Frequency Divider [upd] — Verilog

endmodule

Here is an example of a counter-based frequency divider in Verilog:

A frequency divider can be implemented in Verilog using various techniques, including:

Then downstream modules use:

reg clk; reg rst; wire divided_clk;

Caveat: The divisor value must be ≥ 2 and stable during operation.

parameter DIVISION_RATIO = 5; // division ratio

Here's a simple example of a frequency divider in Verilog:

assign divided_clk = divided_clk_wire;

Word count ~1500 equivalent.

always @(posedge clk or posedge rst) begin if (rst) begin counter <= 0; end else begin counter <= counter + 1; if (counter >= DIVISION_RATIO - 1) begin counter <= 0; divided_clk <= 1'b1; end else begin divided_clk <= 1'b0; end end end

💡 If your FPGA has Phase-Locked Loops (PLLs) or Mixed-Mode Clock Managers (MMCMs), use them for frequency division whenever possible. Hardware-based dividers provide: Low jitter. Precise phase alignment. The ability to multiply as well as divide.

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Frequency Divider [upd] — Verilog

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Frequency Divider [upd] — Verilog

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