VHDL - сравнение строк. Опции

[Jenya7]

Есть сигналы

Код

type str_t is array(integer range<>) of std_logic_vector(7 downto 0);

signal g_command : str_t(0 to COM_SIZE-1);

type commands is array(integer range<>) of str_t(0 to COM_SIZE-1);
constant commands_list : commands(0 to COM_COUNT-1) :=
(
    0 => (0 => x"73", 1 => x"74", 2 => x"6F", 3 => x"70", 4 => x"00", 5 => x"00"), --stop
    1 => (0 => x"66", 1 => x"77", 2 => x"64", 3 => x"00", 4 => x"00", 5 => x"00"), --fwd
    2 => (0 => x"72", 1 => x"65", 2 => x"76", 3 => x"00", 4 => x"00", 5 => x"00"), --rev
    3 => (0 => x"01", 1 => x"02", 2 => x"03", 3 => x"00", 4 => x"00", 5 => x"00")  --123
);

Вижу в g_command - '123'.
Сравниваю

Код

if(g_command = commands_list(3)) then
    received_char <= X"03";
else
   received_char <= X"01";
end if;

Получаю received_char <= X"01";
Нужно сравнивать чар-чар? иначе никак?

[Jenya7]

у меня такое несчастье - не заходит в when X"20"

Код

when ST_PARSE_STR =>  --get command and arguments from the string
          
              if (char_idx < RX_BUF_SIZE) then
                    
                    case rx_uart_buf(char_idx) is
                    
                         when X"0D"  =>  --end of string \r
                               DBG_OUT <= "1000000100";
                               Parse1State <= ST_PARSE_VALIDATE;
                                    
                          when X"20"  =>  --spase - arguments delimiter
                              DBG_OUT <= "1110000111";
                                            
                          when others =>    
                               DBG_OUT <= "1000000111";
                                    
                    
                    char_idx := char_idx + 1;
                
              else
                    Parse1State <= ST_PARSE_IDLE;
             end if;

я посылаю 123 567\r - в ASCII table - пробел x20 но я не попадаю в этот кейс.

ой. мой косяк. извиняюсь.

Сообщение отредактировал Jenya7 - Apr 24 2018, 14:08