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List:       openocd-development
Subject:    [Openocd-development] A real question about tap states
From:       oyvind.harboe () zylin ! com (=?ISO-8859-1?Q?=D8yvind_Harboe?=)
Date:       2009-05-30 8:21:45
Message-ID: c09652430905300121pecbe15dm9f8adca9ced3fc15 () mail ! gmail ! com
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On Tue, May 26, 2009 at 12:21 AM, Magnus Lundin <lundin at mlu.mine.nu> wrote:
> To move the discussion onto something that miqht require a bit o f real
> analysis:
>
> Why does some targets ?work better during "reset halt" ?when ?the
> TAP_RESET-> IR_SHIFT is ?B8(0011000,7) ?instead of ?B8(0011011,7) .
>
> And the hard question: why does the first variant work for the ft2232
> driver when the JLink driver needs the second, for the same target.
>
> I have recently tried so many variants that my head is spinning.

Perhaps it is a red herring?

Could it be a bug in the lower levels that is hidden by using a
slightly different sequence?

Have you tried with a bitbang adapter?





-- 
?yvind Harboe
Embedded software and hardware consulting services
http://consulting.zylin.com


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