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- added pin non-maskable interrupt (NMI).

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Exception vector is reset vector at (X"BFC00000")


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git-svn-id: http://moon:8086/svn/vhdl/trunk@490 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2009-10-03 16:41:26 +00:00
parent c5027772aa
commit e7b85e0138
5 changed files with 21 additions and 6 deletions
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projects/mips_sys/src/mips_sys.vhd
+5 -1
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@@ -128,6 +128,7 @@ ARCHITECTURE behavior OF mips_sys IS
(
debug : out unsigned(1 downto 0);
eb : in STD_LOGIC;
nmi : in STD_LOGIC;
RST_I : in STD_LOGIC;
CLK_I : in STD_LOGIC;
ACK_I : in STD_LOGIC;
@@ -303,6 +304,7 @@ ARCHITECTURE behavior OF mips_sys IS
);
END COMPONENT;
signal nmi : std_logic;
signal rst : std_logic;
signal clk : std_logic;
signal eb : std_logic;
@@ -436,7 +438,8 @@ BEGIN
gpi1(7 downto 0) <= sys_dip;
sys_led <= gpo0(8 downto 0);
sys_error <= debug;
rst_in <= not sys_rst_n_in;
nmi <= not sys_rst_n_in;
rst_in <= not sys_rst_n_in and sys_btn(0) and sys_btn(2);
rst <= not locked;
sys_usb_rstn <= not gpo1(0);
sys_flash_byten <= '1';
@@ -588,6 +591,7 @@ inst_mips_top: mips_top
(
debug => debug,
eb => eb,
nmi => nmi,
RST_I => rst,
CLK_I => clk,
ACK_I => ACK_I_cpu,