URL
https://opencores.org/ocsvn/blue/blue/trunk
Subversion Repositories blue
[/] [blue/] [trunk/] [blue8/] [baud.v] - Rev 3
Go to most recent revision | Compare with Previous | Blame | View Log
// // BAUD.v // // www.cmosexod.com // 4/13/2001 (c) 2001 // Jeung Joon Lee // // This is the "baud-rate-genrator" // The "baud_clk" is the output clock feeding the // receiver and transmitter modules of the UART. // // By design, the purpose of the "baud_clk" is to // take in the "sys_clk" and generate a clock // which is 16 x BaudRate, where BaudRate is the // desired UART baud rate. // // Refer to "inc.h" for the setting of system clock // and the desired baud rate. // module baud( sys_clk, sys_rst_l, baud_clk ); `include "inc.h" input sys_clk; input sys_rst_l; output baud_clk; reg [CW-1:0] clk_div; reg baud_clk; always @(posedge sys_clk or negedge sys_rst_l) if (~sys_rst_l) begin clk_div <= 0; baud_clk <= 0; end else if (clk_div == CLK_DIV) begin clk_div <= 0; baud_clk <= ~baud_clk; end else begin clk_div <= clk_div + 1; baud_clk <= baud_clk; end endmodule
Go to most recent revision | Compare with Previous | Blame | View Log