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COM PORTS
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- Re: COM PORTS
COM PORTS
12-05-2010 6:50 PM
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Is it possible for a COM port to be closed & if so where in the registery would you go to open it.
My problem is that I am trying to update some software on my DVD player (Humax PVR)
Have got the necessary files and a USB to RS232 Null cable to transfer the software.
The cable shows up in the COM port as USB-serial CH340 (COM 3) but in no way will it try to transfer the file.
I Have been on the Humax website, Digital Spy & AV forums but have come to the conclusion the problem rests with my computer.
Drivers came with the cable and there are no yellow or red flags in Device manager.
Anyone got any ideas ?
Using Windows XP
My problem is that I am trying to update some software on my DVD player (Humax PVR)
Have got the necessary files and a USB to RS232 Null cable to transfer the software.
The cable shows up in the COM port as USB-serial CH340 (COM 3) but in no way will it try to transfer the file.
I Have been on the Humax website, Digital Spy & AV forums but have come to the conclusion the problem rests with my computer.
Drivers came with the cable and there are no yellow or red flags in Device manager.
Anyone got any ideas ?
Using Windows XP
We are born into history and history is born into us.
4 REPLIES 4
Re: COM PORTS
12-05-2010 6:58 PM
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What software are you using that is accessing the port?
(that could be the limitation if it will only access "real" serial ports)
(that could be the limitation if it will only access "real" serial ports)
Re: COM PORTS
12-05-2010 7:24 PM
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Looks like a few people have had problems with similar CH340 units getting the correct drivers , have you seen this ?
http://www.davesdrivers.com/forum/showthread.php?tid=130&page=5
http://www.davesdrivers.com/forum/showthread.php?tid=130&page=5
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Re: COM PORTS
12-05-2010 8:06 PM
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I'm amazed to see something still being sold with an RS232 port - I thought they had been phased out years ago. They were always temperamental and awkward when used for instrument control.
Re: COM PORTS
14-05-2010 4:35 PM
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Have given up on the CH 340 and ordered a prolific chip set so hopefully that will do the trick.
No option about using the Com port as the DVD has a RS 232 connection (what a nightmare)
No option about using the Com port as the DVD has a RS 232 connection (what a nightmare)
We are born into history and history is born into us.
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