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Cannot graph telemetry logs


(charles linquist) #1

For many versions of MP, I have not been able to graph telemetry logs. I can load a log and “play” it, but I cannot graph telemetry logs under any circumstances. I cannot even open OLD log files that I once could graph.

When I transfer the log files to another computer, that computer will not graph the log files!

I’m running MP 1.3.56

I need to graph the log files!!!

When I try to graph a log file, I get an error pane that says -

System.NullReferenceException: Object reference not set to and instance of an object at MissionPlannerCurrent State.UpdateCurrentSettings…


(Andre-K) #2

Try Apmplanner2 , much faster and better for log analysis.


(Michael Oborne) #3

please upgrade to the latest MP.


(charles linquist) #4

MIchael,

I updated to 1.3.57 the graphing function still doesn’t work. All the
other functions are fine.

Charles Linquist

Check out my multirotor blog at http://calmultirotor.com


(Michael Oborne) #5

do you get an error? I don’t have enough info to check the issue


(charles linquist) #6

[Michael_Oborne] Michael_Oborne
https://discuss.ardupilot.org/u/michael_oborne
July 22

do you get an error? I don’t have enough info to check the issue

Below is a screenshot of the error. Let me know if you don’t get it.


(Michael Oborne) #7

the latest mp update 1.3.57 should fix this.


(charles linquist) #8

[Michael_Oborne] Michael_Oborne
https://discuss.ardupilot.org/u/michael_oborne
July 23

the latest mp update 1.3.57 should fix this.

I updated to 1.3.57. Still doesn’t work.

Screen capture below:

Charles Linquist


(Michael Oborne) #9

can I get a copy of your log? are you running modified ArduPilot code?


(charles linquist) #10

No mods. Latest beta PixHawk code.

tlog file attached.

Charles Linquist

2018-07-21 15-21-02.zip (290 KB)

2018-07-21 15-21-02.tlog (561 KB)


(charles linquist) #11

I should mention that APM Planner DOES work.


(Michael Oborne) #12

Do you happen to have speech prompts turned on?

I think it might be a bad setting but not sure yet.


(Michael Oborne) #13

the reason I ask is because looking at the line numbers in your screenshot don’t match the code used to generate that release version.


(charles linquist) #14

I’ll try various things. But it doesn’t work on 3 different computers.
All have voice prompts turned on.

Charles Linquist


(Michael Oborne) #15

try turning voice prompts off, and see if that changes anything?

knowing this will at least pinpoint it to a single spot


(charles linquist) #16

Michael,

I don’t know if you got my earlier message. Turning off voice prompts
makes it work again!

Charles Linquist

Check out my multirotor blog at http://calmultirotor.com


(Michael Oborne) #17

perfect thanks, now I have somewhere to look for the cause

could you send me you config file it should be here
"C:\Users<username>\Documents\Mission Planner\config.xml"

I would just like to check what you have set


(charles linquist) #18

[Michael_Oborne] Michael_Oborne
https://discuss.ardupilot.org/u/michael_oborne
July 28

perfect thanks, now I have somewhere to look for the cause

could you send me you config file it should be here
"C:\Users\Documents\Mission Planner\config.xml"

I would just like to check what you have set


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    In Reply To

[charles_linquist] charles_linquist
https://discuss.ardupilot.org/u/charles_linquist
July 28

Michael, I don’t know if you got my earlier message. Turning off voice
prompts makes it work again! Charles Linquist Check out my multirotor
blog at http://calmultirotor.com

Visit Topic
https://discuss.ardupilot.org/t/cannot-graph-telemetry-logs/31121/17
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config.zip (2.95 KB)