can't connect GPSport 245 with BT747

[Achilleas Mantzios]

On 21/12/2016 13:51, Miroslav Lachman wrote:
> Achilleas Mantzios wrote on 2016/12/21 08:37:
>> On 21/12/2016 00:28, Miroslav Lachman wrote:
>>> I have Holux GPSport 245 (gps tracker). It uses USB connection with
>>> serial (COM) emulation. It worked on Windows with Java based
>>> application BT747 http://www.bt747.org/webinstall
>>> But I can't use it on my FreeBSD 10.3 based desktop PC (PC-BSD)
>>> I installed package comms/rxtx.
>>>
>>> Device is identified as
>>>
>>> kernel: ugen1.4: <Silicon Labs> at usbus1
>>> kernel: uslcom0: <CP2102 USB to UART Bridge Controller> on usbus1
>>>
>>> These devices are created under /dev/
>>>
>>>  ugen1.4
>>>
>>>  ttyU0.lock
>>>  ttyU0.init
>>>  ttyU0
>>>
>>>  cuaU0.lock
>>>  cuaU0.init
>>>  cuaU0
>>>
>>> BT747 cannot connect with this device. If I enabled "GPS connection
>>> debug" in settings I see this trace:
>
> [...]
>
>>>
>>>
>>> I don't know where ports should be configured for Java based
>>> applications.
>>>
>>> I tired to create symlinks like tty.usbserial@ -> cuaU0
>>> or ttyUSB0@ -> cuaU0 but BT747 still doesn't see any GPS device / port.
>>>
>>> Can somebody help me with this problem?
>>>
>>
>> Try to get pure serial output from the port before anything else. Unless
>> you are able to identify your port and do  :
>> # cat /dev/ttyXYZ
>> and see NMEA stream, then you won't succeed with any java (or other) app.
>
> It works, I can connect to the device. Just the java app cannot.
>
> > sudo cu -l /dev/cuaU0 -s 38400
> Password:
> Connected
> $GPGGA,003530.800,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*4E
> $GPGSA,A,1,,,,,,,,,,,,,,,*1E
> $GPGSV,1,1,00*79
> $GPRMC,003530.800,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*73
> $GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
> $GPGGA,003531.800,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*4F
> $GPGSA,A,1,,,,,,,,,,,,,,,*1E
> $GPGSV,1,1,00*79
> $GPRMC,003531.800,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*72
> $GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
> $GPGGA,003532.800,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*4C
> $GPGSA,A,1,,,,,,,,,,,,,,,*1E
>
>
> > sudo cu -l /dev/ttyU0 -s 38400
> Password:
> Connected
> $GPGGA,000044.799,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*44
> $GPGSA,A,1,,,,,,,,,,,,,,,*1E
> $GPGSV,1,1,00*79
> $GPRMC,000044.799,V,8960.0000,N,00000.0000,E,0.00,0.00,060180,,,N*79
> $GPVTG,0.00,T,,M,0.00,N,0.00,K,N*32
> $GPGGA,000045.799,8960.0000,N,00000.0000,E,0,0,,137.0,M,13.0,M,,*45
> $GPGSA,A,1,,,,,,,,,,,,,,,*1E
> $GPGSV,1,1,00*79
>
>
> I noticed that ttyU0 and cuaU0 are not accessible by my user so I changed permissions to 0666 but BT747 still don't see them:
>
> 24340 - isValidPort('/dev/cu.serial-0001')?: false -1
> 24341 - isValidPort('/dev/cu.SLAB_USBtoUART')?: false -1
> 24341 - isValidPort('/dev/cu.iBTAGPS-SPPslave')?: false -1
> 24341 - isValidPort('/dev/cu.usbmodem1b10')?: false -1
> 24341 - isValidPort('/dev/cu.usbmodem1d10')?: false -1
> 24341 - isValidPort('/dev/cu.usbmodem3d10')?: false -1
> 24342 - isValidPort('/dev/cu.usbmodem3a20')?: false -1
> 24342 - isValidPort('/dev/cu.usbmodem620')?: false -1
> 24342 - isValidPort('/dev/cu.usbmodemfd110')?: false -1
> 24342 - isValidPort('/dev/tty.usbmodemfd110')?: false -1
> 24342 - isValidPort('/dev/tty.usbmodemfd510')?: false -1
> 24344 - isValidPort('/dev/tty.usbserial')?: false -1
> Info: trying to open 'null'
>
> I don't know where these strange device names come from. If they are from rxtx package or BT747 itself and I don't know where to change them to /dev/cuaU0 or /dev/ttyU0

Some thoughts :
- tweak /etc/devfs.conf
- run your java app as root
- run gpsd so that you can connect as a normal TCPIP client, making your app portable to many platforms

>
> Miroslav LAchman


-- 
Achilleas Mantzios
IT DEV Lead
IT DEPT
Dynacom Tankers Mgmt