Fix dclk as DFF trigger clock

Keyboard Sample Code/SevenSegment.v

@@ -11,17 +11,17 @@ module SevenSegment(
     
     always @ (posedge clk, posedge rst) begin
     	if (rst) begin
-    		clk_divider <= 15'b0;
+    		clk_divider <= 16'b0;
     	end else begin
-    		clk_divider <= clk_divider + 15'b1;
+    		clk_divider <= clk_divider + 16'b1;
     	end
     end
     
-    always @ (posedge clk_divider[15], posedge rst) begin
+    always @ (posedge clk, posedge rst) begin
     	if (rst) begin
     		display_num <= 4'b0000;
     		digit <= 4'b1111;
-    	end else begin
+    	end else if (clk_divider == {16{1'b1}}) begin
     		case (digit)
     			4'b1110 : begin
     					display_num <= nums[7:4];
@@ -44,7 +44,10 @@ module SevenSegment(
 						digit <= 4'b1110;
 					end				
     		endcase
-    	end
+		end else begin
+			display_num <= display_num;
+			digit <= digit;
+		end
     end
     
     always @ (*) begin