Re: [ts-7000] Re: RXTX receive problem

[al l <>]

Dear all,

I'm trying to connect a PC shell serial emulator (putty) to the COM2 connector of the TS 7880 board and I don't success. I have checked all the configuration parameters and the mailing list mesages, tried all I have thought and it is like COM2 doesn't exist!!! I copy some chekings I have done:

ls -l /dev

-rw-r--r-- 1 root root         5 Sep  1 02:26 ttAM1
-rw-r--r-- 1 root root         5 Sep  1 02:26 ttAm1
crw-rw-rw- 1 root tty     5,   0 Feb 18  2009 tty
crw------- 1 root tty     4,   0 Aug 31 03:43 tty0
crw------- 1 root root    4,   1 Sep  1 01:07 tty1
crw------- 1 root root    4,   2 Sep  1 01:07 tty2
crw------- 1 root root    4,   3 Sep  1 01:07 tty3
crw------- 1 root root    4,   4 Sep  1 01:07 tty4
crw------- 1 root root    4,   5 Sep  1 01:07 tty5
crw------- 1 root root    4,   6 Sep  1 01:07 tty6
crw------- 1 root tty     4,   7 Feb 18  2009 tty7
crw------- 1 root tty     4,   8 Sep  1 02:58 tty8
crw------- 1 root tty     4,   9 Feb 18  2009 tty9
crwxr-xr-x 1 root root  204,  16 Mar 16  2006 ttyAM0
-rw-r--r-- 1 root root         5 Sep  1 02:35 ttyAM1
-rw-r--r-- 1 root root         5 Sep  1 02:35 ttyAS1
crw------- 1 root tty     4,  64 Sep  1 03:17 ttyS0
-rwxrwxrwx 1 root root        34 Sep  1 02:58 ttyS1

So it seems ttyS1 ie COM2 exists....

ps aux

root       715  0.0  0.9   2948  1208 ttyS0    Ss   03:08   0:00 /bin/login --
root       716  0.0  1.2   2956  1544 ttyS0    S    03:08   0:00 -bash
www-data   720  0.0  1.6  14228  2064 ?        S    03:08   0:00 /usr/sbin/apach
www-data   721  0.0  1.9 235648  2528 ?        Sl   03:08   0:00 /usr/sbin/apach
www-data   723  0.0  1.9 235648  2536 ?        Sl   03:08   0:00 /usr/sbin/apach
root       786  0.0  0.7   2476   936 ttyS0    R+   03:19   0:00 ps aux

So it seems that console is in ttyS0 ie COM1

nano /etc/inittab

#1:2345:respawn:/sbin/getty 38400 tty1
#2:23:respawn:/sbin/getty 38400 tty2
#3:23:respawn:/sbin/getty 38400 tty3
#4:23:respawn:/sbin/getty 38400 tty4
#5:23:respawn:/sbin/getty 38400 tty5
#6:23:respawn:/sbin/getty 38400 tty6

T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100
#T1:23:respawn:/sbin/getty -L ttyS1 115200 vt100

So it seems that console is in ttyS0 and ttyS1 is free!!

If I do: ts7800:~# echo hola > /dev/ttyS0 It prints hola in ttyS0 (just where I am ie my shell serial emulator) so it seems that ttyS0 is console.

If I do:

ts7800:~# echo hola > /dev/ttyS1
ts7800:~# echo hola > /dev/ttyAM1
ts7800:~# echo hola > /dev/ttyAS1

nothing!!!!

ts7800:~# echo hola > /dev/ttyAM0  
-bash: /dev/ttyAM0: No such device or address  It doesn't exist...

As you can see it is like COM2 doesn't exist!!!!

I have checked serial bus cable and it is ok.... (red line just on the board dot) I am using TS manufactured cable.... so....

I am lost..... I have no more ideas....

Would you be so gratefull to help me with this???

thanks!!

---

De: Jeremy Freeman <>
Para:
Enviado: jueves, 30 de julio, 2009 1:07:15
Asunto: Re: [ts-7000] Re: RXTX receive problem

 

We had similar problems trying to compile rxtx on our 7800. What I ended up doing was switching to using EABI root filesystem and installing the precompiled rxtx from the Debian repository. Debian keeps the EABI (armel) binaries far more up to date than the arm binaries. It works perfectly and have been running it in production for 5 months now.

Word of caution, do not use high serial IO and SD card writes at the same time as myself and others on here experienced frequent lockups.

--
J

---

From: al l <albi_sevilla@ yahoo.es>
To: .com
Sent: Wednesday, July 29, 2009 2:31:10 PM
Subject: Re: [ts-7000] Re: RXTX receive problem

 

Hi Carlos,

 

I cannot help you about the information you are asking me because in fact I couldn´t load correctly my aplications which use rxtx library. When I try to start my java aplication I receive allways the same error:  It says that it is unable to find librxtxSerial. so library, but when I indicate it with -Djava.library. path option or with LD_LIBRARY_PATH enviroment variable I don´t success, (of course locating my librxtxSerial. so in all the directories where System can try to find it.... I have check all the posibilities) .  Because of this I am trying to compile by my own librxtxSerial. so library to be sure that tha one I have is the correct.. in fact in my PC runs perfectly)

 

Do you know how to help me??? 

 

PD: Maybe is an Operating System problem??? I am usind the last one Debian version for the TS7800 board.

 

 

thanks

---

De: ramos.carlos76 <ramos.carlos76@ yahoo.com>
Para: .com
Enviado: miércoles, 29 de julio, 2009 21:31:14
Asunto: [ts-7000] Re: RXTX receive problem

 

Hi,

what is the port how you use to rxtx and port of your console?
The program detect serial ports?

--- In ts-7000%40yahoogroups.com, al l <albi_sevilla@ ...> wrote:
>
> Hi,
>
> Could anybody help me to crosscompile gnu rxtx.org libraries?? Maybe telling me ./configure parameters or giving me the librxtxSerial. so file... I have downloaded the librxtxSerial. so file for arm-unknown- linux versions but it doesn´t run in my TS7800.
>
> thanks in advance!!
>
>
>
>
> ____________ _________ _________ __
> De: tedapt <>
> Para: .com
> Enviado: miércoles, 22 de julio, 2009 19:10:53
> Asunto: [ts-7000] Re: RXTX receive problem
>
>  
> That would be (as root or prepending sudo):
>
> ln -s /dev/ttyAM0 /dev/ttyS0
>
> --- In .com, "ramos.carlos76" <ramos.carlos76@ ...> wrote:
> >
> >
> > Because I can determine the avaialable bytes to read, I think the serial
> > port ttyAM0 is correct...
> >
> > How you create a symbolic link from /dev/ttyAM0 to /dev/ttyS0?
> >
> > I can read 4 lines with readline(), however the program show the
> > exception and stop reading the serial port.
> >
> >
> > --- In .com, "tedapt" <tedapt@> wrote:
> > >
> > > Are you certain of the serial ports names? I run rxtx on TS7260 and
> > TS7250s, and found I had to create a symbolic link from /dev/ttyAM0 to
> > /dev/ttyS0. As I recall, rxtx relied on a hardcoded reference to
> > /dev/ttyS0, and my attempts to use the TS boards' /dev/ttyAM0 was being
> > ignored by rxtx. I had to create the /dev/ttyS0 sym link as an alias to
> > the TS serial device and used it instead.
> > >
> > > --- In .com, "ramos.carlos76" ramos.carlos76@
> > wrote:
> > > >
> > > >
> > > > Hey everyone,
> > > >
> > > > I'm using rxtx with the java. The program in my pc (windows
> > > > xp) works without problems, but in ts7390 have errors.
> > > >
> > > > When start the
> > > > program (jamvm -Dgnu.io.rxtx. SerialPorts= /dev/ttyAM0: /dev/ttyAM1
> > -jar
> > > > program.jar) show this warning:RXTX Warning:Removing stale lock
> > file.
> > > > /var/lock/LCK. .ttyAM0
> > > >
> > > > I can send files and ask the available bytes to
> > > > receive, but if read the inputStream appears the
> > > > exception:java. io.IOException: Input/output error in nativeavailable
> > > >
> > > > It is
> > > > the size of inputStream the ts is very small? have any idea?
> > > >
> > > > Thanks for
> > > > any help pointing me in the right direction!
> > > >
> > > > Carlos
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > --- In .com, "ramos.carlos76" <ramos.carlos76@ >
> > > > wrote:
> > > > >
> > > > > Hey everyone,I'm using rxtx with the java. The program in my pc
> > > > (windows
> > > > > xp) works without problems, but in ts7390 have errors.When start
> > the
> > > > > program (jamvm -Dgnu.io.rxtx. SerialPorts= /dev/ttyAM0: /dev/ttyAM1
> > -jar
> > > > > program.jar) show this warning:RXTX Warning: Removing stale lock
> > file.
> > > > > /var/lock/LCK. .ttyAM0I can send files and ask the available bytes
> > to
> > > > > receive, but if read the inputStream appears the
> > > > > exception:java. io.IOException: Input/output error in
> > nativeavailableIt
> > > > is
> > > > > the size of inputStream the ts is very small? have any idea?Thanks
> > for
> > > > > any help pointing me in the right direction!Carlos
> > > > >
> > > >
> > >
> >
>

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