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UVM
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UVM Coverage

UVM 6946
#uvm 279
rag123
rag123
Full Access
235 posts
April 22, 2021 at 11:57 pm

Hi,

1) What is the right syntax for defining bins in coverage for enum? The below syntax doesnt seem to compile.

typedef enum {READ, WRITE} kind_e;
 
 READ_WRITE: coverpoint trans.apb_cmd {
    bins apb_cmd [] = {[trans.apb_cmd.first:trans.apb_cmd.last]};
  }
 
2) If i manually declare the bins as like below and if i dont issue any read transaction my coverage still shows 100%. Can anyone point me what is wrong here?
 
https://edaplayground.com/x/WVnJ
 
bins apb_cmd [] = {[0:1]};

Replies

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chr_sue
chr_sue
Full Access
3992 posts
April 23, 2021 at 2:42 am

In reply to rag123:

Your testbench works perfectly Even without running the read sequence you get 100% functional cobverage.
Look to your monitor. I was adding in your diagnostic message in the monitor the apb_cmd and this shows your are sending also READ to the coverage. You have to modify your monitor.
See how it works here
https://edaplayground.com/x/7k7m

Akshay Kumar
Akshay Kumar
Forum Access
2 posts
July 04, 2021 at 6:24 am

Hii, i am new to this UVM i want to know about what does coverage do and how to get good coverage if i have 32 bit address and 32 bit data and how many packets need to be send

Akshay Kumar
Akshay Kumar
Forum Access
2 posts
July 04, 2021 at 6:30 am

once check this code if anything wrong
https://www.edaplayground.com/x/sVTt

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