tx_done : in std_logic;
--uart_rx
- rx_data : in std_logic_vector(7 downto 0); --not really required
+ rx_data : in std_logic_vector(7 downto 0);
rx_new : in std_logic;
-- History
architecture beh of pc_communication is
signal push_history, push_history_next : std_logic;
- signal spalte, spalte_next : integer range 1 to 73;
- signal zeile , zeile_next : integer range 1 to 73;
+ signal spalte, spalte_next : integer range 1 to hspalte_max + 1;
+ signal zeile , zeile_next : integer range 1 to hzeile_max + 1;
signal spalte_up, spalte_up_next : std_logic;
signal get, get_next : std_logic;
signal new_i, new_i_next : std_logic;
signal tx_done_i, tx_done_i_next : std_logic;
+ signal tx_data_i, tx_data_i_next : std_logic_vector (7 downto 0);
signal d_done_i : std_logic;
signal s_done, s_done_next : std_logic;
tx_new <= new_i;
d_done_i <= d_done;
tx_done_i_next <= tx_done;
+ tx_data <= tx_data_i;
sync: process (sys_clk, sys_res_n)
begin
zeile <= 1;
get <= '0';
new_i <= '0';
- tx_data <= "00000000";
+ tx_data_i <= "00000000";
spalte_up <= '0';
tx_done_i <= '0';
s_done <= '0';
get <= get_next;
new_i <= new_i_next;
tx_done_i <= tx_done_i_next;
+ tx_data_i <= tx_data_i_next;
spalte_up <= spalte_up_next;
s_done <= s_done_next;
if (char_en = '1') then
end if;
end process async_push_history;
- output_pc : process (state, zeile, spalte, char, tx_done_i, spalte_up, spalte, zeile)
+ output_pc : process (state, zeile, spalte, char, tx_done_i, spalte_up)
begin
get_next <= '0';
new_i_next <= '0';
s_done_next <= '0';
spalte_next <= spalte;
zeile_next <= zeile;
+ tx_data_i_next <= tx_data_i;
- if (spalte_up = '1') then
- if (spalte > 72) then
- if zeile + 1 > 50 then
+ if spalte_up = '1' then
+ if spalte = hspalte_max then
+ if zeile = hzeile_max then
spalte_next <= 1;
zeile_next <= 1;
- s_done_next <= '1'; --lets assume this false
- --assert false severity failure;
+ s_done_next <= '1';
else
spalte_next <= 1;
zeile_next <= zeile + 1;
char_en <= '1';
when FORWARD =>
char_en <= '0';
- tx_data <= char;
+ tx_data_i_next <= char;
new_i_next <= '1';
if (tx_done_i = '1') then
spalte_up_next <= '1';