1 files changed, 122 insertions, 0 deletions
diff --git a/hw_altium_livedesign/bsp/top.vhd b/hw_altium_livedesign/bsp/top.vhd
new file mode 100644
index 0000000..5d5125b
--- /dev/null
+++ b/hw_altium_livedesign/bsp/top.vhd
@@ -0,0 +1,122 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+
+entity top is
+  port (
+    clk        : in    std_logic;
+    reset_n    : in    std_logic;
+    --
+    -- soft JTAG
+    soft_tdo   : out   std_logic;
+    soft_tms   : in    std_logic;
+    soft_tdi   : in    std_logic;
+    soft_tck   : in    std_logic;
+    --
+    -- SRAM 0 (256k x 16) pin connections
+    sram0_a    : out   std_logic_vector(18 downto 0);
+    sram0_d    : inout std_logic_vector(15 downto 0);
+    sram0_lb_n : out   std_logic;
+    sram0_ub_n : out   std_logic;
+    sram0_cs_n : out   std_logic;       -- chip select
+    sram0_we_n : out   std_logic;       -- write-enable
+    sram0_oe_n : out   std_logic;       -- output enable
+    --
+    -- SRAM 1 (256k x 16) pin connections
+    sram1_a    : out   std_logic_vector(18 downto 0);
+    sram1_d    : inout std_logic_vector(15 downto 0);
+    sram1_lb_n : out   std_logic;
+    sram1_ub_n : out   std_logic;
+    sram1_cs_n : out   std_logic;       -- chip select
+    sram1_we_n : out   std_logic;       -- write-enable
+    sram1_oe_n : out   std_logic;       -- output enable
+    --
+    -- RS232
+    rs232_rx   : in    std_logic;
+    rs232_tx   : out   std_logic;
+    rs232_cts  : in    std_logic;
+    rs232_rts  : out   std_logic;
+    --
+    -- PS2 connectors
+    mouse_clk  : inout std_logic;
+    mouse_data : inout std_logic;
+    kbd_clk    : inout std_logic;
+    kbd_data   : inout std_logic;
+    --
+    -- vga output
+    vga_red    : out   std_logic_vector(7 downto 5);
+    vga_green  : out   std_logic_vector(7 downto 5);
+    vga_blue   : out   std_logic_vector(7 downto 5);
+    vga_hsync  : out   std_logic;
+    vga_vsync  : out   std_logic;
+    --
+    -- Audio out
+    audio_r    : out   std_logic;
+    audio_l    : out   std_logic;
+    --
+    -- GPIOs
+    switch_n   : in    std_logic_vector(7 downto 0);
+    button_n   : in    std_logic_vector(5 downto 0);
+    led        : out   std_logic_vector(7 downto 0);
+    --
+    -- seven segment display
+    dig0_seg   : out   std_logic_vector(7 downto 0);
+    dig1_seg   : out   std_logic_vector(7 downto 0);
+    dig2_seg   : out   std_logic_vector(7 downto 0);
+    dig3_seg   : out   std_logic_vector(7 downto 0);
+    dig4_seg   : out   std_logic_vector(7 downto 0);
+    dig5_seg   : out   std_logic_vector(7 downto 0);
+    --
+    -- User Header A
+    header_a   : inout std_logic_vector(19 downto 2);
+    header_b   : inout std_logic_vector(19 downto 2)
+    );
+end entity top;
+
+architecture rtl of top is
+
+
+begin
+
+  -- default output drivers
+  -- to pass bitgen DRC 
+  soft_tdo   <= '1';
+  --
+  sram0_a    <= (others => '1');
+  sram0_lb_n <= '1';
+  sram0_ub_n <= '1';
+  sram0_cs_n <= '1';
+  sram0_we_n <= '1';
+  sram0_oe_n <= '1';
+  --
+  sram1_a    <= (others => '1');
+  sram1_lb_n <= '1';
+  sram1_ub_n <= '1';
+  sram1_cs_n <= '1';
+  sram1_we_n <= '1';
+  sram1_oe_n <= '1';
+  --
+  rs232_tx   <= '1';
+  rs232_rts  <= '1';
+  --
+  vga_red    <= (others => '1');
+  vga_green  <= (others => '1');
+  vga_blue   <= (others => '1');
+  vga_hsync  <= '1';
+  vga_vsync  <= '1';
+  --
+  audio_r    <= '0';
+  audio_l    <= '0';
+  --
+  led        <= (others => '0');
+  --
+  dig0_seg   <= (others => '0');
+  dig1_seg   <= (others => '0');
+  dig2_seg   <= (others => '0');
+  dig3_seg   <= (others => '0');
+  dig4_seg   <= (others => '0');
+  dig5_seg   <= (others => '0');
+
+
+end architecture rtl;
+