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authorschodet2005-07-24 09:17:11 +0000
committerschodet2005-07-24 09:17:11 +0000
commit3410f6e649992bcac7674fdc8e282927fa09e3de (patch)
tree8cd9da5f904106b28ec2722e341fd2d3adb97bdf /n/asserv/src/counter/quad_filter.v
parentc3550a079957aa01633ed32632a5229ae4edb4c3 (diff)
Ajout des cartes asserv et du verilog pour le compteur.
Diffstat (limited to 'n/asserv/src/counter/quad_filter.v')
-rw-r--r--n/asserv/src/counter/quad_filter.v34
1 files changed, 34 insertions, 0 deletions
diff --git a/n/asserv/src/counter/quad_filter.v b/n/asserv/src/counter/quad_filter.v
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+++ b/n/asserv/src/counter/quad_filter.v
@@ -0,0 +1,34 @@
+`timescale 1ns / 1ps
+
+module quad_filter(clk, rst, q, qf);
+ input clk;
+ input rst;
+ input q;
+ output qf;
+
+ reg qf;
+ //reg [1:0] hist;
+
+
+ always @(posedge clk or negedge rst) begin
+ if (!rst) begin
+ qf <= 0;
+ //hist <= 2'b00;
+ end
+ else begin
+ /*
+ // Output filter logic.
+ if (hist[1] && hist[0])
+ qf <= 1;
+ else if (!hist[1] && !hist[0])
+ qf <= 0;
+ else
+ qf <= qf;
+ // Input buffer.
+ hist <= { hist[0], q };
+ */
+ qf <= q;
+ end
+ end
+
+endmodule