vhdl: implement feedback packets
This commit is contained in:
parent
d0e65a3126
commit
ccd911dc1e
2 changed files with 31 additions and 22 deletions
|
@ -123,6 +123,9 @@ architecture a of arty_a7 is
|
|||
signal pixel_source_last : std_logic;
|
||||
signal pixel_source_data : std_logic_vector(31 downto 0);
|
||||
|
||||
signal remote_ip_address : std_logic_vector(31 downto 0);
|
||||
signal remote_port : std_logic_vector(15 downto 0);
|
||||
|
||||
component PLLE2_BASE
|
||||
generic (
|
||||
CLKFBOUT_MULT : integer;
|
||||
|
@ -186,6 +189,8 @@ architecture a of arty_a7 is
|
|||
end component BUFG;
|
||||
|
||||
signal sys_reset : std_logic;
|
||||
|
||||
signal frame_done : std_logic;
|
||||
begin
|
||||
leds_simple <= (others => '0');
|
||||
led0 <= (others => '0');
|
||||
|
@ -228,8 +233,8 @@ begin
|
|||
pixel_bind_port => x"effd", -- port 61437 - "PIXEL"
|
||||
|
||||
-- sink
|
||||
pixel_sink_dst_ip_address => x"0a141e29",
|
||||
pixel_sink_dst_port => x"303a", -- port 12346
|
||||
pixel_sink_dst_ip_address => remote_ip_address,
|
||||
pixel_sink_dst_port => remote_port,
|
||||
|
||||
pixel_sink_length => pixel_sink_length,
|
||||
pixel_sink_valid => pixel_sink_valid,
|
||||
|
@ -294,29 +299,27 @@ begin
|
|||
pmod_d <= drivers(23 downto 16);
|
||||
|
||||
sender: process(sys_clk)
|
||||
constant COUNTER_MAX: natural := 80000000;
|
||||
variable counter: natural range 0 to COUNTER_MAX;
|
||||
|
||||
constant NUM_WORDS: natural := 10;
|
||||
variable words_sent: natural range 0 to NUM_WORDS;
|
||||
variable frame_counter : unsigned(31 downto 0);
|
||||
begin
|
||||
if rising_edge(sys_clk) then
|
||||
if counter = COUNTER_MAX then
|
||||
pixel_sink_length <= std_logic_vector(to_unsigned(NUM_WORDS, 16));
|
||||
pixel_sink_data <= std_logic_vector(to_unsigned(16#30# + words_sent, 32));
|
||||
--pixel_sink_valid <= '1';
|
||||
if sys_reset then
|
||||
frame_counter := (others => '0');
|
||||
elsif rising_edge(sys_clk) then
|
||||
if pixel_source_valid then
|
||||
remote_ip_address <= pixel_source_src_ip_address;
|
||||
remote_port <= pixel_source_src_port;
|
||||
end if;
|
||||
|
||||
pixel_sink_last <= '1' when words_sent = NUM_WORDS-1 else '0';
|
||||
if frame_done then
|
||||
pixel_sink_length <= x"0004";
|
||||
pixel_sink_data <= std_logic_vector(frame_counter);
|
||||
pixel_sink_valid <= '1';
|
||||
pixel_sink_last <= '1';
|
||||
|
||||
if words_sent = NUM_WORDS then
|
||||
pixel_sink_valid <= '0';
|
||||
counter := 0;
|
||||
words_sent := 0;
|
||||
elsif pixel_sink_ready then
|
||||
words_sent := words_sent + 1;
|
||||
end if;
|
||||
else
|
||||
counter := counter + 1;
|
||||
frame_counter := frame_counter + 1;
|
||||
end if;
|
||||
|
||||
if pixel_sink_ready and pixel_sink_valid then
|
||||
pixel_sink_valid <= '0';
|
||||
end if;
|
||||
end if;
|
||||
end process;
|
||||
|
@ -334,6 +337,8 @@ begin
|
|||
udp_last => pixel_source_last,
|
||||
udp_data => pixel_source_data,
|
||||
|
||||
frame_done => frame_done,
|
||||
|
||||
drivers => drivers
|
||||
);
|
||||
end architecture;
|
||||
|
|
|
@ -15,6 +15,8 @@ entity splink is
|
|||
udp_last : in std_logic;
|
||||
udp_data : in std_logic_vector(31 downto 0);
|
||||
|
||||
frame_done : out std_logic;
|
||||
|
||||
drivers : out std_logic_vector(NUM_STRANDS-1 downto 0)
|
||||
);
|
||||
end entity;
|
||||
|
@ -63,12 +65,14 @@ begin
|
|||
variable store_counter: natural range 0 to MAX_STRAND_LEN-1;
|
||||
begin
|
||||
if rising_edge(clk) then
|
||||
frame_done <= '0';
|
||||
current_color <= strand_store(to_integer(unsigned(led_addr)));
|
||||
|
||||
if udp_valid then
|
||||
strand_store(store_counter) <= udp_data(23 downto 0);
|
||||
|
||||
if udp_last then
|
||||
frame_done <= '1';
|
||||
store_counter := 0;
|
||||
elsif store_counter /= MAX_STRAND_LEN-1 then
|
||||
store_counter := store_counter + 1;
|
||||
|
|
Loading…
Reference in a new issue