Support alternate SWD pins via vendor command #1104
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Hi there, we have found it useful to use multiple sets of SWD pins with our ATSAM3U2C-based debug probes in our HITL setup, where we have multiple targets wired up to the same HIC to save on system cost. This feature allows using a vendor command to configure which SWD pins are used by the HIC. We can't talk to multiple targets at the same time (SWD pin selection is mutually exclusive) but this at least allows talking to one at a time without requiring an external multiplexer or changing the copper.
This could probably also be ported to other HICs; we implemented support only on ATSAM3U2C.