Versuch 2 Hardware vorlaeufig

hardware/signal_processing/sine.vhd

 
 architecture rtl of sine is
 
-    signal current_task_state : work.task.State;
+    signal current_task_state : work.task.State;			--multiple sources
     signal next_task_state : work.task.State;
-    signal index : integer range 0 to work.task.STREAM_LEN;
+    signal index : integer range 0 to work.task.STREAM_LEN; --multiple sources
+	
+	--Selbst angelegte Signal:
+	signal data_valid_flag : std_logic;
+	signal busy_flag : std_logic;
+	signal result_valid_flag : std_logic;
+	signal angle_sig : signed( 31 downto 0);
+	signal ergebnis :  signed( 31 downto 0 );
+
+	--Zustände für die Zustandsmaschine für die Berechnung
+	type CalcState is (
+		CALC_IDLE,
+		CALC_SINE,
+		CALC_STORE_RESULT
+	);
+	--Signale für die Zustandsmaschine für die Berechnung
+	signal current_calc_state : CalcState;
+	signal next_calc_state : CalcState;
 
 begin
+    u_float_sine : entity work.float_sine -- Das hier ist der Core!
+    port map (
+        clk 	=> 		clk,
+        reset 	=>		reset,
+        data_valid =>	data_valid_flag,  --# load new input data
+        busy  	=>		busy_flag, --# generating new result
+        result_valid =>	result_valid_flag, --# flag when result is valid
+        angle 		=>	angle_sig, -- angle in brads (2**size brads = 2*pi radians)
+        sine =>			ergebnis										--Hierzu nachfragen
+    );
+
+	--Bei diesem task nichts ändern!
     task_state_transitions : process ( current_task_state, task_start, index ) is
     begin
         next_task_state <= current_task_state;
         end case;
     end process task_state_transitions;
 
+
+	--Übergangsschaltnetz der Zustandsmaschine für die Berechnung ###Fertig
+	calc_state_transitions: process (all) is
+	begin
+		next_calc_state <= current_calc_state; 
+		case current_calc_state is
+			when CALC_IDLE=>
+				if (current_task_state= work.task.TASK_RUNNING) then 
+					next_calc_state <= CALC_SINE;
+				end if;
+			when CALC_SINE =>
+				if (result_valid_flag = '1') then
+					next_calc_state <= CALC_STORE_RESULT;
+				end if;
+			when CALC_STORE_RESULT =>
+				next_calc_state <= CALC_IDLE;
+		end case;
+	end process calc_state_transitions;
+
+
+	--Zustandsspeicher und Ausgangsschaltnetz zu der Steuerung der Tasks 
+	task_sync : process (clk, reset) is
+	begin
+		if (reset = '1') then
+			current_task_state <= work.task.TASK_IDLE;
+			
+		elsif (rising_edge( clk)) then
+			current_task_state <= next_task_state; 
+			case next_task_state is
+				when work.task. TASK_IDLE => null;
+				when work.task. TASK_RUNNING => null; 
+				when work.task. TASK_DONE => null;
+			end case;
+		end if;
+	end process task_sync;
+
+	--Zustandsspeicher und Ausgangsschaltnetz zu Berechnung 
+	sync : process (clk, reset) is
+	begin
+		if (reset = '1') then
+			index <= 0;
+			current_calc_state <= CALC_IDLE;
+			ergebnis <= (others => '0'); 
+			signal_write <= '0';
+		elsif (rising_edge( clk)) then
+			current_calc_state <= next_calc_state; 
+			case next_calc_state is 
+				when CALC_IDLE =>
+					data_valid_flag <= '0';
+					signal_write <= '0';
+				when CALC_SINE => 				--hier Berechnung mit IP Core?
+					data_valid_flag <= '1';
+				when CALC_STORE_RESULT =>
+					data_valid_flag <= '0';
+					index <= index + 1;
+					signal_write <= '1';
+					signal_writedata <= std_logic_vector( ergebnis ); --Ergebnis schreiben, ergebnis direkt aus IP Core
+			end case;
+		end if;
+	end process sync;
+	task_state <= current_task_state;
+
+--Altes Programm
     sync : process ( clk, reset ) is
     begin
         if ( reset = '1' ) then

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