report_min_pulse_width (::quartus::sta)

The following table displays information for the report_min_pulse_width Tcl command:

Tcl Package and Version

Belongs to ::quartus::sta 1.0

Syntax report_min_pulse_width [-h | -help] [-long_help] [-append] [-detail <summary|full_path> ] [-file <name> ] [-nworst <number> ] [-panel_name <name> ] [-split_by_corner] [-stdout] [-type <all|min_period|clock_pulse> ] [ <targets> ]
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.
-detail <summary|full_path> Option to determine how much detail should be shown in the report
-file <name> Sends the results to an ASCII or HTML file. Depending on the extension
-nworst <number> Specifies the number of pulse width checks to report (default=1)
-panel_name <name> Sends the results to the panel and specifies the name of the new panel
-split_by_corner When set, running this command with the -panel option will create a folder containing versions of this report for selected multiple operating conditions. This option has no effect when used with the -stdout or -file options.
-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.
-type <all|min_period|clock_pulse> Option to determine the minimum pulse width analysis type
<targets> Either clocks or nodes such as ports and registers.
Description
Reports the results of minimum pulse width and minimum period checks.

A minimum pulse width check verifies that a clock high ("High") or low
("Low") pulse sustains long enough to qualify as a recognizable change
in the clock signal at a register clock pin.  A failed minimum pulse
width check indicates that the register may not recognize the clock
transition.  Each register in the design is reported twice per clock
for mininum pulse width checks: once for the high pulse and once for
the low pulse.

A minimum period check verifies that the clock period ("Period") is
large enough for the device to operate.  Minimum period checks apply
to many types of resources in the FPGA device.

The results of the minimum pulse width checks can be output to the 
Tcl console ("-stdout," the default), a report panel ("-panel"), 
a file ("-file"), or a combination of the three.

Results are sorted from worst-case slack to best-case slack.  To limit
the number of checks reported, use the "-nworst" option.

Results can be shown in summary ("-detail summary") or in detail
("-detail full_path," the default), showing the path details for the
clock arrival times and how they affect the actual pulse width.

The value of the targets is either a collection or a Tcl list of
wildcards used to create a collection of the appropriate type.
The values used must follow standard Tcl or Timing Analyzer-extension
substitution rules.  See the help for use_timing_analyzer_style_escaping for
details.
Example Usage
project_open top
create_timing_netlist
read_sdc
update_timing_netlist

# Report the worst 100 minimum pulse width checks
report_min_pulse_width -nworst 100

# Report minimum pulse width checks for the register test_reg[*]
report_min_pulse_width test_reg[*]

# Output the previous results to a report panel and a file.
report_min_pulse_width -panel_name "Min Pulse (test_reg)" test_reg[*]

# Output the previous results to a file.
report_min_pulse_width -file min_pulse_test_reg.txt test_reg[*]
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: Report database is not open