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HyperZulu · 06-13-2007, 10:25 AM

1 - I understand how it works and it would work great except for the fact that the power supply won't send a second pulse for off/standby(in my case) unless I have LOWVOLTS set to something like 12.8V (meaning the car is off). If I use VTURNON=1 and LOWVOLTS=1050 then I turn on the car (PC starts up fine)... turn the car off... it keeps humming along unless the DSATX sees less than LOWVOLTS and then does a hard boot off. Is this how it's supposed to be or should it turn on after VINHIGHTHRESH and turn off when below VINHIGHTHRESH?... and then kill power after battery is below LOWVOLTS?

I'm unsure about how this works and it's possible that my yellow top battery is just not playing nice with everything because it holds a ridiculous charge after the car has been on for a while, so the 1300 default may not even trigger for a while. So, I'm just wondering what would trigger the "off pulse" from the power supply? LOWVOLTS or simply just when the battery is below VINHIGHTHRESH?

2 - ENABLE5VSBOFF... this is be default set to 0001(true) so the power supply should be turning off the 5v rail anyway. I've had it set to true and false with no change in behavior. So, I've left it at the default of true and have continued using standby mode. Now, I'm not sure if standby mode is being kept alive simply because of this side effect, but whatever...

This thread suggests I need the previous setting and ENABLESLEEP to false:
http://www.mp3car.com/vbulletin/powe...e-request.html

I haven't had any problems maintaining standby mode with them on though. I just don't like how the 5v rail is using way more power than it needs to if I have my USB peripherals connected to the PC during standby. It shows 3v running through the 5v rail if usb attached and 0-1v if usb not attached. Seems kind of sketchy.

06-13-2007, 10:25 AM	#3
HyperZulu Constant Bitrate Join Date: Nov 2006 Location: North Hollywood, CA Posts: 115	1 - I understand how it works and it would work great except for the fact that the power supply won't send a second pulse for off/standby(in my case) unless I have LOWVOLTS set to something like 12.8V (meaning the car is off). If I use VTURNON=1 and LOWVOLTS=1050 then I turn on the car (PC starts up fine)... turn the car off... it keeps humming along unless the DSATX sees less than LOWVOLTS and then does a hard boot off. Is this how it's supposed to be or should it turn on after VINHIGHTHRESH and turn off when below VINHIGHTHRESH?... and then kill power after battery is below LOWVOLTS? I'm unsure about how this works and it's possible that my yellow top battery is just not playing nice with everything because it holds a ridiculous charge after the car has been on for a while, so the 1300 default may not even trigger for a while. So, I'm just wondering what would trigger the "off pulse" from the power supply? LOWVOLTS or simply just when the battery is below VINHIGHTHRESH? 2 - ENABLE5VSBOFF... this is be default set to 0001(true) so the power supply should be turning off the 5v rail anyway. I've had it set to true and false with no change in behavior. So, I've left it at the default of true and have continued using standby mode. Now, I'm not sure if standby mode is being kept alive simply because of this side effect, but whatever... This thread suggests I need the previous setting and ENABLESLEEP to false: http://www.mp3car.com/vbulletin/powe...e-request.html I haven't had any problems maintaining standby mode with them on though. I just don't like how the 5v rail is using way more power than it needs to if I have my USB peripherals connected to the PC during standby. It shows 3v running through the 5v rail if usb attached and 0-1v if usb not attached. Seems kind of sketchy.