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[ts-7000] Watchdogs with the SD-Card

To:
Subject: [ts-7000] Watchdogs with the SD-Card
From: "Frank Pagliughi" <>
Date: Mon, 27 Oct 2008 14:19:29 -0000
Hey All,

We're using a TS-7260 as a remote data logger, and writing the data to
the SD card. The problem is that, occasionally, the commit-to-flash
locks up the system for longer than the 8-sec watchdog timeout. (I
assume the SDCard driver is disabling interrupts for very long periods
of time)

So the board resets at the worst possible moment - right in the middle
of a disk commit.

One idea is to occasionally disable the watchdog, force a disk sync,
then re-enable the watchdog. This might kind-of work, but doesn't seem
100%, feels like a hack, and I don't like turning the watchdog off and
on a lot.

Does anyone have a better idea?

Thanks,
Frank


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