start Task 5
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275
05-Morse/Morse/concat/concatenated.vhd
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275
05-Morse/Morse/concat/concatenated.vhd
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-- VHDL Entity Morse.charToMorseController.symbol
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--
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-- Created:
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-- by - francois.francois (Aphelia)
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-- at - 09:13:01 03/29/19
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--
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-- Generated by Mentor Graphics' HDL Designer(TM) 2019.2 (Build 5)
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--
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LIBRARY ieee;
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USE ieee.std_logic_1164.all;
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USE ieee.numeric_std.all;
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ENTITY charToMorseController IS
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GENERIC(
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characterBitNb : positive := 8;
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unitCountBitNb : positive := 3
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);
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PORT(
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morseOut : OUT std_ulogic;
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clock : IN std_ulogic;
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reset : IN std_ulogic;
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charNotReady : IN std_ulogic;
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char : IN std_ulogic_vector (characterBitNb-1 DOWNTO 0);
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startCounter : OUT std_ulogic;
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unitNb : OUT unsigned (unitCountBitNb-1 DOWNTO 0);
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counterDone : IN std_ulogic;
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readChar : OUT std_ulogic
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);
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-- Declarations
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END charToMorseController ;
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--
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-- VHDL Architecture Morse.charToMorseController.fsm
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--
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-- Created:
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-- by - axel.amand.UNKNOWN (WE7860)
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-- at - 14:50:02 28.04.2023
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--
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-- Generated by Mentor Graphics' HDL Designer(TM) 2019.2 (Build 5)
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--
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LIBRARY ieee;
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USE ieee.std_logic_1164.all;
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USE ieee.numeric_std.all;
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ARCHITECTURE fsm OF charToMorseController IS
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TYPE STATE_TYPE IS (
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waitForChar,
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storeChar,
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sendDotStart,
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sendDotWait,
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sendDotSpacerStart,
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sendDotSpacerWait,
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sendDotDotStart,
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sendDotDotWait,
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sendDotDashStart,
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sendDotDashWait,
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sendDashStart,
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sendDashWait,
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sendDahsSpacerStart,
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sendDashSpacerWait,
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sendDashDotStart,
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sendDashDashStart,
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sendDashDotWait,
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sendDashDashWait,
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popChar,
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popChar1
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);
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-- Declare current and next state signals
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SIGNAL current_state : STATE_TYPE;
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SIGNAL next_state : STATE_TYPE;
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BEGIN
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-----------------------------------------------------------------
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clocked_proc : PROCESS (
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clock,
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reset
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)
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-----------------------------------------------------------------
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BEGIN
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IF (reset = '1') THEN
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current_state <= waitForChar;
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ELSIF (clock'EVENT AND clock = '1') THEN
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current_state <= next_state;
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END IF;
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END PROCESS clocked_proc;
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-----------------------------------------------------------------
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nextstate_proc : PROCESS (
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char,
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charNotReady,
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counterDone,
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current_state
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)
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-----------------------------------------------------------------
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BEGIN
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CASE current_state IS
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WHEN waitForChar =>
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IF (charNotReady = '0') THEN
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next_state <= storeChar;
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ELSE
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next_state <= waitForChar;
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END IF;
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WHEN storeChar =>
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IF (character'val(to_integer(unsigned(char))) = 'e' or
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character'val(to_integer(unsigned(char))) = 'i' or
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character'val(to_integer(unsigned(char))) = 'a') THEN
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next_state <= sendDotStart;
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ELSIF (character'val(to_integer(unsigned(char))) = 't' or
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character'val(to_integer(unsigned(char))) = 'n' or
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character'val(to_integer(unsigned(char))) = 'm') THEN
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next_state <= sendDashStart;
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ELSE
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next_state <= popChar1;
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END IF;
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WHEN sendDotStart =>
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next_state <= sendDotWait;
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WHEN sendDotWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDotWait;
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ELSIF (character'val(to_integer(unsigned(char))) = 'e') THEN
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next_state <= popChar1;
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ELSE
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next_state <= sendDotSpacerStart;
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END IF;
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WHEN sendDotSpacerStart =>
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next_state <= sendDotSpacerWait;
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WHEN sendDotSpacerWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDotSpacerWait;
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ELSIF (character'val(to_integer(unsigned(char))) = 'i') THEN
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next_state <= sendDotDotStart;
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ELSE
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next_state <= sendDotDashStart;
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END IF;
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WHEN sendDotDotStart =>
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next_state <= sendDotDotWait;
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WHEN sendDotDotWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDotDotWait;
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ELSE
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next_state <= popChar1;
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END IF;
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WHEN sendDotDashStart =>
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next_state <= sendDotDashWait;
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WHEN sendDotDashWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDotDashWait;
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ELSE
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next_state <= popChar1;
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END IF;
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WHEN sendDashStart =>
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next_state <= sendDashWait;
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WHEN sendDashWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDashWait;
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ELSIF (character'val(to_integer(unsigned(char))) = 't') THEN
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next_state <= popChar1;
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ELSE
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next_state <= sendDahsSpacerStart;
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END IF;
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WHEN sendDahsSpacerStart =>
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next_state <= sendDashSpacerWait;
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WHEN sendDashSpacerWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDashSpacerWait;
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ELSIF (character'val(to_integer(unsigned(char))) = 'i') THEN
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next_state <= sendDashDotStart;
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ELSE
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next_state <= sendDashDashStart;
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END IF;
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WHEN sendDashDotStart =>
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next_state <= sendDashDotWait;
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WHEN sendDashDashStart =>
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next_state <= sendDashDashWait;
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WHEN sendDashDotWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDashDotWait;
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ELSE
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next_state <= popChar1;
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END IF;
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WHEN sendDashDashWait =>
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IF (counterDone = '0') THEN
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next_state <= sendDashDashWait;
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ELSE
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next_state <= popChar1;
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END IF;
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WHEN popChar =>
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IF (counterDone = '1') THEN
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next_state <= waitForChar;
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ELSE
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next_state <= popChar;
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END IF;
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WHEN popChar1 =>
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next_state <= popChar;
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WHEN OTHERS =>
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next_state <= waitForChar;
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END CASE;
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END PROCESS nextstate_proc;
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-----------------------------------------------------------------
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output_proc : PROCESS (
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current_state
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)
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-----------------------------------------------------------------
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BEGIN
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-- Default Assignment
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morseOut <= '0';
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startCounter <= '0';
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unitNb <= (others => '0');
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readChar <= '0';
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-- Combined Actions
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CASE current_state IS
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WHEN sendDotStart =>
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startCounter <= '1';
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WHEN sendDotWait =>
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unitNb <= to_unsigned(1, unitNb'length);
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morseOut <= '1';
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WHEN sendDotSpacerStart =>
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startCounter <= '1';
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WHEN sendDotSpacerWait =>
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unitNb <= to_unsigned(1, unitNb'length);
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WHEN sendDotDotStart =>
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startCounter <= '1';
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WHEN sendDotDotWait =>
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unitNb <= to_unsigned(1, unitNb'length);
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morseOut <= '1';
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WHEN sendDotDashStart =>
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startCounter <= '1';
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WHEN sendDotDashWait =>
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unitNb <= to_unsigned(3, unitNb'length);
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morseOut <= '1';
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WHEN sendDashStart =>
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startCounter <= '1';
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WHEN sendDashWait =>
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unitNb <= to_unsigned(3, unitNb'length);
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morseOut <= '1';
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WHEN sendDahsSpacerStart =>
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startCounter <= '1';
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WHEN sendDashSpacerWait =>
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unitNb <= to_unsigned(1, unitNb'length);
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WHEN sendDashDotStart =>
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startCounter <= '1';
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WHEN sendDashDashStart =>
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startCounter <= '1';
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WHEN sendDashDotWait =>
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unitNb <= to_unsigned(1, unitNb'length);
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morseOut <= '1';
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WHEN sendDashDashWait =>
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unitNb <= to_unsigned(3, unitNb'length);
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morseOut <= '1';
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WHEN popChar =>
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unitNb <= to_unsigned(3, unitNb'length);
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WHEN popChar1 =>
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readChar <= '1';
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startCounter <= '1';
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WHEN OTHERS =>
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NULL;
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END CASE;
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END PROCESS output_proc;
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END fsm;
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