摘要： /*自己做的PWM程序*2014-01-09*/module pwm(clk,rst,led);input clk,rst;output [7:0] led;parameter T=31'd2000000;parameter C=31'd200_0;reg [31:0] cnt;reg [31:0] pul;reg on;always @ (posedge clk or negedge rst)if(!rst)begincnt<=0;pul<=0;endelse if(T==cnt)begincnt<=0;pul<=pul+100;if(pul==C)p 阅读全文