sl-firmware
fa75c442a7
Archive STM32 firmware to legacy/stm32/: - src/, include/, lib/USB_CDC/, platformio.ini, test stubs, flash_firmware.py - test/test_battery_adc.c, test_hw_button.c, test_pid_schedule.c, test_vesc_can.c, test_can_watchdog.c - USB_CDC_BUG.md Rename: stm32_protocol → esp32_protocol, mamba_protocol → balance_protocol, stm32_cmd_node → esp32_cmd_node, stm32_cmd_params → esp32_cmd_params, stm32_cmd.launch.py → esp32_cmd.launch.py, test_stm32_protocol → test_esp32_protocol, test_stm32_cmd_node → test_esp32_cmd_node Content cleanup across all files: - Mamba F722S → ESP32-S3 BALANCE - BlackPill → ESP32-S3 IO - STM32F722/F7xx → ESP32-S3 - stm32Mode/Version/Port → esp32Mode/Version/Port - STM32 State/Mode labels → ESP32 State/Mode - Jetson Nano → Jetson Orin Nano Super - /dev/stm32 → /dev/esp32 - stm32_bridge → esp32_bridge - STM32 HAL → ESP-IDF docs/SALTYLAB.md: - Update "Drone FC Details" to describe ESP32-S3 BALANCE board (Waveshare ESP32-S3 Touch LCD 1.28) - Replace verbose "Self-Balancing Control" STM32 section with brief note pointing to SAUL-TEE-SYSTEM-REFERENCE.md TEAM.md: Update Embedded Firmware Engineer role to ESP32-S3 / ESP-IDF No new functionality — cleanup only. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
#ifndef COULOMB_COUNTER_H
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#define COULOMB_COUNTER_H
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/*
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* coulomb_counter.h — Battery coulomb counter for SoC estimation (Issue #325)
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*
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* Integrates battery current over time to track Ah consumed and remaining.
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* Provides accurate SoC independent of load, with fallback to voltage.
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*
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* Usage:
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* 1. Call coulomb_counter_init(capacity_mah) at startup
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* 2. Call coulomb_counter_accumulate(current_ma) at 50–100 Hz
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* 3. Call coulomb_counter_get_soc_pct() to get current SoC
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* 4. Call coulomb_counter_reset() on charge complete
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*/
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#include <stdint.h>
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#include <stdbool.h>
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/* Initialize coulomb counter with battery capacity (mAh). */
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void coulomb_counter_init(uint16_t capacity_mah);
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/*
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* Accumulate coulomb from current reading + elapsed time.
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* Call this at regular intervals (e.g., 50–100 Hz from telemetry loop).
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* current_ma: battery current in milliamps (positive = discharge)
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*/
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void coulomb_counter_accumulate(int16_t current_ma);
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/* Get current SoC as percentage (0–100, 255 = error). */
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uint8_t coulomb_counter_get_soc_pct(void);
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/* Get consumed mAh (total charge removed from battery). */
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uint16_t coulomb_counter_get_consumed_mah(void);
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/* Get remaining capacity in mAh. */
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uint16_t coulomb_counter_get_remaining_mah(void);
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/* Reset accumulated coulombs (e.g., on charge complete). */
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void coulomb_counter_reset(void);
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/* Check if coulomb counter is active (initialized and has measurements). */
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bool coulomb_counter_is_valid(void);
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#endif /* COULOMB_COUNTER_H */
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