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RE: [ts-7000] Iridium Satellite modem + TS7260 timeouts on transmit

To: "" <>
Subject: RE: [ts-7000] Iridium Satellite modem + TS7260 timeouts on transmit
From: Darren Turner <>
Date: Wed, 7 Oct 2009 16:28:36 +1100
> I have a TS7260 and I am trying to send data via an Iridum satellite modem.  
> The modem is connected via serial cable to /dev/ttyAM0, I have moved the 
> serial console to /dev/ttyAM1 as per instructions and disabled getty on 
> /dev/ttyAM0.
>
> Using Minicom or Kermit to send data via zmodem or kermit protocol, to the 
> base computer (Debian PC box, also with Iridium modem attached) the session 
> will start but after a few blocks of data it will timeout and eventually 
> hangup.  This happens everytime not matter what I do with flow control or 
> speed settings.  If I try and send data to the TS7260 it works fine and the 
> modems also will work fine between to PC based Debian boxes running minicom 
> etc.
>
> So it seems I only have trouble if I am transmitting from the TS7260 
> /dev/ttyAM0 serial port, what is going on!!  I have spent weeks on this and 
> I'm running out of time as the boxes are to be deployed to Antarctica in a 
> couple of weeks!

Have you tried sending data to the TS board then having it reply?  Also, 
what kernel version and distro are you running on your ts-7260?
-----------------


Yes, data it sent to the TS board just fine, it is when it flows out the com 
port at a high rate that is seems to lock up and get timeouts.  Kernel 2.4 and 
running the ARM Debian distro on a SD card.

Cheers,
Darren




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