ChipScope Pro Software and Cores User Guide www.xilinx.com 161
UG029 (v14.3) October 16, 2012
CseJtag Tcl Commands
::chipscope::csejtag_tap get_device_idcode
This subcommand returns the 32-bit IDCODE for a given device in the current JTAG chain.
If the device does not support the
IDCODE instruction, a null string is returned.
Note: The JTAG target must be locked by using the ::chipscope::csejtag_target lock
subcommand before calling this subcommand. Also, the device count must be set prior to calling this
subcommand using the
::chipscope::csejtag_tap set_device_count.
Syntax
::chipscope::csejtag_tap get_device_idcode handle deviceIndex
Arguments
Returns
A 32-character string of ones and zeros representing the 32-bit IDCODE of the device.
An exception is thrown if the subcommand fails.
Example
Get the IDCODE of the device at index 0
%set idcode [::chipscope::csejtag_tap get_device_idcode $handle 0]
Back to list of all CseJtag Tcl Commands
Table 5-33: Arguments for Subcommand ::chipscope::csejtag_tap
get_device_idcode
Argument Type Description
handle
Required
Handle to the session that is returned by
::chipscope::csejtag_session create.
deviceIndex Device index (0 to n-1) in the n-length JTAG chain.