signal p_finished : std_logic;
-- parser/scanner
signal do_it, finished : std_logic;
+ --uart_tx
+ signal tx_data : std_logic_vector(7 downto 0);
+ signal tx_new, tx_done, txd : std_logic;
+ --pc_communication
+ signal pc_zeile : hzeile;
+ signal pc_spalte : hspalte;
+ signal pc_get, pc_done : std_logic;
+ signal pc_char : hbyte;
+ --dummy button
+ signal btn_a_int : std_logic;
signal stop : boolean := false;
begin
-- history
- inst : entity work.history(beh)
+ inst : history
port map (
sys_clk => sys_clk,
sys_res_n => sys_res_n,
p_wtake => p_wtake,
p_wdone => p_wdone,
p_write => p_write,
- p_finished => p_finished
+ p_finished => p_finished,
+ -- PC-komm
+ pc_get => pc_get,
+ pc_spalte => pc_spalte,
+ pc_zeile => pc_zeile,
+ pc_char => pc_char,
+ pc_done => pc_done
);
-- display
- inst_disp : entity work.display(beh)
+ inst_disp : display
port map (
sys_clk => sys_clk,
sys_res_n => sys_res_n,
);
-- parser
- inst_parser : entity work.parser(beh)
+ inst_parser : parser
port map (
sys_clk => sys_clk,
sys_res_n => sys_res_n,
);
-- scanner
- inst_scan : entity work.scanner(beh)
+ inst_scan : scanner
port map (
sys_clk => sys_clk,
sys_res_n => sys_res_n,
do_it => do_it,
finished => finished
);
+ --uart_tx
+ inst_uart : uart_tx
+ port map (
+ sys_clk => sys_clk,
+ sys_res_n => sys_res_n,
+ txd => txd,
+ tx_data =>tx_data,
+ tx_new => tx_new,
+ tx_done => tx_done
+ );
+ --pc_communication
+ inst_pc_com : pc_communication
+ port map(
+ sys_clk => sys_clk,
+ sys_res_n => sys_res_n,
+ --button
+ btn_a => btn_a_int,
+ --uart_tx
+ tx_data => tx_data,
+ tx_new => tx_new,
+ tx_done => tx_done,
+ --uart_rx
+ rx_data => (others => '0'),
+ rx_new => '0',
+ -- History
+ pc_zeile => pc_zeile,
+ pc_spalte => pc_spalte,
+ pc_get => pc_get,
+ pc_done => pc_done,
+ pc_char => pc_char
+ );
process
begin
end process;
process
- function ascii2sc (x : hbyte) return hbyte is
- variable y : hbyte;
- begin
- case x is
- when x"30" => y := SC_KP_0;
- when x"31" => y := SC_KP_1;
- when x"32" => y := SC_KP_2;
- when x"33" => y := SC_KP_3;
- when x"34" => y := SC_KP_4;
- when x"35" => y := SC_KP_5;
- when x"36" => y := SC_KP_6;
- when x"37" => y := SC_KP_7;
- when x"38" => y := SC_KP_8;
- when x"39" => y := SC_KP_9;
- when x"2b" => y := SC_KP_PLUS;
- when x"2d" => y := SC_KP_MINUS;
- when x"2a" => y := SC_KP_MUL;
- when x"2f" => y := SC_KP_DIV;
- when x"20" => y := SC_SPACE;
- when x"1c" => y := SC_ENTER;
- when x"0e" => y := SC_BKSP;
- when others => y := x"41";
- end case;
- return y;
- end function;
-
- function valid_char (x : std_logic_vector(7 downto 0)) return boolean is
- variable y : boolean;
- begin
- case x is
- when SC_KP_0 | SC_KP_1 | SC_KP_2 | SC_KP_3 |
- SC_KP_4 | SC_KP_5 | SC_KP_6 | SC_KP_7 |
- SC_KP_8 | SC_KP_9 | SC_KP_PLUS |
- SC_KP_MINUS | SC_KP_MUL |
- SC_KP_DIV | SC_SPACE |
- SC_BKSP | SC_ENTER =>
- y := true;
- when others => y := false;
- end case;
- return y;
- end function;
-
-- textio stuff
use std.textio.all;
file f : text open read_mode is "../../src/history.test";
next mainl;
end if;
- -- jedes mal release
- new_data <= '1';
- data <= x"f0";
- icwait(sys_clk, 1);
- new_data <= '0';
- icwait(sys_clk, 1);
new_data <= '1';
case input(j) is
when nul => data <= ascii2sc(x"1c"); -- $ (enter)
when '!' => data <= ascii2sc(x"0e"); -- ! (backspace)
+ when '/' =>
+ data <= x"e0";
+ icwait(sys_clk, 1);
+ new_data <= '0';
+ icwait(sys_clk, 1);
+ new_data <= '1';
+ data <= SC_KP_DIV;
when others => data <= ascii2sc(std_logic_vector(to_unsigned(character'pos(input(j)),8)));
end case;
- icwait(sys_clk, 1);
- new_data <= '0';
-- ack'en skippen, falls es ein "spezielles" zeichen ist (steht
-- in abhaengigkeit zum vorherigen zeichen)
run_inner := false;
if s_backspace = '1' or s_take = '1' then
icwait(sys_clk, 1);
- s_done <= '1';
wait on s_take; -- = '0'
icwait(sys_clk, 1);
- s_done <= '0';
elsif do_it = '1' then
-- dauert normalweiser noch laenger (parser braucht
-- relativ lange)
icwait(sys_clk, 7);
- finished <= '1';
wait on do_it; -- = '0'
- icwait(sys_clk, 1);
- finished <= '0';
icwait(sys_clk, 850);
run_tc := false;
report "==================";
end loop f_loop;
- icwait(sys_clk, 850);
+ -- uart ist ziemlich langsam...
+ icwait(sys_clk, 1000000000);
stop <= true;
wait;
end process;
+
+ btn_pressed : process is
+ begin
+ btn_a_int <= '1';
+ wait until sys_res_n = '1';
+ icwait(sys_clk, 50000);
+ wait until rising_edge(sys_clk);
+ btn_a_int <= '0';
+ wait for 30 ns;
+ btn_a_int <= '1';
+ wait;
+ end process btn_pressed;
end architecture sim;
projects / hwmod.git / blobdiff