Jan 22, 2004 #1 S spauls Advanced Member level 2 Joined Dec 17, 2002 Messages 524 Helped 26 Reputation 52 Reaction score 9 Trophy points 1,298 Activity points 3,355 Can any body tells about how to proceed to make a state machine of a sequence detector , regards
Jan 23, 2004 #2 B bigrice Junior Member level 1 Joined Jul 20, 2002 Messages 18 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Location China Activity points 152 so easy problem.... search 'sequence detector' in google.
Feb 11, 2004 #3 C cnspy Full Member level 3 Joined Sep 10, 2002 Messages 150 Helped 5 Reputation 10 Reaction score 1 Trophy points 1,298 Activity points 1,041 somebody implemented it by fsm.
Jun 18, 2005 #4 T tom123 Advanced Member level 4 Joined Apr 4, 2005 Messages 116 Helped 5 Reputation 10 Reaction score 2 Trophy points 1,298 Activity points 2,338 Re: Sequence Detector use shift register and some logic is sufficient. for exampl, if you want to detect sequence 1011, you can use following verilog code to do it. wire signal_in; wire seq_detected; reg signal_d1, signal_d2, signal_d3; always @(posedge clk or negedge rst_n) if (~rst_n) begin signal_d1 <= #1 1'b0; signal_d2 <= #1 1'b0; signal_d3 <= #1 1'b0; end else begin signal_d1 <= #1 signal_in; signal_d2 <= #1 signal_d1 ; signal_d3 <= #1 signal_d2 ; end assign seq_detected = signal_d3 & (~signal_d2) & signal_d1 & signal_in; best regards spauls said: Can any body tells about how to proceed to make a state machine of a sequence detector , regards Click to expand...
Re: Sequence Detector use shift register and some logic is sufficient. for exampl, if you want to detect sequence 1011, you can use following verilog code to do it. wire signal_in; wire seq_detected; reg signal_d1, signal_d2, signal_d3; always @(posedge clk or negedge rst_n) if (~rst_n) begin signal_d1 <= #1 1'b0; signal_d2 <= #1 1'b0; signal_d3 <= #1 1'b0; end else begin signal_d1 <= #1 signal_in; signal_d2 <= #1 signal_d1 ; signal_d3 <= #1 signal_d2 ; end assign seq_detected = signal_d3 & (~signal_d2) & signal_d1 & signal_in; best regards spauls said: Can any body tells about how to proceed to make a state machine of a sequence detector , regards Click to expand...
Jun 20, 2005 #5 J jjww110 Full Member level 5 Joined Apr 19, 2005 Messages 255 Helped 8 Reputation 16 Reaction score 2 Trophy points 1,298 Location china Activity points 2,920 Sequence Detector simple by fsm
Jan 12, 2008 #6 M mpatel Member level 4 Joined Aug 25, 2005 Messages 71 Helped 10 Reputation 20 Reaction score 6 Trophy points 1,288 Location Germany Activity points 1,786 Re: Sequence Detector The answer is described nicely here **broken link removed**