This document describes the software debuggers that can be used to effectively debug Excalibur?devices via the ByteBlasterMV?or MasterBlaster?download cable from Altera?  The debuggers interface to the target via JTAG, using either a stub or a remote debug interface.  The procedure for connecting to Excalibur devices is given below for the following debuggers:?    Insight?    AXD梩he ARM?extended debugger?    XRAY……