report_clock_transfers (::quartus::sta)

The following table displays information for the report_clock_transfers Tcl command:

Tcl Package and Version

Belongs to ::quartus::sta 1.0

Syntax report_clock_transfers [-h | -help] [-long_help] [-append] [-file <name> ] [-hold] [-panel_name <name> ] [-recovery] [-removal] [-setup] [-stdout]
Arguments -h | -help Short help
-long_help Long help with examples and possible return values
-append If output is sent to a file, this option appends the result to that file. Otherwise, the file will be overwritten. This option is not supported for HTML files.
-file <name> Sends the results to an ASCII or HTML file. Depending on the extension
-hold Creates a clock transfer summary for hold analysis
-panel_name <name> Sends the results to the panel and specifies the name of the new panel
-recovery Creates a clock transfer summary for recovery analysis
-removal Creates a clock transfer summary for removal analysis
-setup Creates a clock transfer summary for setup analysis
-stdout Send output to stdout, via messages. You only need to use this option if you have selected another output format, such as a file, and would also like to receive messages.
Description
Generates a timing report table showing all clock transfers (i.e.,
data paths between one clock domain and another clock domain).  The
from and to clocks are shown as well as the number of paths for each
transfer: RR, RF, FR, FF.  An RF transfer, for example, occurs when
the source register of path is clocked by the rising edge of its clock
and the destination register is clocked by the falling edge of its
clock.

The report also indicates what clock transfers are cut ("false paths")
by set_clock_groups or clock-to-clock set_false_path commands.  For
transfers that are not cut, the number of paths reported does not take
into account paths cut by path-specific set_false_path commands.
Actual path counts may be lower than reported.

The report can be directed to the Tcl console ("-stdout", default), a
file ("-file"), the TimeQuest graphical user interface
("-panel_name"), or any combination of the three.

The -setup, -hold, -recovery, and -removal options determine the
analysis type of the report, particularly the reporting of false_paths
that apply to only one analysis type.  If you do not specify any of
these options, a report is generated for each analysis.
Example Usage
project_open top
create_timing_netlist -skip_dat
report_clock_transfers -panel_name
delete_timing_netlist
project_close
Return Value Code Name Code String Return
TCL_OK 0 INFO: Operation successful
TCL_ERROR 1 ERROR: Timing netlist does not exist. Use create_timing_netlist to create a timing netlist.
TCL_ERROR 1 ERROR: Netlist must be updated. Run update_timing_netlist