Error message

[Marcus]

I am new to VHDL and already have a problem. I get a error message and
it dont have an idea what I am doing wrong. I want to use 2 processes
and probably some more later. When the first process updates the
counter I want to do something in the second process. The lines I have
in the second process are just for testing and will be changed later.

I get the following error message when I translate the code.
Synsthesis is ok.

ERROR:NgdBuild:605 - logical root block 'generator' with type
'generator' is unexpanded. Symbol 'generator' is not supported in
target 'xpla3'.

CODE:

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;

-- Uncomment the following lines to use the declarations that are
-- provided for instantiating Xilinx primitive components.
--library UNISIM;
--use UNISIM.VComponents.all;

entity generator is
Port ( reset : in std_logic;
clock : in std_logic;
data : out std_logic;
run : in std_logic;
mode : in std_logic_vector(1 downto 0));
end entity generator;

architecture Behavioral of generator is
signal counter :std_logic_vector(5 downto 0);
signal header_c :std_logic_vector(3 downto 0);
signal data_c :std_logic_vector(4 downto 0);
signal checksum_c :std_logic_vector(3 downto 0);
signal running :std_logic;
begin

clock_count: process (clock, reset)
begin
if reset = '1' then
counter <= "000000";
header_c <="0000";
running <= '0';
data_c <= "00000";
checksum_c <= "0000";
elsif rising_edge(clock) then
counter <= counter + 1;
end if ;
end process clock_count;

start : process (counter)
begin
if counter = "100011" then
counter <= "000000";
else
counter <= counter + 1;
end if;
end process start;
end Behavioral;

 

[Mike Treseler]

I am new to VHDL and already have a problem. I get a error message and
it dont have an idea what I am doing wrong.

Everybody shorts process outputs together the first time out.
You are driving the "counter" port from more than one process.
Merge the reset clause into your second process, then delete
the first process.

-- Mike Treseler