In addition to semihosting, Nu-Link provides another debugging mechanism without
affecting the target’s real time behavior. By using standard debug port SWD, It
doesn’t need any additional output pins except ICE pins. The only requirement is
that the target application should reserve a buffer space (hereinafter referred to as
InfoBlock) in SRAM in order to store control settings and communicate I/O data
between NuConsole and target
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