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Old 03-28-2009, 05:19 AM   #1
siriyu
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Registered: Mar 2009
Posts: 4

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rxtx serial port event problems with usb adapter


My java application communicates with datalogger via rs232. Rxtx library works fine on *linux and windows system using serial port. The problems come when I use an usb* adapter* FTDI chip-set based (http://www.ftdichip.com/Products/Eva.../US232R-10.htm) on my lunux system (2.6.24 kernel), where there is no need of driver. On windows instead I have no problem. My program is event based; This adapter works correctly using Mincom. But in my program I use serialPort.notifyOnDataAvailable(true) and serialPort.notifyOnOutputEmpty(true)* calls.
My application send first message correctly but I get an error in response:
at gnu.io.RXTXPort.sendEvent(RXTXPort.java:732)
at gnu.io.RXTXPort.nativeDrain(Native Method)
at gnu.io.RXTXPort$SerialOutputStream.flush(RXTXPort.java:1201)

*If I comment flush() command after send first message I have no response and my time-out exceeds. It seems there are problems when generating SerialPortEvent.DATA_AVAILABLE event.
How can I resolve this problems ?
 
Old 03-28-2009, 06:19 AM   #2
reddazz
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Registered: Nov 2003
Location: N. E. England
Distribution: Fedora, CentOS, Debian
Posts: 16,298

Rep: Reputation: 77
Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate.
 
  


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