not synthesizable code fragment... error appears at bitstream generation

Discussion in 'VHDL' started by Stefan Oedenkoven, Jan 3, 2005.

  1. hi ng,
    i get the following error-message during "Programming File Generation":

    ERROR:Bitgen:145 - Pin M6 is a persistent pin, but a component exists in
    it's
    IOB. Please rerun par with the persistent pins prohibited from use.
    ERROR:Bitgen:157 - Bitgen will terminate because of the above errors.
    Error: bitgen failed
    Reason:
    Process "Programming File Generation Report" did not complete.

    Here is the evil code fragment:

    pIR : process (CLK, Reset)
    begin
    if Reset = '0' then
    Pending <= '0';
    elsif CLK'event and CLK = '1' then
    if IRQ = '1' then
    Pending <= '1';
    elsif Clear = '1' then -- when i remove "elsif-clause" it
    generates the bitstream without an error
    Pending <= '0'; -- (synthesizing without errors with AND
    without the "elsif-clause")
    end if;
    end if;
    end process;


    Anyone have an idea? We have ISE 6.2.03 here and i don't use an ucf-file
    which assign Pin M6 to the design. An i can't find this PAR Option in the
    PAR-Contextmenu.

    thanks,
    Stefan
    Stefan Oedenkoven, Jan 3, 2005
    #1
    1. Advertising

  2. Stefan Oedenkoven

    zinga Guest

    Re: not synthesizable code fragment... error appears at bitstream ge

    There is nothing wrong with the code. The error must be due to some other
    reason.
    zinga, Jan 4, 2005
    #2
    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. Zak

    bitstream compatibility

    Zak, Oct 21, 2003, in forum: VHDL
    Replies:
    0
    Views:
    445
  2. Dietrich Epp

    Reading a Bitstream

    Dietrich Epp, Nov 18, 2003, in forum: Python
    Replies:
    7
    Views:
    506
    Patrick Maupin
    Nov 21, 2003
  3. lightofspace

    Case range with bitstream: VHDL

    lightofspace, Oct 31, 2006, in forum: VHDL
    Replies:
    0
    Views:
    1,609
    lightofspace
    Oct 31, 2006
  4. quad

    Bitstream programming

    quad, Jan 2, 2007, in forum: VHDL
    Replies:
    0
    Views:
    419
  5. PSN
    Replies:
    1
    Views:
    379
    Chris Fairles
    Dec 13, 2007
Loading...

Share This Page