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Thread: DSATX Showing Under/Over temp at ~75F

  1. #11
    FLAC
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    Quote Originally Posted by cherrybomb View Post
    Also, if it's of any further use. The board shows Rev 1.6, and the sticker on the back, which I assume is a serial number, is D432606.

    I'm getting the sense that I may have done something to cause the firmware to freak out, or I have a defective unit. Bummer. :-(
    I'll send you a firmware update. pm me your email you want me to send it to. It should fix the problem if you read ~5 volts, ~0.5 volts and ~0 volts on the 3 pins of the temp sensor.
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  2. #12
    Variable Bitrate cherrybomb's Avatar
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    Quote Originally Posted by zootjeff View Post
    I'll send you a firmware update. pm me your email you want me to send it to. It should fix the problem if you read ~5 volts, ~0.5 volts and ~0 volts on the 3 pins of the temp sensor.
    PM Sent.. The temp sensor did check out with the correct voltages, so hopefully reflashing the firmware is all it needs. :-)
    '99 Ford Explorer Eddie Bauer
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  3. #13
    Variable Bitrate cherrybomb's Avatar
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    Hey Jeff,

    Just wanted to give you an update.

    The firmware reflash did resolve the temperature problem. And the diagnostic readout is showing "sane" values now.

    I'm experiencing some other weirdness now though, which I'm still troubleshooting to make sure it's not my install.

    I'll be sure to post back here when/if I need some help.

    Thank you very much for being so helpful and responsive so far.
    '99 Ford Explorer Eddie Bauer
    CarPC Progress ~= 97%. Everything is installed, and operational. Still need to tweak and tune, and do some "finish" fabrication.
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  4. #14
    Newbie epod86's Avatar
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    I hate to say it but it looks like I'm having the exact same (well, very similiar) problems. I just spoke at length about it over DSATX Brainstem Guidelines. I've pretty much narrowed it down to the brain stem. I'll do some probing tomorrow morning.
    Car PC Progress:

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  5. #15
    Variable Bitrate cherrybomb's Avatar
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    Quote Originally Posted by epod86 View Post
    I hate to say it but it looks like I'm having the exact same (well, very similiar) problems. I just spoke at length about it over DSATX Brainstem Guidelines. I've pretty much narrowed it down to the brain stem. I'll do some probing tomorrow morning.
    I found that after resetting my DSATX, and reflashing the firmware, my only remaining problem was that I was leaving the brainstem plugged into my CarPC and the DSATX. Evidently the junk that it spits out when booting up, causes the DSATX to shut off.

    Once I removed the brainstem from the equation completely, things seemed to start behaving.
    '99 Ford Explorer Eddie Bauer
    CarPC Progress ~= 97%. Everything is installed, and operational. Still need to tweak and tune, and do some "finish" fabrication.
    CarPC Project Web Site

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  6. #16
    Newbie epod86's Avatar
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    Yep, sounds exactly like the problems I'm having, take the brainstem out, and (mostly) everything starts working. Right now my only lingering (non-brainstem) problem is that I can't dumb boot the DSATX anymore. Oh well, I've not a switch to ACC for that.

    I'd just like to be able the get the brainstem working long enough to adjust a few hard coded settings, like the instant aux off. Hoping for the update, will see what that does to the system.
    Car PC Progress:

    Planning: 90%
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  7. #17
    Variable Bitrate cherrybomb's Avatar
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    Quote Originally Posted by epod86 View Post
    Yep, sounds exactly like the problems I'm having, take the brainstem out, and (mostly) everything starts working. Right now my only lingering (non-brainstem) problem is that I can't dumb boot the DSATX anymore. Oh well, I've not a switch to ACC for that.

    I'd just like to be able the get the brainstem working long enough to adjust a few hard coded settings, like the instant aux off. Hoping for the update, will see what that does to the system.
    In order to successfully change the settings through the brainstem, I had to power the computer using a regular AC power supply, and power the DSATX either from the car, or a 9V battery.

    I could then use the brainstem after the computer had powered up, and wasn't depending upon the DSATX to power the computer. The only setting I set was the EARLYAUXOFF, and everything else seemed to work okay for me.
    '99 Ford Explorer Eddie Bauer
    CarPC Progress ~= 97%. Everything is installed, and operational. Still need to tweak and tune, and do some "finish" fabrication.
    CarPC Project Web Site

    SpaceNavigatorDriver SourceForge Project

    Check out my blog.

  8. #18
    Constant Bitrate
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    i seem to havign the same prob but i never hooked up a serial cable to the PSU ever has always been jstu the power wires and thats it. and now all esudden after months and months of it workgni with no prob, it wont turn on it jsut blinks 4 times. and this coudl be even when the inside of tha tcar has been in the ac for like an hour and i try unpluging the power and back in again to reset the DSATX and still goes back to 4 blinks.

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