ChipScope Pro Software and Cores User Guide
175
UG029 (v14.3) October 16, 2012
CseJtag Tcl Commands
::chipscope::csejtag_db get_irlength_for_idcode
This subcommand is used to get the
IR
length of a device in the database using the device
IDCODE
.
Syntax
::chipscope::csejtag_db get_irlength_for_idcode handle idcode
Arguments
Returns
A string containing the size of the
IR
(in bits).
An exception is thrown if the subcommand fails.
Example
Look in the database for the
IR
length of the device belonging to
IDCODE
01010101010101010101010101010101
.
%set irlen [::chipscope::csejtag_db get_irlength_for_idcode $handle
“01010101010101010101010101010101”]
Back to list of all CseJtag Tcl Commands
Table 5-43:
Arguments for Subcommand ::chipscope::csejtag_db
get_irlength_for_idcode
Argument
Type
Description
handle
Required
Handle to the session that is returned by
::chipscope::csejtag_session create
.
idcode
IDCODE
for the desired device.