fixed major error in aw and ar router. wrote r router

src/axi3-interconnect.vhd

@@ -5,6 +5,8 @@ use ieee.numeric_std.all;
 use work.axi3intercon_pkg.all;
 use work.axi_aw_router_pkg.all;
 use work.axi_ar_router_pkg.all;
+use work.axi_r_router_pkg.all;
+use work.axi_w_router_pkg.all;
 
 entity axi3intercon is
 	port(
@@ -14,8 +16,8 @@ entity axi3intercon is
 		masters_out   : in  axi_masters_out_t(0 to MASTER_COUNT - 1);
 		slaves_in     : out axi_slaves_in_t(0 to SLAVE_COUNT - 1);
 		slaves_out    : in  axi_slaves_out_t(0 to SLAVE_COUNT - 1);
-		address_array : axi_slave_addresses_t(0 to SLAVE_COUNT - 1);
-		mask_array    : axi_slave_addresses_t(0 to SLAVE_COUNT - 1)
+		address_array : in  axi_slave_addresses_t(0 to SLAVE_COUNT - 1);
+		mask_array    : in  axi_slave_addresses_t(0 to SLAVE_COUNT - 1)
 	);
 end entity axi3intercon;
 
@@ -31,6 +33,14 @@ architecture RTL of axi3intercon is
 	signal ar_masters_in  : axi_ar_masters_in_t(0 to MASTER_COUNT - 1);
 	signal ar_slaves_out  : axi_ar_slaves_out_t(0 to SLAVE_COUNT);
 	signal ar_slaves_in   : axi_ar_slaves_in_t(0 to SLAVE_COUNT);
+	signal w_masters_in   : axi_w_masters_in_t(0 to MASTER_COUNT - 1);
+	signal w_masters_out  : axi_w_masters_out_t(0 to MASTER_COUNT - 1);
+	signal w_slaves_in    : axi_w_slaves_in_t(0 to SLAVE_COUNT);
+	signal w_slaves_out   : axi_w_slaves_out_t(0 to SLAVE_COUNT);
+	signal r_slaves_in    : axi_r_slaves_in_t(0 to SLAVE_COUNT);
+	signal r_slaves_out   : axi_r_slaves_out_t(0 to SLAVE_COUNT);
+	signal r_masters_in   : axi_r_masters_in_t(0 to MASTER_COUNT - 1);
+	signal r_masters_out  : axi_r_masters_out_t(0 to MASTER_COUNT - 1);
 
 begin
 	reset_sync : process(aclk, aresetn) is
@@ -88,4 +98,46 @@ begin
 		slaves_in(i).ar  <= ar_slaves_in(i);
 	end generate ar_slave_connect;
 
+	axi3_intercon_w_router_inst : entity work.axi3_intercon_w_router
+		port map(
+			clk            => aclk,
+			rst            => rst,
+			masters_in     => w_masters_in,
+			masters_out    => w_masters_out,
+			slaves_in      => w_slaves_in,
+			slaves_out     => w_slaves_out,
+			write_locks    => write_locks,
+			write_releases => write_releases
+		);
+
+	w_master_connect : for i in 0 to MASTER_COUNT - 1 generate
+		w_masters_out(i) <= masters_out(i).w;
+		masters_in(i).w  <= w_masters_in(i);
+	end generate w_master_connect;
+
+	w_slave_connect : for i in 0 to SLAVE_COUNT - 1 generate
+		w_slaves_out(i) <= slaves_out(i).w;
+		slaves_in(i).w  <= w_slaves_in(i);
+	end generate w_slave_connect;
+
+	axi3_intercon_r_router_inst : entity work.axi3_intercon_r_router
+		port map(
+			clk         => aclk,
+			rst         => rst,
+			slaves_in   => r_slaves_in,
+			slaves_out  => r_slaves_out,
+			masters_in  => r_masters_in,
+			masters_out => r_masters_out
+		);
+
+	r_master_connect : for i in 0 to MASTER_COUNT - 1 generate
+		r_masters_out(i) <= masters_out(i).r;
+		masters_in(i).r  <= r_masters_in(i);
+	end generate r_master_connect;
+
+	r_slave_connect : for i in 0 to SLAVE_COUNT - 1 generate
+		r_slaves_out(i) <= slaves_out(i).r;
+		slaves_in(i).r  <= r_slaves_in(i);
+	end generate r_slave_connect;
+
 end architecture RTL;

src/axi3-interconnect_pkg.vhd

@@ -153,7 +153,7 @@ package axi3intercon_pkg is
 		rready : std_logic;
 	end record master_r_out_t;
 
-	subtype slave_r_in is master_r_out_t;
+	subtype slave_r_in_t is master_r_out_t;
 
 	-- Type declarations for B channel
 	type master_b_in_t is record
@@ -198,7 +198,7 @@ package axi3intercon_pkg is
 		aw : slave_aw_in_t;
 		ar : slave_ar_in_t;
 		w  : slave_w_in_t;
-		r  : slave_r_in;
+		r  : slave_r_in_t;
 		b  : slave_b_in_t;
 	end record axi_slave_in_t;
 
@@ -222,6 +222,7 @@ package axi3intercon_pkg is
 	function calculate_slave(address       : in std_logic_vector(ADDRESS_BITS - 1 downto 0);
 			                 address_array : in axi_slave_addresses_t(0 to SLAVE_COUNT - 1);
 			                 mask_array    : in axi_slave_addresses_t(0 to SLAVE_COUNT - 1)) return integer;
+
 end package axi3intercon_pkg;
 
 package body axi3intercon_pkg is
@@ -238,4 +239,5 @@ package body axi3intercon_pkg is
 		end loop;
 		return slave_idx;
 	end function calculate_slave;
+
 end package body axi3intercon_pkg;

src/master2slave/axi3-interconnect-ar-router.vhd

@@ -43,20 +43,19 @@ begin
 				slaves_in(i).arvalid <= '0';
 			end loop;
 			slave_in_use := (others => '0');
-			arready_s    <= (others => '1');
+			arready_s    <= (others => '0');
 		elsif rising_edge(clk) then
 			for i in 0 to MASTER_COUNT - 1 loop -- Loop for every master
 				case ar_states(i) is
 					when AR_READY =>
-						arready_s(i) <= '1';
-						if masters_out(i).arvalid = '1' and arready_s(i) = '1' then
+						if masters_out(i).arvalid = '1' then
 							slave_idx(i) := calculate_slave(masters_out(i).araddr, address_array, mask_array);
 							if slave_in_use(slave_idx(i)) /= '1' then
 								slave_in_use(slave_idx(i))      := '1';
-								masters_in(i).arready           <= '0';
+								masters_in(i).arready           <= '1';
 								-- Write request to slave
 								slaves_in(slave_idx(i)).araddr  <= masters_out(i).araddr;
-								slaves_in(slave_idx(i)).arid    <= std_logic_vector(to_unsigned(i, WID_SLAVE_BITS - WID_MASTER_BITS)) & masters_out(i).arid;
+								slaves_in(slave_idx(i)).arid    <= std_logic_vector(to_unsigned(i, RID_SLAVE_BITS - RID_MASTER_BITS)) & masters_out(i).arid;
 								slaves_in(slave_idx(i)).arburst <= masters_out(i).arburst;
 								slaves_in(slave_idx(i)).arcache <= masters_out(i).arcache;
 								slaves_in(slave_idx(i)).arlen   <= masters_out(i).arlen;
@@ -68,6 +67,7 @@ begin
 							end if;
 						end if;
 					when AR_ACTIVE =>
+						arready_s(i) <= '0';
 						if slaves_out(slave_idx(i)).arready = '1' then
 							slaves_in(slave_idx(i)).arvalid <= '0';
 							ar_states(i)                    <= AR_READY;

src/master2slave/axi3-interconnect-aw-router.vhd

@@ -56,20 +56,19 @@ begin
 			for i in 0 to SLAVE_COUNT loop
 				slaves_in(i).awvalid <= '0';
 			end loop;
-			awready_s    <= (others => '1');
+			awready_s    <= (others => '0');
 			slave_in_use := (others => '0');
 		elsif rising_edge(clk) then
 			for i in 0 to MASTER_COUNT - 1 loop -- Loop for every master
 				case aw_states(i) is
 					when AW_READY =>
-						masters_in(i).awready <= '1';
-						if masters_out(i).awvalid = '1' and awready_s(i) = '1' then -- check awready. just to prevent glitches
+						if masters_out(i).awvalid = '1' then -- check awready. just to prevent glitches
 							slave_idx := calculate_slave(masters_out(i).awaddr, address_array, mask_array);
 							if slave_in_use(slave_idx) /= '1' then
+								awready_s(i)                 <= '1';
 								write_locks_s(i).slave_idx   <= slave_idx;
 								write_locks_s(i).locked      <= '1';
 								slave_in_use(slave_idx)      := '1';
-								awready_s(i)                 <= '0';
 								-- output request to slave
 								slaves_in(slave_idx).awaddr  <= masters_out(i).awaddr;
 								slaves_in(slave_idx).awid    <= std_logic_vector(to_unsigned(i, WID_SLAVE_BITS - WID_MASTER_BITS)) & masters_out(i).awid;
@@ -85,6 +84,7 @@ begin
 							end if;
 						end if;
 					when AW_ACTIVE =>
+						awready_s(i) <= '0';
 						if slaves_out(write_locks_s(i).slave_idx).awready = '1' then
 							slaves_in(write_locks_s(i).slave_idx).awvalid <= '0';
 							aw_states(i)                                  <= AW_BLOCK;

src/master2slave/axi3-interconnect-w-router.vhd

@@ -32,20 +32,18 @@ begin
 	begin
 		if rst = '1' then
 			for i in 0 to MASTER_COUNT - 1 loop
-				wready_s(i) <= '0';
+				wready_s(i)       <= '0';
 				write_releases(i) <= '0';
 			end loop;
 			for i in 0 to SLAVE_COUNT loop
 				slaves_in(i).wvalid <= '0';
 			end loop;
 		elsif rising_edge(clk) then
-			
 			for i in 0 to MASTER_COUNT - 1 loop
 				write_releases(i) <= '0';
 				if write_locks(i).locked = '1' then
-				
 					case w_states(i) is
-					when W_READY =>
+						when W_READY =>
 							wready_s(i) <= '1';
 							if wready_s(i) = '1' and masters_out(i).wvalid = '1' then
 								wready_s(i)                                <= '0';
@@ -58,13 +56,13 @@ begin
 								if masters_out(i).wlast = '1' then
 									write_releases(i) <= '1';
 								end if;
-								w_states(i)                                <= W_ACTIVE;
-								
+								w_states(i) <= W_ACTIVE;
+
 							end if;
 						when W_ACTIVE =>
 							if slaves_out(write_locks(i).slave_idx).wready = '1' then
 								slaves_in(write_locks(i).slave_idx).wvalid <= '0';
-								w_states(i) <= W_READY;
+								w_states(i)                                <= W_READY;
 							end if;
 					end case;
 				else

src/slave2master/axi3-interconnect-r-router.vhd

@@ -0,0 +1,71 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+use work.axi3intercon_pkg.all;
+use work.axi_r_router_pkg.all;
+
+entity axi3_intercon_r_router is
+	port(
+		clk         : in  std_logic;
+		rst         : in  std_logic;
+		slaves_in   : out axi_r_slaves_in_t(0 to SLAVE_COUNT);
+		slaves_out  : in  axi_r_slaves_out_t(0 to SLAVE_COUNT);
+		masters_in  : out axi_r_masters_in_t(0 to MASTER_COUNT - 1);
+		masters_out : in  axi_r_masters_out_t(0 to MASTER_COUNT - 1)
+	);
+end entity axi3_intercon_r_router;
+
+architecture RTL of axi3_intercon_r_router is
+	type master_indexes_t is array (natural range <>) of integer range 0 to MASTER_COUNT - 1;
+	type r_state_t is (R_READY, R_ACTIVE);
+	type r_states_t is array (0 to SLAVE_COUNT) of r_state_t;
+	signal r_states : r_states_t;
+begin
+	r_router : process(clk, rst) is
+		variable master_in_use : std_logic_vector(0 to MASTER_COUNT - 1) := (others => '0');
+		variable master_idx    : master_indexes_t(0 to SLAVE_COUNT);
+	begin
+		if rst = '1' then
+			master_in_use := (others => '0');
+			for i in 0 to SLAVE_COUNT loop
+				slaves_in(i).rready <= '0';
+
+				r_states(i) <= R_READY;
+			end loop;
+			for i in 0 to MASTER_COUNT - 1 loop
+				masters_in(i).rvalid <= '0';
+			end loop;
+		-- TODO: Reset
+		elsif rising_edge(clk) then
+			for i in 0 to SLAVE_COUNT loop
+				case r_states(i) is
+					when R_READY =>
+						if slaves_out(i).rvalid = '1' then
+							-- calculate master	
+							master_idx(i) := to_integer(unsigned(slaves_out(i).rid(RID_SLAVE_BITS - 1 downto RID_MASTER_BITS)));
+							if (master_in_use(master_idx(i)) = '0') then
+								master_in_use(master_idx(i))     := '1';
+								slaves_in(i).rready              <= '1';
+								masters_in(master_idx(i)).rid    <= slaves_out(i).rid(masters_in(master_idx(i)).rid'range);
+								masters_in(master_idx(i)).rdata  <= slaves_out(i).rdata;
+								masters_in(master_idx(i)).rlast  <= slaves_out(i).rlast;
+								masters_in(master_idx(i)).rresp  <= slaves_out(i).rresp;
+								masters_in(master_idx(i)).ruser  <= slaves_out(i).ruser;
+								masters_in(master_idx(i)).rvalid <= '1';
+								r_states(i)                      <= R_ACTIVE;
+							end if;
+						end if;
+					when R_ACTIVE =>
+						slaves_in(i).rready <= '0';
+						if masters_out(master_idx(i)).rready = '1' then
+							masters_in(master_idx(i)).rvalid <= '0';
+							master_in_use(master_idx(i))     := '0';
+							r_states(i)                      <= R_READY;
+						end if;
+				end case;
+			end loop;
+		end if;
+	end process r_router;
+
+end architecture RTL;

src/slave2master/axi3-interconnect-r-router_pkg.vhd

@@ -0,0 +1,14 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+use work.axi3intercon_pkg.all;
+
+package axi_r_router_pkg is
+	type axi_r_masters_in_t is array (natural range <>) of master_r_in_t;
+	type axi_r_masters_out_t is array (natural range <>) of master_r_out_t;
+	type axi_r_slaves_out_t is array (natural range <>) of slave_r_out_t;
+	type axi_r_slaves_in_t is array (natural range <>) of slave_r_in_t;
+end package axi_r_router_pkg;
+
+-- package body axi_r_router_pkg is
+-- end package body axi_r_router_pkg;