LNSC-2420-Firmware/src/config.h

#ifndef CONFIG_H
#define CONFIG_H

/* Thresholds for charging control */

/* Battery regulation corridor width (in mV). */
#define U_BAT_REGULATION_CORRIDOR 100

/* Initial charge battery voltage threshold (in mV). */
#define U_BAT_INITIAL_FULL    28600       // stop charging if battery voltage reaches this threshold

/* Cancel initial charge voltage hold below this battery voltage (in mV). */
#define U_BAT_INITIAL_HOLD_CANCEL    28000

/* Transition to floating voltage levels after this time (in ms). */
#define INITIAL_CHARGE_HOLD_TIME    3600000

/* Duration of the transistion from initial charging to float (in ms). */
#define INITIAL_TO_FLOAT_TRANSITION_TIME  600000

/* Float charge battery voltage threshold (in mV). */
#define U_BAT_FLOAT_FULL    27600       // stop charging if battery voltage reaches this threshold

/* Minimum voltage difference to U_bat that the solar panels must produce
 * before charging is resumed after it was switched off (in mV). */
#define SLEEP_SOLAR_EXCESS_VOLTAGE    1000

/* Minimum charge current required before charging is stopped to save power at
 * the charge pump (in mA). */
#define SLEEP_SOLAR_CURRENT    1

/* Delay between state change and sleep state check (in ms). */
#define SLEEP_STATE_DELAY      100

/* Delay between charging switch state change and sleep state check(in ms). */
#define SLEEP_SWITCH_DELAY    1000

/* Maximum allowed microcontroller temperature (in units of 0.1 °C). If this
 * temperature is exceeded, charging is stopped. The load is kept on. Do not
 * set this too high as the heat has to propagate from the power MOSFETs. */
#define INTERNAL_TEMPERATURE_LIMIT    500

/* Resume operation below this temperature (in units of 0.1 °C). */
#define INTERNAL_TEMPERATURE_RECOVERY 450


/* Thresholds for load control */

/* Voltage above which the load is turned on (in mV). */
#define U_BAT_LOAD_ON     27000
/* Voltage below which the load is turned off (in mV). */
#define U_BAT_LOAD_OFF    24000

/* Current at which the overload protection triggers (in mA). */
#define LOAD_CURRENT_LIMIT_MA    10000

/* Inrush tolerance time (in ms). Overload protection is not enforced for this
 * time after load power-on. */
#define LOAD_CURRENT_INRUSH_TIME    10

/* Minimum voltage that the charge pump must produce above U_bat before any
 * power FET is switched on (in mV). */
#define MIN_CHARGE_PUMP_EXCESS_VOLTAGE    10000

/* The minimum time the load must be off before it can be switched on again (in ms). */
#define LOAD_ON_DELAY    10000


/* Measurement Averaging:
 * Alpha is specified in units of 1/1000. 1000 means that only the latest
 * value is relevant, 0 means that the measurement has no influence. The latter
 * is useless.
 *
 * The formula to calculate the next averaged value avg from a measurement meas is:
 * avg[k] = meas * (alpha/1000) + avg[k-1] * (1 - alpha/1000)
 *
 * For overload protection (battery voltage, load current), the latest values
 * are always used.
 * */

/* Averaging factor for load current. */
#define AVG_ALPHA_I_SOLAR          10
#define AVG_ALPHA_I_LOAD           10
#define AVG_ALPHA_U_BAT           100
#define AVG_ALPHA_U_SW            100
#define AVG_ALPHA_U_SOLAR         100
#define AVG_ALPHA_TEMP             10


/* Generic configuration */

/* Time (in ms) to stay active in idle state before entering deep sleep. */
#define DEEPSLEEP_DELAY   1000

/* Deep sleep duration (in seconds). */
#define DEEPSLEEP_DURATION   10

#endif // CONFIG_H