How many clock pulses will be generated for the given Verilog code?

This code generates HIGH output for 8 clock cycles as it detects positive edge of enable (as it seems to be what the problem asks).

How do you count in Verilog?

The zeros in the input vector will not change the sum, and effectively we get the sum as the number of ones in the vector. ones = 0; //initialize count variable. for(i=0;i<16;i=i+1) //for all the bits. ones = ones + A[i]; //Add the bit to the count.

How do you make a counter in Verilog?

Electronic Counter Example

module counter (input clk, // Declare input port for the clock to allow counter to count up.
input rstn, // Declare input port for the reset to allow the counter to be reset to 0 when required.
output reg[3:0] out); // Declare 4-bit output port to get the counter values.

How do you create a pulse in Verilog?

one pulse code in verilog O/p of the first flip flop goes as input to the second and the output of the second goes as I/p clear to the first, take o/p from the o/p of the first flip flop, this will be a single cycle pulse.

What is the width of time register?

Time: A special time register data type is used in verilog to store simulation time. Width is application specific ;but atleast 64 bits.

How do you always block in Verilog?

Verilog always block

always @ (event) [statement] always @ (event) begin [multiple statements] end.
// Execute always block whenever value of “a” or “b” change always @ (a or b) begin [statements] end.
// Execute always block at positive edge of signal “clk” always @ (posedge clk) begin [statements] end.

What is Verilog code?

Verilog is a Hardware Description Language; a textual format for describing electronic circuits and systems. Applied to electronic design, Verilog is intended to be used for verification through simulation, for timing analysis, for test analysis (testability analysis and fault grading) and for logic synthesis.

What does a counter do in Verilog?

Counters use sequential logic to count clock pulses. You can implicitly implement a counter with a Register Inference. The Quartus II software can infer a counter from a Conditional (“If-Else”) Statement that specifies logic that adds or subtracts a value from the signal or register.

What is 4-bit counter?

The SN74HC163 is a 4-bit binary counter. This mode of operation eliminates the output counting spikes normally associated with synchronous (ripple-clock) counters. A buffered clock (CLK) input triggers the four flip-flops on the rising (positive-going) edge of the clock waveform.

How to make such a clock counter in Verilog HDL?

So whenever you reach to 256, then your 17th bit of current_cnt will be 1, which means that your next_cnt should be 0. In all other cases, your next count should be +1. The “multiple driver” error arises from trying to modify a signal from different processes / always blocks. You shouldn’t do this.

How to send a packet every n clock cycles in Verilog?

For example these: In your combinatorial section always @ (*) you have to assign a value to every variable in every state. If not you get latches. One way to do that is what you do with next_state and next_count: set a default value at the top. But then it is also good practice to document that it is a default value which will be changed later.

When does the tick go high in Verilog?

When the fast input is low, the output tick is high for one cycle every 150 ms (every 7500000 cycles) The clk period is 20ns. If the fast input is high, tick should go high for one cycle every other clock cycle.

Can you change the value of Counter Switch in two always statements?

You can’t change the value of counter_switch in two different always statements. You need to do that within the same always block.

How many clock pulses will be generated for the given Verilog code?