report_min_pulse_width (::quartus::sta)

Tcl Package and Version

Syntax

report_min_pulse_width [-h | -help] [-long_help] [-append] [-detail <summary|full_path> ] [-file <name> ] [-nworst <number> ] [-panel_name <name> ] [-show_routing] [-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 is 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

-show_routing

Option to display detailed routing in the path report

-split_by_corner

When set, running this command with the -panel option creates 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 or latch clock pin.  A failed minimum pulse
width check indicates that the register or latch may not recognize the clock
transition.  Each node in the design is reported twice per clock
for minimum pulse width checks: once for the high pulse and once for
the low pulse. While registers and latches may have a pulse width requirement
greater than zero, other nodes are checked to ensure the pulse does
not collapse entirely.

A minimum period check verifies that the clock period ("Period") is
large enough for the device to operate.  Minimum period checks apply
to registers and latches.

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

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> `]` `[-show_routing]` `[-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 is 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
	`-show_routing`		Option to display detailed routing in the path report
	`-split_by_corner`		When set, running this command with the -panel option creates 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 or latch clock pin. A failed minimum pulse width check indicates that the register or latch may not recognize the clock transition. Each node in the design is reported twice per clock for minimum pulse width checks: once for the high pulse and once for the low pulse. While registers and latches may have a pulse width requirement greater than zero, other nodes are checked to ensure the pulse does not collapse entirely. A minimum period check verifies that the clock period ("Period") is large enough for the device to operate. Minimum period checks apply to registers and latches. 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