| 4918 |
kaklik |
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-- glue incoming data (from MSB position) |
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-- |
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-- in: D1, D2, D3, D4... |
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-- out: D1D2, D3D4... |
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-- |
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-- |
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-- NOTE: hardwired for 8 + 8, beware if changing dimensions. swap_endianness only works on 8-bits |
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library ieee; |
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use ieee.std_logic_1164.all; |
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library utilities; |
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entity glue_data is |
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port ( |
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i_clk : in std_logic; |
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i_reset_n : in std_logic; |
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i_data : in std_logic_vector( 7 downto 0 ); |
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i_valid : in std_logic; |
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o_enable : out std_logic; |
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o_data : out std_logic_vector( 15 downto 0 ); |
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o_valid : out std_logic; |
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i_enable : in std_logic |
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); |
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end glue_data; |
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architecture behavioral of glue_data is |
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component swap_endianness |
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port ( |
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i_data : in std_logic_vector; |
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o_data : out std_logic_vector |
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); |
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end component; |
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signal s_rst_n : std_logic; |
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signal s_packed_data : std_logic_vector( 15 downto 0 ); |
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begin |
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-- pack data: |
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pack_data_inst : entity utilities.pack_data |
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generic map ( G_OUTPUT_WIDTH => 16 ) |
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port map ( |
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i_clk => i_clk, i_reset_n => i_reset_n, |
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i_data => i_data, i_valid => i_valid, o_enable => o_enable, |
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o_data => s_packed_data, o_valid => o_valid, i_enable => i_enable ); |
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-- and swap the bytes to have the first to come on MSB: |
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swap_endianness_inst : swap_endianness |
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port map( i_data => s_packed_data, o_data => o_data ); |
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end architecture; |
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