+++ /dev/null
-/* This file has been prepared for Doxygen automatic documentation generation.*/\r
-/*! \file *********************************************************************\r
- *\r
- * \brief\r
- * Charge state function for Li-Ion batteries\r
- *\r
- * Contains the charge state function, in which the Li-Ion charging\r
- * algorithm is, plus the associated functions.\r
- *\r
- * \par Application note:\r
- * AVR458: Charging Li-Ion Batteries with BC100\r
- *\r
- * \par Documentation\r
- * For comprehensive code documentation, supported compilers, compiler \r
- * settings and supported devices see readme.html\r
- *\r
- * \author\r
- * Atmel Corporation: http://www.atmel.com \n\r
- * Support email: avr@atmel.com\r
- *\r
- * \r
- * $Name$\r
- * $Revision: 2261 $\r
- * $RCSfile$\r
- * $URL: http://svn.norway.atmel.com/AppsAVR8/avr458_Charging_Li-Ion_Batteries_with_BC100/tag/20070904_release_1.0/code/IAR/LIIONcharge.c $\r
- * $Date: 2007-08-10 09:28:35 +0200 (fr, 10 aug 2007) $\n\r
- ******************************************************************************/\r
-\r
-#include <avr/io.h>\r
-\r
-#include "enums.h"\r
-#include "structs.h"\r
-\r
-#include "battery.h"\r
-#include "charge.h"\r
-#include "chargefunc.h"\r
-#include "main.h"\r
-#include "menu.h"\r
-#include "LIIONspecs.h"\r
-#include "PWM.h"\r
-#include "time.h"\r
-\r
-#ifndef LIION\r
-#error LIION not defined in main.h!\r
-#endif // LIION\r
-\r
-\r
-//******************************************************************************\r
-// Functions\r
-//******************************************************************************\r
-/*! \brief Controls the charging.\r
- *\r
- * This function contains the charging algorithm itself, divided into stages.\n\r
- * For each stage the PWM may be started/stopped, and the timer, \r
- * halt-requirements and charge parameters may be set.\n\r
- * The charging functions return whatever state is next, and as long as no\r
- * errors occur this is the next charging stage.\r
- *\r
- * \note If more stages are needed simply define more states in menu.h, include\r
- * them in \ref menu_state[] in menu.c, then add the cases to this function.\r
- *\r
- * \note This algorithm is for Li-Ion batteries.\r
- */\r
-unsigned char Charge(unsigned char inp)\r
-{\r
- unsigned char NextState;\r
-\r
- switch (CurrentState) {\r
- case ST_PREQUAL: // First step is prequalification.\r
- \r
- // Charge with the defined prequalifiction-current, and if no errors\r
- // occur return ST_CCURRENT as the next state.\r
- ChargeParameters.Current = BAT_CURRENT_PREQUAL;\r
- ChargeParameters.NextState = ST_CCURRENT;\r
- \r
- // We want charging to halt if voltage reaches a limit or time runs out.\r
- // In case of timeout the battery will be flagged as exhausted, and an\r
- // error will be flagged.\r
- HaltParameters.HaltFlags = (HALT_VOLTAGE_MAX | HALT_TIME | \r
- HALT_FLAG_EXHAUSTION);\r
- \r
- // Set the maximum temperature and charge voltage limit.\r
- HaltParameters.TemperatureMax = BAT_TEMPERATURE_MAX;\r
- HaltParameters.TemperatureMin = BAT_TEMPERATURE_MIN;\r
- HaltParameters.VoltageMax = BAT_VOLTAGE_PREQUAL;\r
-\r
- // Start PWM output and charging timer first.\r
- PWM_Start();\r
- Time_Set(TIMER_CHG, BAT_TIME_PREQUAL, 0, 0);\r
-\r
- // Call the constant current charging-function.\r
- // If all goes well, we will get ST_CCURRENT in return.\r
- NextState = ConstantCurrent();\r
- break;\r
- \r
-\r
- case ST_CCURRENT: // Second step is constant current charging.\r
- \r
- // Set charging timer to the battery's maximum charge time.\r
- Time_Set(TIMER_CHG,BattData.MaxTime,0,0);\r
-\r
- // Charge at the battery's maximum current, go to ST_CVOLTAGE next.\r
- ChargeParameters.Current = BattData.MaxCurrent;\r
- ChargeParameters.NextState = ST_CVOLTAGE;\r
-\r
-\r
- // Charge until the defined BatChargeVoltage is reached.\r
- HaltParameters.VoltageMax = BAT_VOLTAGE_MAX;\r
- \r
- // Start charging using constant current.\r
- NextState = ConstantCurrent();\r
- break;\r
-\r
-\r
- case ST_CVOLTAGE: // Third step is constant voltage charging.\r
- \r
- // Charge with the defined charge-voltage, go to ST_ENDCHARGE next.\r
- ChargeParameters.Voltage = BAT_VOLTAGE_MAX;\r
- ChargeParameters.NextState = ST_ENDCHARGE;\r
- \r
- // We want charging to halt if temperature rises too high, if current\r
- // sinks below limit, or time runs out. Also, flag error if temperature\r
- // limit is reached. Timeout doesn't mean anything is wrong at this point.\r
- HaltParameters.HaltFlags = (HALT_CURRENT_MIN | HALT_TIME);\r
- \r
- HaltParameters.CurrentMin = BattData.MinCurrent;\r
- \r
- // Start charging using constant voltage. We will continue on the \r
- // timer started in ST_CCURRENT.\r
- NextState = ConstantVoltage(); \r
- break;\r
-\r
-\r
- case ST_ENDCHARGE: // Charging is done!\r
-\r
- PWM_Stop();\r
- BattData.Charged = TRUE;\r
- \r
- // If the other battery is enabled go to ST_BATCON, otherwise\r
- // go to ST_SLEEP.\r
- if (eeprom_read_byte(&BattControl[(BattActive+1)%2]) & BIT_BATTERY_ENABLED) {\r
- NextState = ST_BATCON;\r
- } else {\r
- NextState = ST_SLEEP;\r
- } \r
- break;\r
-\r
-\r
- default: // Shouldn't end up here. Reinitialize for safety.\r
- NextState = ST_INIT;\r
- break;\r
- }\r
-\r
- // Return the next state.\r
- return(NextState);\r
-}\r
projects / avr_bc100.git / blobdiff