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Re: [avr-chat] Avrdude and JTAG / Dragon...


From: David Kelly
Subject: Re: [avr-chat] Avrdude and JTAG / Dragon...
Date: Sat, 28 Feb 2009 23:15:02 -0600


On Feb 28, 2009, at 1:06 AM, Joerg Wunsch wrote:

David Kelly <address@hidden> wrote:

I understand that JTAg, thanks to its very nature, allows to chain
devices, allowing to talk with any one dvice from a single JTAG port.

In practice I don't think the Dragon supports that.

Of course, it does.  We aren't in MSP430 land here...  (From what I've
heard, MSP430 has a crippled and incomplete JTAG implementation that
doesn't allow chaining.)

I remember looking for that Once Upon A Time and didn't find it. I stand corrected.

I have had situations where the combination of Dragon and target board seemed to be ultra sensitive to the cable used between. Where I thought the 6" cable worked and the 9" was not reliable.

--
David Kelly N4HHE, address@hidden
========================================================================
Whom computers would destroy, they must first drive mad.







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