Hardware Design and Verification
This is tricky and generally we get confuse and think that req |-> ##[1:$] ack ; will give the correct result but this is not true The solution for this issue is module req_ack_sequential_checker(input bit clk,input bit req,input bit ack);bit error_flag ; // Error flag to indicate a protocol violationbit last_req_acknowledged ; // Flag to
How do you implement randc function using rand in system verilog ? Program : Understand the difference between randc and rand function rand : it is random number , it can be repeated. randc : it is random number with no repetition for a cycle. it may repeat once it complete one cycle. Lets
There are few things which is very important now a day which leads to have gate simulation. 1 Logic designs are not fully synchronous , for testing asynchronous design , gate level simulation models it accurately. 2. to check power up/reset operation of logic design. 3 to check x propagation testing , if there is
UVM test benches .. I tried covering few example , go through each Memory UVM testbench UVM testbench click here Synchronous FIFO UVM TESTBENCH UVM Testbench click here NORMAL ADDER UVM Tesbench UVM Testbench click here
How do we move from given specification to sign off for hardware Logic designer writes the specification for given design. Verification engineer goes through the specification provided by logic designer. He/She makes verification plan for the given specification of the logic design. Next step is to develop testbench. After developing testbench , it has to
implication operator as it name suggest it is something related to “the conclusion that can be drawn from something” same thing is valid for system verilog as well where can you use in SV , it will be used where you want certain things you want to constraint certain things based on certain value/expression/signal consider
When the size of the collection is unknown or the data space is sparse, an associative array is used, which does not have any storage allocated until it is used. That means, it is dynamically allocated, but has non-contiguous elements. Associative array’s index expression is not restricted to integral expressions, but can be of any
BLOCK DIAGRAM class seqItem extends uvm_sequence_item; `uvm_object_utils(seqItem) logic [8-1:0] rdata; logic wfull; logic rempty; rand logic [8-1:0] wdata; logic winc, wrst_n; logic rinc, rrst_n; function new (string name=”seqItem”); super.new(name); endfunction endclass
UVM is built on system verilog , so what ever UVM is doing underlying coding is SV So in general , lets take broader view with respect to ther language if you have heard of JAVA , and Hibernate Hibernate : is a framework built on java helps in managing data base beautifully , if
This system function searches the list of plusargs (like the $test$plusargs system function) for a user specified plusarg string , If the string is found, the remainder of the string is converted to the type specified in the user_string and the resulting value stored in the variable provided. like if($value$plusargs(“STRING=%s”,s)) $display(” GOT STRING cHAR “);
