annotate Small_CPU/Src/batteryCharger.c @ 471:73da921869d9 fix-bat-2

bugfix: implement battery charge percentage in dive header This commit is (much) less trivial than the related 919e5cb51c92. First, rename the CCRmode attribute (corresponding to byte Ox59) of the SLogbookHeaderOSTC3. This byte (according to the hwOS interface document) does not contain any CCR related value, but it contains "battery information". Already since 2017, this byte is used from libdivecomputer to interface the charge percentage. So, its renamed from CCRmode to batteryCharge, to reflect its true purpose. Now, simply add a batteryCharge attribute to the SLogbookHeader (and see below why that is possible, without breaking things). The remaining changes are trivial to implement battery charge percentage in dive header. Caveat: do not get confused by the exact role of the individual logbook header types. SLogbookHeaderOSTC3 is the formal type of the logbook format that the OSTC4 produces. This format is supposed to identical to the format, as is used in hwOS for the series of small OSTCs. Only some values of attributes are different. For example, the OSTC4 supports VPM, so byte 0x79 (deco model used for this dive) also has a value for VPM. But the SLogbookHeader type, despite its name and structure, is *not* a true logbook header, as it includes attributes that are not available in the SLogbookHeaderOSTC3 formal header type. Signed-off-by: Jan Mulder <jan@jlmulder.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 22 Apr 2020 13:08:57 +0200
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children 5149cd644fbc
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38
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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 #define CHARGE_IN_PIN GPIO_PIN_2
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38 #define CHARGE_IN_GPIO_PORT GPIOC
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39 #define CHARGE_IN_GPIO_ENABLE() __GPIOC_CLK_ENABLE()
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40
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41 #define CHARGE_OUT_PIN GPIO_PIN_1
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42 #define CHARGE_OUT_GPIO_PORT GPIOC
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43 #define CHARGE_OUT_GPIO_ENABLE() __GPIOC_CLK_ENABLE()
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44
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45
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46 uint8_t battery_i_charge_status = 0;
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47 uint8_t battery_charger_counter = 0;
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48
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49 /* can be 0, 1 or 255
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50 * 0 is disconnected
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51 * 1 is charging
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52 * 255 is full
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53 */
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54 uint8_t get_charge_status(void)
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55 {
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56 return battery_i_charge_status;
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57 }
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58
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59 void init_battery_charger_status(void)
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60 {
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61 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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62 return;
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63 #endif
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64
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65 CHARGE_IN_GPIO_ENABLE();
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66 CHARGE_OUT_GPIO_ENABLE();
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67
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68 ReInit_battery_charger_status_pins();
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69 }
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70
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71 void ReInit_battery_charger_status_pins(void)
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72 {
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73 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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74 return;
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75 #endif
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76
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77 GPIO_InitTypeDef GPIO_InitStructure;
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78
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79 GPIO_InitStructure.Pin = CHARGE_IN_PIN;
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80 GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
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81 GPIO_InitStructure.Pull = GPIO_NOPULL;
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82 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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83 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure);
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84
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85 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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86 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
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87 GPIO_InitStructure.Pull = GPIO_NOPULL;
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88 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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89 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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90 }
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91
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92
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93 void DeInit_battery_charger_status_pins(void)
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94 {
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95 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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96 return;
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97 #endif
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98 GPIO_InitTypeDef GPIO_InitStructure;
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99
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100
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101 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
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102 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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103 GPIO_InitStructure.Pull = GPIO_NOPULL;
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104
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105 GPIO_InitStructure.Pin = CHARGE_IN_PIN;
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106 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure);
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107
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108 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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109 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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110 }
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111
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112 /* static counter is used to avoid multiple counts of charge startings
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113 and after that it is used, starting at 127 to count for the charge full signal
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114
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115 there a short disconnections with the QI charger
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116 therefore the battery_charger_counter has a countdown instead of = 0.
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117
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118 battery_gas_gauge_set_charge_full and scheduleUpdateDeviceDataChargerFull are
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119 set after disconnection as the charging process continues as long as not disconnected
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120 to prevent the short disconnections the battery_charger_counter is used too including
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121 upcounting again while battery_i_charge_status == 255 and the connection is established
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122
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123 */
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124
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125 void battery_charger_get_status_and_contral_battery_gas_gauge(uint8_t inSleepModeLessCounts)
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126 {
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127 #ifdef OSTC_ON_DISCOVERY_HARDWARE
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128 return;
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129 #endif
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130
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131 /* on disconnection or while disconnected */
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132 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN))
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133 {
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134 if(battery_charger_counter)
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135 {
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136 battery_charger_counter--;
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137 global.dataSendToMaster.chargeStatus = CHARGER_lostConnection;
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138 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection;
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139 }
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140 /* max count down to 127+5 or 127+20 */
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141 if((battery_i_charge_status == 255) && battery_charger_counter < 127)
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142 {
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143 // battery_gas_gauge_set_charge_full();
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144 // scheduleUpdateDeviceDataChargerFull();
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145 battery_charger_counter = 0;
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146 }
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147
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148 if(battery_charger_counter == 0)
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149 {
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150 battery_i_charge_status = 0;
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151 global.dataSendToMaster.chargeStatus = CHARGER_off;
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152 global.deviceDataSendToMaster.chargeStatus = CHARGER_off;
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153
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154 }
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155 return;
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156 }
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157
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158 /* connected */
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159
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160 /* wait for disconnection to write and reset */
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161 if(battery_i_charge_status == 255)
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162 {
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163 global.dataSendToMaster.chargeStatus = CHARGER_complete;
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164 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete;
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165
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166 if((inSleepModeLessCounts && (battery_charger_counter < 127+5)) || (battery_charger_counter < 127+20))
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167 battery_charger_counter++;
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168 return;
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169 }
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170
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171 if(battery_charger_counter == 0)
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172 battery_i_charge_status = 1;
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173
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174 /* charger is connected and didn't signal full yet */
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175 global.dataSendToMaster.chargeStatus = CHARGER_running;
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176 global.deviceDataSendToMaster.chargeStatus = CHARGER_running;
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177
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178 GPIO_InitTypeDef GPIO_InitStructure;
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179 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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180 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
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181 GPIO_InitStructure.Pull = GPIO_NOPULL;
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182 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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183 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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184 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET);
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185 HAL_Delay(1);
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186
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187
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188 if(battery_charger_counter < 120)
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189 {
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190 if(!inSleepModeLessCounts)
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191 battery_charger_counter++;
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192 else
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193 {
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194 battery_charger_counter += 30;
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195 if(battery_charger_counter >= 127)
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196 battery_charger_counter = 126;
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197 }
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198 }
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199 else
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200 if(battery_charger_counter < 127)
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201 {
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202 battery_charger_counter = 127;
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203 if(battery_i_charge_status < 2)
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204 {
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205 battery_i_charge_status = 2;
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206 scheduleUpdateDeviceDataChargerCharging();
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207 }
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208 }
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209
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210 if(battery_charger_counter >= 127)
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211 {
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212 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN) || (get_voltage() >= 4.1f))
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213 {
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214 battery_charger_counter++;
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215 if((inSleepModeLessCounts && (battery_charger_counter > 127+5)) || (battery_charger_counter > 127+20))
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216 {
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217 battery_charger_counter = 127;
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218 if(get_voltage() >= 4.1f)
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219 {
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220 battery_i_charge_status = 255;
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221 battery_gas_gauge_set_charge_full();
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222 scheduleUpdateDeviceDataChargerFull();
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223 }
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224 }
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225 }
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226 else
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227 battery_charger_counter = 127;
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228 }
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229
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230 GPIO_InitStructure.Pin = CHARGE_OUT_PIN;
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231 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG;
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232 GPIO_InitStructure.Pull = GPIO_NOPULL;
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233 GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
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234 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure);
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235 }
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236
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237 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/