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XILINX Foundation F1.5 Build 3.1.1.35 with XCS10PC84 and Digilab XLA

I am attempting to use this XILINX software with this board and chip. In order to test it, I create a simple design that incorporates an AND2 gate, two input buffers, and one output buffer all of which (the input and output buffers) are connected to IPADs. The IPADs are assigned pin numbers on the Schematic with the parameters LOC=Pxx, where xx is 27, 28, and 69. These correspond to SW1, SW2, and LD1.

The design implements correctly, and the bit file is generated successfully. When I transfer the design to the board, NOTHING HAPPENS!

This is a very frustrating problem, and I cannot determine the solution. If I can't get this simple design to work, then the boards are practically worthless.

I installed the two recommended updates for the F1.5 software, ftp://ftp.xilinx.com/pub/swhelp/M1.5_updates/15_service_pack1_nt.zip and ftp://ftp.xilinx.com/pub/swhelp/M1.5_updates/15_sp1_ftp2_nt.zip. I don't know what else I am supposed to upgrade the software with to perhaps fix this problem. I have already tried other miscellaneous patches posted on the site, but none allows this simple design to work.

Has anyone else encountered this problem with XILINX Foundation F1.5, and the Digilab XLA with the XCS10PC84 chip?

Thank you.

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Reply to
Kevin O'Mara
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Does the Done pin go high?

Try something even simpler: just connect an output from the OSC4 block to an output.

Philip

Philip Freidin Fliptronics

Reply to
Philip Freidin

Fix for Digilab XLA and Xilinx Foundation F1.5 Software

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In order to get Xilinx Foundation F1.5 to work properly, it is first necessary to install these two updates:

ftp://ftp.xilinx.com/pub/swhelp/M1.5_updates/15_service_pack1_nt.zip ftp://ftp.xilinx.com/pub/swhelp/M1.5_updates/15_sp1_ftp2_nt.zip

If your DigiLab XLA board fails to run your designs, even after you have transferred them via the parallel cable successfully, then this board modification should remedy the problem.

  1. Find chip U4 on the board (labeled "Japan 00 33 H 74HC125AP"), which is located close to the parallel port.

  1. Pull out the chip.

  2. Find pin #6 on the chip. Orient yourself by locating pin #1, which is on the upper-left side of the chip.

- | | - - | | - - | | - - | | - - | | - -> #6 - | | - - | | -

Figure 1 - Pin #6 on the U4 Chip.

  1. Bend this pin (pin #6) out by extending it parallel to the base of the chip. It should not be able to reach the contacts when reinserted into the board.

  1. Reinsert the chip into the board.

  2. Test the board. It should function properly now.
Reply to
Kevin O'Mara

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