RC Track intermittently freezes while driving

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also see the <a href="https://wiki.autosportlabs.com/RaceCapture_Quickstart">RaceCapture quick start guide</a>
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GTIspirit
Posts: 244
Joined: Wed Jan 09, 2013 11:20 am
Location: SE Michigan

RC Track intermittently freezes while driving

Post by GTIspirit »

I don't know if I have a defective RC Track device, or if the whole USB connection to Raspberry Pi just isn't reliable. The display always seems to freeze on me while driving. Always seems to happen within about 40 to 50mins of driving. Logs attached, though I don't know how helpful they are since they don't seem to have timestamps to find the event which aligns when the RC Track froze.

You can see that it froze at 12:49:16.

It's not the RPi App itself, as the touchscreen is still responsive and I can go into the system menu. It's the RC Track itself which seems to freeze. It's always done this, no matter the version of the RPi App or the version of the RC Track firmware.

Here's my unit.
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GTIspirit
Posts: 244
Joined: Wed Jan 09, 2013 11:20 am
Location: SE Michigan

Re: RC Track intermittently freezes while driving

Post by GTIspirit »

No, it's not the wiring because if I don't touch anything, and just power cycle the unit then it's fine, for a little while. But if I reboot the RPi app the connection is not restored. This is why I think the problem is actually with the RC Track device itself. :(

brentp
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Re: RC Track intermittently freezes while driving

Post by brentp »

Does it happen if your laptop is connected to the unit via USB for an extended period of time? You should be able to test that scenario pretty easily in the garage.

The RaceCapture hardware is very robust against hanging - we have a hardware watchdog that reboots the unit in case there is a firmware crash.
Brent Picasso
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GTIspirit
Posts: 244
Joined: Wed Jan 09, 2013 11:20 am
Location: SE Michigan

Re: RC Track intermittently freezes while driving

Post by GTIspirit »

It has nothing to do with a laptop being connected. The dash values froze after idling the car for a few minutes in the garage, not even while driving. Just the RCTrack Mk2 and the RasPi dash. The Raspberry Pi app is fine, it's still responsive. The dash values freeze, as in the RC Track freezes. Screenshot shows it froze at 17:38:03. And yes, when it freezes everything stop updating, not only the CAN values but also the UTC clock.

Doesn't appear to be anything related to the USB connection because if I cycle the power without touching the USB then everything is fine. And it can't be CAN, because then the UTC clock would keep working. That's why I'm suspecting the RC Track itself.
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brentp
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Re: RC Track intermittently freezes while driving

Post by brentp »

Do the values also freeze if connected via laptop, bluetooth to Android, or WiFi to Android or iOS? (does it freeze on those devices)

When the values freeze, do you see any flashing red LEDs on the unit?

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