Re: [ts-7000] RTAI and serial

[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: ronis_br <>
Para:
Enviado: jueves, 13 de agosto, 2009 23:08:32
Asunto: [ts-7000] RTAI and serial

 

Hi,

I need to use RTAI to make a task periodic.

This task will send a package by COM2 and will receive the ACK.

The problem is: I can communicate with the device on COM2 with no problems, but when I use RTAI on my program the functions that I have used to do it doesn't work anymore.

I read about the module rtai_serial. o but it just doesn't work. I can't even open the serial when I'm using it.

Can anyone help me?

Thanks,
Ronan.

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