Help in ISE Error: Xst:779

Discussion in 'VHDL' started by begin_ner, Jan 3, 2008.

  1. begin_ner

    begin_ner

    Joined:
    Dec 31, 2007
    Messages:
    2
    Hi pple
    this is a part of my coding
    and i got a serious error while trying to synthesize it
    the line which was highlighted in red
    ERROR stated

    ERROR:Xst:779 - "D:/PS2_control/PS2_control/PS2_Ctrl.vhd" line 77: 'Others' is in unconstrained array aggregate.

    process (Clk,Reset)
    begin
    if Reset='1' then
    PS2_Datr <= '0';
    PS2_Clk_f <= '0';
    Filter <= (others=>'0');
    Fall_Clk <= '0';
    elsif rising_edge (Clk) then
    PS2_Datr <= PS2_Data and PS2_Data; -- also turns 'H' into '1'
    Fall_Clk <= '0';
    Filter <= (PS2_Clk and PS2_CLK) & Filter(Filter'high downto 1);

    if Filter = Filter_t'(others=>'1') then
    PS2_Clk_f <= '1';
    elsif Filter = Filter_t'(others=>'0') then
    PS2_Clk_f <= '0';
    if PS2_Clk_f = '1' then
    Fall_Clk <= '1';
    end if;
    end if;
    end if;
    end process;

    up till now i still cannot find any solutions to it. probably cause im a beginner in FPGA too..
     
    begin_ner, Jan 3, 2008
    #1
    1. Advertising

Want to reply to this thread or ask your own question?

It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can ask your own questions on the forum.
Similar Threads
  1. Ivan C.
    Replies:
    4
    Views:
    940
    David Bishop
    Nov 21, 2004
  2. Phil Tomson
    Replies:
    3
    Views:
    1,457
    Phil Tomson
    Feb 16, 2005
  3. Mark McDougall

    ISE WARNING Xst:647

    Mark McDougall, Nov 29, 2007, in forum: VHDL
    Replies:
    10
    Views:
    2,053
    awellfriend4u@gmail.com
    Dec 5, 2007
  4. oppenheimer

    ERROR:Xst:827 HELP Please!

    oppenheimer, Jun 3, 2008, in forum: VHDL
    Replies:
    2
    Views:
    2,508
    oppenheimer
    Jun 3, 2008
  5. suraj.jain
    Replies:
    0
    Views:
    522
    suraj.jain
    Jun 21, 2009
Loading...

Share This Page