In order to use the LFSCM80 with a x1 adapater card a special bitstream needs to be used which only powers up 1 channel.  The proceedure to modify the bitstream is documented below.

1. A new pcie_pcs.txt file needs to be created to only power up 1 channel.  Below is the new autoconfig lines that should be used.

ch3 13 03  # Powerup Channel
ch3 00 01
quad 28 50  # Reference clock multiplier
quad 29 10  # FPGA sourced refclk
# quad 02 00  # ref_pclk source is ch0
quad 18 04  # PCI Express Mode
quad 14 7F  # Word Alignment Mask
quad 15 03  # +ve K
quad 16 7C  # -ve K
# quad 0D 97  # Watermark level on CTC
quad 0E 00  # insertion/deletion control of CTC
quad 12 1C  # pattern for CTC match
quad 13 01
quad 01 FF  # Ch3 as MCA clock source
quad 02 30  # Ch3 as ref_p clock source
quad 41 00  # de-assert serdes_rst
ch3 14 90  # Pre-emphasis
ch3 15 10  # +6dB equalization


2. In Poject Navigator the bitstream will need to be regenerated.  Right click on "Generate Bitstream Data" and select "Force One Level".  This will recreate a bitstream for x1.


