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event questions from newbie

Dear Sir/Madam: I am a newbie of verification and specman. I have a question about EVENT in specman e: Can I create a event with is consisted of some other event, such as event CONSISTED_e = (@start_e or @stop_e or @clock_rise)? If it is possible, how could identify which is the cause of the CONSISTED_e in code? For example: my_method () @CONSISTED_e is { if (CONSISED_e is caused by @start_e) { // do something }; if (CONSISTED_e is caused by @(stop_e) { // DO SOMETHING }; and so on. Thanks.

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Hilmar over 15 years ago

Hi,

To answer your syntax question: Yes, you can declare events as combinations and/or sequences of other events.

The methodology question has a number of different options, depending on personal preferences. You can define actions to happen on the occurance of an event, e.g.:

on stop_e {
   message(HIGH, "I got a stop event");
};

For your method, you could do something along these lines:

my_tcm()@c_e is {
    first of {
       {
   sync @start_e;
   message(HIGH,"Got a start_e event");
};
       {
   sync @stop_e;
   message(HIGH,"Got a stop_e event");
};
       {
   sync @clk_e;
   message(HIGH,"Got a clk_e event");
};

    };
};

The benefit of this that the method will see two events as well.

Cheers,
Hilmar
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Reply

Hilmar over 15 years ago

Hi,

To answer your syntax question: Yes, you can declare events as combinations and/or sequences of other events.

The methodology question has a number of different options, depending on personal preferences. You can define actions to happen on the occurance of an event, e.g.:

on stop_e {
   message(HIGH, "I got a stop event");
};

For your method, you could do something along these lines:

my_tcm()@c_e is {
    first of {
       {
   sync @start_e;
   message(HIGH,"Got a start_e event");
};
       {
   sync @stop_e;
   message(HIGH,"Got a stop_e event");
};
       {
   sync @clk_e;
   message(HIGH,"Got a clk_e event");
};

    };
};

The benefit of this that the method will see two events as well.

Cheers,
Hilmar
Cancel
Vote Up 0 Vote Down

Cancel

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