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(gdb.info)Nindy Options

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Options for Nindy
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   These are the startup options for beginning your GDB session with a
Nindy-960 board attached:

`-r PORT'
     Specify the serial port name of a serial interface to be used to
     connect to the target system.  This option is only available when
     GDB is configured for the Intel 960 target architecture.  You may
     specify PORT as any of: a full pathname (e.g. `-r /dev/ttya'), a
     device name in `/dev' (e.g. `-r ttya'), or simply the unique
     suffix for a specific `tty' (e.g. `-r a').

`-O'
     (An uppercase letter "O", not a zero.)  Specify that GDB should use
     the "old" Nindy monitor protocol to connect to the target system.
     This option is only available when GDB is configured for the Intel
     960 target architecture.

          _Warning:_ if you specify `-O', but are actually trying to
          connect to a target system that expects the newer protocol,
          the connection fails, appearing to be a speed mismatch.  GDB
          repeatedly attempts to reconnect at several different line
          speeds.  You can abort this process with an interrupt.

`-brk'
     Specify that GDB should first send a `BREAK' signal to the target
     system, in an attempt to reset it, before connecting to a Nindy
     target.

          _Warning:_ Many target systems do not have the hardware that
          this requires; it only works with a few boards.

   The standard `-b' option controls the line speed used on the serial
port.