diff --git a/example/VCU108/fpga_axi/fpga.xdc b/example/VCU108/fpga_axi/fpga.xdc
index d10a54e4a..da71b8ef5 100644
--- a/example/VCU108/fpga_axi/fpga.xdc
+++ b/example/VCU108/fpga_axi/fpga.xdc
@@ -151,4 +151,48 @@ set_property -dict {LOC AM17 IOSTANDARD LVCMOS18 PULLUP true} [get_ports pcie_re
 # 100 MHz MGT reference clock
 create_clock -period 10 -name pcie_mgt_refclk [get_ports pcie_mgt_refclk_p]
 
+# Flash
+#set_property -dict {LOC AM19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[4]}]
+#set_property -dict {LOC AM18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[5]}]
+#set_property -dict {LOC AN20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[6]}]
+#set_property -dict {LOC AP20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[7]}]
+#set_property -dict {LOC AN19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[8]}]
+#set_property -dict {LOC AN18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[9]}]
+#set_property -dict {LOC AR18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[10]}]
+#set_property -dict {LOC AR17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[11]}]
+#set_property -dict {LOC AT20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[12]}]
+#set_property -dict {LOC AT19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[13]}]
+#set_property -dict {LOC AT17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[14]}]
+#set_property -dict {LOC AU17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_dq[15]}]
+#set_property -dict {LOC AR20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[0]}]
+#set_property -dict {LOC AR19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[1]}]
+#set_property -dict {LOC AV20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[2]}]
+#set_property -dict {LOC AW20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[3]}]
+#set_property -dict {LOC AU19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[4]}]
+#set_property -dict {LOC AU18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[5]}]
+#set_property -dict {LOC AV19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[6]}]
+#set_property -dict {LOC AV18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[7]}]
+#set_property -dict {LOC AW18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[8]}]
+#set_property -dict {LOC AY18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[9]}]
+#set_property -dict {LOC AY19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[10]}]
+#set_property -dict {LOC BA19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[11]}]
+#set_property -dict {LOC BA17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[12]}]
+#set_property -dict {LOC BB17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[13]}]
+#set_property -dict {LOC BB19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[14]}]
+#set_property -dict {LOC BC19 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[15]}]
+#set_property -dict {LOC BB18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[16]}]
+#set_property -dict {LOC BC18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[17]}]
+#set_property -dict {LOC AY20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[18]}]
+#set_property -dict {LOC BA20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[19]}]
+#set_property -dict {LOC BD18 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[20]}]
+#set_property -dict {LOC BD17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[21]}]
+#set_property -dict {LOC BC20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[22]}]
+#set_property -dict {LOC BD20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_addr[23]}]
+#set_property -dict {LOC BE20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_region[0]}]
+#set_property -dict {LOC BF20 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_region[1]}]
+#set_property -dict {LOC BF17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_oe_n}]
+#set_property -dict {LOC BF16 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_we_n}]
+#set_property -dict {LOC AW17 IOSTANDARD LVCMOS18 DRIVE 12} [get_ports {flash_adv_n}]
+#set_property -dict {LOC BC23 IOSTANDARD LVCMOS18} [get_ports {flash_wait}]
+