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https://github.com/dalathegreat/Battery-Emulator.git
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Various additions, still WIP
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7 changed files with 228 additions and 112 deletions
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@ -2,157 +2,254 @@
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#include "../../../USER_SETTINGS.h"
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#include "../config.h"
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#include "timer.h"
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typedef enum {
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EVENT_STATE_INIT = 0,
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EVENT_STATE_INACTIVE,
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EVENT_STATE_ACTIVE,
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EVENT_STATE_ACTIVE_LATCHED
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} EVENT_STATE_TYPE;
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typedef struct {
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uint32_t timestamp; // Time in seconds since startup when the event occurred
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uint8_t data; // Custom data passed when setting the event, for example cell number for under voltage
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uint8_t occurences; // Number of occurrences since startup
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uint8_t led_color; // Weirdly indented comment
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uint32_t timestamp; // Time in seconds since startup when the event occurred
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uint8_t data; // Custom data passed when setting the event, for example cell number for under voltage
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uint8_t occurences; // Number of occurrences since startup
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uint8_t led_color; // LED indication
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EVENT_STATE_TYPE state; // Event state
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} EVENTS_STRUCT_TYPE;
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static EVENTS_STRUCT_TYPE entries[EVENT_NOF_EVENTS];
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static unsigned long previous_millis = 0;
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static uint32_t time_seconds = 0;
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static uint8_t total_led_color = GREEN;
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static char event_message[256];
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typedef struct {
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EVENTS_STRUCT_TYPE entries[EVENT_NOF_EVENTS];
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uint32_t time_seconds;
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char message[256];
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MyTimer second_timer;
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uint8_t nof_yellow_events;
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uint8_t nof_blue_events;
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uint8_t nof_red_events;
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} EVENT_TYPE;
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/* Local variables */
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static EVENT_TYPE events;
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/* Local function prototypes */
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static void update_event_time(void);
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static void set_event_message(EVENTS_ENUM_TYPE event);
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static void update_led_color(EVENTS_ENUM_TYPE event);
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static void set_message(EVENTS_ENUM_TYPE event);
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static void update_led_color(void);
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static void set_event(EVENTS_ENUM_TYPE event, uint8_t data, bool latched);
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static void update_event_numbers(void);
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static void update_bms_status(void);
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/* Exported functions */
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/* Main execution function, should handle various continuous functionality */
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void run_event_handling(void) {
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update_event_time();
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}
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/* Initialization function */
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void init_events(void) {
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for (uint8_t i = 0; i < EVENT_NOF_EVENTS; i++) {
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entries[i].timestamp = 0;
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entries[i].data = 0;
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entries[i].occurences = 0;
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entries[i].led_color = RED; // Most events are RED
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events.entries[i].timestamp = 0;
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events.entries[i].data = 0;
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events.entries[i].occurences = 0;
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events.entries[i].led_color = RED; // Most events are RED
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events.entries[i].state = EVENT_STATE_INACTIVE;
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}
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// YELLOW events below
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entries[EVENT_12V_LOW].led_color = YELLOW;
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entries[EVENT_CAN_WARNING].led_color = YELLOW;
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entries[EVENT_CELL_DEVIATION_HIGH].led_color = YELLOW;
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entries[EVENT_KWH_PLAUSIBILITY_ERROR].led_color = YELLOW;
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events.entries[EVENT_12V_LOW].led_color = YELLOW;
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events.entries[EVENT_CAN_WARNING].led_color = YELLOW;
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events.entries[EVENT_CELL_DEVIATION_HIGH].led_color = YELLOW;
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events.entries[EVENT_KWH_PLAUSIBILITY_ERROR].led_color = YELLOW;
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// BLUE...
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entries[EVENT_OTA_UPDATE].led_color = BLUE;
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events.entries[EVENT_OTA_UPDATE].led_color = BLUE;
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events.second_timer.interval = 1000;
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events.nof_blue_events = 0;
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events.nof_red_events = 0;
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events.nof_yellow_events = 0;
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}
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void set_event(EVENTS_ENUM_TYPE event, uint8_t data) {
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if (event >= EVENT_NOF_EVENTS) {
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event = EVENT_UNKNOWN_EVENT_SET;
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}
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entries[event].timestamp = time_seconds;
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entries[event].data = data;
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entries[event].occurences++;
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update_led_color(event);
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if (total_led_color == RED) {
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bms_status = FAULT;
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} else if (total_led_color) {
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bms_status = UPDATING;
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}
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set_event_message(event);
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#ifdef DEBUG_VIA_USB
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Serial.println(event_message);
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#endif
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set_event(event, data, false);
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}
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uint8_t get_event_ledcolor(void) {
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return total_led_color;
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void set_event_latched(EVENTS_ENUM_TYPE event, uint8_t data) {
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set_event(event, data, true);
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}
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void clear_event(EVENTS_ENUM_TYPE event) {
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if (events.entries[event].state == EVENT_STATE_ACTIVE) {
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events.entries[event].state = EVENT_STATE_INACTIVE;
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update_event_numbers();
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update_led_color();
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update_bms_status();
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}
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}
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/* Local functions */
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static void update_event_time(void) {
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unsigned long new_millis = millis();
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if (new_millis - previous_millis >= 1000) {
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time_seconds++;
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previous_millis = new_millis;
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static void set_event(EVENTS_ENUM_TYPE event, uint8_t data, bool latched) {
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// Just some defensive stuff if someone sets an unknown event
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if (event >= EVENT_NOF_EVENTS) {
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event = EVENT_UNKNOWN_EVENT_SET;
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}
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// If the event is already set, no reason to continue
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if ((events.entries[event].state == EVENT_STATE_ACTIVE) ||
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(events.entries[event].state == EVENT_STATE_ACTIVE_LATCHED)) {
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return;
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}
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// We should set the event, update event info
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events.entries[event].timestamp = events.time_seconds;
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events.entries[event].data = data;
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events.entries[event].occurences++;
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// Check if the event is latching
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events.entries[event].state = latched ? EVENT_STATE_ACTIVE_LATCHED : EVENT_STATE_ACTIVE;
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update_event_numbers();
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update_led_color();
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update_bms_status();
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// Set the associated event message, even if debug is disabled
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set_message(event);
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#ifdef DEBUG_VIA_USB
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Serial.println(events.message);
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#endif
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}
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static void update_bms_status(void) {
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if (events.nof_red_events > 0) {
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bms_status = FAULT;
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} else if (events.nof_blue_events > 0) {
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bms_status = UPDATING;
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} else if (events.nof_yellow_events > 0) {
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// No bms_status update
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}
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}
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static void update_led_color(EVENTS_ENUM_TYPE event) {
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total_led_color = max(total_led_color, entries[event].led_color);
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static void update_event_numbers(void) {
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events.nof_red_events = 0;
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events.nof_blue_events = 0;
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events.nof_yellow_events = 0;
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for (uint8_t i = 0u; i < EVENT_NOF_EVENTS; i++) {
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if ((events.entries[i].state == EVENT_STATE_ACTIVE) || (events.entries[i].state == EVENT_STATE_ACTIVE_LATCHED)) {
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switch (events.entries[i].led_color) {
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case GREEN:
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// Just informative
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break;
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case YELLOW:
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events.nof_yellow_events++;
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break;
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case BLUE:
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events.nof_blue_events++;
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break;
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case RED:
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events.nof_red_events++;
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break;
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default:
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break;
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}
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}
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}
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}
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static void set_event_message(EVENTS_ENUM_TYPE event) {
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static void update_event_time(void) {
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unsigned long new_millis = millis();
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if (events.second_timer.elapsed() == true) {
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events.time_seconds++;
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}
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}
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static void update_led_color(void) {
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if (events.nof_red_events > 0) {
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LEDcolor = RED;
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} else if (events.nof_blue_events > 0) {
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LEDcolor = BLUE;
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} else if (events.nof_yellow_events > 0) {
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LEDcolor = YELLOW;
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} else {
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LEDcolor = GREEN;
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}
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// events.total_led_color = max(events.total_led_color, events.entries[event].led_color);
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}
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static void set_message(EVENTS_ENUM_TYPE event) {
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switch (event) {
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case EVENT_CAN_FAILURE:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"No CAN communication detected for 60s. Shutting down battery control.");
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break;
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case EVENT_CAN_WARNING:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: High amount of corrupted CAN messages detected. Check CAN wire shielding!");
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break;
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case EVENT_WATER_INGRESS:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"Water leakage inside battery detected. Operation halted. Inspect battery!");
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break;
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case EVENT_12V_LOW:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"12V battery source below required voltage to safely close contactors. Inspect the supply/battery!");
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break;
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case EVENT_SOC_PLAUSIBILITY_ERROR:
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snprintf(event_message, sizeof(event_message), "ERROR: SOC reported by battery not plausible. Restart battery!");
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snprintf(events.message, sizeof(events.message),
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"ERROR: SOC reported by battery not plausible. Restart battery!");
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break;
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case EVENT_KWH_PLAUSIBILITY_ERROR:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"Warning: kWh remaining reported by battery not plausible. Battery needs cycling.");
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break;
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case EVENT_BATTERY_CHG_STOP_REQ:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: Battery raised caution indicator AND requested charge stop. Inspect battery status!");
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break;
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case EVENT_BATTERY_DISCHG_STOP_REQ:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: Battery raised caution indicator AND requested discharge stop. Inspect battery status!");
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break;
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case EVENT_BATTERY_CHG_DISCHG_STOP_REQ:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: Battery raised caution indicator AND requested charge/discharge stop. Inspect battery status!");
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break;
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case EVENT_LOW_SOH:
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snprintf(
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event_message, sizeof(event_message),
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events.message, sizeof(events.message),
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"ERROR: State of health critically low. Battery internal resistance too high to continue. Recycle battery.");
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break;
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case EVENT_HVIL_FAILURE:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: Battery interlock loop broken. Check that high voltage connectors are seated. Battery will be "
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"disabled!");
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break;
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case EVENT_INTERNAL_OPEN_FAULT:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: High voltage cable removed while battery running. Opening contactors!");
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break;
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case EVENT_CELL_UNDER_VOLTAGE:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: CELL UNDERVOLTAGE!!! Stopping battery charging and discharging. Inspect battery!");
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break;
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case EVENT_CELL_OVER_VOLTAGE:
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snprintf(event_message, sizeof(event_message),
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snprintf(events.message, sizeof(events.message),
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"ERROR: CELL OVERVOLTAGE!!! Stopping battery charging and discharging. Inspect battery!");
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break;
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case EVENT_CELL_DEVIATION_HIGH:
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snprintf(event_message, sizeof(event_message), "ERROR: HIGH CELL DEVIATION!!! Inspect battery!");
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snprintf(events.message, sizeof(events.message), "ERROR: HIGH CELL DEVIATION!!! Inspect battery!");
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break;
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case EVENT_UNKNOWN_EVENT_SET:
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snprintf(event_message, sizeof(event_message), "An unknown event was set! Review your code!");
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snprintf(events.message, sizeof(events.message), "An unknown event was set! Review your code!");
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break;
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case EVENT_OTA_UPDATE:
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snprintf(event_message, sizeof(event_message), "OTA update started!");
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snprintf(events.message, sizeof(events.message), "OTA update started!");
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break;
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case EVENT_DUMMY:
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snprintf(event_message, sizeof(event_message), "The dummy event was set!"); // Don't change this event message!
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snprintf(events.message, sizeof(events.message), "The dummy event was set!"); // Don't change this event message!
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break;
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default:
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break;
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