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ad2b599420
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feat(firmware): BNO055 NDOF IMU driver on I2C1 (Issue #135)
Auto-detected alongside MPU6000. Acts as balance primary when MPU6000
fails, or provides NDOF-fused yaw/pitch when both sensors are present.
- include/bno055.h: full API — bno055_init/read/is_ready/calib_status/
temperature/save_offsets/restore_offsets
- src/bno055.c: I2C1 driver; probes 0x28/0x29, resets via SYS_TRIGGER,
enters NDOF mode; 2-burst 12-byte reads (gyro+euler, LIA+gravity);
Euler/gyro/accel scaling (÷16, ÷16, ÷100); auto-saves offsets to
RTC backup regs BKP0R–BKP6R on first full cal; restores on boot
(bno055_is_ready() returns true immediately); temperature updated 1Hz
- include/config.h: BNO055_BKP_MAGIC = 0xB055CA10
- src/main.c: bno055_init() in I2C probe block (before IWDG); imu_calibrated()
macro dispatches mpu6000_is_calibrated() vs bno055_is_ready();
BNO055 read deferred inside balance gate to avoid stalling main loop;
USB JSON reports bno_cs (calib status) and bno_t (temperature)
- test/test_bno055_data.py: 43 pytest tests (43/43 pass) — calib status
bit extraction, Euler/gyro/accel scaling, burst parsing, offset
round-trip packing, temperature signed-byte encoding
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-03-02 09:40:44 -05:00 |
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6f0ad8e92e
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feat(firmware): Jetson binary serial protocol on USART1 (Issue #120)
New jlink module replaces ASCII-over-USB-CDC jetson_cmd with a dedicated
hardware UART binary protocol at 921600 baud for reliable Jetson comms.
- include/jlink.h: JLinkState struct, jlink_tlm_status_t (20-byte packed),
command/telemetry IDs (0x01-0x07 cmd, 0x80 status), API declarations
- src/jlink.c: USART1 DMA2_Stream2_Channel4 circular RX (128 bytes),
IDLE interrupt, CRC16-XModem (poly 0x1021) frame parser state machine,
command dispatch (HEARTBEAT/DRIVE/ARM/DISARM/PID_SET/ESTOP),
jlink_send_telemetry() blocking TX (≈0.28 ms per frame)
- include/config.h: JLINK_BAUD=921600, JLINK_HB_TIMEOUT_MS=1000,
JLINK_TLM_HZ=50, FW_MAJOR/MINOR/PATCH version constants
- src/main.c: jlink_init(), jlink_process() in main loop, arm/disarm/
estop/PID flag handling, 50 Hz STATUS telemetry TX, jlink takes
priority over legacy jetson_cmd for speed/steer injection
- test/test_jlink_frames.py: 39 pytest tests (39/39 pass) — CRC16,
frame building, parser state machine, drive/PID/status encoding
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-03-02 09:22:34 -05:00 |
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4a46fad002
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feat(rc): CRSF/ELRS RC integration — telemetry uplink + channel fix (Issue #103)
## Summary
- config.h: CH1[0]=steer, CH2[1]=throttle (was CH4/CH3); CRSF_FAILSAFE_MS→500ms
- include/battery.h + src/battery.c: ADC3 Vbat reading on PC1 (11:1 divider)
battery_read_mv(), battery_estimate_pct() for 3S/4S auto-detection
- include/crsf.h + src/crsf.c: CRSF telemetry TX uplink
crsf_send_battery() — type 0x08, voltage/current/SoC to ELRS TX module
crsf_send_flight_mode() — type 0x21, "ARMED\0"/"DISARM\0" for handset OSD
- src/main.c: battery_init() after crsf_init(); 1Hz telemetry tick calls
crsf_send_battery(vbat_mv, 0, soc_pct) + crsf_send_flight_mode(armed)
- test/test_crsf_frames.py: 28 pytest tests — CRC8-DVB-S2, battery frame
layout/encoding, flight-mode frame, battery_estimate_pct SoC math
Existing (already complete from crsf-elrs branch):
CRSF frame decoder UART4 420000 baud DMA circular + IDLE interrupt
Mode manager: RC↔autonomous blend, CH6 3-pos switch, 500ms smooth transition
Failsafe in main.c: disarm if crsf_state.last_rx_ms stale > CRSF_FAILSAFE_MS
CH5 arm switch with ARMING_HOLD_MS interlock + edge detection
RC override: mode_manager blends steer/speed per mode (CH6)
Closes #103
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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2026-03-02 08:35:48 -05:00 |
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