Led Blink Verilog code for Cora-Z7-07S

[amilashanaka]

module led_blink (
    input wire clk,       // Clock input (typically 100 MHz)
    output reg led0_g        // Output to LED
);

    // Parameter for clock division
    parameter integer DIVISOR = 50000000; // Adjust based on clock frequency (100 MHz -> 1 Hz blink)

    reg [31:0] counter;   // 32-bit counter

    always @(posedge clk) begin
    
            if (counter == DIVISOR - 1) begin
                counter <= 32'b0;  // Reset counter
                led0_g <= ~led0_g;       // Toggle LED
            end else begin
                counter <= counter + 1;  // Increment counter
            end
        end
  

endmodule
 

 

 

## This file is a general .xdc for the Cora Z7-07S Rev. B
## To use it in a project:
## - uncomment the lines corresponding to used pins
## - rename the used ports (in each line, after get_ports) according to the top level signal names in the project

# PL System Clock
set_property -dict { PACKAGE_PIN H16   IOSTANDARD LVCMOS33 } [get_ports { clk }]; #IO_L13P_T2_MRCC_35 Sch=sysclk
create_clock -add -name sys_clk_pin -period 8.00 -waveform {0 4} [get_ports { clk }];#set

# RGB LEDs
set_property -dict { PACKAGE_PIN L15   IOSTANDARD LVCMOS33 } [get_ports { led0_b }]; #IO_L22N_T3_AD7N_35 Sch=led0_b
set_property -dict { PACKAGE_PIN G17   IOSTANDARD LVCMOS33 } [get_ports { led0_g }]; #IO_L16P_T2_35 Sch=led0_g
set_property -dict { PACKAGE_PIN N15   IOSTANDARD LVCMOS33 } [get_ports { led0_r }]; #IO_L21P_T3_DQS_AD14P_35 Sch=led0_r
set_property -dict { PACKAGE_PIN G14   IOSTANDARD LVCMOS33 } [get_ports { led1_b }]; #IO_0_35 Sch=led1_b
set_property -dict { PACKAGE_PIN L14   IOSTANDARD LVCMOS33 } [get_ports { led1_g }]; #IO_L22P_T3_AD7P_35 Sch=led1_g
set_property -dict { PACKAGE_PIN M15   IOSTANDARD LVCMOS33 } [get_ports { led1_r }]; #IO_L23N_T3_35 Sch=led1_r

# Buttons
set_property -dict { PACKAGE_PIN D20   IOSTANDARD LVCMOS33 } [get_ports { btn[0] }]; #IO_L4N_T0_35 Sch=btn[0]
set_property -dict { PACKAGE_PIN D19   IOSTANDARD LVCMOS33 } [get_ports { btn[1] }]; #IO_L4P_T0_35 Sch=btn[1]