Quartus II: warum wird mein Zählernicht synthetisiert?

Hallo!

Ich verstehe nicht, warum mir Quatus II den Zähler puls_spacing_counter 
in folgendem process nicht synthetisieren will:

1

process(clk)

2

begin

3

    if(clk'event and clk = '1') then

4

5

        if(is_clk_out_m_in = '0') then

6

            if(conv_integer(imp_data_from_sr) > 0) then

7

                puls_data_complete(10 downto 0) <= imp_data_from_sr;

8

                puls_data_complete(23 downto 11) <= conv_std_logic_vector(puls_spacing_counter, 13);

9

                reset_counter <= '1';

10

                get_puls_data_complete <= '1';

11

            end if;

12

        end if;

13

14

        if(is_clk_out_m_in = '1') then

15

            if(reset_counter = '1') then

16

                puls_spacing_counter <= 0;

17

                get_puls_data_complete <= '0';

18

            else

19

                puls_spacing_counter <= puls_spacing_counter + 1;

20

            end if;

21

        end if;

22

    end if;

23

end process;

Mehr Prozesse hat das Entity nicht in seiner Architektur. Es bekommt den 
Vector imp_data_from_sr von einer integrierten Komponete, und es soll 
nun dieser Vector mit dem Inhalt des Zählers in einen neuen Vector 
(puls_data_complete) geschrieben werden.
Leider kommt Quartus ständig mit diesen Warnungen, und die Bits 23-11 in 
puls_data_complete bleiben immer leer.

Warning: Reduced register "reset_counter" with stuck data_in port to 
stuck value VCC
Warning: Reduced register "puls_spacing_counter[0]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[2]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[3]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[4]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[5]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[6]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[7]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[8]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[9]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[10]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[11]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[12]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[11]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[13]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[14]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[15]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[16]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[17]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[18]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[19]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[20]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[21]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[22]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[23]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_spacing_counter[1]" with stuck data_in 
port to stuck value GND
Warning: Reduced register "puls_data_complete[12]" with stuck data_in 
port to stuck value GND

Was mache ich hier falsch?

Gruß
Maik