How create mutiple uvm_component instances of uvm_component array?

[mrforever]

Hi, experts

 

Now there is one class config_monitor extends from uvm_component. The env has the array which stores config_monitor type. Now I want to create all the element instances in the array, when I do it as follows, the VCS reported one UVM_FATAL.

 

-->The codes:

...

config_monitor cfg_mon[PORT_NUM];

...

// new cfg_mon

    foreach(cfg_mon) begin

       cfg_mon = config_monitor::type_id::create("cfg_mon", this);

    end

....

 

-->UVM_FATAL:

UVM_FATAL /EDA_Tools/synopsys/vcs1209/etc/uvm-1.1/uvm-1.1c/src/base/uvm_component.svh(1750) @ 0: cfg_mon [CLDEXT] Cannot set 'cfg_mon' as a child of 'uvm_test_top.env.cfg_agt', which already has a child by that name.

 

The UVM_FATAL means that the elements of cfg_mon array cann't have the same name when 

they are created. How can I create all the intances of cfg_mon array? By the way, I don't want to create all the instances each by each manually as follows:

   cfg_mon[0] = config_monitor::type_id::create("cfg_mon0", this);

   cfg_mon[1] = config_monitor::type_id::create("cfg_mon1", this);

   cfg_mon[2] = config_monitor::type_id::create("cfg_mon2", this);

 

Thanks in advance!

 

Best regards

mrforever

[apfitch]

Could you use

 

cfg_mon[i] = chpp_config_monitor::type_id::create($sformatf("cfg_mon%0d",i), this);

 

I haven't tested it...

 

Alan

[mrforever]

Could you use

 

 

cfg_mon[i] = chpp_config_monitor::type_id::create($sformatf("cfg_mon%0d",i), this);

 

I haven't tested it...

 

Alan

 

Yes, I have found it. It works well. Thanks, Alan.

[vani.priya]

Is it possible to assign particular address to each instance ?

 

 

Thanks in advance 

[David Black]

What do you mean by assigning an address to each instance? If you are saying that your config_monitor class has an address attribute to be initialized there are several approaches.

1. Using the same loop for creation, you could on the next line put something like: 

cfg_mon[i].address = base+1024*i;

2. Or if more appropriate, you could place config objects into the uvm_config_db indexed by the unique instance name.

uvm_config_db#(TYPE).set(this,$sformatf("cfg_mon%0d",i),"address",base+1024*i);