--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Small_CPU/Src/batteryCharger.c	Sat Apr 28 11:52:34 2018 +0200
@@ -0,0 +1,237 @@
+/**
+  ******************************************************************************
+  * @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>&copy; COPYRIGHT(c) 2015 heinrichs weikamp</center></h2>
+  *
+  ******************************************************************************
+  */ 
+/* Includes ------------------------------------------------------------------*/
+#include "batteryCharger.h"
+#include "batteryGasGauge.h"
+#include "stm32f4xx_hal.h"
+#include "scheduler.h"
+
+
+#define CHARGE_IN_PIN							GPIO_PIN_2
+#define CHARGE_IN_GPIO_PORT				GPIOC
+#define CHARGE_IN_GPIO_ENABLE()		__GPIOC_CLK_ENABLE()
+
+#define CHARGE_OUT_PIN						GPIO_PIN_1
+#define CHARGE_OUT_GPIO_PORT			GPIOC
+#define CHARGE_OUT_GPIO_ENABLE()	__GPIOC_CLK_ENABLE()
+
+
+uint8_t battery_i_charge_status = 0;
+uint8_t battery_charger_counter = 0;
+
+/* 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 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 inSleepModeLessCounts)
+{
+	#ifdef OSTC_ON_DISCOVERY_HARDWARE
+		return;
+	#endif
+	
+	/* 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((inSleepModeLessCounts && (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(!inSleepModeLessCounts)
+			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((inSleepModeLessCounts && (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); 
+}
+
+/************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/