We have a Blackfin FPGA extender board which we plan to use to allow a Blackfin to place data in the memory of a number of TigerSHARC processors on TS201S boards.
There is a white paper / E note that discusses an FPGA interface to the link ports of the TigerSHARC. The link port is 8 differential data pairs and a clock. Our first prototype plan is to use 9 GPIO pins for the 8 data pairs and clocks and translate to a differential pair using the FPGA extender board. Most of the Blackfin lines seem to come over that "U connector" to the FPGA extender board.
There is an example with the FPGA extender kit that does a stand-alone "twiddle the lights" program, but not much more. Is there an example that demonstrates how to code so that the output of the GPIO lines from the Blackfin controlling the extender board actually go into the FPGA extender board?