Charger_Finished) /* voltage dropped below the hysteresis again => charging restarted */
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244 {
5149cd644fbc Reimplemented charger status generation (deactivated):
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245 batteryChargerState = Charger_Active;
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246 notifyChargeComplete = 0;
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diff changeset
247 }
5149cd644fbc Reimplemented charger status generation (deactivated):
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diff changeset
248 }
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diff changeset
249
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250 /* restore high impedance to be able to detect disconnection */
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251 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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diff changeset
252 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
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253 GPIO_InitStructure.Pull = GPIO_NOPULL;
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diff changeset
254 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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diff changeset
255 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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256 break;
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257
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diff changeset
258 default: /* wait for disconnection */
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diff changeset
259 break;
5149cd644fbc Reimplemented charger status generation (deactivated):
Ideenmodellierer
parents: 38
diff changeset
260 }
5149cd644fbc Reimplemented charger status generation (deactivated):
Ideenmodellierer
parents: 38
diff changeset
261 }
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parents: 38
diff changeset
262 #else
38
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263 /* on disconnection or while disconnected */
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264 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN))
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265 {
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266 if(battery_charger_counter)
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267 {
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268 battery_charger_counter--;
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269 global.dataSendToMaster.chargeStatus = CHARGER_lostConnection;
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270 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection;
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271 }
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272 /* max count down to 127+5 or 127+20 */
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273 if((battery_i_charge_status == 255) && battery_charger_counter < 127)
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274 {
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275 // battery_gas_gauge_set_charge_full();
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276 // scheduleUpdateDeviceDataChargerFull();
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277 battery_charger_counter = 0;
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278 }
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heinrichsweikamp
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279
5f11787b4f42 include in ostc4 repository
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280 if(battery_charger_counter == 0)
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281 {
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diff changeset
282 battery_i_charge_status = 0;
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283 global.dataSendToMaster.chargeStatus = CHARGER_off;
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284 global.deviceDataSendToMaster.chargeStatus = CHARGER_off;
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285
5f11787b4f42 include in ostc4 repository
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286 }
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heinrichsweikamp
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287 return;
5f11787b4f42 include in ostc4 repository
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288 }
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289
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290 /* connected */
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291
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diff changeset
292 /* wait for disconnection to write and reset */
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293 if(battery_i_charge_status == 255)
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294 {
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295 global.dataSendToMaster.chargeStatus = CHARGER_complete;
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296 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete;
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297
643
5149cd644fbc Reimplemented charger status generation (deactivated):
Ideenmodellierer
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298 if(((cycleTimeBase > 1) && (battery_charger_counter < 127+5)) || (battery_charger_counter < 127+20))
38
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299 battery_charger_counter++;
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300 return;
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diff changeset
301 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
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302
5f11787b4f42 include in ostc4 repository
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diff changeset
303 if(battery_charger_counter == 0)
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304 battery_i_charge_status = 1;
5f11787b4f42 include in ostc4 repository
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305
5f11787b4f42 include in ostc4 repository
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306 /* charger is connected and didn't signal full yet */
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307 global.dataSendToMaster.chargeStatus = CHARGER_running;
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308 global.deviceDataSendToMaster.chargeStatus = CHARGER_running;
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309
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310 GPIO_InitTypeDef GPIO_InitStructure;
643
5149cd644fbc Reimplemented charger status generation (deactivated):
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diff changeset
311 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
5149cd644fbc Reimplemented charger status generation (deactivated):
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diff changeset
312 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
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diff changeset
313 GPIO_InitStructure.Pull = GPIO_NOPULL;
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314 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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diff changeset
315 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
38
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316 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET);
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317 HAL_Delay(1);
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318
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319
5f11787b4f42 include in ostc4 repository
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320 if(battery_charger_counter < 120)
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321 {
643
5149cd644fbc Reimplemented charger status generation (deactivated):
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322 if(cycleTimeBase == 1)
38
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323 battery_charger_counter++;
5f11787b4f42 include in ostc4 repository
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324 else
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325 {
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326 battery_charger_counter += 30;
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327 if(battery_charger_counter >= 127)
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328 battery_charger_counter = 126;
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329 }
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330 }
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heinrichsweikamp
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331 else
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332 if(battery_charger_counter < 127)
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333 {
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334 battery_charger_counter = 127;
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335 if(battery_i_charge_status < 2)
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336 {
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337 battery_i_charge_status = 2;
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338 scheduleUpdateDeviceDataChargerCharging();
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339 }
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340 }
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341
5f11787b4f42 include in ostc4 repository
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342 if(battery_charger_counter >= 127)
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343 {
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344 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN) || (get_voltage() >= 4.1f))
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345 {
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346 battery_charger_counter++;
643
5149cd644fbc Reimplemented charger status generation (deactivated):
Ideenmodellierer
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diff changeset
347 if(((cycleTimeBase > 1) && (battery_charger_counter > 127+5)) || (battery_charger_counter > 127+20))
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348 {
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349 battery_charger_counter = 127;
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350 if(get_voltage() >= 4.1f)
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351 {
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352 battery_i_charge_status = 255;
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353 battery_gas_gauge_set_charge_full();
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354 scheduleUpdateDeviceDataChargerFull();
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355 }
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356 }
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357 }
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358 else
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359 battery_charger_counter = 127;
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360 }
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361
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362 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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363 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
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364 GPIO_InitStructure.Pull = GPIO_NOPULL;
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365 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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366 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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5149cd644fbc Reimplemented charger status generation (deactivated):
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367 #endif
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368 }
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369
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370 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/