Corrected integration_interval field value is index + 1.

applications/lofar2/libraries/sdp/src/vhdl/sdp_statistics_offload.vhd

@@ -137,7 +137,7 @@ ARCHITECTURE str OF sdp_statistics_offload IS
     integration_interval : NATURAL; 
   END RECORD;
 
-  CONSTANT c_reg_rst : t_reg := (0, 0, '0', (OTHERS => '0'), (OTHERS => '0'), 0, '0', 0, 1); -- integration interval should start at 1 as it is a total count and not an index count.
+  CONSTANT c_reg_rst : t_reg := (0, 0, '0', (OTHERS => '0'), (OTHERS => '0'), 0, '0', 0, 0);
 
   SIGNAL r     : t_reg;
   SIGNAL nxt_r : t_reg;
@@ -207,7 +207,7 @@ BEGIN
     
     -- Count number of sop's in a sync interval and get payload errors and keep them till next sync.
     IF in_sosi.sync = '1' THEN
-      v.integration_interval := r.interval_cnt;
+      v.integration_interval := r.interval_cnt + 1;  -- count = index + 1
       v.interval_cnt := 0;
       v.payload_err  := '0';
     ELSE