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Line 19... |
recieved_debug : out std_logic_vector(3 downto 0);
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recieved_debug : out std_logic_vector(3 downto 0);
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waitforstart_rdy : out std_logic
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waitforstart_rdy : out std_logic
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);
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);
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end component;
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end component;
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signal decode_output : std_logic_vector(WORD_LENGTH-1 downto 0);
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-- up/down and left/right buffers
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signal parity_o_buff, parity_o_reg : std_logic;
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signal button_o_buff, button_o_reg : std_logic_vector(1 downto 0);
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signal ud_buff1, ud_buff2, lr_buff1, lr_buff2 : std_logic_vector(6 downto 0);
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signal ud_buff1_reg, ud_buff2_reg, lr_buff1_reg, lr_buff2_reg : std_logic_vector(6 downto 0);
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signal char_select : integer range 0 to 3;
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signal reset_manchester, soft_reset, ready_o_buff : std_logic;
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signal clk_i : std_logic;
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signal clk_i : std_logic;
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signal rst_i : std_logic := '1';
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signal rst_i : std_logic := '1';
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--signal data_i : std_logic;
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signal q_o : std_logic_vector(3 downto 0);
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signal ready_o : std_logic;
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signal ready_o : std_logic;
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signal character_o : std_logic_vector(0 to 7);
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signal anode_ctrl : std_logic_vector(3 downto 0);
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signal button_o : std_logic_vector(1 downto 0);
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signal parity_o : std_logic;
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signal recieved_debug : std_logic_vector(3 downto 0);
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signal recieved_debug : std_logic_vector(3 downto 0);
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signal waitforstart_rdy : std_logic;
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signal waitforstart_rdy : std_logic;
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signal coded_rdy: std_logic;
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signal coded : std_logic_vector(WORD_LENGTH-1 downto 0);
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constant half_period : time := 10 ns;
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constant half_period : time := 10 ns;
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constant period : time := 2*half_period;
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constant period : time := 2*half_period;
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constant mid_single : time := (INTERVAL_MIN_SINGLE+INTERVAL_MAX_SINGLE)/2*period;
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constant WORD : std_logic_vector(28 downto 0) := "01100101100101010101010101010";
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----------Added by Thiag-------------
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----------Added by Thiag-------------
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file TEST_IP : TEXT open READ_MODE is "six.dat";
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file TEST_IP : TEXT open READ_MODE is "six.dat";
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signal data_i : std_ulogic;
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signal data_i : std_ulogic;
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constant BIT_PERIOD : time := 100 us;
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constant BIT_PERIOD : time := 40 us;
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-------------------------------------
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-------------------------------------
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begin
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begin
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character_o(7) <= '1'; -- turn off decimal point
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reset_manchester <= rst_i or soft_reset;
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ready_o <= ready_o_buff;
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inst_manchesterWireless: manchesterWireless
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inst_manchesterWireless: manchesterWireless
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port map(
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port map(
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clk_i => clk_i,
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clk_i => clk_i,
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rst_i => reset_manchester,
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rst_i => rst_i,
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data_i => data_i,
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data_i => data_i,
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q_o => decode_output,
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q_o => q_o,
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ready_o => ready_o_buff,
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ready_o => ready_o,
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recieved_debug => recieved_debug,
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recieved_debug => recieved_debug,
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waitforstart_rdy => waitforstart_rdy
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waitforstart_rdy => waitforstart_rdy
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);
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);
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-- the transmitter is sending the following UP/DOWN (4 bits)
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-- then left/right (3 bits), and finally the parity (1 bit)
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-- each command was ror onto the transmitter -- one at a time.
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-- the decoder was written to assume that all the data was in
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-- being shifted to the transmitter from the right
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-- thus, while we are transmitting:
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-- initialize|up/down|left/right|buttons|parity|stop
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-- the decoder will return results to us as
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-- parity|buttons|left/right|up/down
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-- bits 9| 8-7 | 6-4 | 3-0
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-- decode up/down first digit (ones place)
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with decode_output(3 downto 0) select
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ud_buff1 <= "0000001" when x"D", -- off
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"1001111" when x"F", -- 1
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"0010010" when x"7", -- 2
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"0000110" when x"5", -- 3
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"1001100" when x"1", -- 4
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"0100100" when x"3", -- 5
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"0100000" when x"2", -- 6
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"0001111" when x"6", -- 7
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"0000000" when x"e", -- 8
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"0000100" when x"c", -- 9
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"0000001" when x"a", -- 10
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"1001111" when x"b", -- 11
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"0010010" when x"9", -- 12
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"0000110" when x"8", -- 13
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"1111111" when others; -- 'E'rror
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-- decode up/down second digit (tens place)
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with decode_output(3 downto 0) select
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ud_buff2 <= "1001111" when x"a", -- 10
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"1001111" when x"b", -- 11
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"1001111" when x"9", -- 12
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"1001111" when x"8", -- 13
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"1111111" when others;
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-- decode left/right first digit
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with decode_output(6 downto 4) select
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lr_buff1 <= "1001111" when "010", -- -1
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"0010010" when "011", -- -2
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"0000110" when "001", -- -3
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"0000001" when "110", -- 0
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"1001111" when "100", -- 1
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"0010010" when "101", -- 2
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"0000110" when "111", -- 3
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"1111111" when others;
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-- decode left/right sign digit
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with decode_output(6 downto 4) select
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lr_buff2 <= "1111110" when "010", -- -1
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"1111110" when "011", -- -2
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"1111110" when "001", -- -3
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"1111111" when others;
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-- decode buttons
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with decode_output(8 downto 7) select
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button_o_buff <= "11" when "10", -- 00
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"01" when "11", -- 10
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"10" when "01", -- 01
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"00" when "00", -- 11
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"11" when others;
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parity_o_buff <= decode_output(9);
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parity_o <= parity_o_reg;
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process (clk_i,rst_i)
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variable counter : integer range 0 to 1023;
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begin
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if rst_i = '1' then
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char_select <= 0;
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counter := 0;
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--div_clk := '0';
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soft_reset <= '0';
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elsif (clk_i'event and clk_i = '1') then
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-- register the output
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if (ready_o_buff = '1') then
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ud_buff1_reg <= ud_buff1;
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ud_buff2_reg <= ud_buff2;
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lr_buff1_reg <= lr_buff1;
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lr_buff2_reg <= lr_buff2;
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button_o_reg <= button_o_buff;
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parity_o_reg <= parity_o_buff;
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soft_reset <= '1';
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else
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soft_reset <= '0';
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end if;
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counter := counter + 1;
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if (counter = 1023) then
|
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-- this is for simulation
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-- ModelSim does not want to roll over
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if char_select < 3 then
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char_select <= char_select + 1;
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else
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char_select <= 0;
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end if;
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counter := 0;
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end if;
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end if;
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end process;
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-- set output
|
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with char_select select
|
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character_o(0 to 6) <= ud_buff2_reg when 0,
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ud_buff1_reg when 1,
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lr_buff2_reg when 2,
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lr_buff1_reg when 3;
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with char_select select
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anode_ctrl <= "0111" when 0,
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"1011" when 1,
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"1101" when 2,
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"1110" when 3;
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--process
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--begin
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-- wait for 5*period;
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-- rst_i <= '0';
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-- -- begin transmission header
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-- data_i <= '1';
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-- wait for 5*MID_SINGLE;
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--
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-- data_i <= '0';
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-- wait for MID_SINGLE;
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-- -- end transmission header
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-- for i in WORD'left downto 0 loop
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-- data_i <= WORD(i);
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-- wait for MID_SINGLE;
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-- end loop;
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-- data_i <= '1';
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-- wait for MID_SINGLE;
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--
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-- rst_i <= '1';
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-- wait for 5*period;
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--end process;
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process
|
process
|
variable LINE_BUF : LINE;
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variable LINE_BUF : LINE;
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variable IP_BIT : BIT;
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variable IP_BIT : BIT;
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begin
|
begin
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wait for 5*period;
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wait for 5*period;
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