Changeset 125 for sandbox/MultiChannelUSB

Timestamp:

Feb 21, 2011, 6:11:40 PM (14 years ago)

Author:

demin

Message:

reduce bit width of the amplification parameter

File:

• sandbox/MultiChannelUSB/deconv.v (modified) (6 diffs)

sandbox/MultiChannelUSB/deconv.v

@@ -9 +9 @@
                 input   wire                                            clock, frame, reset,
                 input   wire    [3*size*6-1:0]          del_data,
-                input   wire    [3*size*8-1:0]          amp_data,
+                input   wire    [3*size*4-1:0]          amp_data,
                 input   wire    [3*size*16-1:0]         tau_data,
                 input   wire    [3*size*width-1:0]      inp_data,
@@ -43 +43 @@
         wire    [size*width-1:0]        inp_data_wire [3:0];
 
-        reg             [size*8-1:0]            amp_data_reg, amp_data_next;
-        wire    [size*8-1:0]            amp_data_wire [2:0];
+        reg             [size*4-1:0]            amp_data_reg, amp_data_next;
+        wire    [size*4-1:0]            amp_data_wire [2:0];
 
         reg             [size*16-1:0]           tau_data_reg, tau_data_next;
@@ -58 +58 @@
                         assign inp_data_wire[1][j*width+width-1:j*width] = inp_data[(3*j+1)*width+width-1:(3*j+1)*width];
                         assign inp_data_wire[2][j*width+width-1:j*width] = inp_data[(3*j+2)*width+width-1:(3*j+2)*width];
-                        assign amp_data_wire[0][j*8+8-1:j*8] = amp_data[(3*j+0)*8+8-1:(3*j+0)*8];
-                        assign amp_data_wire[1][j*8+8-1:j*8] = amp_data[(3*j+1)*8+8-1:(3*j+1)*8];
-                        assign amp_data_wire[2][j*8+8-1:j*8] = amp_data[(3*j+2)*8+8-1:(3*j+2)*8];
+                        assign amp_data_wire[0][j*4+4-1:j*4] = amp_data[(3*j+0)*4+4-1:(3*j+0)*4];
+                        assign amp_data_wire[1][j*4+4-1:j*4] = amp_data[(3*j+1)*4+4-1:(3*j+1)*4];
+                        assign amp_data_wire[2][j*4+4-1:j*4] = amp_data[(3*j+2)*4+4-1:(3*j+2)*4];
                         assign tau_data_wire[0][j*16+16-1:j*16] = tau_data[(3*j+0)*16+16-1:(3*j+0)*16];
                         assign tau_data_wire[1][j*16+16-1:j*16] = tau_data[(3*j+1)*16+16-1:(3*j+1)*16];
@@ -127 +127 @@
                                 .lpm_pipeline(3),
                                 .lpm_widtha(width2),
-                                .lpm_widthb(8),
+                                .lpm_widthb(4),
                                 .lpm_widthp(width3)) mult_unit_2 (
                                 .clock(clock),
                                 .clken(int_wren_reg),
                                 .dataa(acc_data_reg[0][j*width2+width2-1:j*width2]),
-                                .datab(amp_data_reg[j*8+8-1:j*8]),
+                                .datab(amp_data_reg[j*4+4-1:j*4]),
                                 .result(mul_data_wire[1][j*width3+width3-1:j*width3]));
 
@@ -213 +213 @@
                         del_addr_reg <= 6'd0;
                         int_addr_reg <= 8'd0;
-                        amp_data_reg <= 8'd0;
+                        amp_data_reg <= 4'd0;
                         tau_data_reg <= 16'd0;
                         for(i = 0; i <= 2; i = i + 1)
@@ -272 +272 @@
                                 del_addr_next = 6'd0;
                                 int_addr_next = 8'd0;
-                                amp_data_next = 8'd0;
+                                amp_data_next = 4'd0;
                                 tau_data_next = 16'd0;
                                 for(i = 0; i <= 2; i = i + 1)