Ryan Johnston
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Ryan Johnston's Discussions

Log file often not generated

Started this discussion. Last reply by Ryan Johnston Oct 12, 2011. 8 Replies

Hi, After each flight i try to download the log file from my APM unit. Sometime it generates a log file, but most of the time it reports that there are no logs to download. Im taking off and landing…Continue

how to connect logic to hardware with the APM board

Started this discussion. Last reply by Jnixetra Oct 10, 2011. 10 Replies

I recently purchased the APM 1280 + IMU shield to fly my electric glider. I ultimately want to reprogram it to be able to find thermals autonomously.However im starting to think iv thrown myself in…Continue

Cant upload APM firmware: "Cant detect APM version"

Started this discussion. Last reply by Price Campbell Apr 10, 2012. 7 Replies

Hi everyone!Im new to the community, and the RC scene in general. Right now im in the early stages of my final year mechanical engineering project. Im starting with a radian electric glider, adding…Continue

Tags: problem, upload, firmware

 

Ryan Johnston's Page

Latest Activity

Price Campbell replied to Ryan Johnston's discussion Cant upload APM firmware: "Cant detect APM version"
"Hi there, I just soldered up my APM last night and got the same message, "Cant detect your APM version. Please check your cabling".  My computer sees it on com port 13, the FTDI drivers are installed properly.   I was thinking…"
Apr 10, 2012
Ryan Johnston replied to Ryan Johnston's discussion Log file often not generated
"Just completed the second log. It looks like its working properly now! I tried turning on NTUN this time too. Woohoo!   Thanks for ur help! Ill post on here again once i get some real data."
Oct 12, 2011
Ryan Johnston replied to Ryan Johnston's discussion Log file often not generated
"Yep tried that 10 minutes ago, and iv just produced a valid log . Im hoping thats fixed it! Maybe it rewrite over the old log. Weird.   Im testing it again now. It was successfully creating a small log occasionally before so it could…"
Oct 12, 2011

Developer
Michael Oborne replied to Ryan Johnston's discussion Log file often not generated
"try doing a log > erase from the cli. and then the log"
Oct 12, 2011
Ryan Johnston replied to Ryan Johnston's discussion Log file often not generated
"Iv just tried logging for another 10 minutes. Still no log file being created, the same result as most of my flights. Since its connected to APM Planner through USB, i tried logging data through my PC. That worked fine, it created a tlog which i…"
Oct 12, 2011
Ryan Johnston replied to Ryan Johnston's discussion Log file often not generated
"Hmm thats interesting. I figured that since the log was under 1mb it wasnt a space issue. It could indeed be that im running out of "pages"   Iv tried turning off everything except for the essentials: ATTITUDE_MED, GPS, MODE,…"
Oct 12, 2011

Moderator
Michael Pursifull replied to Ryan Johnston's discussion Log file often not generated
"To the left of the "Add Rely" button, and the bottom of the first post there is a "Follow" URL that will keep you updated on the thread discussion w/o needing to add a post, if you like. "
Oct 11, 2011
Jnixetra replied to Ryan Johnston's discussion how to connect logic to hardware with the APM board
"which line should i look at so it state the pin number? i'm not sure which one is the digital output pin or analog output pin of the APM board... :("
Oct 10, 2011

Developer
Michael Oborne replied to Ryan Johnston's discussion Log file often not generated
"the log you posted uses the entire dataflash Dumping Log number 1,    start page 2,   end page 4096   4096 is the last page in the dataflash, so it would appear your using the entire dataflash for these short logs. ie…"
Oct 10, 2011
Toby Mills replied to Ryan Johnston's discussion Log file often not generated
"Just adding my name to this so I get an update.I've often wondered this myself, but usually just use the APM Planner Logs."
Oct 10, 2011
Ryan Johnston posted a discussion

Log file often not generated

Hi, After each flight i try to download the log file from my APM unit. Sometime it generates a log file, but most of the time it reports that there are no logs to download. Im taking off and landing manually & flying around waypoints autonomously. When i do get a log, its only a small part of the flight. Iv turned on all log-able fields in the terminal. Im trying to understand when the log files are wiped. I assume that its when the APM unit loses power? APM gets reset each time i switch…See More
Oct 10, 2011
Sebastian Gralla replied to Ryan Johnston's discussion how to connect logic to hardware with the APM board
"read the apm code ;)"
Oct 7, 2011
Jnixetra replied to Ryan Johnston's discussion how to connect logic to hardware with the APM board
"hi i am facing the same problem as you now... can u tell me how to connect the LED so that the programme work? i will be very grateful if u can reply me.. THANKS!!!"
Oct 7, 2011
Obertan replied to Ryan Johnston's discussion how to connect logic to hardware with the APM board
"which pins to connect to light up the led?"
Sep 29, 2011

3D Robotics
Chris Anderson replied to Ryan Johnston's discussion how to connect logic to hardware with the APM board
"The Arduino tutorials can help you with PWM output. (It's really easy). Note that we don't use most of the native Arduino methods you'll see there in APM, because they're not efficient enough at the scale we're working…"
Jun 13, 2011
Ryan Johnston replied to Ryan Johnston's discussion how to connect logic to hardware with the APM board
"Woohoo, iv finally got outputs & LEDs going.   I understand the schematic now. I assumed that the outputs were coming straight out of the ATMega1280 unit, I was getting very confused.   Iv never been so happy to see flashing lights in…"
Jun 13, 2011

Profile Information

About Me:
Im a mechanical engineering student in final year, I live in Auckland, New Zealand. I study at the Auckland University of Technology.
Please tell us a bit about your UAV interest
Im using the Ardupilot Mega hardware for my final year engineering project. My airframe is a radian electric glider. Im hoping to develop a system that enables the glider to autonomously find thermals and stay in the air by soaring.
Hometown:
Tauranga

Comment Wall (1 comment)

At 3:32pm on May 22, 2011, Sebastian Gralla said…

Welcome!

Great project. Would be great If you could share the results with the community :)

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