On 11.07.2010 02:54, David Brownell wrote:
Not "just" -- see the schematics, you'll notice a bunch of wiring needed to support SWD as an option in addition to JTAG.Some SWD signals are bidirectional, so a pure JTAG adapter is not going to handle SWD too.
This looks like only a 74xx125 is needed to convert any existing JTAG dongle to support SWD mode. Most of the switching can be omitted if you need only fixed JTAG to SWD conversion - if you need standard JTAG, you can just remove the adapter and use the existing FT2232 dongle as-is.
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