Tukukkk

I am not very adept at VHDL.

I am trying to make a UART with 9600 BAUD 8-n-1 in VHDL. I am currently receiving a framing error and crash from CoolTerm when trying to communicate through USB.
I tried changing the number of bits in the array to 9 and setting the done bit in the idle state only. It still give me the error.

Transfer : process (Start_Tx, Osc, Value) is



variable Count    : integer range 0 to 10416 ; -- Baud rate is calculated by OSC/Baud giving 10417 cycles

variable Iterator : integer range 0 to 9 ;     -- The iteration variable to control which bit is shown



begin



if rising_edge(Osc) then        -- on a rising edge



    case (Current_State) is     -- determine the current state



        when IDLE =>            

        -- During the idle state the TX line should be held high, the done bit is also idle high 

                Tx_Out  <= '1';

                Tx_Done <= '1';



        -- Start TX is a button input that when pressed will start the transfer      

                if(Start_Tx = '1')



                    then Current_State <= TRANSMIT ;  

                    Tx_Done        <= '0';

                    else Current_State <= IDLE;



                end if;



        when TRANSMIT =>

                    -- the transfer array is used to hold the values to be TX ( currently holding a dummy value for testing)

                    -- the value is as follows 'Start bit' "00010010" transfer data 'Stop Bit'

                    Transfer_Array <= "0000100101"; 





                    -- Transfer out starts with a value of Transfer_Array(0) 

                    -- and will be iterated through every 10417 cycles for 9600 Baud              

                    Tx_Out <= Transfer_Array(Iterator); -- Show digit



                     -- if the count is full Reset and check/ increment the Iterator and change states

                     -- if not increment the counter                



                    if (Count = 10416)                      

                        then Count := 0 ;     

                             if (Iterator = 9)

                                then Iterator := 0 ;

                                     Current_State <= IDLE;

                                else Current_State <= TRANSMIT;

                                     Iterator := Iterator +1; 

                             end if;



                        else Count := Count + 1 ; 

                    end if;

       end case;

 end if;

end process;





end Behavioral;