Telemetry broken when 6 GPS Satellites fixed

[b14ckyy]

When GPS has fixed 6 or more satellites, Complete telemetry is broken. All Data modules freeze and activity light stops blinking. Reproducible with iNav 1.7.3 on SPRacing F3 Deluxe, SPRacing F3 Acro and Naze32 rev6. Same with different baud rates. Also tested on 1 PC and also one VM with Ubuntu 17.10
It seems to work with iNav 1.8-RC1 but only was able to get 7 satellite in my flat.

Should be investigated if MWP or iNav Bug.

[stronnag]

I very much doubt this is a mwp issue. But please post your iNav CLI diff.

[b14ckyy]

I used the SPRacing F3 Acro for verifying bug (Deluxe is used in my Camera Copter) and reflashed with full Erase. So it is iNav 1.7.3 completely in factory state, with only GPS on UART3 with 115200 or 57600 baud and activated uBlox Protocol without ground station support.

 diff

 version
 INAV/SPRACINGF3 1.7.3 Sep  9 2017 / 10:20:09 (974440df)

 resources

 mixer

 servo

 servo mix

 feature
feature GPS

 beeper

 map

 name

 serial
serial 2 2 115200 115200 0 115200

 led

 color

 mode_color

 aux

 adjrange

 rxrange

 master
set acc_hardware = MPU6050
set mag_hardware = NONE
set baro_hardware = NONE
set pitot_hardware = NONE

 profile
profile 1


# 

[stronnag]

Not helpful without telemetry settings

[b14ckyy]

Update:
After attaching the FC with iNav 1.8 and flashing back to 1.7.3, it worked fine with 8 Satellite fix. But after close and reopen MWP, the same issue is back.

Will it help to send dump?
Using only MSP telemetry. Same issue btw over USB and also 3DR radio.

# serial
serial 0 1 115200 38400 0 115200
serial 1 0 115200 38400 0 115200
serial 2 2 115200 115200 0 115200

# master
set looptime = 2000
set gyro_sync = OFF
set gyro_sync_denom = 2
set align_gyro = DEFAULT
set gyro_hardware_lpf = 42HZ
set gyro_lpf_hz = 60
set moron_threshold = 32
set gyro_notch1_hz = 0
set gyro_notch1_cutoff = 1
set gyro_notch2_hz = 0
set gyro_notch2_cutoff = 1
set vbat_adc_channel = 1
set rssi_adc_channel = 3
set current_adc_channel = 2
set airspeed_adc_channel = 0
set acc_notch_hz = 0
set acc_notch_cutoff = 1
set align_acc = DEFAULT
set acc_hardware = MPU6050
set acc_lpf_hz = 15
set acczero_x = 0
set acczero_y = 0
set acczero_z = 0
set accgain_x = 4096
set accgain_y = 4096
set accgain_z = 4096
set rangefinder_hardware = NONE
set align_mag = DEFAULT
set mag_hardware = NONE
set mag_declination = 0
set magzero_x = 0
set magzero_y = 0
set magzero_z = 0
set mag_calibration_time = 30
set baro_hardware = NONE
set baro_use_median_filter = ON
set pitot_hardware = NONE
set pitot_use_median_filter = ON
set pitot_noise_lpf =  0.600
set pitot_scale =  1.000
set mid_rc = 1500
set min_check = 1100
set max_check = 1900
set rssi_channel = 0
set rssi_scale = 30
set rssi_invert = OFF
set rc_smoothing = ON
set serialrx_provider = SPEK1024
set sbus_inversion = ON
set rx_spi_rf_channel_count = 0
set spektrum_sat_bind = 0
set rx_min_usec = 885
set rx_max_usec = 2115
set blackbox_rate_num = 1
set blackbox_rate_denom = 1
set blackbox_device = SPIFLASH
set min_throttle = 1150
set max_throttle = 1850
set min_command = 1000
set motor_pwm_rate = 400
set motor_pwm_protocol = STANDARD
set failsafe_delay = 5
set failsafe_recovery_delay = 5
set failsafe_off_delay = 200
set failsafe_throttle = 1000
set failsafe_throttle_low_delay = 100
set failsafe_procedure = SET-THR
set failsafe_stick_threshold = 50
set failsafe_fw_roll_angle = -200
set failsafe_fw_pitch_angle = 100
set failsafe_fw_yaw_rate = -45
set align_board_roll = 0
set align_board_pitch = 0
set align_board_yaw = 0
set gimbal_mode = NORMAL
set battery_capacity = 0
set vbat_scale = 110
set vbat_max_cell_voltage = 43
set vbat_min_cell_voltage = 33
set vbat_warning_cell_voltage = 35
set current_meter_scale = 400
set current_meter_offset = 0
set multiwii_current_meter_output = OFF
set current_meter_type = ADC
set yaw_motor_direction = 1
set yaw_jump_prevention_limit = 200
set 3d_deadband_low = 1406
set 3d_deadband_high = 1514
set 3d_neutral = 1460
set servo_center_pulse = 1500
set servo_pwm_rate = 50
set servo_lpf_hz = 20
set flaperon_throw_offset = 200
set tri_unarmed_servo = ON
set reboot_character = 82
set imu_dcm_kp = 2500
set imu_dcm_ki = 50
set imu_dcm_kp_mag = 10000
set imu_dcm_ki_mag = 0
set small_angle = 25
set fixed_wing_auto_arm = OFF
set disarm_kill_switch = ON
set auto_disarm_delay = 5
set gps_provider = UBLOX
set gps_sbas_mode = NONE
set gps_dyn_model = AIR_1G
set gps_auto_config = ON
set gps_auto_baud = ON
set gps_min_sats = 6
set deadband = 5
set yaw_deadband = 5
set pos_hold_deadband = 20
set alt_hold_deadband = 50
set 3d_deadband_throttle = 50
set fw_autotune_overshoot_time = 100
set fw_autotune_undershoot_time = 200
set fw_autotune_threshold = 50
set fw_autotune_ff_to_p_gain = 10
set fw_autotune_ff_to_i_tc = 600
set inav_auto_mag_decl = ON
set inav_gravity_cal_tolerance = 5
set inav_use_gps_velned = ON
set inav_gps_delay = 200
set inav_reset_altitude = FIRST_ARM
set inav_max_surface_altitude = 200
set inav_w_z_surface_p =  3.500
set inav_w_z_surface_v =  6.100
set inav_w_z_baro_p =  0.350
set inav_w_z_gps_p =  0.200
set inav_w_z_gps_v =  0.500
set inav_w_xy_gps_p =  1.000
set inav_w_xy_gps_v =  2.000
set inav_w_z_res_v =  0.500
set inav_w_xy_res_v =  0.500
set inav_w_acc_bias =  0.010
set inav_max_eph_epv =  1000.000
set inav_baro_epv =  100.000
set nav_disarm_on_landing = OFF
set nav_use_midthr_for_althold = OFF
set nav_extra_arming_safety = ON
set nav_user_control_mode = ATTI
set nav_position_timeout = 5
set nav_wp_radius = 100
set nav_wp_safe_distance = 10000
set nav_auto_speed = 300
set nav_auto_climb_rate = 500
set nav_manual_speed = 500
set nav_manual_climb_rate = 200
set nav_landing_speed = 200
set nav_land_slowdown_minalt = 500
set nav_land_slowdown_maxalt = 2000
set nav_emerg_landing_speed = 500
set nav_min_rth_distance = 500
set nav_rth_climb_first = ON
set nav_rth_climb_ignore_emerg = OFF
set nav_rth_tail_first = OFF
set nav_rth_allow_landing = ON
set nav_rth_alt_mode = AT_LEAST
set nav_rth_abort_threshold = 50000
set nav_rth_altitude = 1000
set nav_mc_bank_angle = 30
set nav_mc_hover_thr = 1500
set nav_mc_auto_disarm_delay = 2000
set nav_fw_cruise_thr = 1400
set nav_fw_min_thr = 1200
set nav_fw_max_thr = 1700
set nav_fw_bank_angle = 20
set nav_fw_climb_angle = 20
set nav_fw_dive_angle = 15
set nav_fw_pitch2thr = 10
set nav_fw_loiter_radius = 5000
set nav_fw_land_dive_angle = 2
set nav_fw_launch_velocity = 300
set nav_fw_launch_accel = 1863
set nav_fw_launch_max_angle = 45
set nav_fw_launch_detect_time = 40
set nav_fw_launch_thr = 1700
set nav_fw_launch_idle_thr = 1000
set nav_fw_launch_motor_delay = 500
set nav_fw_launch_spinup_time = 100
set nav_fw_launch_timeout = 5000
set nav_fw_launch_climb_angle = 18
set telemetry_switch = OFF
set telemetry_inversion = ON
set frsky_default_latitude =  0.000
set frsky_default_longitude =  0.000
set frsky_coordinates_format = 0
set frsky_unit = METRIC
set frsky_vfas_precision = 0
set frsky_vfas_cell_voltage = OFF
set hott_alarm_sound_interval = 5
set smartport_uart_unidir = OFF
set smartport_fuel_percent = OFF
set ibus_telemetry_type = 0
set ltm_update_rate = NORMAL
set ledstrip_visual_beeper = OFF
set i2c_speed = 400KHZ
set cpu_underclock = OFF
set debug_mode = NONE
set acc_task_frequency = 500
set attitude_task_frequency = 250
set async_mode = NONE
set throttle_tilt_comp_str = 0
set input_filtering_mode = OFF
set mode_range_logic_operator = OR
set stats = OFF
set stats_total_time = 0
set stats_total_dist = 0

[stronnag]

Actually, maybe it is an mwp issue (apologies). Give me a few minutes.

[b14ckyy]

OK. so I'll wait for 1.8 or use RC1.

[stronnag]

fixed in d3acd29

[stronnag]

It was an mwp bug, tried to use an too new MSP message with old firmware. Thanks for finding it.