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Anyone else had this?

I tried to upload the file directly and it put a line through the file name like this - is that a refusal?
1600455930532.png
 
It may be, maybe it is too big. I have just had a look and the biggest DAT file from my mini is around 12 Mb. I tried a 307Mb one from a P3, the latter got the same thing you did.
 
The flight was on Sept 17 at about 3:25 - I formatted the drive that day I think, so it may have a couple of other flights from the morning. All were short flights.

Here is a link to the DAT file via WeTransfer - Dropbox wanted me to upgrade but WeTransfer does it for free to 2Gb. I would appreciate knowing if it worked please. If it doesn't I will find another way.

 
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The flight was on Sept 17 at about 3:25 - I formatted the drive that day I think, so it may have a couple of other flights from the morning. All were short flights.

Here is a link to the DAT file via WeTransfer - Dropbox wanted me to upgrade but WeTransfer does it for free to 2Gb. I would appreciate knowing if it worked please. If it doesn't I will find another way.

PS the WeTransfer link is only valid for 7 days so the file will disappear by 25th Sept
 
The flight was on Sept 17 at about 3:25 - I formatted the drive that day I think, so it may have a couple of other flights from the morning. All were short flights.

Here is a link to the DAT file via WeTransfer - Dropbox wanted me to upgrade but WeTransfer does it for free to 2Gb. I would appreciate knowing if it worked please. If it doesn't I will find another way.

Thanks for retrieving the fc_log.log. I've been looking at a few of these lately. Yours is quite different from others I've seen.

Anyway, for those interested in looking at the fc_log.log try using this .csv
fc_log.csv

EDIT: I should mention that DatCon doesn't know the clock speed because it doesn't know the aircraft type. So the time scale won't match the .txt log

The data is somewhat confusing but another possibility is that there was an ESC failure for the right motors. The MM started tumbling by pitching forward and rolling CCW - consistent with a rightFront propulsion problem. But, totalGyroZ showed the MM rotating CCW which is not consistent with a rightFront problem.
1600523665713.png

The motorStatus data shows a change in both right motors.
1600523802160.png

and there is this from the eventLog stream
190.074 : 15554 [L-ESC]ESC3 link down||
190.079 : 15554 [L-ESC]ESC0 link down||
190.081 : 15555 [L-FMU/MOTOR]esc err, status:0
190.081 : 15555 [L-FMU/MOTOR]fault on , esc(1) is disconnect
190.081 : 15555 [L-FMU/MOTOR]fault on , esc(4) is disconnect
190.084 : 15555 [L-ESC]ESC1 link down||
190.089 : 15555 [L-ESC]ESC2 link down||
190.117 : 15556 [L-FMU/MOTOR]fault on , esc(2) is disconnect
190.117 : 15556 [L-FMU/MOTOR]fault on , esc(3) is disconnect

@gday The accelerometer and gyro data shows the MM mostly tumbling in pitch and roll and less so in yaw. Also, it appears that the impact was more of a controlled crash instead a high speed impact. Is this what you saw?
 
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BudWalker, did it give CsvView a headache? It may be that my computer is old for the file size but it took several minutes to even start putting out a motor speed chart.
 
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BudWalker, did it give CsvView a headache? It may be that my computer is old for the file size but it took several minutes to even start putting out a motor speed chart.
Mine too. That's why I provided the .csv which covers just the flight in question.

This fc_log.log illustrates a previously unknown aspect. There appears to be a fixed area of the fc_log.log in which the current .DAT is recorded. Previous larger .DATs don't get erased from that fixed area. When DatCon encounters these previous flights it uses a lot of resources trying to fix the time line.
 
Your csv doesn't work for me, do I need to be signed in to drop box? As a matter of interest which flight are you looking at on the 17th? I see one around 16:30GMT and one around 19:30GMT.
 
Your csv doesn't work for me, do I need to be signed in to drop box? As a matter of interest which flight are you looking at on the 17th? I see one around 16:30GMT and one around 19:30GMT.
I don't quite understand. Are you downloading the fc_log.csv from Dropbox and then directing CsvView to load the downloaded fc_log.csv?

It's the very first flight in fc_log.DAT.

You can create the .csv yourself by directing DatCon to just process the first 200 secs.
1600528936011.png
 
@gday The accelerometer and gyro data shows the MM mostly tumbling in pitch and roll and less so in yaw. Also, it appears that the impact was more of a controlled crash instead a high speed impact. Is this what you saw?

It happened very quickly and I was watching the screen mainly in disbelief - my friend who was watching the MM realized it was coming down fast (he did not notice any spin but it was still high at that point) - he felt he was maybe under it so moved away quickly and a second later it "landed" on the grass - neither of us felt the props were running when it landed and it did land in a regular position. All props are fine BTW. I did not try to control it from the moment I saw the image tumbling - I just moved backwards too - it felt like the whole thing took a very few seconds. It was moving very rapidly when I first saw it about 8' off the ground.

I do not believe my fingers were on any controls - can you tell from the data? I use an iPad and it tends to make me hold it and not the controller unless I am moving it around.
 
I remember now that after it happened I felt the battery may have failed, so I changed it but got the same ESC error so did not try taking off again. I just took a pic of the screen for the error number and it has been off since. Wouldit be worth firing it up just to see what it says?
 
I got mine to flat spin one day. IT refused to go a certain direction without yaw backlashing the other way back to the north.
 
This is what I see when I follow the link.
 

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I do not believe my fingers were on any controls - can you tell from the data? I use an iPad and it tends to make me hold it and not the controller unless I am moving it around.
If you go to the page DJI Flight Log Viewer - PhantomHelp.com you can see your flight, the attitude of drone (blue circle thing) and the stick commands.
The Blue circle thing maybe half and half an artificial horizon. For pitch it moves as a pilot in an aircraft would see the horizon move but for roll it may indicate indicate the actual roll.
 
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This is what I see when I follow the link.
I'm guessing that the Download button will be exposed if you increase the size of your browser. If not, then I don't know. It worked when I sent the link to my wife who doesn't have a Dropbox account.
 
Ah just in case the size of that png is confusing things, the png was a cropping of a screen capture to minimise the size of the image.
But I will see what happens if I enlarge the size of the browser window..................I still get the error message but there is a download button that worksThumbswayup
 
It happened very quickly and I was watching the screen mainly in disbelief - my friend who was watching the MM realized it was coming down fast (he did not notice any spin but it was still high at that point) - he felt he was maybe under it so moved away quickly and a second later it "landed" on the grass - neither of us felt the props were running when it landed and it did land in a regular position.

My understanding is that the motors on DJI drones stop if the drone pitches or rolls through more than 90°. So if one motor (or its props) failed, the resulting violent manoeuvre could quite easily cause all the motors to stop.
 
I remember now that after it happened I felt the battery may have failed, so I changed it but got the same ESC error so did not try taking off again. I just took a pic of the screen for the error number and it has been off since. Wouldit be worth firing it up just to see what it says?
Sure. Then retrieve the .DAT from the mobile device before DJI synchs it away. I'm betting that it will show the ESC errors in eventLog stream.
 
My understanding is that the motors on DJI drones stop if the drone pitches or rolls through more than 90°. So if one motor (or its props) failed, the resulting violent manoeuvre could quite easily cause all the motors to stop.
If you go to the page DJI Flight Log Viewer - PhantomHelp.com you can see your flight, the attitude of drone (blue circle thing) and the stick commands.
The Blue circle thing maybe half and half an artificial horizon. For pitch it moves as a pilot in an aircraft would see the horizon move but for roll it may indicate indicate the actual roll.
Wow - I have worked fairly extensively with computers since the 1980s and I am still constantly amazed by how they are evolving and even more amazed by what those who are helping me here can show me.

Thanks maelstrom for your comment - that sounds feasible based on my fleeting glimpse of it when it fell.

And thanks Philius for the revealing link. It looks as if I was not touching the controls at all when things went haywire. My goal was to hover and take pictures as I went up and only then move around more to get better angles. Meta4 was spot on with the timing in an earlier comment!

BudWalker you mean a file on the iPad right? Or will it be on the mSD card and if the latter should I format the card before linking or leave it as is with the big data file on it?

I should be able to find the right file on the iPad since it will be dated of course.

So start batteries, link then touch the error for more information? And take a pic! Then transfer any DAT file(s) to my PC.
 

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