push modif to pck_cnt branch

hdl/ccn_pack.vhd

@@ -233,8 +233,7 @@ begin
     -- PACKET RATE COUNTER --
     -------------------------
     pkt_cnt_incr      <= reg_tvalid and pkt_reg_tready;  -- same conditions as for pkt decounter
-    -- pkt_rt_cnt_zero   <= '1' when is_pps = 1 else '0';-- unused
-    -- pkt_rate_cnt  <= std_logic_vector(resize(unsigned(pkt_rt_cnt),pkt_rate_cnt'length)) when is_pps = '1';  -- save packet rate cnt value in RO reg 
+
     pkt_rate_cnt <= pkt_rt_cnt_v;
 
     p_pkt_rt_cnt:process(aclk, aresetn) -- counter process 
@@ -244,7 +243,7 @@ begin
 
         elsif rising_edge(aclk) then
             if is_pps = '1' then       
-                pkt_rt_cnt_v <= std_logic_vector(resize(unsigned(pkt_rt_cnt),pkt_rate_cnt'length));
+                pkt_rt_cnt_v <= std_logic_vector(pkt_rt_cnt);
                 pkt_rt_cnt <= (others => '0');               -- reset packet rate value 
             else
                 if pkt_rt_cnt_ena = '1' and pkt_cnt_incr = '1' then
@@ -463,7 +462,7 @@ begin
                 load_pkt_cnt_ena        <= '0';
                 pass                    <= '0';
                 frame_error             <= '1';
-                pkt_rt_cnt_ena          <= '0';-- pkt_rt counter disable
+                pkt_rt_cnt_ena          <= '1';-- pkt_rt counter enable even if not necessayr - synthesis optimization ;) 
                 --
                 fsm_state_next <= STANDBY;
 
@@ -472,7 +471,7 @@ begin
                 load_pkt_cnt_ena        <= '0';
                 pass                    <= '0';
                 frame_error             <= '1';
-                pkt_rt_cnt_ena          <= '0';-- pkt_rt counter disable
+                pkt_rt_cnt_ena          <= '1';-- pkt_rt counter enable : pps rate cnt --> even if a packet does not belong to the current frame, it is a packet. 
                 --
                 fsm_state_next <= STANDBY;