This sequence randomly selects and executes a sequence from the sequencer¿s sequence library, excluding ovm_random_sequence itself, and ovm_exhaustive_sequence.
The ovm_random_sequence class is a built-in sequence that is preloaded into every sequencer’s sequence library with the name “ovm_random_sequence”.
The number of selections and executions is determined by the count property of the sequencer (or virtual sequencer) on which ovm_random_sequence is operating. See ovm_sequencer_base for more information.
| ovm_random_sequence | ||||||||
| This sequence randomly selects and executes a sequence from the sequencer¿s sequence library, excluding ovm_random_sequence itself, and ovm_exhaustive_sequence. | ||||||||
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| get_count | Returns the count of the number of sub-sequences which are randomly generated. | |||||||
function int unsigned get_count()
Returns the count of the number of sub-sequences which are randomly generated. By default, count is equal to the value from the sequencer’s count variable. However, if the sequencer’s count variable is -1, then a random value between 0 and sequencer.max_random_count (exclusive) is chosen. The sequencer’s count variable is subsequently reset to the random value that was used. If get_count() is call before the sequence has started, the return value will be sequencer.count, which may be -1.
This sequence randomly selects and executes each sequence from the sequencer’s sequence library once, excluding itself and ovm_random_sequence.
The ovm_exhaustive_sequence class is a built-in sequence that is preloaded into every sequencer’s sequence library with the name “ovm_exaustive_sequence”.
| ovm_exhaustive_sequence | ||||||||
| This sequence randomly selects and executes each sequence from the sequencer’s sequence library once, excluding itself and ovm_random_sequence. | ||||||||
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This sequence simply executes a single sequence item.
The item parameterization of the sequencer on which the ovm_simple_sequence is executed defines the actual type of the item executed.
The ovm_simple_sequence class is a built-in sequence that is preloaded into every sequencer’s sequence library with the name “ovm_simple_sequence”.
See ovm_sequencer #(REQ,RSP) for more information on running sequences.
| ovm_simple_sequence | ||||||||
| This sequence simply executes a single sequence item. | ||||||||
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This sequence randomly selects and executes a sequence from the sequencer¿s sequence library, excluding ovm_random_sequence itself, and ovm_exhaustive_sequence.
class ovm_random_sequence extends ovm_sequence #( ovm_sequence_item )
Returns the count of the number of sub-sequences which are randomly generated.
function int unsigned get_count()
Controls the flow of sequences, which generate the stimulus (sequence item transactions) that is passed on to drivers for execution.
class ovm_sequencer_base extends ovm_component
This sequence randomly selects and executes each sequence from the sequencer’s sequence library once, excluding itself and ovm_random_sequence.
class ovm_exhaustive_sequence extends ovm_sequence #( ovm_sequence_item )
This sequence simply executes a single sequence item.
class ovm_simple_sequence extends ovm_sequence #( ovm_sequence_item )
class ovm_sequencer #( type REQ = ovm_sequence_item, type RSP = REQ ) extends ovm_sequencer_param_base #(REQ, RSP)