feat: Add a rate counter on matrix multiplication

* for debug purpose

hdl/matrix_mul.vhd

@@ -29,6 +29,10 @@ entity matrix_mul is
         pos_seq                : in std_logic_vector(C_W_BPMSEQ-1 downto 0);
         pos_tvalid             : in std_logic;
 
+        -- status
+        mult_rate              : out std_logic_vector(15 downto 0);
+        pps                    : in std_logic;
+
         -- Data out
         matmult                : out signed_array(0 to C_N_MM_PSC-1)(C_W_MM-1 downto 0);
         matmult_tvalid         : out std_logic;
@@ -60,9 +64,33 @@ architecture rtl of matrix_mul is
     signal mul_done : std_logic;
     signal r_mul_done : std_logic;
 
-begin
+    signal mul_cnt      : unsigned(15 downto 0);
+    signal r_mul_cnt    : std_logic_vector(15 downto 0);
+    signal pps_r        : std_logic;
 
+begin
 
+    -----------------------
+    -- MULT RATE COUNTER --
+    -----------------------
+    p_mult_rate:process(clk, rst_n)
+    begin
+        if rst_n = '0' then
+            r_mul_cnt   <= (others => '0');
+            mul_cnt     <= (others => '0');
+            pps_r       <= '0';
+        elsif rising_edge(clk) then
+            pps_r   <= pps;
+            if pps = '1' and pps_r = '0' then
+                r_mul_cnt   <= std_logic_vector(mul_cnt);
+                mul_cnt     <= (others => '0');
+            else
+                if mul_done = '1' then
+                    mul_cnt <= mul_cnt +1;
+                end if;
+            end if;
+        end if;
+    end process;
 
     ---------------------
     -- DELAY REGISTERS --

hdl/top_corr_matrix.vhd

@@ -13,6 +13,8 @@ entity top_corr_matrix is
         clk            : in std_logic;
         rst_n          : in std_logic;
 
+        pps            : in std_logic;
+
         -- AXI-MM interface
         s_axi_m2s      : in t_corr_matrix_m2s;
         s_axi_s2m      : out t_corr_matrix_s2m;
@@ -211,6 +213,9 @@ begin
         pos_seq                => errbpm_seq,
         pos_tvalid             => errbpm_tvalid,
 
+        pps                    => pps,
+        mult_rate              => mm_l2a.MULT_RATE.data.data,
+
         -- Data out
         matmult                => matmult,
         matmult_tvalid         => matmult_tvalid,

rdl/corr_matrix.rdl

@@ -157,6 +157,11 @@ addrmap corr_matrix {
         field {sw = rw; hw = r;} data[`C_W_MM_IDCNT] = `C_N_MM_BPM;
     } MM_ID_CNT;
 
+    reg {
+        desc="Number of matric multiplication per seconds.";
+        field { sw=r; hw=w; } data[16];
+    } MULT_RATE;
+
     mem {
         desc = "X Reference orbit.";
         desyrdl_data_type="int32";