sl-firmware
c0d946f858
Some checks failed
social-bot integration tests / Lint (flake8 + pep257) (pull_request) Failing after 5s
social-bot integration tests / Core integration tests (mock sensors, no GPU) (pull_request) Has been skipped
social-bot integration tests / Latency profiling (GPU, Orin) (pull_request) Has been cancelled
Fixed multiple compilation and linker errors: - watchdog.c: Store IWDG handle in struct for proper refresh calls - battery.c: Add missing #include <stdbool.h> - battery.h: Add missing #include <stdbool.h> - servo.c: Remove duplicate ServoState typedef (moved to static struct) - ultrasonic.c: Use static TIM handle shared with ISR, fix HAL macro calls - main.c: Add helper functions for bno055_active, imu_calibrated(), crsf_is_active() - main.c: Fix buzzer_play() call to buzzer_play_melody(MELODY_STARTUP) - i2c1.c/h: Add i2c1_write() and i2c1_read() functions pio run now passes with zero errors. Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#ifndef BATTERY_H
|
||
#define BATTERY_H
|
||
|
||
/*
|
||
* battery.h — Vbat ADC reading for CRSF telemetry (Issue #103)
|
||
*
|
||
* Hardware: ADC3 channel IN11 on PC1 (ADC_BATT 1, Mamba F722).
|
||
* Voltage divider: 10 kΩ / 1 kΩ → 11:1 ratio.
|
||
* Resolution: 12-bit (0–4095), Vref = 3.3 V.
|
||
*
|
||
* Filtered output in millivolts. Reading is averaged over
|
||
* BATTERY_SAMPLES conversions (software oversampling) to reduce noise.
|
||
*/
|
||
|
||
#include <stdint.h>
|
||
#include <stdbool.h>
|
||
|
||
/* Initialise ADC3 for single-channel Vbat reading on PC1. */
|
||
void battery_init(void);
|
||
|
||
/*
|
||
* battery_read_mv() — blocking single-shot read; returns Vbat in mV.
|
||
* Takes ~1 µs (12-bit conversion at 36 MHz APB2 / 8 prescaler = 4.5 MHz ADC clk).
|
||
* Returns 0 if ADC not initialised or conversion times out.
|
||
*/
|
||
uint32_t battery_read_mv(void);
|
||
|
||
/*
|
||
* battery_estimate_pct() — coarse SoC estimate from Vbat (mV).
|
||
* Works for 3S LiPo (10.5–12.6 V) and 4S (14.0–16.8 V).
|
||
* Detection is automatic based on voltage.
|
||
* Returns 0–100, or 255 if voltage is out of range.
|
||
*/
|
||
uint8_t battery_estimate_pct(uint32_t voltage_mv);
|
||
|
||
#endif /* BATTERY_H */
|