diff --git a/projects/common/pzsdr/pzsdr_system_bd.tcl b/projects/common/pzsdr/pzsdr_system_bd.tcl
index 1eca33b75..6c442708f 100644
--- a/projects/common/pzsdr/pzsdr_system_bd.tcl
+++ b/projects/common/pzsdr/pzsdr_system_bd.tcl
@@ -153,7 +153,6 @@ ad_connect  sys_concat_intc/In0 ps_intr_00
 # interconnects
 
 ad_cpu_interconnect 0x41600000 axi_iic_main
-ad_mem_hp0_interconnect sys_cpu_clk sys_ps7/S_AXI_HP0
 
 # module ad9361
 
diff --git a/projects/common/pzsdr/pzsdr_system_constr.xdc b/projects/common/pzsdr/pzsdr_system_constr.xdc
index 62ed4c56f..5fcd81103 100644
--- a/projects/common/pzsdr/pzsdr_system_constr.xdc
+++ b/projects/common/pzsdr/pzsdr_system_constr.xdc
@@ -70,6 +70,21 @@ set_property  -dict {PACKAGE_PIN  A12  IOSTANDARD LVCMOS18} [get_ports spi_miso]
 set_property  -dict {PACKAGE_PIN  AF24 IOSTANDARD LVCMOS25 PULLTYPE PULLUP} [get_ports iic_scl]           ; ## IO_L5P_T0_13             
 set_property  -dict {PACKAGE_PIN  AF25 IOSTANDARD LVCMOS25 PULLTYPE PULLUP} [get_ports iic_sda]           ; ## IO_L5N_T0_13             
 
+# gpio
+
+set_property  -dict {PACKAGE_PIN  J3   IOSTANDARD LVCMOS18} [get_ports gpio_bd[0]]                        ; ## (pb)  IO_L12N_T1_MRCC_33       
+set_property  -dict {PACKAGE_PIN  D8   IOSTANDARD LVCMOS18} [get_ports gpio_bd[1]]                        ; ## (pb)  IO_L8N_T1_34             
+set_property  -dict {PACKAGE_PIN  F9   IOSTANDARD LVCMOS18} [get_ports gpio_bd[2]]                        ; ## (pb)  IO_L9P_T1_DQS_34         
+set_property  -dict {PACKAGE_PIN  E8   IOSTANDARD LVCMOS18} [get_ports gpio_bd[3]]                        ; ## (pb)  IO_L9N_T1_DQS_34         
+set_property  -dict {PACKAGE_PIN  A8   IOSTANDARD LVCMOS18} [get_ports gpio_bd[4]]                        ; ## (led) IO_L17N_T2_34            
+set_property  -dict {PACKAGE_PIN  W14  IOSTANDARD LVCMOS25} [get_ports gpio_bd[5]]                        ; ## (led) IO_0_12                  
+set_property  -dict {PACKAGE_PIN  W17  IOSTANDARD LVCMOS25} [get_ports gpio_bd[6]]                        ; ## (led) IO_25_12                 
+set_property  -dict {PACKAGE_PIN  Y16  IOSTANDARD LVCMOS25} [get_ports gpio_bd[7]]                        ; ## (led) IO_L23P_T3_12            
+set_property  -dict {PACKAGE_PIN  Y15  IOSTANDARD LVCMOS25} [get_ports gpio_bd[8]]                        ; ## (dip) IO_L23N_T3_12            
+set_property  -dict {PACKAGE_PIN  W16  IOSTANDARD LVCMOS25} [get_ports gpio_bd[9]]                        ; ## (dip) IO_L24P_T3_12            
+set_property  -dict {PACKAGE_PIN  W15  IOSTANDARD LVCMOS25} [get_ports gpio_bd[10]]                       ; ## (dip) IO_L24N_T3_12            
+set_property  -dict {PACKAGE_PIN  V19  IOSTANDARD LVCMOS25} [get_ports gpio_bd[11]]                       ; ## (dip) IO_0_13                  
+
 # clocks
 
 create_clock -name rx_clk       -period  4 [get_ports rx_clk_in_p]