Any SPI-4.2 Lite v5.1 core generated for Spartan-6 FPGA and used in ISE 11.3/11.4 software will return the following error in Map:
ERROR:LIT:554 - OBUFTDS symbol
f" (output signal=TDat_P(4)) has its I input pin driven by an ODDR2 that is
using its D1 input. However, no ODDR2 was found driving the corresponding T
input pin. This will cause the design to not work in hardware. Please ensure
that OBUFTDS symbol
f" (output signal=TDat_P(4)) has its T input pin driven by an ODDR2.
A patch for this issue is available.
The SPI-4.2 Lite v5.1 Rev1 patch can be downloaded at:
You must take the following steps to install the SPI-4.2 Lite v5.1 Rev1 patch:
1. Prior to installing the update, you must install ISE 11.3/11.4. Software downloads can be found here:
2. Unzip the patch ZIP archive to your Xilinx installation directory as pointed to by your XILINX path variable. The archive will ask whether to overwrite the existing files; select "Yes to All" and allow it to overwrite these files.
09/16/2009 - Initial Release