Mercurial > public > ostc4
annotate Small_CPU/Src/batteryCharger.c @ 652:f6212495f34f
Allow setpoint starting at 0.4 ppO2:
Some rebreathers (e.g. Sentinel) start with a ppO2 of 0.4 Bar => modified range check to allow this value (was 0.5 before)
| author | Ideenmodellierer |
|---|---|
| date | Mon, 19 Apr 2021 20:34:53 +0200 |
| parents | e58f81cb25a7 |
| children | 1b995079c045 |
| 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 | |
|
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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 |
| 38 | 40 #define CHARGE_IN_PIN GPIO_PIN_2 |
| 41 #define CHARGE_IN_GPIO_PORT GPIOC | |
| 42 #define CHARGE_IN_GPIO_ENABLE() __GPIOC_CLK_ENABLE() | |
| 43 | |
| 44 #define CHARGE_OUT_PIN GPIO_PIN_1 | |
| 45 #define CHARGE_OUT_GPIO_PORT GPIOC | |
| 46 #define CHARGE_OUT_GPIO_ENABLE() __GPIOC_CLK_ENABLE() | |
| 47 | |
| 645 | 48 #define CHARGER_DEBOUNCE_SECONDS (5u) /* 5 seconds used to avoid problems with charger interrupts / disconnections */ |
| 38 | 49 |
| 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 |
| 38 | 65 |
| 66 /* can be 0, 1 or 255 | |
| 67 * 0 is disconnected | |
| 68 * 1 is charging | |
| 69 * 255 is full | |
| 70 */ | |
| 71 uint8_t get_charge_status(void) | |
| 72 { | |
| 73 return battery_i_charge_status; | |
| 74 } | |
| 75 | |
| 76 void init_battery_charger_status(void) | |
| 77 { | |
| 78 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
| 79 return; | |
| 80 #endif | |
| 81 | |
| 82 CHARGE_IN_GPIO_ENABLE(); | |
| 83 CHARGE_OUT_GPIO_ENABLE(); | |
| 84 | |
| 85 ReInit_battery_charger_status_pins(); | |
| 86 } | |
| 87 | |
| 88 void ReInit_battery_charger_status_pins(void) | |
| 89 { | |
| 90 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
| 91 return; | |
| 92 #endif | |
| 93 | |
| 94 GPIO_InitTypeDef GPIO_InitStructure; | |
| 95 | |
| 96 GPIO_InitStructure.Pin = CHARGE_IN_PIN; | |
| 97 GPIO_InitStructure.Mode = GPIO_MODE_INPUT; | |
| 98 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 99 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 100 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); | |
| 101 | |
| 102 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
| 103 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
| 104 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 105 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 106 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
| 107 } | |
| 108 | |
| 109 | |
| 110 void DeInit_battery_charger_status_pins(void) | |
| 111 { | |
| 112 #ifdef OSTC_ON_DISCOVERY_HARDWARE | |
| 113 return; | |
| 114 #endif | |
| 115 GPIO_InitTypeDef GPIO_InitStructure; | |
| 116 | |
| 117 | |
| 118 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
| 119 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 120 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 121 | |
| 122 GPIO_InitStructure.Pin = CHARGE_IN_PIN; | |
| 123 HAL_GPIO_Init(CHARGE_IN_GPIO_PORT, &GPIO_InitStructure); | |
| 124 | |
| 125 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
| 126 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
| 127 } | |
| 128 | |
| 129 /* static counter is used to avoid multiple counts of charge startings | |
| 130 and after that it is used, starting at 127 to count for the charge full signal | |
| 131 | |
| 132 there a short disconnections with the QI charger | |
| 133 therefore the battery_charger_counter has a countdown instead of = 0. | |
| 134 | |
| 135 battery_gas_gauge_set_charge_full and scheduleUpdateDeviceDataChargerFull are | |
| 136 set after disconnection as the charging process continues as long as not disconnected | |
| 137 to prevent the short disconnections the battery_charger_counter is used too including | |
| 138 upcounting again while battery_i_charge_status == 255 and the connection is established | |
| 139 | |
| 140 */ | |
| 141 | |
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142 void battery_charger_get_status_and_contral_battery_gas_gauge(uint8_t cycleTimeBase) |
| 38 | 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 |
| 38 | 148 #ifdef OSTC_ON_DISCOVERY_HARDWARE |
| 149 return; | |
| 150 #endif | |
| 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; |
| 645 | 168 battery_charger_counter = 15; |
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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 { |
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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; |
| 645 | 184 battery_i_charge_status = 0; |
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185 global.dataSendToMaster.chargeStatus = CHARGER_off; |
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186 global.deviceDataSendToMaster.chargeStatus = CHARGER_off; |
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187 |
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188 if(notifyChargeComplete) |
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189 { |
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190 battery_gas_gauge_set_charge_full(); |
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191 scheduleUpdateDeviceDataChargerFull(); |
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192 notifyChargeComplete = 0; |
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193 } |
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194 batteryChargerState = Charger_NotConnected; |
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195 } |
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196 break; |
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197 default: break; |
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198 } |
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199 } |
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200 else |
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201 { |
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202 /* connected */ |
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203 /* wait for disconnection to write and reset */ |
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204 switch(batteryChargerState) |
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205 { |
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206 case Charger_NotConnected: battery_i_charge_status = 1; |
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207 battery_charger_counter = 0; |
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208 batteryChargerState = Charger_WarmUp; |
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209 break; |
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210 case Charger_LostConnection: batteryChargerState = Charger_Active; |
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211 break; |
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212 case Charger_WarmUp: battery_charger_counter += cycleTimeBase; |
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213 if(battery_charger_counter >= CHARGER_DEBOUNCE_SECONDS ) |
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214 { |
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215 battery_i_charge_status = 2; |
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216 scheduleUpdateDeviceDataChargerCharging(); |
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217 batteryChargerState = Charger_Active; |
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218 } |
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219 /* no break */ |
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220 case Charger_Finished: |
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221 case Charger_Active: global.dataSendToMaster.chargeStatus = CHARGER_running; |
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222 global.deviceDataSendToMaster.chargeStatus = CHARGER_running; |
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223 |
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224 /* drive the output pin high to determine the state of the charger */ |
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225 GPIO_InitTypeDef GPIO_InitStructure; |
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226 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; |
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227 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; |
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228 GPIO_InitStructure.Pull = GPIO_NOPULL; |
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229 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; |
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230 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); |
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231 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET); |
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232 HAL_Delay(1); |
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233 |
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234 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) /* high => charger stopped charging */ |
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235 { |
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236 batteryChargerState = Charger_Finished; |
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237 global.dataSendToMaster.chargeStatus = CHARGER_complete; |
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238 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; |
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239 battery_charger_counter = 30; |
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240 notifyChargeComplete = 1; |
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241 } |
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242 else |
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243 { |
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244 if(batteryChargerState == Charger_Finished) /* voltage dropped below the hysteresis again => charging restarted */ |
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245 { |
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246 batteryChargerState = Charger_Active; |
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247 notifyChargeComplete = 0; |
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248 } |
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249 } |
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250 |
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251 /* restore high impedance to be able to detect disconnection */ |
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252 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; |
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253 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; |
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254 GPIO_InitStructure.Pull = GPIO_NOPULL; |
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255 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; |
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256 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); |
| 645 | 257 HAL_Delay(1); |
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258 break; |
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259 |
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260 default: /* wait for disconnection */ |
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261 break; |
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262 } |
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263 } |
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264 #else |
| 38 | 265 /* on disconnection or while disconnected */ |
| 266 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN)) | |
| 267 { | |
| 268 if(battery_charger_counter) | |
| 269 { | |
| 270 battery_charger_counter--; | |
| 271 global.dataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
| 272 global.deviceDataSendToMaster.chargeStatus = CHARGER_lostConnection; | |
| 273 } | |
| 274 /* max count down to 127+5 or 127+20 */ | |
| 275 if((battery_i_charge_status == 255) && battery_charger_counter < 127) | |
| 276 { | |
| 277 // battery_gas_gauge_set_charge_full(); | |
| 278 // scheduleUpdateDeviceDataChargerFull(); | |
| 279 battery_charger_counter = 0; | |
| 280 } | |
| 281 | |
| 282 if(battery_charger_counter == 0) | |
| 283 { | |
| 284 battery_i_charge_status = 0; | |
| 285 global.dataSendToMaster.chargeStatus = CHARGER_off; | |
| 286 global.deviceDataSendToMaster.chargeStatus = CHARGER_off; | |
| 287 | |
| 288 } | |
| 289 return; | |
| 290 } | |
| 291 | |
| 292 /* connected */ | |
| 293 | |
| 294 /* wait for disconnection to write and reset */ | |
| 295 if(battery_i_charge_status == 255) | |
| 296 { | |
| 297 global.dataSendToMaster.chargeStatus = CHARGER_complete; | |
| 298 global.deviceDataSendToMaster.chargeStatus = CHARGER_complete; | |
| 299 | |
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300 if(((cycleTimeBase > 1) && (battery_charger_counter < 127+5)) || (battery_charger_counter < 127+20)) |
| 38 | 301 battery_charger_counter++; |
| 302 return; | |
| 303 } | |
| 304 | |
| 305 if(battery_charger_counter == 0) | |
| 306 battery_i_charge_status = 1; | |
| 307 | |
| 308 /* charger is connected and didn't signal full yet */ | |
| 309 global.dataSendToMaster.chargeStatus = CHARGER_running; | |
| 310 global.deviceDataSendToMaster.chargeStatus = CHARGER_running; | |
| 311 | |
| 312 GPIO_InitTypeDef GPIO_InitStructure; | |
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313 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; |
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314 GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; |
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315 GPIO_InitStructure.Pull = GPIO_NOPULL; |
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316 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; |
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317 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); |
| 38 | 318 HAL_GPIO_WritePin(CHARGE_OUT_GPIO_PORT, CHARGE_OUT_PIN,GPIO_PIN_SET); |
| 319 HAL_Delay(1); | |
| 320 | |
| 321 | |
| 322 if(battery_charger_counter < 120) | |
| 323 { | |
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324 if(cycleTimeBase == 1) |
| 38 | 325 battery_charger_counter++; |
| 326 else | |
| 327 { | |
| 328 battery_charger_counter += 30; | |
| 329 if(battery_charger_counter >= 127) | |
| 330 battery_charger_counter = 126; | |
| 331 } | |
| 332 } | |
| 333 else | |
| 334 if(battery_charger_counter < 127) | |
| 335 { | |
| 336 battery_charger_counter = 127; | |
| 337 if(battery_i_charge_status < 2) | |
| 338 { | |
| 339 battery_i_charge_status = 2; | |
| 340 scheduleUpdateDeviceDataChargerCharging(); | |
| 341 } | |
| 342 } | |
| 343 | |
| 344 if(battery_charger_counter >= 127) | |
| 345 { | |
| 346 if(HAL_GPIO_ReadPin(CHARGE_IN_GPIO_PORT,CHARGE_IN_PIN) || (get_voltage() >= 4.1f)) | |
| 347 { | |
| 348 battery_charger_counter++; | |
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349 if(((cycleTimeBase > 1) && (battery_charger_counter > 127+5)) || (battery_charger_counter > 127+20)) |
| 38 | 350 { |
| 351 battery_charger_counter = 127; | |
| 352 if(get_voltage() >= 4.1f) | |
| 353 { | |
| 354 battery_i_charge_status = 255; | |
| 355 battery_gas_gauge_set_charge_full(); | |
| 356 scheduleUpdateDeviceDataChargerFull(); | |
| 357 } | |
| 358 } | |
| 359 } | |
| 360 else | |
| 361 battery_charger_counter = 127; | |
| 362 } | |
| 363 | |
| 364 GPIO_InitStructure.Pin = CHARGE_OUT_PIN; | |
| 365 GPIO_InitStructure.Mode = GPIO_MODE_ANALOG; | |
| 366 GPIO_InitStructure.Pull = GPIO_NOPULL; | |
| 367 GPIO_InitStructure.Speed = GPIO_SPEED_LOW; | |
| 368 HAL_GPIO_Init(CHARGE_OUT_GPIO_PORT, &GPIO_InitStructure); | |
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369 #endif |
| 38 | 370 } |
| 371 | |
| 372 /************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/ |