PC Shuts off w/ BrainStem on DSATX?

Lazyflip · 04-29-2007, 08:05 AM

I was attempting to connect the brainstem to the DSATX for real time status tracking but, right when it is connect the computer does a hard shut down. I've tried connecting it with the computer off but when I turn the ign. on the computer won't power up. What could be going wrong here?

Giuliano · 04-29-2007, 10:46 AM

Perhaps the brainstem is backwards?

Lazyflip · 04-29-2007, 12:32 PM

I can only get it on one way? If I reverse it, it won't slide in all the way. I also noticed that when I have it fully on the red LED stays lit, but when it's reversed it kind of flickers. I couldn't find anything in the manual about the LEDs on the BrainStem so I'm not sure what each one means.

Lazyflip · 04-30-2007, 12:06 AM

I finally got it to work on my roomates computer, but the connection seems messed up. If I put the brainstem in all the way, there's no communication going on. I have to have it on like half way only and even with it half way on the connection goes in and out. Sometimes I get half responses like "Enable Wr", instead of the full "Enable writing? y/n". Is my brainstem bad?

zootjeff · 04-30-2007, 06:50 PM

Quote: Originally Posted by Lazyflip

I was attempting to connect the brainstem to the DSATX for real time status tracking but, right when it is connect the computer does a hard shut down. I've tried connecting it with the computer off but when I turn the ign. on the computer won't power up. What could be going wrong here?

What does the sticker on the back of your DSATX say?

Lazyflip · 04-30-2007, 11:30 PM

Quote: Originally Posted by zootjeff

What does the sticker on the back of your DSATX say?

D72307.

zootjeff · 05-01-2007, 09:02 AM

Quote: Originally Posted by Lazyflip

D72307.

Are you plugging in the brainstem when the unit is on? The brainstem is not hot plugable.

Lazyflip · 05-01-2007, 09:58 AM

Yes, the computer was running the first time I plugged it. I left it plugged in when the computer turned off and I attempted to turn it back on but it wouldn't. I unplugged the brainstem and tried booting and it did. This left me puzzled. So I unplugged the DSATX from the MB and the AC-DC PS I was powering it from and just used the AC-DC to power up the computer. Now the only thing connected to the DSATX was the brainstem. I opened up HyperTerminal but it was a no-go. I got no readings or responses using any of the commands. I figured that the DSATX may have needed power to communicate with it so I connected only the GND and VIN, but I still got nothing. I moved to another to computer to make sure it wasn't my COM port but I was getting the same results. So I started messing with the connection between the brainstem and DSATX by wiggleing it up and down and suddenly I get sporadic readings from it. The connection would come in and out until I found the sweet spot which was only halfway plugged in. I wasn't sure how long the connection was going to last so I hard coded the timer and the min. voltage. Those are the only settings I wanted to change. I uplugged the brainstem and went back to the carputer to test the timer settings. The timer worked great. I unplugged again and went back to the computer I was programming it from. Again I had to wiggle it up and down to find that sweet spot before I could get any communication. I sat it down to watch the readings for a couple seconds then picked it back up and the readings started coming in incomplete and jumbled up sometimes. I gave up on it and unplugged it. This is were it stands now. I don't know if you missed my post but I posted a shorter version of this, it's the 4th post in this thread.