Was missing this file.

bittide-instances/data/constraints/swCcTopologyTest.xdc

@@ -0,0 +1,44 @@
+# SPDX-FileCopyrightText: 2024 Google LLC
+#
+# SPDX-License-Identifier: Apache-2.0
+
+set_property BOARD_PART_PIN sysclk_300_n [get_ports SYSCLK_300_n]
+set_property BOARD_PART_PIN sysclk_300_p [get_ports SYSCLK_300_p]
+set_property BOARD_PART_PIN sma_mgt_refclk_n [get_ports SMA_MGT_REFCLK_C_n]
+set_property BOARD_PART_PIN sma_mgt_refclk_p [get_ports SMA_MGT_REFCLK_C_p]
+
+set_property BOARD_PART_PIN GPIO_LED_0_LS [get_ports spiDone]
+
+set_clock_groups \
+  -asynchronous \
+  -group [get_clocks -include_generated_clocks {SYSCLK_300_p}] \
+  -group [get_clocks -include_generated_clocks {SMA_MGT_REFCLK_C_p}]
+
+# Color   | FPGA pin      | LVLSHFT       | Connection
+# --------|---------------|---------------|------------------
+# Grey    | PMOD0_0       | IO1           | SYNC_OUT (legacy)
+# Blue    | PMOD0_1       | IO2           | FINC
+# Yellow  | PMOD0_2       | IO3           | MOSI/SDIO
+# Red     | PMOD0_3       | IO4           | SCLK
+# White   | PMOD0_4       | IO5           | SYNC_IN (legacy)
+# Purple  | PMOD0_5       | IO6           | FDEC
+# Green   | PMOD0_6       | IO7           | CSB
+# Orange  | PMOD0_7       | IO8           | MISO/SDO
+# Black   | Not connected | Not connected |
+# Brown   | PMOD_GND      | GND           | GND (SPI)
+
+# PMOD1_[0..7]
+set_property -dict {IOSTANDARD LVCMOS12 PACKAGE_PIN AN21} [get_ports {FINC}]
+set_property -dict {IOSTANDARD LVCMOS12 PACKAGE_PIN AH18} [get_ports {MOSI}]
+set_property -dict {IOSTANDARD LVCMOS12 PACKAGE_PIN AM19} [get_ports {SCLK}]
+set_property -dict {IOSTANDARD LVCMOS12 PACKAGE_PIN AF25} [get_ports {FDEC}]
+set_property -dict {IOSTANDARD LVCMOS12 PACKAGE_PIN AE21} [get_ports {CSB}]
+set_property -dict {IOSTANDARD LVCMOS12 PACKAGE_PIN AM17} [get_ports {MISO}]
+
+# PMOD0_3
+# set_property -dict {IOSTANDARD LVCMOS12 PACKAGE_PIN AM19} [get_ports {shared_reset_btn}]
+
+# USER SMA GPIO_P
+set_property -dict {IOSTANDARD LVCMOS18 PACKAGE_PIN H27} [get_ports {SYNC_IN}]
+# USER_SMA_GPIO_N (connected on node 0 to SYNC_IN of all nodes)
+set_property -dict {IOSTANDARD LVCMOS18 PACKAGE_PIN G27} [get_ports {SYNC_OUT}]