architecture Behavioral of tsb is signal fo1, fo2 : std_logic; signal data0 : std_logic_vector(3 downto 0); signal data1 : std_logic_vector(3 downto 0); signal data2 : std_logic_vector(3 downto 0); signal data3 : std_logic_vector(3 downto 0); begin process(clk) begin if clk'event and clk = '1' then data0
The *entity* tsb is missing. That is causing the error. You can not do this tsb instance:
TSB_1 : tsb port map(clk, Read_Data, tsb_out, First_oct);
without a tsb entity.
Next time consider using direct instances instead of components.
-- Mike Treseler
thank you for your help ,i have solved the problem
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