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Honored ContributorHow to display 4 numbers on 7 segmnet in verilog
Hi everybody!
I'm write a program to display 4 number(6,7, 8,9) on 7seg of Cyclone III FPGA Development Board its image here (http://www.altera.com/products/devkits/altera/kit-cyc3.html) My purpose is to display 4 numbers(6,7,8,9) on board. But I only can display all 4 numbers that only 1 number 9. I tried many methods but the result could display as I could. EVERYBODY HELP ME IN VERILOG? HOW I CAN DISPLAY 4 NUMBERS ON 4 SEGMENT? My code: module Led (clkin_50,cpu_resetn,m1,m2,m3,m4,a,b,c,d,e,f, g,dp); input clkin_50, cpu_resetn; reg [3:0] state; reg [6:0] number; output m1, m2, m3, m4, a, b, c, d, e, f, g, dp; assign {m4, m3, m2, m1} = state; assign {a, b, c, d, e, f, g} = number; assign dp = 1; always @ (posedge clkin_50) if (cpu_resetn == 0) state <= 4'b0000; else state <= 4'b0001;// select a led to display always @ (posedge clkin_50) if (cpu_resetn == 0) number <= 0; else number <= 7'b0000100; Display 7 number on 7seg endmodule1 Reply
Altera_ForumYou need a look-up table to determine which of the 7 segments to turn on or off depending on the number you want to display, and use the m1 to m4 signals to select which digit you want to control. By switching fast enough between those 4 digits you'll give the illusion that all 4 are on simultaneously.
