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> ] [-multi_corner] [-nworst <number> ] [-panel_name <name> ] [-stdout] [ <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
-multi_corner When set, running this command with the -panel option will create a folder containing versions of this report for multiple operating conditions. This option has no effect when used with the -stdout or -file options.
-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
-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.
<targets> Registers or ports
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 I/O edge rate limits for clock ports and minimum period
restrictions for RAM and DSP registers.  Output clock ports (e.g.,
source synchronous clocks) require generated clocks in order to check
I/O edge rate limits for those those ports.

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
Example Usage
project_open top

# 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