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Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. Internal clock drift and sensor/analog filter delays are uncorrected.", "recovery_note": "Timestamp unwrapping is ambiguous across long gaps; never infer missing cycles after corruption." }, "live": { "stats": { "packets": 820, "packet_gaps": 0, "reordered_or_duplicate": 0, "invalid_packets": 0, "unknown_session_packets": 0, "device_queue_drops": 2702 }, "error": null, "session": "f0cb30ef-4ef8a1e2", "imu": { "foot": { "accel_g": [ 0.00048828125, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 262, "timestamp_us": 2180001, "flags": 2 }, "shank": { "accel_g": [ 0.0009765625, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 251, "timestamp_us": 2180002, "flags": 2 } }, "health": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "emg_records": 10039, "foot_records": 262, "shank_records": 251, "battery_mv": 3800, "queue_high_water": 2936 }, "metadata": { "hardware_design": "AD7606_TWO_FIXED", "schema": "afo-recorder/3", "adc_model": "AD7606", "adc_bits": 16, "adc_reference_mv": 5000, "adc_reference_measured": false, "input_scale": 1, "input_midpoint_mv": 0, "adc_pga": 1, "adc_osr": 1, "adc_sensor_crc_supported": false, "adc_filter": "oversampling disabled; 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physical validation pending", "transport": "wifi_udp", "live_capture": true }, "records": 7852, "ended": true, "first_sequence": { "2": 1, "7": 1, "3": 1 }, "sequence_gaps": { "7": 2568, "3": 66, "2": 68 }, "stop_reason": 0 }, "udp_packets": 820, "source_sha256": "e0e3b78f4d1be3f33aa4ce9f4c9a0a24f2fa1b4dee009f8679047aabf961cc3c", "case": "queue-stall-350ms", "engine": "Wokwi web editor", "firmware": "ad7606-2ch-1.11", "hardware_measured": false, "serial_sha256": "cd50dc408fe2f0acac90872dcf33b6af5d8e921c50f90b5c0c3f7b7e83dd6151", "assessor_sha256": "a8be32e469cc56ed7c6f4daae19ed5ba16caaaae91f2aa385800f3aa8db9bc76", "merged_image_sha256": "bd3fc1b79f5095642310a30530dc0a1fbc44dcb81c0a0ed0d801fe87dc70f16b", "build_identity_checked_against_tree": false, "files_changed_since_test": [ "firmware/main/wifi_live.c", "firmware/main/board.h", "simulations/integrated-recorder/firmware/merged.bin", "simulations/integrated-recorder/firmware/integrated_recorder.elf" ], "executed": true }, { "pass": true, "failures": [], "production": { "case": 3, "fault": 1, "emg": 234, "foot": 17, "shank": 6, "missed": 0, "dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "queue_peak": 11, "udp": 34, "discarded": 0, "writes": 3, "syncs": 1, "closes": 1, "pages": 112 }, "saved_record_count": 128, "saved_bytes": 12288, "quality": { "source_sha256": "87d0b30b0ece59458a44dfcc73939241a5d744159f5b1c4358c658bd5e82321d", "synthetic": true, "counts": { "emg": 111, "foot": 14, "shank": 3, "status": 0, "end": 0 }, "session_finalized": false, "structurally_complete": false, "no_detected_sample_loss": false, "signal_checks_pass": true, "research_ready": false, "sequence_gaps": { "emg": 0, "foot": 0, "shank": 0 }, "anomalies": { "sequence_regressions": 0, "timestamp_regressions": 0, "emg_clipped_samples": 0, "emg_out_of_range": 0, "imu_invalid_samples": 0, "imu_timestamp_anomalies": 0, "timing_uncertain_records": 17, "flagged_gap_records": 0 }, "emg_observed_skipped_slots": 0, "emg_rate_from_host_timestamps_hz": 7983.742197706489, "last_status": null, "issues": [ { "kind": "missing_end", "message": "Unfinalized session; trailing samples may be lost." } ], "imu_clock": { "foot": { "tick_steps": 13, "median_tick_step": 4688.0, "expected_tick_step": 4687.4999, "nominal_tick_us": 1.0666667, "median_step_error_percent": 0.0107, "fit_reads": 4, "fit_span_s": null, "host_us_per_sensor_tick": null, "sensor_tick_error_ppm": null, "fit_note": "needs at least 40 FIFO reads spanning 10 s", "within_1_percent": true, "within_datasheet_tolerance": true, "host_time_fit": null }, "shank": { "tick_steps": 2, "median_tick_step": 4687.5, "expected_tick_step": 4687.4999, "nominal_tick_us": 1.0666667, "median_step_error_percent": 0.0, "fit_reads": 3, "fit_span_s": null, "host_us_per_sensor_tick": null, "sensor_tick_error_ppm": null, "fit_note": "needs at least 40 FIFO reads spanning 10 s", "within_1_percent": true, "within_datasheet_tolerance": true, "host_time_fit": null } }, "imu_clock_note": "Screen only: FIFO timestamp increments versus the recorded nominal tick (imu_timestamp_tick_us), and sensor ticks versus ESP32 interrupt times. Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. Internal clock drift and sensor/analog filter delays are uncorrected.", "recovery_note": "Timestamp unwrapping is ambiguous across long gaps; never infer missing cycles after corruption." }, "live": { "stats": { "packets": 34, "packet_gaps": 0, "reordered_or_duplicate": 0, "invalid_packets": 0, "unknown_session_packets": 0, "device_queue_drops": 0 }, "error": null, "session": "22995314-7a35fab1", "imu": { "foot": { "accel_g": [ 0.00048828125, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 17, "timestamp_us": 955001, "flags": 2 }, "shank": { "accel_g": [ 0.0009765625, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 6, "timestamp_us": 955002, "flags": 2 } }, "health": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "emg_records": 234, "foot_records": 17, "shank_records": 6, "battery_mv": 3800, "queue_high_water": 11 }, "metadata": { "hardware_design": "AD7606_TWO_FIXED", "schema": "afo-recorder/3", "adc_model": "AD7606", "adc_bits": 16, "adc_reference_mv": 5000, "adc_reference_measured": false, "input_scale": 1, "input_midpoint_mv": 0, "adc_pga": 1, "adc_osr": 1, "adc_sensor_crc_supported": false, "adc_filter": "oversampling disabled; internal analog filter", "sample_timestamp_event": "CONVST GPIO write software timestamp", "adc_clock_hz": 0, "sd_cmd_gpio": 47, "sd_clk_gpio": 39, "sd_d0_gpio": 40, "firmware": "ad7606-2ch-1.11", "hardware_variant": "breadboard", "synthetic": true, "trial_id": "trial_70c4e89a.afolog", "clock": "esp_timer_boot_us", "emg_hz": 8000, "imu_hz": 200, "imu_enabled": true, "active_channel_count": 2, "emg_channels": [ "EMG1", "EMG2" ], "calibration_state": "uncalibrated", "simultaneous": true, "accel_range_g": 16, "gyro_range_dps": 2000, "imu_timestamp_tick_us": 1.0666667, "imu_timing_calibrated": false, "imu_locations": [ "foot", "shank" ], "imu_time": "fifo_delta_first_irq", "placement_verified": false, "record_bytes": 64, "usb_recording_inhibit": true, "record_queue_entries": 20480, "analog_filter": "two cascaded 3.3k/47nF low-pass sections, each unity buffered; 100R series output, 1nF to ground; single-ended ADC", "unplugged_input_bias_mv": 1500, "unplugged_input_bias_ohm": 1000000, "clock_or_filter_delay_correction": "none", "notes": "Engineering prototype; physical validation pending", "transport": "wifi_udp", "live_capture": true }, "records": 257, "ended": true, "first_sequence": { "2": 1, "7": 1, "3": 1 }, "sequence_gaps": {}, "stop_reason": 1 }, "udp_packets": 34, "source_sha256": "c3b2ce82bb9cfd28cf0829819142e911bc7a2106622af00b0c3b45d732a2e16b", "case": "storage-write-error", "engine": "Wokwi web editor", "firmware": "ad7606-2ch-1.11", "hardware_measured": false, "serial_sha256": "3cf212b7ad5410552f7da7bf4717425a4631dff6df43027492dc033a19ab2482", "assessor_sha256": "a8be32e469cc56ed7c6f4daae19ed5ba16caaaae91f2aa385800f3aa8db9bc76", "merged_image_sha256": "bd3fc1b79f5095642310a30530dc0a1fbc44dcb81c0a0ed0d801fe87dc70f16b", "build_identity_checked_against_tree": false, "files_changed_since_test": [ "firmware/main/wifi_live.c", "firmware/main/board.h", "simulations/integrated-recorder/firmware/merged.bin", "simulations/integrated-recorder/firmware/integrated_recorder.elf" ], "executed": true }, { "pass": true, "failures": [], "production": { "case": 4, "fault": 7, "emg": 3187, "foot": 91, "shank": 80, "missed": 0, "dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "queue_peak": 59, "udp": 366, "discarded": 0, "writes": 29, "syncs": 3, "closes": 1, "pages": 112 }, "saved_record_count": 3359, "saved_bytes": 219072, "quality": { "source_sha256": "9186183210f6adf0f0d9d4056ac544d260a194c3d0c1dfef5a9dce7869ebdcd1", "synthetic": true, "counts": { "emg": 3187, "foot": 91, "shank": 80, "status": 0, "end": 1 }, "session_finalized": true, "structurally_complete": false, "no_detected_sample_loss": false, "signal_checks_pass": true, "research_ready": false, "sequence_gaps": { "emg": 0, "foot": 0, "shank": 0 }, "anomalies": { "sequence_regressions": 0, "timestamp_regressions": 0, "emg_clipped_samples": 0, "emg_out_of_range": 0, "imu_invalid_samples": 0, "imu_timestamp_anomalies": 0, "timing_uncertain_records": 171, "flagged_gap_records": 0 }, "emg_observed_skipped_slots": 0, "emg_rate_from_host_timestamps_hz": 7983.841866805661, "last_status": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "emg_records": 3187, "foot_records": 91, "shank_records": 80, "battery_mv": 3800, "queue_high_water": 59 }, "issues": [ { "kind": "abnormal_stop", "reason": 7 } ], "imu_clock": { "foot": { "tick_steps": 90, "median_tick_step": 4687.5, "expected_tick_step": 4687.4999, "nominal_tick_us": 1.0666667, "median_step_error_percent": 0.0, "fit_reads": 80, "fit_span_s": null, "host_us_per_sensor_tick": null, "sensor_tick_error_ppm": null, "fit_note": "needs at least 40 FIFO reads spanning 10 s", "within_1_percent": true, "within_datasheet_tolerance": true, "host_time_fit": null }, "shank": { "tick_steps": 79, "median_tick_step": 4688.0, "expected_tick_step": 4687.4999, "nominal_tick_us": 1.0666667, "median_step_error_percent": 0.0107, "fit_reads": 79, "fit_span_s": null, "host_us_per_sensor_tick": null, "sensor_tick_error_ppm": null, "fit_note": "needs at least 40 FIFO reads spanning 10 s", "within_1_percent": true, "within_datasheet_tolerance": true, "host_time_fit": null } }, "imu_clock_note": "Screen only: FIFO timestamp increments versus the recorded nominal tick (imu_timestamp_tick_us), and sensor ticks versus ESP32 interrupt times. Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. Internal clock drift and sensor/analog filter delays are uncorrected.", "recovery_note": "Timestamp unwrapping is ambiguous across long gaps; never infer missing cycles after corruption." }, "live": { "stats": { "packets": 366, "packet_gaps": 0, "reordered_or_duplicate": 0, "invalid_packets": 0, "unknown_session_packets": 0, "device_queue_drops": 0 }, "error": null, "session": "56562457-94c9fb0f", "imu": { "foot": { "accel_g": [ 0.00048828125, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 91, "timestamp_us": 1325001, "flags": 2 }, "shank": { "accel_g": [ 0.0009765625, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 80, "timestamp_us": 1325002, "flags": 2 } }, "health": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "emg_records": 3187, "foot_records": 91, "shank_records": 80, "battery_mv": 3800, "queue_high_water": 59 }, "metadata": { "hardware_design": "AD7606_TWO_FIXED", "schema": "afo-recorder/3", "adc_model": "AD7606", "adc_bits": 16, "adc_reference_mv": 5000, "adc_reference_measured": false, "input_scale": 1, "input_midpoint_mv": 0, "adc_pga": 1, "adc_osr": 1, "adc_sensor_crc_supported": false, "adc_filter": "oversampling disabled; 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physical validation pending", "transport": "wifi_udp", "live_capture": true }, "records": 3359, "ended": true, "first_sequence": { "2": 1, "7": 1, "3": 1 }, "sequence_gaps": {}, "stop_reason": 7 }, "udp_packets": 366, "source_sha256": "bf9903bb01e59d1424e433924e7de180ef2fbca18163efa8e9adf93195846125", "case": "usb-attached-during-recording", "engine": "Wokwi web editor", "firmware": "ad7606-2ch-1.11", "hardware_measured": false, "serial_sha256": "9a57eeaf5071d3a6f6bbea56c75a293e991ed26147f2d42c57b77dcf5a4757e9", "assessor_sha256": "a8be32e469cc56ed7c6f4daae19ed5ba16caaaae91f2aa385800f3aa8db9bc76", "merged_image_sha256": "bd3fc1b79f5095642310a30530dc0a1fbc44dcb81c0a0ed0d801fe87dc70f16b", "build_identity_checked_against_tree": false, "files_changed_since_test": [ "firmware/main/wifi_live.c", "firmware/main/board.h", "simulations/integrated-recorder/firmware/merged.bin", "simulations/integrated-recorder/firmware/integrated_recorder.elf" ], "executed": true }, { "pass": true, "failures": [], "production": { "case": 5, "fault": 4, "emg": 24004, "foot": 612, "shank": 601, "missed": 0, "dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "queue_peak": 63, "udp": 2702, "discarded": 0, "writes": 200, "syncs": 6, "closes": 1, "pages": 112 }, "saved_record_count": 25221, "saved_bytes": 1618240, "quality": { "source_sha256": "92e81485dab3c34390d5c4370439ecf6c4310e4fc9d2ad57b45947ce4c454e55", "synthetic": true, "counts": { "emg": 24004, "foot": 612, "shank": 601, "status": 3, "end": 1 }, "session_finalized": true, "structurally_complete": false, "no_detected_sample_loss": false, "signal_checks_pass": true, "research_ready": false, "sequence_gaps": { "emg": 0, "foot": 0, "shank": 0 }, "anomalies": { "sequence_regressions": 0, "timestamp_regressions": 0, "emg_clipped_samples": 0, "emg_out_of_range": 0, "imu_invalid_samples": 0, "imu_timestamp_anomalies": 0, "timing_uncertain_records": 1213, "flagged_gap_records": 0 }, "emg_observed_skipped_slots": 0, "emg_rate_from_host_timestamps_hz": 7983.824133015173, "last_status": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "emg_records": 24004, "foot_records": 612, "shank_records": 601, "battery_mv": 3200, "queue_high_water": 63 }, "issues": [ { "kind": "abnormal_stop", "reason": 4 } ], "imu_clock": { "foot": { "tick_steps": 611, "median_tick_step": 4688.0, "expected_tick_step": 4687.4999, "nominal_tick_us": 1.0666667, "median_step_error_percent": 0.0107, "fit_reads": 585, "fit_span_s": null, "host_us_per_sensor_tick": null, "sensor_tick_error_ppm": null, "fit_note": "needs at least 40 FIFO reads spanning 10 s", "within_1_percent": true, "within_datasheet_tolerance": true, "host_time_fit": null }, "shank": { "tick_steps": 600, "median_tick_step": 4687.5, "expected_tick_step": 4687.4999, "nominal_tick_us": 1.0666667, "median_step_error_percent": 0.0, "fit_reads": 579, "fit_span_s": null, "host_us_per_sensor_tick": null, "sensor_tick_error_ppm": null, "fit_note": "needs at least 40 FIFO reads spanning 10 s", "within_1_percent": true, "within_datasheet_tolerance": true, "host_time_fit": null } }, "imu_clock_note": "Screen only: FIFO timestamp increments versus the recorded nominal tick (imu_timestamp_tick_us), and sensor ticks versus ESP32 interrupt times. Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. Internal clock drift and sensor/analog filter delays are uncorrected.", "recovery_note": "Timestamp unwrapping is ambiguous across long gaps; never infer missing cycles after corruption." }, "live": { "stats": { "packets": 2702, "packet_gaps": 0, "reordered_or_duplicate": 0, "invalid_packets": 0, "unknown_session_packets": 0, "device_queue_drops": 1 }, "error": null, "session": "1c30e106-fcd08006", "imu": { "foot": { "accel_g": [ 0.00048828125, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 612, "timestamp_us": 3930001, "flags": 2 }, "shank": { "accel_g": [ 0.0009765625, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 601, "timestamp_us": 3930002, "flags": 2 } }, "health": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 0, "emg_records": 24004, "foot_records": 612, "shank_records": 601, "battery_mv": 3200, "queue_high_water": 63 }, "metadata": { "hardware_design": "AD7606_TWO_FIXED", "schema": "afo-recorder/3", "adc_model": "AD7606", "adc_bits": 16, "adc_reference_mv": 5000, "adc_reference_measured": false, "input_scale": 1, "input_midpoint_mv": 0, "adc_pga": 1, "adc_osr": 1, "adc_sensor_crc_supported": false, "adc_filter": "oversampling disabled; 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Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. 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Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. Internal clock drift and sensor/analog filter delays are uncorrected.", "recovery_note": "Timestamp unwrapping is ambiguous across long gaps; never infer missing cycles after corruption." }, "live": { "stats": { "packets": 4, "packet_gaps": 0, "reordered_or_duplicate": 0, "invalid_packets": 0, "unknown_session_packets": 0, "device_queue_drops": 0 }, "error": null, "session": "b5430e8b-9b88843c", "imu": {}, "health": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 1, "adc_errors": 0, "emg_records": 0, "foot_records": 0, "shank_records": 0, "battery_mv": 3800, "queue_high_water": 0 }, "metadata": { "hardware_design": "AD7606_TWO_FIXED", "schema": "afo-recorder/3", "adc_model": "AD7606", "adc_bits": 16, "adc_reference_mv": 5000, "adc_reference_measured": false, "input_scale": 1, "input_midpoint_mv": 0, "adc_pga": 1, "adc_osr": 1, "adc_sensor_crc_supported": false, "adc_filter": "oversampling disabled; internal analog filter", "sample_timestamp_event": "CONVST GPIO write software timestamp", "adc_clock_hz": 0, "sd_cmd_gpio": 47, "sd_clk_gpio": 39, "sd_d0_gpio": 40, "firmware": "ad7606-2ch-1.11", "hardware_variant": "breadboard", "synthetic": true, "trial_id": "trial_eb1c203a.afolog", "clock": "esp_timer_boot_us", "emg_hz": 8000, "imu_hz": 200, "imu_enabled": true, "active_channel_count": 2, "emg_channels": [ "EMG1", "EMG2" ], "calibration_state": "uncalibrated", "simultaneous": true, "accel_range_g": 16, "gyro_range_dps": 2000, "imu_timestamp_tick_us": 1.0666667, "imu_timing_calibrated": false, "imu_locations": [ "foot", "shank" ], "imu_time": "fifo_delta_first_irq", "placement_verified": false, "record_bytes": 64, "usb_recording_inhibit": true, "record_queue_entries": 20480, "analog_filter": "two cascaded 3.3k/47nF low-pass sections, each unity buffered; 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Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. Internal clock drift and sensor/analog filter delays are uncorrected.", "recovery_note": "Timestamp unwrapping is ambiguous across long gaps; never infer missing cycles after corruption." }, "live": { "stats": { "packets": 5, "packet_gaps": 0, "reordered_or_duplicate": 0, "invalid_packets": 0, "unknown_session_packets": 0, "device_queue_drops": 0 }, "error": null, "session": "b81ae167-d9d825f3", "imu": { "foot": { "accel_g": [ 0.00048828125, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 11, "timestamp_us": 925001, "flags": 2 } }, "health": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 1, "emg_records": 0, "foot_records": 11, "shank_records": 0, "battery_mv": 3800, "queue_high_water": 11 }, "metadata": { "hardware_design": "AD7606_TWO_FIXED", "schema": "afo-recorder/3", "adc_model": "AD7606", "adc_bits": 16, "adc_reference_mv": 5000, "adc_reference_measured": false, "input_scale": 1, "input_midpoint_mv": 0, "adc_pga": 1, "adc_osr": 1, "adc_sensor_crc_supported": false, "adc_filter": "oversampling disabled; 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physical validation pending", "transport": "wifi_udp", "live_capture": true }, "records": 12, "ended": true, "first_sequence": { "2": 1 }, "sequence_gaps": {}, "stop_reason": 6 }, "udp_packets": 5, "source_sha256": "756514680739f705dbc6f6ab43a0de3ca0cec54602ebe6ca3732c7bb38f0a6d8", "case": "adc-busy-stays-low", "engine": "Wokwi web editor", "firmware": "ad7606-2ch-1.11", "hardware_measured": false, "serial_sha256": "8b3b72f047681c67ffc98ad0956fda41a5816bf77671f29797385188949acc6e", "assessor_sha256": "a8be32e469cc56ed7c6f4daae19ed5ba16caaaae91f2aa385800f3aa8db9bc76", "merged_image_sha256": "bd3fc1b79f5095642310a30530dc0a1fbc44dcb81c0a0ed0d801fe87dc70f16b", "build_identity_checked_against_tree": false, "files_changed_since_test": [ "firmware/main/wifi_live.c", "firmware/main/board.h", "simulations/integrated-recorder/firmware/merged.bin", "simulations/integrated-recorder/firmware/integrated_recorder.elf" ], "executed": true }, { "pass": true, "failures": [], "production": { "case": 6, "fault": 6, "emg": 0, "foot": 11, "shank": 0, "missed": 0, "dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 1, "queue_peak": 11, "udp": 5, "discarded": 0, "writes": 3, "syncs": 3, "closes": 1, "pages": 112 }, "saved_record_count": 12, "saved_bytes": 4864, "quality": { "source_sha256": "1f771ce7c4cac1bdcf4b761f1036a505ef8cafbda89c011d2dd7082fe08381cb", "synthetic": true, "counts": { "emg": 0, "foot": 11, "shank": 0, "status": 0, "end": 1 }, "session_finalized": true, "structurally_complete": false, "no_detected_sample_loss": false, "signal_checks_pass": true, "research_ready": false, "sequence_gaps": { "emg": 0, "foot": 0, "shank": 0 }, "anomalies": { "sequence_regressions": 0, "timestamp_regressions": 0, "emg_clipped_samples": 0, "emg_out_of_range": 0, "imu_invalid_samples": 0, "imu_timestamp_anomalies": 0, "timing_uncertain_records": 11, "flagged_gap_records": 0 }, "emg_observed_skipped_slots": 0, "emg_rate_from_host_timestamps_hz": null, "last_status": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 1, "emg_records": 0, "foot_records": 11, "shank_records": 0, "battery_mv": 3800, "queue_high_water": 11 }, "issues": [ { "kind": "missing_stream", "stream": "emg" }, { "kind": "missing_stream", "stream": "shank" }, { "kind": "abnormal_stop", "reason": 6 } ], "imu_clock": { "foot": { "tick_steps": 10, "median_tick_step": 4687.5, "expected_tick_step": 4687.4999, "nominal_tick_us": 1.0666667, "median_step_error_percent": 0.0, "fit_reads": 1, "fit_span_s": null, "host_us_per_sensor_tick": null, "sensor_tick_error_ppm": null, "fit_note": "needs at least 40 FIFO reads spanning 10 s", "within_1_percent": true, "within_datasheet_tolerance": true, "host_time_fit": null } }, "imu_clock_note": "Screen only: FIFO timestamp increments versus the recorded nominal tick (imu_timestamp_tick_us), and sensor ticks versus ESP32 interrupt times. Includes interrupt latency; not a calibration. host_time_fitted_us in foot.csv/shank.csv maps each sample onto the ESP32 clock using a least-squares fit of all interrupt anchors; use it, not host_time_estimate_us, to align IMU with EMG in recordings longer than a few seconds.", "timing_note": "IMU host timestamps are estimates. Internal clock drift and sensor/analog filter delays are uncorrected.", "recovery_note": "Timestamp unwrapping is ambiguous across long gaps; never infer missing cycles after corruption." }, "live": { "stats": { "packets": 5, "packet_gaps": 0, "reordered_or_duplicate": 0, "invalid_packets": 0, "unknown_session_packets": 0, "device_queue_drops": 0 }, "error": null, "session": "09ee938f-9dca4b96", "imu": { "foot": { "accel_g": [ 0.00048828125, 0.0, 1.0 ], "gyro_dps": [ 0.0, 0.0, 0.0 ], "sequence": 11, "timestamp_us": 925001, "flags": 2 } }, "health": { "timer_missed": 0, "queue_dropped": 0, "imu_errors": 0, "fifo_overflows": 0, "adc_errors": 1, "emg_records": 0, "foot_records": 11, "shank_records": 0, "battery_mv": 3800, "queue_high_water": 11 }, "metadata": { "hardware_design": "AD7606_TWO_FIXED", "schema": "afo-recorder/3", "adc_model": "AD7606", "adc_bits": 16, "adc_reference_mv": 5000, "adc_reference_measured": false, "input_scale": 1, "input_midpoint_mv": 0, "adc_pga": 1, "adc_osr": 1, "adc_sensor_crc_supported": false, "adc_filter": "oversampling disabled; internal analog filter", "sample_timestamp_event": "CONVST GPIO write software timestamp", "adc_clock_hz": 0, "sd_cmd_gpio": 47, "sd_clk_gpio": 39, "sd_d0_gpio": 40, "firmware": "ad7606-2ch-1.11", "hardware_variant": "breadboard", "synthetic": true, "trial_id": "trial_21afbf7f.afolog", "clock": "esp_timer_boot_us", "emg_hz": 8000, "imu_hz": 200, "imu_enabled": true, "active_channel_count": 2, "emg_channels": [ "EMG1", "EMG2" ], "calibration_state": "uncalibrated", "simultaneous": true, "accel_range_g": 16, "gyro_range_dps": 2000, "imu_timestamp_tick_us": 1.0666667, "imu_timing_calibrated": false, "imu_locations": [ "foot", "shank" ], "imu_time": "fifo_delta_first_irq", "placement_verified": false, "record_bytes": 64, "usb_recording_inhibit": true, "record_queue_entries": 20480, "analog_filter": "two cascaded 3.3k/47nF low-pass sections, each unity buffered; 100R series output, 1nF to ground; single-ended ADC", "unplugged_input_bias_mv": 1500, "unplugged_input_bias_ohm": 1000000, "clock_or_filter_delay_correction": "none", "notes": "Engineering prototype; physical validation pending", "transport": "wifi_udp", "live_capture": true }, "records": 12, "ended": true, "first_sequence": { "2": 1 }, "sequence_gaps": {}, "stop_reason": 6 }, "udp_packets": 5, "source_sha256": "84d5603768674162a9f7d9d715cc1ee5c6a9457e64c350998aa6e2fa918c285e", "case": "adc-trigger-ignored", "engine": "Wokwi web editor", "firmware": "ad7606-2ch-1.11", "hardware_measured": false, "serial_sha256": "8c646dab7de89df8412403ded1e2b2d716fd585f420f4d447e1dedb7bda23b87", "assessor_sha256": "a8be32e469cc56ed7c6f4daae19ed5ba16caaaae91f2aa385800f3aa8db9bc76", "merged_image_sha256": "bd3fc1b79f5095642310a30530dc0a1fbc44dcb81c0a0ed0d801fe87dc70f16b", "build_identity_checked_against_tree": false, "files_changed_since_test": [ "firmware/main/wifi_live.c", "firmware/main/board.h", "simulations/integrated-recorder/firmware/merged.bin", "simulations/integrated-recorder/firmware/integrated_recorder.elf" ], "executed": true } ] }