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August 15th, 2011, 03:21 AM
#1
USB/Serial communication
Hi all,
I'm developing an application which communicates with 3 devices with RS232 output at the same time. Since there's only one serial port on my computer, i connect 2 of the devices on USB, with a transformer wire. It works fine for the device connected directly on the serial port, but by the others connected on USB, i usually lose some random characters of the message, sometimes the whole message is lost, though sometimes the whole message arrives. The same happens when i try to communicate with only one device at the same time. On Windows HyperTerminal, every message from every device arrives, with the same port settings.
Thx if anyone has any idea
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August 19th, 2011, 06:41 AM
#2
Re: USB/Serial communication
and how is this a java question
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August 19th, 2011, 11:15 AM
#3
Re: USB/Serial communication
![Quote](images/misc/quote_icon.png) Originally Posted by Blackmore
i usually lose some random characters of the message,
Make sure the driver is interrupt driven and that the handshaking works,
http://www.beyondlogic.org/serial/serial1.htm
http://en.wikibooks.org/wiki/Serial_...ng/Serial_Java
Last edited by nuzzle; August 19th, 2011 at 03:46 PM.
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