Rsepected All,
I found that there are many senior & well rich (by knowledge) engineers/ scientists exist over here in this forum. So I thought to take a chance to share my doubt in area of UVM as a student.
I understand that I may not be even competant upto your level or you may find my doubt as silly. But your guidance & help is highly expected to my studies.
A portion of code I have pasted below. Can anybody please guide me that what exactly this code means (especially run phase) ?
I expect that senior/junior fellow in a group will justify my humble request.
Thanks,
Code :
function void ram_scoreboard::memory_write(wr_xtn wd);
if(wd.write)
begin
ref_data[wd.addr] = wd.data;
end
endfunction : memory_write
//------- memory_read() method -------//
function bit ram_scoreboard::memory_read(ref rd_xtn rd);
if(rd.read)
begin
if(ref_data.exists(rd.addr))
begin
rd.data = ref_data[rd.addr] ;
return(1);
end
else
begin
return(0);
end
end
endfunction : memory_read
//----------------- run() phase -------------------//
task ram_scoreboard::run_phase(uvm_phase phase);
fork
forever begin
fifo_wrh.get(wr_data);
memory_write(wr_data);
end
forever begin
fifo_rdh.get(rd_data);
check_data(rd_data);
end
join
endtask
//Explore method check_data
function void ram_scoreboard::check_data(rd_xtn rd);
rd_xtn ref_xtn;
// Copy of read XTN
$cast( ref_xtn, rd.clone());
if(mem_read(ref_xtn))
begin
//compare
if(rd.compare(ref_xtn))
begin
`uvm_info(get_type_name(), $sformatf("Scoreboard - Data Match successful"), UVM_MEDIUM)
end
else
`uvm_error(get_type_name(), $sformatf("\n Scoreboard Error [Data Mismatch]: \n Received Transaction:\n %s \n Expected Transaction: \n %s",rd.sprint(), ref_xtn.sprint()))
end
else
uvm_report_info(get_type_name(), $psprintf("No Data written in the address=%d \n %s",rd.addr, rd.sprint()));
endfunction
