@sidbh after the firmware update PPS signal looks like this:
it is 200ms period, with 5us pulse lenght. When there is NO FIX it is only in high state. Before the firmware update on Here4 the PPS signal was 1s period with 100ms pulse length.
I checked the osciloscope signal on PPS output without connecting the autopilot to PC. Nothig changes regardles the connection to the Mission Planner.
I tried Here4 update again but nothing changed.
I try to change GPS parameters in u-center like this:
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In messages view I change Timepulse to Pulse Lenght 500ms.
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I click Send button
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TP message in left view changes to black from gray for a short time and then return to grey.
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In UBX-CFG-CFG I click Send with save current configuration
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CFG message in left view changes to black from gray for a short time and then return to grey.
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In Packet Console there is confirmation that the data is sent.
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I don’t get ublox saving config on the DroneCAN panel:
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Nothing changes on PPS output.
Is there any possibility to restore factory default setings in Here4 or downgrade the firmware manually?