Try reproduce XST offload subband index error in sim, using settings from HW.

applications/lofar2/libraries/sdp/tb/vhdl/tb_sdp_statistics_offload.vhd

@@ -57,14 +57,14 @@ ENTITY tb_sdp_statistics_offload IS
     g_statistics_type          : STRING := "XST";
     g_offload_time             : NATURAL := 50;
     g_reverse_word_order       : BOOLEAN := TRUE;  -- when TRUE then stream LSB word after MSB word.
-    g_gn_index                 : NATURAL := 0;  -- global node (GN) index, must be in range(O_rn, O_rn + N_rn), use > 0 to see effect of g_offload_time
+    g_gn_index                 : NATURAL := 4;  -- global node (GN) index, must be in range(O_rn, O_rn + N_rn), use > 0 to see effect of g_offload_time
     -- BST
     g_beamset_id               : NATURAL := 0;  -- < c_sdp_N_beamsets
     -- XST
     g_O_rn                     : NATURAL := 0;  -- GN index of first ring node (RN)
     g_N_rn                     : NATURAL := 8;  -- <= c_sdp_N_rn_max = 16, number of nodes in ring
     g_P_sq                     : NATURAL := 9;  -- <= c_sdp_P_sq, nof available correlator cells
-    g_nof_crosslets            : NATURAL := 7;  -- <= c_sdp_N_crosslets_max
+    g_nof_crosslets            : NATURAL := 1;  -- <= c_sdp_N_crosslets_max
     g_crosslets_direction      : NATURAL := 1   -- > 0 for crosslet transport in positive direction (incrementing RN), else 0 for negative direction
   );
 END tb_sdp_statistics_offload;