From: Keith O. <kso...@gm...> - 2006-02-21 18:21:24
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I came across this and thought that it might be of interest to some of you: http://www.merl.com/publications/TR2003-035/ -- Keith Olson K-Soft Consulting |
From: Alexandre P. N. <al...@om...> - 2006-02-21 18:32:46
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Keith Olson escreveu: > I came across this and thought that it might be of interest to some of > you: > http://www.merl.com/publications/TR2003-035/ > Wow, I didn't know that was possible ... my mind is on production now :-) Very cool, thank you for the tip! Alexandre |
From: Keith O. <kso...@gm...> - 2006-02-21 18:35:30
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Alexandre Pereira Nuns wrote: >Keith Olson escreveu: > > > >>I came across this and thought that it might be of interest to some of >>you: >>http://www.merl.com/publications/TR2003-035/ >> >> >> > >Wow, I didn't know that was possible ... my mind is on production now :-) > >Very cool, thank you for the tip! > >Alexandre > > You're very welcome. Now if I could only figure out why /I/ didn't receive my own email.....<G> -- Keith Olson K-Soft Consulting |
From: Nicholas <che...@ho...> - 2006-02-21 20:46:57
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For some reason, recently whilst using my Gumstix, I have lost the ability to connect to the device via Bluetooth. The virtual COM port keeps disappearing, or whilst in Hyperterminal, it says that another telephony device is using the port. I am getting the error: hci_cmd_task: hci0 command tx timeout This keeps repeating itself whilst I am logged in via the serial connection. I know this is something to do with Bluetooth, but I do not know how to stop this message appearing and how to be able to re-establish the virtual connection again. |
From: Craig H. <cr...@gu...> - 2006-02-22 20:45:26
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On Feb 21, 2006, at 12:46 PM, Nicholas wrote: > For some reason, recently whilst using my Gumstix, I have lost the > ability > to connect to the device via Bluetooth. The virtual COM port keeps > disappearing, or whilst in Hyperterminal, it says that another > telephony > device is using the port. I am getting the error: > > hci_cmd_task: hci0 command tx timeout > > This keeps repeating itself whilst I am logged in via the serial > connection. > I know this is something to do with Bluetooth, but I do not know > how to stop > this message appearing and how to be able to re-establish the virtual > connection again. That happens when for some reason the HCI protocol between the gumstix and the bluetooth module has failed. The only way to reset it is to restart the bluetooth layer completely; HCI doesn't really have a recovery mechanism in it other than "restart from scratch". So do this from the gumstix console: /etc/init.d/S30bluetooth stop /etc/init.d/S30bluetooth start That should repair things. C |
From: Peter D. <plo...@gm...> - 2006-02-22 22:16:25
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On 2/21/06, Nicholas <che...@ho...> wrote: > For some reason, recently whilst using my Gumstix, I have lost the abilit= y > to connect to the device via Bluetooth. The virtual COM port keeps > disappearing, or whilst in Hyperterminal, it says that another telephony > device is using the port. I am getting the error: > > hci_cmd_task: hci0 command tx timeout > > This keeps repeating itself whilst I am logged in via the serial connecti= on. > I know this is something to do with Bluetooth, but I do not know how to s= top > this message appearing and how to be able to re-establish the virtual > connection again. > Nicholas, The bluetooth on my Gumstix works way better when accessed from linux. Maybe because both ends are using bluez and rfcomm.. I dunno. It's cleaner and I haven't had one disconnection since I installed ubuntu on an old laptop. Im not a ms basher, but the way windows handles it, I was up to COM37 for the bt serial port, because of the disconnecting/reconnecting of the usb dongle made a new com port every time. it's plain ugly. =20 hyperterm would fail to print a newline after some console output lines across the bluetooth link, which would overwrite the last line, where kermit or minicom never do that. hyperterm also has very deceptive scrollback history that seems to pull from overwritten memory addresses. If you plan on using the bluetooth much, i'd use linux. -peter |