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Line 79... |
-----------------------------------------------------------------------------
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-----------------------------------------------------------------------------
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signal s_EMPTY, s_FULL : std_logic;
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signal s_EMPTY, s_FULL : std_logic;
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signal s_RX_DATA : std_logic_vector(SIZE_DBUS_GPIF-1 downto 0);
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signal s_RX_DATA : std_logic_vector(SIZE_DBUS_GPIF-1 downto 0);
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signal s_RD_EN, s_WR_EN : std_logic;
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signal s_RD_EN, s_WR_EN : std_logic;
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signal s_TX_DATA : std_logic_vector(SIZE_DBUS_GPIF-1 downto 0);
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signal s_TX_DATA : std_logic_vector(SIZE_DBUS_GPIF-1 downto 0);
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signal s_RDYX : std_logic;
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signal s_ABORT, s_ABORT_TMP : std_logic;
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signal s_ABORT, s_ABORT_TMP : std_logic;
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signal s_RX_DATA_TMP : std_logic_vector(SIZE_DBUS_GPIF-1 downto 0);
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signal s_RX_DATA_TMP : std_logic_vector(SIZE_DBUS_GPIF-1 downto 0);
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signal s_EMPTY_TMP, s_FULL_TMP : std_logic;
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signal s_EMPTY_TMP, s_FULL_TMP : std_logic;
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Line 157... |
-- you want.
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-- you want.
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-- type : sequential
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-- type : sequential
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-- inputs : i_SYSCLK
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-- inputs : i_SYSCLK
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-- outputs: s_RX_DATA_TMP
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-- outputs: s_RX_DATA_TMP
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rx_throtling: process (i_SYSCLK, i_nReset)
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rx_throtling: process (i_SYSCLK, i_nReset)
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variable v_rx_throtle_count : std_logic_vector(6 downto 0); -- counter variable
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-- counter variable
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variable v_rx_throtle_count : std_logic_vector(6 downto 0);
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begin
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begin
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if i_nReset = '0' then
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if i_nReset = '0' then
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v_rx_throtle_count := (others => '0');
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v_rx_throtle_count := (others => '0');
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s_RD_EN <= '0';
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s_RD_EN <= '0';
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elsif i_SYSCLK = '1' and i_SYSCLK'event then
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elsif i_SYSCLK = '1' and i_SYSCLK'event then
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if v_rx_throtle_count >= 63 then
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if v_rx_throtle_count >= 2 then
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s_RD_EN <= '1';
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s_RD_EN <= '1';
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v_rx_throtle_count := (others => '0');
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v_rx_throtle_count := (others => '0');
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else
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else
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v_rx_throtle_count := v_rx_throtle_count + 1;
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v_rx_throtle_count := v_rx_throtle_count + 1;
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s_RD_EN <= '0';
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s_RD_EN <= '0';
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Line 191... |
end process rx_consumer;
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end process rx_consumer;
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-- dummy logic to "use" these signals and avoid that they are removed by
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-- dummy logic to "use" these signals and avoid that they are removed by
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-- the optimizer
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-- the optimizer
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process(s_RX_DATA_TMP, s_EMPTY_TMP, s_FULL_TMP, s_ABORT_TMP, s_RDYX)
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process(s_RX_DATA_TMP, s_EMPTY_TMP, s_FULL_TMP, s_ABORT_TMP)
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variable result : std_logic := '0';
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variable result : std_logic := '0';
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begin
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begin
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result := '0';
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result := '0';
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for i in s_RX_DATA_TMP'range loop
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for i in s_RX_DATA_TMP'range loop
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result := result or s_RX_DATA_TMP(i);
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result := result or s_RX_DATA_TMP(i);
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Line 218... |
-- outputs: s_RX_DATA_TMP
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-- outputs: s_RX_DATA_TMP
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rom_adress_counter: process (i_SYSCLK, i_nReset)
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rom_adress_counter: process (i_SYSCLK, i_nReset)
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begin
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begin
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if i_nReset = '0' then
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if i_nReset = '0' then
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s_rom_adress <= (others => '0');
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s_rom_adress <= (others => '0');
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--DEBUG s_WR_EN <= '1';
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--s_WR_EN <= '1';
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s_WR_EN <= '0';
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s_WR_EN <= '0';
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elsif i_SYSCLK = '1' and i_SYSCLK'event then
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elsif i_SYSCLK = '1' and i_SYSCLK'event then
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if s_rom_adress = 24 then
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if s_rom_adress = 24 then
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s_rom_adress <= s_rom_adress;
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s_rom_adress <= s_rom_adress;
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s_WR_EN <= '0';
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s_WR_EN <= '0';
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else
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else
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s_rom_adress <= s_rom_adress + 1;
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s_rom_adress <= s_rom_adress + 1;
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--DEBUG s_WR_EN <= '1';
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--s_WR_EN <= '1';
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s_WR_EN <= '0';
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s_WR_EN <= '0';
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end if;
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end if;
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end if;
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end if;
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end process rom_adress_counter;
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end process rom_adress_counter;
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