Auto tap
Re: Auto tap I believe the AT1 is powered from the PC serial port so both DTR and RTS pins are held high by the Autotap software. If these pins are not working properly the com port may still function properly for other applications (that do not use these pins) but AT1 interface will not power up.
Just a wild guess <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />
Just a wild guess <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />
Teching In
Joined: Mar 2002
Posts: 22
Likes: 0
Re: Auto tap </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by EFIliveV5:
<strong>I believe the AT1 is powered from the PC serial port so both DTR and RTS pins are held high by the Autotap software. If these pins are not working properly the com port may still function properly for other applications (that do not use these pins) but AT1 interface will not power up.
Just a wild guess <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Nope. All of the autotap's take their power from the vehicle. If you have a blown fuse, this may cause a loss of power on the OBDII port. If you want to get to the bottom of your problem contact support@autotap.com
<strong>I believe the AT1 is powered from the PC serial port so both DTR and RTS pins are held high by the Autotap software. If these pins are not working properly the com port may still function properly for other applications (that do not use these pins) but AT1 interface will not power up.
Just a wild guess <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Nope. All of the autotap's take their power from the vehicle. If you have a blown fuse, this may cause a loss of power on the OBDII port. If you want to get to the bottom of your problem contact support@autotap.com
Re: Auto tap </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Nope. All of the autotap's take their power from the vehicle. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I stand corrected <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />
I do believe early model AT1 interfaces did use the RTS/DTR lines for power.
I develop software for them and found that to be the case.
However, I just tested a later model interface and it appears to work fine without the DTR and RTS lines.
I do believe early model AT1 interfaces did use the RTS/DTR lines for power.
I develop software for them and found that to be the case.
However, I just tested a later model interface and it appears to work fine without the DTR and RTS lines.
