Changeset 92 for trunk/MultiChannelUSB

Timestamp:

Mar 12, 2010, 11:34:40 AM (15 years ago)

Author:

demin

Message:

delay result by one more clock

File:

• trunk/MultiChannelUSB/uwt_bior31.v (modified) (3 diffs)

trunk/MultiChannelUSB/uwt_bior31.v

@@ -15 +15 @@
         localparam      index2          =       2 << (L - 1);
         localparam      index3          =       3 << (L - 1);
-        localparam      peak_index      =       ((index3 + 1) >> 1) + 1;
+        localparam      index4          =       index3 + 1;
+        localparam      peak_index      =       ((index3 + 1) >> 1) + 2;
         localparam      peak_shift      =       ((L - 1) << 1) + (L - 1);
         localparam      zero            =       32'h80000000;
         
         // Tapped delay line
-        reg             [31:0]  tap [index3:0];
+        reg             [31:0]  tap [index4:0];
         
         reg             [31:0]  d_reg, d_next;
@@ -49 +50 @@
                         more_reg <= 1'b0;
 
-                        for(i = 0; i <= index3; i = i + 1)
+                        for(i = 0; i <= index4; i = i + 1)
                         begin
                                 tap[i] <= 0;
@@ -69 +70 @@
                         
                         // Tapped delay line: shift one
-                        for(i = 0; i < index3; i = i + 1)
+                        for(i = 0; i < index4; i = i + 1)
                         begin
                                 tap[i+1] <= tap[i];