Addecomemnts

applications/apertif/designs/apertif_unb1_cor_mesh_ref/tb/vhdl/tb_apertif_unb1_cor_mesh_ref.vhd

@@ -21,7 +21,59 @@
 -------------------------------------------------------------------------------
 
 -- Purpose: Verify that unb1_terminal_bg_mesh_db can simulate
--- Description: 
+-- Description:
+--
+--             Each node sends 8 streams of data via a block generator. Eacht stream 
+--             is targetting one of the 8 nodes. The data value in the real part of the 
+--             data stream represents the source node. The data value in the imag part
+--             of the data represents the destination node. The following table shows the 
+--             data values of each stream per node: 
+--             
+--             BLOCKGENERATOR CONFIGURATION: 
+--             STREAMS --> S0    | S1    | S2    | S3    | S4    | S5    | S6    | S7   
+--             NODE        RE IM | RE IM | RE IM | RE IM | RE IM | RE IM | RE IM | RE IM
+--              0 (FN0)     0  0 |  0  1 |  0  2 |  0  3 |  0  4 |  0  5 |  0  6 |  0  7
+--              1 (FN1)     1  0 |  1  1 |  1  2 |  1  3 |  1  4 |  1  5 |  1  6 |  1  7
+--              2 (FN2)     2  0 |  2  1 |  2  2 |  2  3 |  2  4 |  2  5 |  2  6 |  2  7
+--              3 (FN3)     3  0 |  3  1 |  3  2 |  3  3 |  3  4 |  3  5 |  3  6 |  3  7
+--              4 (BN0)     4  0 |  4  1 |  4  2 |  4  3 |  4  4 |  4  5 |  4  6 |  4  7
+--              5 (BN1)     5  0 |  5  1 |  5  2 |  5  3 |  5  4 |  5  5 |  5  6 |  5  7
+--              6 (BN2)     6  0 |  6  1 |  6  2 |  6  3 |  6  4 |  6  5 |  6  6 |  6  7
+--              7 (BN3)     7  0 |  7  1 |  7  2 |  7  3 |  7  4 |  7  5 |  7  6 |  7  7
+--
+--             Naturally the data received at each node should be the data that was targeted
+--             for that specific node. The real parts marks the source node and the imag part
+--             marks the destination node. Unfortunately the source and destination labeling
+--             are not accordingly (FIXME?: that requires new settings for the reorder_rewire) 
+--             Here are the source and destination numbers linked to the nodes: 
+--
+--             NODE        Source | Destination
+--              0 (FN0)      0    |     0
+--              1 (FN1)      1    |     2
+--              2 (FN2)      2    |     4
+--              3 (FN3)      3    |     6
+--              4 (BN0)      4    |     1
+--              5 (BN1)      5    |     3
+--              6 (BN2)      6    |     5
+--              7 (BN3)      7    |     7
+
+--             Therefor the data received at the databuffers at 
+--             each node should be according to the next table: 
+--
+--             EXPECTED DATA DATABUFER: 
+--             STREAMS --> S0    | S1    | S2    | S3    | S4    | S5    | S6    | S7   
+--             NODE        RE IM | RE IM | RE IM | RE IM | RE IM | RE IM | RE IM | RE IM
+--              0 (FN0)     0  0 |  1  0 |  2  0 |  3  0 |  4  0 |  5  0 |  6  0 |  7  0
+--              1 (FN1)     0  2 |  1  2 |  2  2 |  3  2 |  4  2 |  5  2 |  6  2 |  7  2
+--              2 (FN2)     0  4 |  1  4 |  2  4 |  3  4 |  4  4 |  5  4 |  6  4 |  7  4
+--              3 (FN3)     0  6 |  1  6 |  2  6 |  3  6 |  4  6 |  5  6 |  6  6 |  7  6
+--              4 (BN0)     0  1 |  1  1 |  2  1 |  3  1 |  4  1 |  5  1 |  6  1 |  7  1
+--              5 (BN1)     0  3 |  1  3 |  2  3 |  3  3 |  4  3 |  5  3 |  6  3 |  7  3
+--              6 (BN2)     0  5 |  1  5 |  2  5 |  3  5 |  4  5 |  5  5 |  6  5 |  7  5
+--              7 (BN3)     0  7 |  1  7 |  2  7 |  3  7 |  4  7 |  5  7 |  6  7 |  7  7
+--
+--
+              
 --
 -- Usage:
 --   > as 8
@@ -47,7 +99,7 @@ ARCHITECTURE tb OF tb_apertif_unb1_cor_mesh_ref IS
   CONSTANT c_nof_bn          : NATURAL := 4;
   CONSTANT c_nof_fn          : NATURAL := 4;
   CONSTANT c_nof_nodes       : NATURAL := c_nof_bn + c_nof_fn;
-  CONSTANT c_ena_mesh_reorder: BOOLEAN := FALSE;--TRUE; 
+  CONSTANT c_ena_mesh_reorder: BOOLEAN := TRUE; 
   
   CONSTANT c_sim_unb_nr      : NATURAL := 0;
   
@@ -58,8 +110,8 @@ ARCHITECTURE tb OF tb_apertif_unb1_cor_mesh_ref IS
   CONSTANT c_tr_clk_period   : TIME := 6400 ps;  -- 156.25 MHz XO on UniBoard                                                                             
   CONSTANT c_pps_period      : NATURAL := 1000; 
 
-  TYPE t_mesh_arr IS ARRAY  (c_nof_nodes-1 DOWNTO 0) OF STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0);
-  
+  TYPE t_mesh_arr IS ARRAY  (0 TO c_nof_nodes-1) OF STD_LOGIC_VECTOR(c_unb1_board_tr_mesh.bus_w-1 DOWNTO 0);
+
   -- DUT
   SIGNAL WDI                 : STD_LOGIC;
   SIGNAL ext_pps             : STD_LOGIC;