PWM代码 module pwm (

//INPUT
clk			,
rst		,

pwmout			

);

input clk,rst; output pwmout;

wire [7:0] pwmin; reg [7:0]pwmin; pwmpulse u1 ( .clk(clk) , .rst(rst) , .pwmin(pwmin), .pwmout(pwmout) ); assign pwmin = 8'd10; endmodule