afelion

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About afelion

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  1. afelion

    Papilio Pro: Getting started?

    Thank you Jack and alvieboy The issue with clock is resolved if I run the clock wizard and copy the code into my project. However, I got the same problem with other clock-like pins since I need to count how long these pins are at high/low level. Where could I find source code of examples for this board? Kind regards
  2. afelion

    Papilio Pro: Getting started?

    Thanks, Jack While trying to port my app to Spartan6 using provided ucf file from Papilio Pro, i got this error: ERROR:Place:1108 - A clock IOB / BUFGMUX clock component pair have been found that are not placed at an optimal clock IOB / BUFGMUX site pair. The clock IOB component <clk> is placed at site <P94>. The corresponding BUFG component <clk_BUFGP/BUFG> is placed at site <BUFGMUX_X3Y13>. There is only a select set of IOBs that can use the fast path to the Clocker buffer, and they are not being used. You may want to analyze why this problem exists and correct it. If this sub optimal condition is acceptable for this design, you may use the CLOCK_DEDICATED_ROUTE constraint in the .ucf file to demote this message to a WARNING and allow your design to continue. However, the use of this override is highly discouraged as it may lead to very poor timing results. It is recommended that this error condition be corrected in the design. A list of all the COMP.PINs used in this clock placement rule is listed below. These examples can be used directly in the .ucf file to override this clock rule. < NET "clk" CLOCK_DEDICATED_ROUTE = FALSE; >Setting NET "clk" CLOCK_DEDICATED_ROUTE = FALSE; can eliminate the error but the warning is still be shown. Do you know why? Regards
  3. afelion

    Papilio Pro: Getting started?

    You're right. The USB cable is dodgy. Thank you all. By the way, I'm a Linux enthusiast so does anyone have any advise about working with this board on Linux. I have read that xc3sprog is more reliable than papilio-prog, isn't it? Cheers
  4. afelion

    Papilio Pro: Getting started?

    Thanks for your reply. I'm using Debian Wheezy, having full access permission. 'dmesg' prints nothing when I plug the board in and the board/ftdi driver name is not shown from 'lsusb' so I don't think it is a permission issue. By Windows, I mean running native Windows XP on my laptop. The Loader and driver are installed but got the same error. Do I need to set a switch, button or something?
  5. afelion

    Papilio Pro: Getting started?

    I've just got the board but my laptop couldn't recognize it as it does not display in `lsusb` and ./papilio-prog shows this error: Could not access USB device 0403:6010. Same error message when using Papiliio Loader in Windows. The board however has blinking led so I assume it works properly. Do I miss anything here?