Re: Problem while updating the output---Help required

Hello

I am using ModelSim for simulation. The output is ok when it is 0 but
when it should be one it is X dont care...
however the signal 'clk_tmp_reg' has correct waveform. I am assigning
clk_reg <= clk_tmp_reg to have the output but it is not following the
clk_tmp_reg.

if u need test bench it is below


Library IEEE;
use IEEE.std_logic_1164.ALL;
use IEEE.std_logic_signed.ALL;

entity Power_reg_tb is end;

architecture tb of Power_reg_tb is

component Power_reg
port (
clk, rst : in std_logic;
sys_clk : in std_logic;
core_power_reg : in std_logic_vector(8 downto 0);
core_clock_reg : in std_logic_vector(8 downto 0);
proc_power_bit : in std_logic;
proc_clk_bit : in std_logic;
power_reg : out std_logic_vector(9 downto 0);
clk_reg : out std_logic_vector(9 downto 0)
);
end component;

signal clk, rst : std_logic := '0';
--signal sys_clk : std_logic := '0';
signal core_power_reg : std_logic_vector(8 downto 0) := "000000000";
signal core_clock_reg : std_logic_vector(8 downto 0) := "000000000";
signal proc_power_bit : std_logic := '0';
signal proc_clk_bit : std_logic := '0';
signal pwr_reg : std_logic_vector(9 downto 0);
signal clk_reg : std_logic_vector(9 downto 0);

for U1: Power_reg use entity work.Power_reg(rtl_power_reg);

begin

U1: Power_reg port map ( clk, rst, clk, core_power_reg, core_clock_reg,
proc_power_bit, proc_clk_bit, pwr_reg, clk_reg);

rst <= '1' after 30 ns;
clk <= not(clk) after 10 ns;
--sys_clk <= not(sys_clk) after 20 ns;


process
begin
core_power_reg <= "000000010" after 50 ns,
"001000010" after 100 ns,
"100000010" after 150 ns;

wait for 100 ns;

core_clock_reg <= "000000010" after 50 ns,
"000100010" after 200 ns,
"100000010" after 400 ns;

proc_power_bit <= '1' after 100 ns;

proc_clk_bit <= '1' after 150 ns;


wait;
end process;

end tb;

.

Relevant Pages

  • Re: Postdoc jobs from multiple companies can be found on indeed.com
    ... They simply don't care. ... those dont care about the long ... they hire the best and pay well enough to get it, ... Two world class intelligent interviews, ...
    (sci.research.careers)
  • Re: From my mom
    ... I just don't care. ... i like to ride bikes too but i can only use a recumbant bike ... is ther something about jews and sbarros that i dont know about? ... want to hear another word about Bob Dylan ever again, ...
    (rec.music.dylan)
  • Re: I am used to getting no support
    ... helped me a lot...i dont care what people who know about this say(and ... ourselves from harmful people..if you dont take care of yourself no one ... But I still don't think it's fair to joke about someone's ... think that my mother worries about my problems more than she does about ...
    (alt.med.fibromyalgia)
  • Re: IDPA question
    ... # # Given the number of people who buy a gun ... # # shooting will do and what it will not do - no? ... # # wanting a nation of people that can take care of themselves. ... At this point I really dont care what ...
    (rec.guns)
  • Re: I am used to getting no support
    ... helped me a lot...i dont care what people who know about this say(and ... ourselves from harmful people..if you dont take care of yourself no one ... But I still don't think it's fair to joke about someone's suffering ... think that my mother worries about my problems more than she does about ...
    (alt.med.fibromyalgia)
Loading