pls provide me verilog code for led rotate on fpga

Hi,

You can achieve it with simple ring counter and delay logic.

For more information refer below logic or you can google it.

//To create the frequencies needed:
// Input clock is 25 kHz, chosen arbitrarily.
// Formula is: (25 kHz / 100 Hz * 50% duty cycle)
// So for 100 Hz: 25,000 / 100 * 0.5 = 125
//operate the below logic from requried clock        
 if(clr==1)           
            q<=4′b1000;      
 else            begin                
            q[3]<=q[0];                
            q[2]<=q[3];               
            q[1]<=q[2];                
            q[0]<=q[1];            
 end

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Best Regards,

Anand Raj Shankar

(This message was posted on behalf of Intel Corporation)

​

Hi,

Above code is not complete, you have to complete.

1. Have you inserted clock?
2. At what frequency your design works?
3. What is not working in above code?

You need to work with Modelsim first and try to understand coding.​

// Quartus Prime Verilog Template
// One-bit wide, N-bit long shift register
 
module basic_rot_register 
(
	input clk, enable,
	input sr_in,
	output sr_out
);
 
	// Declare the rotate register
	reg [3:0] sr;
   reg [23:0] count=0;
	reg clk_out=1'b0;
	// Shift everything over, load the incoming bit
	always @ (posedge clk_out)
	begin
		if (enable == 1'b1)
			sr<=4'b1000;
		else
		begin
			sr[3:1] <= sr[2:0];
			sr[0] <= sr[3];
		end
	end
 
	// Catch the outgoing bit
	assign sr_out = sr;
	
always @(posedge clk) begin
   count <= count + 1;
   if(count == 10000000)//5hz
   begin
      count<=0;
      clk_out <= !clk_out;
   end
end
 
endmodule

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Best Regards,

Anand Raj Shankar

(This message was posted on behalf of Intel Corporation)

thanks for reply but given code not working i tried it on google but