But when I involve a USB connected serial port (which I have to do if
I undock my laptop) I get all kinds of strange errors, basically no
communications at all! I have two different ones but both are
problematic (ATEN RS232USB and SUNIX 4-port ComHub).
Do you know of any problems related to SynaSer via USB connected RS232
adapters on Windows7 or WindowsXP?
Right now I am moving the Lazarus application around to different
computers (real and virtual) and different COM ports (real or USB
connected) to try to figure out why it is so hard making it always
work. And this is when I found that I tried ports that were already
reserved for the virtual machine or actually unplugged without
SdpoSerial saying anything about it....
Dont know if its any help at all, but I am also having serial port
problems using USB adaptors.
I am developing under Ubuntu using synaser and have found that I can
only connect to the port about once every 5 or so trys.
Cant say if it is directly related SynaSer/ USB adaptor though, as I
dont have an onboard one to test against.
side notes -
if I use 'serial port terminal' it connects every time.
if I use 'cat /dev/ttyUSB0 > /tmp/test.txt' it tends to not connect more
than it connects (similar to synaser)
Suggests it may be necessary to 'reset' the port somehow before using
I have a small sample program for testing if anybody wants it
SteveG
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