I dont have a EVK2 as reference. But I can send you a syslog file.
Thank you for your support.
Best regards
Christoph Eck
Hi,
I have a Starter kit board S3 does that help?
Best regards
Christoph Eck
No, it doesn’t help.
do you have the Telit Diagnostic port available?
have you installed correctly the USB drivers for Linux ?
do you have the Telit Diagnostic port available?
If the /dev/ttyUSB1 is the diagnostic port,Yes.
have you installed correctly the USB drivers for Linux ?
The USB driver is provided by the linux kernel correctly.
The command AT#REBOOT does exactly the same like we found in the syslog. An USB disconnect and connect.
GSM modem (1-port) converter now disconnected from ttyUSBX
…
GSM modem (1-port) converter now attached to ttyUSBX
Is there a situation you call internally AT#REBOOT, maybe because of an overheating or something else?
Thank you for your support
Sincerely
Christoph Eck
If some of you have the same issue. It is because of the PCI interface. Sometimes it breaks. So that is the reason why it disconnects and connects again.
Thread closed.
Thank you Christoph for noticing.
Hello All.
I am having a similar issue with a UL865 module, but when I went to the link you (Cosmin) mentioned:- http://www.telit.com/en/services/technical-forum/technical-forum.php?p_id=331&f_ac=thread&f_thread=745 I got a 404 Not found.
Thank you Cosmin. I think my issue is different so I will be posting a new thread with more details
Thank you Cosmin. I think my issue is different. First of all I am using a UL865-EUD module which is set in an embedded debian linux environment. The system has two USBs connecting 1) the UMTS module and 2) a battery voltage controller which periodically sends some data to the host cpu. If the battery voltage controller is disconnected, the Telit UL865 connects via GPRS for as long as necessary without the least problem. When I connect the battery voltage controller via USB, the Telit UL865 unregisters (/dev/ttyACM0-6 disappear) for a few seconds and then goes back on. Logging the situation doesn’t seem to help.
Script /etc/ppp/ip-up finished (pid 31841), status = 0x0
Now the modem is up and connecting. Then, asynchronously (sometimes delay is as long as 43 minutes later), when I execute a “cat” command to read the battery voltage controller, the modem goes down:-
Modem hangup
Connect time 43.1 minutes.
Sent 950517 bytes, received 444780 bytes.
Script /etc/ppp/ip-down started (pid 12639)
Connection terminated.
Script /etc/ppp/ip-down finished (pid 12639), status = 0x0
mer 3 mag 2017, 10.05.43, CEST Switching OFF the modem
It looks like there is some kind of confict between the ttyACM0 and the ttyUSB0. Do you think that this is a possibility? Do you have any suggestions? Thank you
HI,
could you please try to issue dmesg –clear, connect first your battery voltage controller, then connect Telit module and issue dmesg.
What ports are enumerated?
Please launch PPPD on /dev/ttyACM0 instead of Connect: ppp0 <–> /dev/modem
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Hi,
We are running the Telit Module
UC864-G under linux 2.6.34. We discover an usb disconnect and connect
again after 6 seconds during a ppp connection.
dmesg relevant log entries
————————————————-
[ 2.432258] usb 4-2: new full speed USB device using uhci_hcd and address 2
[ 2.647473] usb 4-2: New USB device found, idVendor=1bc7, idProduct=1004
[ 2.647491] usb 4-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=4
[ 2.647503] usb 4-2: Product: Telit HSDPA Wireless Modem
[ 2.647512] usb 4-2: Manufacturer: Telit Wireless Solutions
[ 2.647521] usb 4-2: SerialNumber: 000000000002
[ 2.654951] option 4-2:1.0: GSM modem (1-port) converter detected
[ 2.656083] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB0
[ 2.658679] option 4-2:1.1: GSM modem (1-port) converter detected
[ 2.659171] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB1
[ 2.661754] option 4-2:1.2: GSM modem (1-port) converter detected
[ 2.662304] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB2
[ 2.664653] option 4-2:1.3: GSM modem (1-port) converter detected
[ 2.665098] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB3
…
[78810.353209] usb 4-2: USB disconnect, address 2
[78810.355141] option: option_instat_callback: error -108
[78810.357450] option1 ttyUSB0: GSM modem (1-port) converter now disconnected
from ttyUSB0
[78810.357662] option 4-2:1.0: device disconnected
[78810.358350] option1 ttyUSB1: GSM modem (1-port) converter now disconnected
from ttyUSB1
[78810.358446] option 4-2:1.1: device disconnected
[78810.359456] option1 ttyUSB2: GSM modem (1-port) converter now disconnected
from ttyUSB2
[78810.359765] option 4-2:1.2: device disconnected
[78810.361544] option1 ttyUSB3: GSM modem (1-port) converter now disconnected
from ttyUSB3
[78810.361808] option 4-2:1.3: device disconnected
[78816.328044] usb 4-2: new full speed USB device using uhci_hcd and address 3
[78816.496330] usb 4-2: New USB device found, idVendor=1bc7, idProduct=1004
[78816.496433] usb 4-2: New USB device strings: Mfr=1, Product=2,
SerialNumber=4
[78816.496528] usb 4-2: Product: Telit HSDPA Wireless Modem
[78816.496618] usb 4-2: Manufacturer: Telit Wireless Solutions
[78816.496707] usb 4-2: SerialNumber: 000000000002
[78816.503639] option 4-2:1.0: GSM modem (1-port) converter detected
[78816.504205] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB0
[78816.506545] option 4-2:1.1: GSM modem (1-port) converter detected
[78816.507017] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB1
[78816.509607] option 4-2:1.2: GSM modem (1-port) converter detected
[78816.510029] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB4
[78816.512669] option 4-2:1.3: GSM modem (1-port) converter detected
[78816.513127] usb 4-2: GSM modem (1-port) converter now attached to ttyUSB5
Do you have a solution to fix this issue?
We are currently testing with a newer kernel 3.1.0. We haven’t any results yet.
Or is there a patch to solve this issue?
Have you also
encountered this problem in other normal
conditions except making the call(i.e. issuing other AT commands)?
We
additionally need the log data from the Linux kernel
Can you try
to do some tests on the other OS platform(i.e. on our EVK2) as the
reference, if possible?
Hi,
Maybe this issue has something to do with this issue http://www.telit.com/en/services/technical-forum/technical-forum.php?p_id=331&f_ac=thread&f_thread=745
I dont have a EVK2 as reference. But I can send you a syslog file.
Thank you for your support.
Best regards
Christoph Eck
Hi,
I have a Starter kit board S3 does that help?
Best regards
Christoph Eck
No, it doesn’t help.
do you have the Telit Diagnostic port available?
have you installed correctly the USB drivers for Linux ?
If the /dev/ttyUSB1 is the diagnostic port,Yes.
The USB driver is provided by the linux kernel correctly.
The command AT#REBOOT does exactly the same like we found in the syslog. An USB disconnect and connect.
Is there a situation you call internally AT#REBOOT, maybe because of an overheating or something else?
Thank you for your support
Sincerely
Christoph Eck
If some of you have the same issue. It is because of the PCI interface. Sometimes it breaks. So that is the reason why it disconnects and connects again.
Thread closed.
Thank you Christoph for noticing.
Hello All.
I am having a similar issue with a UL865 module, but when I went to the link you (Cosmin) mentioned:- http://www.telit.com/en/services/technical-forum/technical-forum.php?p_id=331&f_ac=thread&f_thread=745 I got a 404 Not found.
Here it is.
Thank you Cosmin. I think my issue is different so I will be posting a new thread with more details
Thank you Cosmin. I think my issue is different. First of all I am using a UL865-EUD module which is set in an embedded debian linux environment. The system has two USBs connecting 1) the UMTS module and 2) a battery voltage controller which periodically sends some data to the host cpu. If the battery voltage controller is disconnected, the Telit UL865 connects via GPRS for as long as necessary without the least problem. When I connect the battery voltage controller via USB, the Telit UL865 unregisters (/dev/ttyACM0-6 disappear) for a few seconds and then goes back on. Logging the situation doesn’t seem to help.
This is the log of modem.
Now the modem is up and connecting. Then, asynchronously (sometimes delay is as long as 43 minutes later), when I execute a “cat” command to read the battery voltage controller, the modem goes down:-
It looks like there is some kind of confict between the ttyACM0 and the ttyUSB0. Do you think that this is a possibility? Do you have any suggestions? Thank you
HI,
could you please try to issue dmesg –clear, connect first your battery voltage controller, then connect Telit module and issue dmesg.
What ports are enumerated?
Please launch PPPD on /dev/ttyACM0 instead of Connect: ppp0 <–> /dev/modem