uvm phasing problem

[jishnu.de]

Hi all,

I am runnig into an issue in UVM Phasing.

I have an agent which is incorporating the new UVM Phases of configure_phase and main_phase. In configure i am configuring VIP and in main_phase run tasks are called.

I have a Driver which runs on run_phase as i want it to run always and do not want any effect for phase jumping.

There is a uvm_event in the driver which is triggered everytime sequence_item_port gets in run_phase.

I am waiting for this event in main_phase of the agent.

I see the uvm_event is getting triggered but this trigger is not read in agent. The uvm event is global a property of driver and not local to run_phase.

If I change the main_phase of agent to run_phase then this event trigger is read.

I am clueless

Thanks

Jishnu

[amitrana]

Hi Jishnu,

for wait process use wait_ptrigger(), to sense the event in the current time value,it removes the race condition ,between triggeriing process and waiting process

[jishnu.de]

Hi Amit,

I am using wait_ptrigger.

It is not a race condition issue.

The wait_ptrigger doesnot work in main_phase but work if i make it run_phase.

Regards

Jishnu

[amitrana]

Hi Jishnu,

Are you rasing and droping objection from main_phase.

Plz use objection in main phase.

[jishnu.de]

No i have not. The main_phase has an infinite loop. So i cannot raise objection.

[amitrana]

Hi Jishnu,

You can raise the objection from sequence,for example in sequence you can do like that in pre_body

if(starting_phase !=null)

starting_phase.raise_objection(starting_phase)

and in post_body drop the objection.

[ZeusXylon]

between triggeriing process and waiting process

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