APM Planner 2.0.23-rc3: Download Log Retransmitting

Ground Control Software APM Planner 2.0
1

I’m recently a Linux convert so still a beginner using APM Planner as GCS. While downloading a log file it’s extremely slow and mostly sits at “Retransmitting”. This happens via USB @ 115200 and Radio/MavLink 57600.

This issue was also brought up here in another thread more than a year ago without any resolution:
http://discuss.ardupilot.org/t/log-download-speed/5335

2 Questions:

  1. Are APM Planner users going to something else to download their logs?

  2. I removed the Micro SD, connect it directly to my PC and copy the .bin over. Then using APM Planner > Graphs > Open Log the file loads to 99% then throws an warning:
    “Log parsing ended with errors. The data was truncated! Detected: 3414 data corruptions.” Whats going on?

Thanks guys.

2

What version of ArduPilot are you using, post the downloaded.bin

As for the download speed issue, I’ll check on linux, I would recommend not using the 3DR radio at all, it’s too slow.

The other option is to use a ESP8266 and WiFi connection to the pixhawk. Much faster and hands free

3

V3.3.3. No need to bother with my .bin, see below.

Slow sp was with USB, gave up on MAVlink a while back.

Didn’t know about the ESP8266 option. It’ll be here Tuesday. I’ll definitely be sure to disconnect before flight. Thanks.

4

I have not had this problem on USB with AC3.2.1 with APM Planner2 on either 32-bit or 64-bit Xenial. I have downloaded logs off the aircraft with the telemetry radios too without fail, but it takes awhile.

Frankly, I only delete the logs on the flight controller most times and never bother looking at them. They’re handy to diagnose a problem. But the tlogs are the ones I usually play back to look at a flight and how it went.

Since this is definitely not an issue here I’d suspect a possible USB configuration problem more than a problem in the software. I have seen the log parsing error thing, but I ignore that and they seem to load fine anyway.

5

Why when I copy the SD card directly connected to the PC with a USB Micro SD reader will APM Planner not open the .bin file? Is there something else being done during the download process?

6

Ok, but you realize that’s unhelpful. Being able to reproduce from your data file makes it quicker and easier diagnose. A quick download and I can verify what you are seeing. You can always send me a PM with link if you want it kept private.

Now i need to find a a bin log with the version firmware etc… you will have to be patient.

Thanks :slight_smile:

7

I was unsure I would be able to successfully download a log. I started a USB download from my last fight earlier today. The download started 5 hours ago and it’s currently at 65%. When I wake in 8 or so hours I’ll send it. I’d still like to know how they are read or why they can’t be direct copied. If it fails I’ll have the Wifi tomorrow.