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[Uisp-dev] [AVR-GCC-LIST] OT: STK500 programming slowdown?

From: Matthias Ringwald
Subject: [Uisp-dev] [AVR-GCC-LIST] OT: STK500 programming slowdown?
Date: Mon, 2 Dec 2002 22:00:13 +0100


today, my stk500 has slowed down significantly.

did someone experience this problem, too?
did someone found a cause for it?

it just happened to me. I didn't do any hardware or software changes in the meantime. I'm working on mac os x using uisp(cvs 20020626) and windows with the avr studio 4. its slow on both machines.
its also not related to the target.
so I have 2 computers, 1 stk500, several targets. its about 10 times slower than before ( 3 minutes for a 50 K program)
so it looks like the stk500 is bad.

any ideas ?


 matthias ringwald

thats an old posting describing the same problem, but no answer.. it was jsut cured.
Never mind; this problem seems to have gone away after rebooting the host
PC.  Very weird.

-- jm

> Has anyone encountered a problem with their STK-500 that causes the
> programming process (either via AVR Studio or the command-line stk500
> utility) to slow down by a factor of 4 or 5X?
> The other day, I accidentally shorted the V+ supply on one of the 10-pin
> headers to ground.  Afterwards, the STK500 still works fine but
> is excruciatingly slow.  It's as if the board is no longer capable of
> whatever high-speed serial communication it normally uses for programming,
> but is falling back to something like 1200 baud

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