Hi,
Am 18.06.2014 04:58, schrieb Jens Bauer:

>
> If I select transport (on the command-line) before I choose interface...
> $ openocd -c "transport select swd" -f interface/dummy.cfg
> ... I get this error:
> Error: Debug adapter doesn't support any transports?
When "transport select .." is executed, there is no debugger yet. Error
message is a bit misleading here.

>
> If I select transport after I choose interface...
> $ openocd -f interface/dummy.cfg -c "transport select swd"
> ...I get this error:
> Error: session's transport is already selected.
>
> (The same happens when I use for instance 
> interface/ftdi/jtag-lock-pick_tiny_2.cfg)
>
> How am I expected to select transport; eg. what's the intended way ?

Many debuggers have only JTAG as transport - you cannot select a
transport is this case. Dummy is one of them.
You select a transport this way:

openocd -f interface/vsllink.cfg -c "transport select swd" -f target/lpc1768.cfg

But this example requires a patched vsllink driver (see gerrit) - the
default one does not support SWD IIRC.

-- J. Fischer



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