Changeset 90 for trunk/MultiChannelUSB/trigger.v

Timestamp:

Feb 27, 2010, 10:10:19 PM (15 years ago)

Author:

demin

Message:

full rewrite

File:

• trunk/MultiChannelUSB/trigger.v (modified) (1 diff)

trunk/MultiChannelUSB/trigger.v

@@ -1 +1 @@
 module trigger
         (
-                input   wire                    clk, reset,
-                input   wire                    data_ready,
-                input   wire    [11:0]  data, threshold,
-                output  wire                    trigger
+                input   wire                    clock, frame, reset,
+                input   wire    [11:0]  cfg_data,
+                input   wire    [11:0]  trg_data,
+                output  wire                    trg_flag
         );
         
-        reg                             int_trigger;
+        reg                             trg_flag_reg;
+        reg             [11:0]  cfg_data_reg;
+        reg             [11:0]  trg_data_reg;
 
-        always @(posedge clk)
+        always @(posedge clock)
         begin
                 if (reset)
         begin
-                        int_trigger <= 1'b0;
+                        trg_flag_reg <= 1'b0;
         end
-        else if (data_ready)
+        else 
                 begin
-                        int_trigger <= (data >= threshold);
+                        if (frame)
+                        begin
+                                cfg_data_reg <= cfg_data;
+                                trg_data_reg <= trg_data;
+                        end
+                        trg_flag_reg <= (trg_data_reg >= cfg_data_reg);
                 end
         end
         
-        assign trigger = int_trigger;
+        assign trg_flag = trg_flag_reg;
 
 endmodule