Simulate multiple in_sync intervals to show output out_sync.

applications/lofar1/pft2/tb/vhdl/tb_pft2.vhd

@@ -66,19 +66,21 @@ ENTITY tb_pft2 IS
     --g_name_x   : STRING  := "u_noise";
   
     -- Select one input signal for Y (used as imag input to the PFT)
-    --g_name_y   : STRING  := "cosin_N2"
-    --g_name_y   : STRING  := "cosin_1"
-    --g_name_y   : STRING  := "cosin_39"
-    --g_name_y   : STRING  := "sinus_1"
-    --g_name_y   : STRING  := "sinus_13"
-    --g_name_y   : STRING  := "sinus_13s"
-    --g_name_y   : STRING  := "impulse_0"
-    --g_name_y   : STRING  := "impulse_1"
-    g_name_y   : STRING  := "zeros"  -- For PFT_MODE_BITREV and PFT_MODE_COMPLEX select zeros for Y input.
-    --g_name_y   : STRING  := "dc"
-    --g_name_y   : STRING  := "block_1"
-    --g_name_y   : STRING  := "block_117"
-    --g_name_y   : STRING  := "u_noise"
+    --g_name_y   : STRING  := "cosin_N2";
+    --g_name_y   : STRING  := "cosin_1";
+    --g_name_y   : STRING  := "cosin_39";
+    --g_name_y   : STRING  := "sinus_1";
+    --g_name_y   : STRING  := "sinus_13";
+    --g_name_y   : STRING  := "sinus_13s";
+    --g_name_y   : STRING  := "impulse_0";
+    --g_name_y   : STRING  := "impulse_1";
+    g_name_y   : STRING  := "zeros";  -- For PFT_MODE_BITREV and PFT_MODE_COMPLEX select zeros for Y input.
+    --g_name_y   : STRING  := "dc";
+    --g_name_y   : STRING  := "block_1";
+    --g_name_y   : STRING  := "block_117";
+    --g_name_y   : STRING  := "u_noise";
+    g_repeat   : NATURAL := 2  -- minimal 2 due to PFT latency
+    --g_repeat   : NATURAL := 10  -- > c_nof_block_per_sync to view multiple in_sync and out_sync intervals
   );
 END tb_pft2;
 
@@ -90,12 +92,12 @@ ARCHITECTURE tb OF tb_pft2 IS
   CONSTANT c_in_dat_w           : NATURAL := 18;
   CONSTANT c_out_dat_w          : NATURAL := 18;
   
+  CONSTANT c_nof_block_per_sync : NATURAL := 2;
+  
   -- The input stimuli signals are located in c_tst_data_dir and have been
   -- generated with TC 5.2 and are used in the PFT continuous test TC 5.19.
   CONSTANT c_tst_data_dir       : STRING  := "data/";
   
-  CONSTANT c_repeat             : NATURAL := 2;  -- minimal 2 due to PFT latency
-  
   -- Maximum quantization error in PFT output
   CONSTANT c_diff_max           : NATURAL := 20;  -- Maximum quantization error in PFT output, as used in tc.tcl
   --CONSTANT c_diff_max           : NATURAL := 10;  -- value per subband
@@ -122,6 +124,7 @@ ARCHITECTURE tb OF tb_pft2 IS
   SIGNAL tb_end             : STD_LOGIC := '0';
   SIGNAL clk                : STD_LOGIC := '1';
   SIGNAL rst                : STD_LOGIC := '1';
+  SIGNAL rst_sync           : STD_LOGIC := '1';
 
   -- PFT input stimuli from file
   SIGNAL in_en              : STD_LOGIC;
@@ -310,10 +313,12 @@ BEGIN
     
   clk <= (NOT clk) OR tb_end AFTER c_clk_period / 2;
 
-  in_sync <= '0', '1' AFTER c_clk_period*c_rst_period*2, '0' AFTER c_clk_period*(c_rst_period*2+1);
   in_en  <= '0', '1' AFTER c_clk_period*c_rst_period*2;
   in_val <= in_val_x;
 
+  rst_sync <= '1', '0' AFTER c_clk_period*(c_rst_period*2 - 1);    -- start in_sync pulse interval 1 clk cycle before first in_val = '1'
+  proc_common_gen_pulse(1, c_nof_block_per_sync*c_fft_size, '1', rst_sync, clk, in_sync);
+  
   
   -----------------------------------------------------------------------------
   -- Input X, Y data
@@ -322,7 +327,7 @@ BEGIN
   u_in_x: ENTITY tst_lib.tst_input
   GENERIC MAP (
     g_file_name   => c_file_pft_in_x,
-    g_file_repeat => c_repeat,
+    g_file_repeat => g_repeat,
     g_nof_data    => 1,
     g_data_width  => c_in_dat_w,
     g_data_type   => "SIGNED"
@@ -338,7 +343,7 @@ BEGIN
   u_in_y: ENTITY tst_lib.tst_input
   GENERIC MAP (
     g_file_name   => c_file_pft_in_y,
-    g_file_repeat => c_repeat,
+    g_file_repeat => g_repeat,
     g_nof_data    => 1,
     g_data_width  => c_in_dat_w,
     g_data_type   => "SIGNED"

applications/lofar1/pft2/tb/vhdl/tb_tb_pft2.vhd

@@ -75,26 +75,29 @@ BEGIN
   --g_name_y   : STRING  := "block_1"
   --g_name_y   : STRING  := "block_117"
   --g_name_y   : STRING  := "u_noise"
+  --
+  --g_repeat   : NATURAL := 2  -- minimal 2 due to PFT latency
+  --g_repeat   : NATURAL := 10  -- > c_nof_block_per_sync to view multiple in_sync and out_sync intervals
     
-  u_cosin_N2  : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "cosin_N2" , "zeros");
-  u_cosin_1   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "cosin_1"  , "zeros");
-  u_cosin_39  : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "cosin_39" , "zeros");
-  u_sinus_1   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "sinus_1"  , "zeros");
-  u_sinus_13  : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "sinus_13" , "zeros");
-  u_sinus_13s : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "sinus_13s", "zeros");
-  u_impulse_0 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "impulse_0", "zeros");
-  u_impulse_1 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "impulse_1", "zeros");
-  u_zeros     : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "zeros"    , "zeros");
-  --u_dc        : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "dc"       , "zeros");
-  u_block_1   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "block_1"  , "zeros");
-  u_block_117 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "block_117", "zeros");
-  u_u_noise   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "u_noise"  , "zeros");
+  u_cosin_N2  : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "cosin_N2" , "zeros", 2);
+  u_cosin_1   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "cosin_1"  , "zeros", 2);
+  u_cosin_39  : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "cosin_39" , "zeros", 2);
+  u_sinus_1   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "sinus_1"  , "zeros", 2);
+  u_sinus_13  : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "sinus_13" , "zeros", 2);
+  u_sinus_13s : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "sinus_13s", "zeros", 2);
+  u_impulse_0 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "impulse_0", "zeros", 2);
+  u_impulse_1 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "impulse_1", "zeros", 2);
+  u_zeros     : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "zeros"    , "zeros", 2);
+  u_dc        : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "dc"       , "zeros", 2);
+  u_block_1   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "block_1"  , "zeros", 2);
+  u_block_117 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "block_117", "zeros", 2);
+  u_u_noise   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "u_noise"  , "zeros", 2);
 
-  u_impulse_0_impulse_1 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "impulse_0", "impulse_1");
-  --u_dc_cosin_N2         : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "dc"       , "cosin_N2");
-  --u_dc_sinus_13         : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "dc"       , "sinus_13");
-  u_block_117_u_noise   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "block_117", "u_noise");
-  u_u_noise_u_noise     : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "u_noise"  , "u_noise");
+  u_impulse_0_impulse_1 : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "impulse_0", "impulse_1", 2);
+  u_dc_cosin_N2         : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2,        "dc",  "cosin_N2", 2);
+  u_dc_sinus_13         : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2,        "dc",  "sinus_13", 2);
+  u_block_117_u_noise   : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2, "block_117",   "u_noise", 2);
+  u_u_noise_u_noise     : ENTITY work.tb_pft2 GENERIC MAP(PFT_MODE_REAL2,   "u_noise",   "u_noise", 2);
 
 
 END tb;