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samd: timeout when connecting to samc21 #1663

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koendv opened this issue Oct 30, 2023 · 2 comments
Open

samd: timeout when connecting to samc21 #1663

koendv opened this issue Oct 30, 2023 · 2 comments
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Potential Bug A potential, unconfirmed or very special circumstance bug
Milestone
v2.0 release

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@koendv
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koendv commented Oct 30, 2023

Attached the bmda output when connecting to an atsamc21.
blackmagic -tv 5 was run twice.
The first time there is a 2 second delay; the second time response is instantaneous.
log.txt
@dragonmux dragonmux added this to the v2.0 release milestone Oct 30, 2023
@dragonmux dragonmux added the Potential Bug A potential, unconfirmed or very special circumstance bug label Oct 30, 2023
@dragonmux
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Interesting.. both succeeded, despite the warning about failing to halt the CPU.

Our bad though that we said -v 5 and should have asked for -v 29 so we get the full ADIv5 conversation - could you recapture the two traces at this higher verbosity level please?

@koendv
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koendv commented Oct 30, 2023

OK. blackmagic -tv 29, run twice. Log attached.
log2.txt

samd.c has some routines that look like workarounds for errata.. e.g. "Only required for SAM D20 Revision B Silicon". samc21 errata are here.

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