Changeset 148 for sandbox/MultiChannelUSB/adc_lvds.v

Timestamp:

May 13, 2011, 6:17:07 PM (13 years ago)

Author:

demin

Message:

correctly working version

File:

• sandbox/MultiChannelUSB/adc_lvds.v (modified) (5 diffs)

sandbox/MultiChannelUSB/adc_lvds.v

@@ -18 +18 @@
 
         );
+        localparam      width2  =       width + 2;
                 
         reg                                                     state, int_rdreq, adc_frame_reg;
@@ -24 +25 @@
         reg             [size-1:0]                      int_data_p, int_data_n;
 
-        reg     [size*width-1:0]        int_data_reg;
-        wire    [size*width-1:0]        int_data_wire;
+        reg     [2:0]                           int_edge_reg;
+
+        reg     [size*width-1:0]        int_fifo_reg;
+        wire    [size*width-1:0]        int_fifo_wire;
+
+        reg     [size*width2-1:0]       int_data_reg;
+        wire    [size*width2-1:0]       int_data_wire;
 
         wire    [size*width-1:0]        int_q_wire;
@@ -40 +46 @@
 //                      assign int_data_wire[j*width+width-1:j*width] = {int_data_reg[j*width+width-3:j*width], int_data_p[j], int_data_n[j]};
 // LSB first
-                        assign int_data_wire[j*width+width-1:j*width] = {int_data_n[j], int_data_p[j], int_data_reg[j*width+width-1:j*width+2]};
+//                      assign int_data_wire[j*width+width-1:j*width] = {int_data_n[j], int_data_p[j], int_data_reg[j*width+width-1:j*width+2]};
+                        assign int_data_wire[j*width2+width2-1:j*width2] = {int_data_n[j], int_data_p[j], int_data_reg[j*width2+width2-1:j*width2+2]};
+                        assign int_fifo_wire[j*width+width-1:j*width] = int_data_reg[j*width2+width2-3:j*width2];
                 end
         endgenerate
@@ -56 +64 @@
                 .underflow_checking("ON"),
                 .use_eab("ON")) fifo_unit (
-                .data(int_data_wire),
+//              .data(int_data_wire),
+                .data(int_fifo_reg),
                 .rdclk(clock),
                 .rdreq((~int_rdempty) & int_rdreq),
@@ -102 +111 @@
                 int_data_p <= lvds_d;
                 int_data_reg <= int_data_wire;
-
+                int_edge_reg <= {(~int_edge_reg[1]), int_edge_reg[0], lvds_fco};
+                if (int_edge_reg[1] & int_edge_reg[2])
+                begin
+                        int_fifo_reg <= int_fifo_wire;
+                end
         end