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Serial Port/Comm Port is bad?
Name: ZMAN Z28 Date: February 25, 2005 at 18:29:02 Pacific OS: XP Pro CPU/Ram: Pentium M 1.5
Comment:
I have a Dell Latitude d600 laptop running XP pro. I am trying to use a cable to connect to my cars computer, so I can scan my cars computer. I know for a fact the cable is good, because I tested it with my home pc and it checks good. I hook it up to the serial port on my laptop, and the cable can't communicate. So far I have changed comm ports in the bios, deleted them in the bios, and added them back. Nothing works. Under device manager on the laptop, it says my comm port is ok, no errors. I am confused. Please any advice.
Name: elric Date: February 26, 2005 at 04:56:37 Pacific
Reply:
G'day,
It could be any number of things, but one thing you should make sure of is the type of cable required. Computer to computer communications is done with crossover (or null modem ) cables because both connectors are the same (DTE to DTE). You would also need to know the exact baud rate and format of the bytes. If you do have the correct type of cable, you will then need to know the protocol between your computer and car. I assume that you have some kind of software to do this? You could use a terminal programme (ie hyperterminal)to send the commands to the car computer and see what comes back. regards, Elric
Summary: G'day, I'm rather surprised that a Laptop does not have at least one serial port (9 pin DIN Female).RS-232 is a hardware standard that describes the signals electrically. The PC comm port complies (we...
Summary: Well there is not that many applications that would want to use the serial port. What devices, if any, do you have plugged into the serial port? I take it we are talking about RS232 serial port and ...
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