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

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Subject: [ts-7000] Re: Iridium Satellite modem + TS7260 timeouts on transmit
From: "Charles" <>
Date: Wed, 07 Oct 2009 14:11:34 -0000
Hi Darren --
--- In  Darren Turner <> wrote:

> 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
>

There have been quite a few reports of lockups when people try to do 
simultaneous serial IO and SD writes, such as logging experiment data to the SD 
card; you can find more info in the archives.  Maybe somebody with direct 
experience will jump in here ...

As a test, can you set up the board to boot & run from an NFS rootfs?  That 
would eliminate the SD card IO from the equation.  If that works, it's 
obviously not a solution for you but would narrow the cause of the problem.  
Perhaps you could set up a ramdisk for /var for example, and run the SD card 
readonly.

Also I would contact TS support if you haven't already, as this forum is only 
volunteer users, outside of TS.  

regards, ........... Charlie



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