Forum Discussion
Altera_Forum
Honored Contributor
18 years agoJust a heads up - the ring is going to need to be pretty big to get down to 100MHz for Signal Tap sampling. Cyclone II reports this 25 cell path at 91MHz. This is a worst case guarantee, actual silicon speed will be faster.
--- module test (clk,out); input clk; output out; reg out; wire [24:0] stall /* synthesis keep */; assign stall[24:0] = {stall[23:0],out}; always @(posedge clk) begin out <= stall[24]; end endmodule