serial port not working on laptop..

marko · Post by **marko** » Sat Sep 25, 2010 12:07 am

any computer pro's in here? i'm trying to get my UCS PRO to work with my laptop but my serial port is not having any of it, the UCS is fine and connects to my desktop pc straight away so i know it's not the processor or cable. tried matching com ports up but still no luck, the laptop is an old dell d600 i bought specifically because it has a serial port for diagnostics

any help/suggestions would be great!

Mark.

Post by **Eric D** » Sat Sep 25, 2010 6:05 am

I would turn off the FIFO buffers. I believe you do that by opening the device manager, find the serial port and go to its advanced options then look for something you can uncheck. I believe the FIFO buffers are enabled by default, so they will probably be on.

I have had issues like this many times while interfacing RS232 to industrial controls, and CNC machines.

marko · Post by **marko** » Sat Sep 25, 2010 6:06 am

Eric D wrote:I would turn off the FIFO buffers. I believe you do that by opening the device manager, find the serial port and go to its advanced options then look for something you can uncheck. I believe the FIFO buffers are enabled by default, so they will probably be on.

I have had issues like this many times while interfacing RS232 to industrial controls, and CNC machines.

will try that later, thanks

marko · Post by **marko** » Sat Sep 25, 2010 6:27 am

just tried it with no luck at all

bretti_kivi · Post by **bretti_kivi** » Sat Sep 25, 2010 8:00 am

is the speed on the serial port set correctly?

marko · Post by **marko** » Sat Sep 25, 2010 8:03 am

bretti_kivi wrote:is the speed on the serial port set correctly?

as low as it'll go, i copied the settings from the desktop pc to laptop, desktop ok, laptop not.. unfotunetly i can't sit in the car tuning with a desktop, keyboard and monitor on my laps

marko · Post by **marko** » Sun Oct 03, 2010 1:30 am

anyone else have some input on this?

longboard · Post by **longboard** » Sun Oct 03, 2010 1:45 am

have you tried another laptop its possible yours has a issue on the port?

marko · Post by **marko** » Sun Oct 03, 2010 1:55 am

longboard wrote:have you tried another laptop its possible yours has a issue on the port?

no, well i have 2 laptops, my main one i'm using now that only has usb's and a 2nd laptop i bought just for the ucs programme as it has a serial port.

both no luck but connects straight away on my desktop, didn't even have to go into device manager..

is the F1 gear the same? i may have to down grade (

) to alpine if i have no luck with the ucs

tonym · Post by **tonym** » Sun Oct 03, 2010 6:27 am

Im betting its an OS problem...even if it works on the same OS on a dif computer...

marko · Post by **marko** » Sun Oct 03, 2010 6:30 am

fixed it with new adapter i just bought today, still not sure why the laptop's serial port won't work but at least i got there in the end

thanks guys