What are corner cases in verification?

What are corner cases in verification?

In engineering, a corner case (or pathological case) involves a problem or situation that occurs only outside of normal operating parameters—specifically one that manifests itself when multiple environmental variables or conditions are simultaneously at extreme levels, even though each parameter is within the specified …

How does UVM detect FIFO?

FIFO verification using UVM Testbench

1. FIFO full.
2. FIFO empty.
3. FIFO overflow.
4. FIFO underflow.
5. Reset recovery (If FIFO can be given soft reset).
6. Simultaneous read and write when FIFO is empty, FULL, half full, one entry in FIFO, one entry less than FULL.
7. If FIFO has near FULL and NEAR empty then validate that also.

Is a corner an edge?

A vertex is a corner. An edge is a line segment between faces. A face is a single flat surface.

How do I find a corner case?

How to check for corner cases?

1. Read the question atleast 3 times thoroughly.
2. Create your own test cases.
3. Use common sense to check for corner cases.
4. In case of debugging, use print statements to print our arrays, or whatever data structure you are using after each step.
5. Check for code thoroughly…

What is difference between synchronous and asynchronous FIFO?

FIFO has an input (write) port and an output (read) port. The basic difference between them is that the entire operation of synchronous FIFO is entirely dependent on the clock where as the write operation and read operation of asynchronous FIFO are asynchronous to each other.

Why TLM FIFO is used?

A FIFO element is required in between to store packets so that it allows both the sender and the receiver to independently operate. A TLM FIFO is placed in between testbench components that transfer data objects at different rates.

How do you write UVM testbench?

The verification testbench will be developed in UVM and has the following block diagram: The sequence generates a random stream of input values that will be passed to the driver as a uvm_sequence_item….It should be able to catch the following scenarios:

1. 011011011010.
2. 101011100.
3. 111011011.