Changeset 42 for trunk/MultiChannelUSB/adc_lvds.v

Timestamp:

Sep 12, 2009, 2:04:57 AM (15 years ago)

Author:

demin

Message:

code cleanup

File:

• trunk/MultiChannelUSB/adc_lvds.v (modified) (2 diffs)

trunk/MultiChannelUSB/adc_lvds.v

@@ -5 +5 @@
                 input   wire    [2:0]   lvds_d,
 
-                output  wire                    adc_clk,
-                output  wire    [11:0]  adc_db,
-                output  wire    [11:0]  adc_dc,
-                output  wire    [11:0]  adc_dd
+                output  reg             [11:0]  adc_db,
+                output  reg             [11:0]  adc_dc,
+                output  reg             [11:0]  adc_dd
         );
 
 
         wire    [2:0]   int_data_h, int_data_l;
-        reg     [11:0]  int_data_sr [2:0];
+        reg     [11:0]  int_data_next [2:0];
         reg     [11:0]  int_data [2:0];
-        reg                             int_fco;
-
-        integer                 i;
 
         altddio_in #(
                 .intended_device_family("Cyclone III"),
-                .invert_input_clocks("OFF"),
+                .invert_input_clocks("ON"),
                 .lpm_type("altddio_in"),
                 .width(3)) altddio_in_unit (
@@ -36 +32 @@
         always @ (posedge lvds_dco)
         begin
-                for(i = 0; i < 3; i = i + 1)
-                begin
-                        int_data_sr[i] <= {int_data_sr[i][9:0], int_data_h[i], int_data_l[i]};
-                end
-
-                // one clock delay for FCO
-                int_fco <= lvds_fco;
-                
-                if((lvds_fco) & (~int_fco))
-                begin
-                        for(i = 0; i < 3; i = i + 1)
-                        begin
-                                int_data[i] <= {int_data_sr[i][9:0], int_data_h[i], int_data_l[i]};
-                        end
-                end
+                int_data[0] <= int_data_next[0];
+                int_data[1] <= int_data_next[1];
+                int_data[2] <= int_data_next[2];
         end
 
-        assign  adc_clk = int_fco;
-        assign  adc_db = int_data[0];
-        assign  adc_dc = int_data[1];
-        assign  adc_dd = int_data[2];
+        always @ (posedge lvds_fco)
+        begin
+                adc_db <= int_data_next[0];
+                adc_dc <= int_data_next[1];
+                adc_dd <= int_data_next[2];
+        end
+
+        always @*
+        begin
+                int_data_next[0] = {int_data[0][9:0], int_data_l[0], int_data_h[0]};
+                int_data_next[1] = {int_data[1][9:0], int_data_l[1], int_data_h[1]};
+                int_data_next[2] = {int_data[2][9:0], int_data_l[2], int_data_h[2]};
+        end
 
 endmodule