Select which of the supported transports to use in this OpenOCD session.
The transport must be supported by the debug adapter hardware and by the
version of OPenOCD you are using (including the adapter's driver).
-No arguments: print selected transport..
+No arguments: returns name of session's selected transport.
@end deffn
@subsection JTAG Transport
@section Other NAND commands
@cindex NAND other commands
-@deffn Command {nand check_bad_blocks} [offset length]
+@deffn Command {nand check_bad_blocks} num [offset length]
Checks for manufacturer bad block markers on the specified NAND
device. If no parameters are provided, checks the whole
device; otherwise, starts at the specified @var{offset} and
@xref{Running}.
@end deffn
-@deffn Command fast (@option{enable}|@option{disable})
-Default disabled.
-Set default behaviour of OpenOCD to be "fast and dangerous".
-
-At this writing, this only affects the defaults for two ARM7/ARM9 parameters:
-fast memory access, and DCC downloads. Those parameters may still be
-individually overridden.
-
-The target specific "dangerous" optimisation tweaking options may come and go
-as more robust and user friendly ways are found to ensure maximum throughput
-and robustness with a minimum of configuration.
-
-Typically the "fast enable" is specified first on the command line:
-
-@example
-openocd -c "fast enable" -c "interface dummy" -f target/str710.cfg
-@end example
-@end deffn
-
@deffn Command echo message
Logs a message at "user" priority.
Output @var{message} to stdout.
mini-IC is marked valid, which makes the CPU fetch all exception
handlers from the mini-IC, ignoring the code in RAM.
-OpenOCD currently does not sync the mini-IC entries with the RAM
-contents (which would fail anyway while the target is running), so
-the user must provide appropriate values using the @code{xscale
-vector_table} command.
+To address this situation, OpenOCD provides the @code{xscale
+vector_table} command, which allows the user to explicity write
+individual entries to either the high or low vector table stored in
+the mini-IC.
It is recommended to place a pc-relative indirect branch in the vector
table, and put the branch destination somewhere in memory. Doing so
.long real_fiq_handler
@end example
+Alternatively, you may choose to keep some or all of the mini-IC
+vector table entries synced with those written to memory by your
+system software. The mini-IC can not be modified while the processor
+is executing, but for each vector table entry not previously defined
+using the @code{xscale vector_table} command, OpenOCD will copy the
+value from memory to the mini-IC every time execution resumes from a
+halt. This is done for both high and low vector tables (although the
+table not in use may not be mapped to valid memory, and in this case
+that copy operation will silently fail). This means that you will
+need to briefly halt execution at some strategic point during system
+start-up; e.g., after the software has initialized the vector table,
+but before exceptions are enabled. A breakpoint can be used to
+accomplish this once the appropriate location in the start-up code has
+been identified. A watchpoint over the vector table region is helpful
+in finding the location if you're not sure. Note that the same
+situation exists any time the vector table is modified by the system
+software.
+
The debug handler must be placed somewhere in the address space using
the @code{xscale debug_handler} command. The allowed locations for the
debug handler are either (0x800 - 0x1fef800) or (0xfe000800 -
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