diff --git a/projects/cn0561/README.md b/projects/cn0561/README.md
index 932bb53d10..703ce846af 100644
--- a/projects/cn0561/README.md
+++ b/projects/cn0561/README.md
@@ -3,6 +3,8 @@
 - Evaluation board product page: TO BE ADDED
 - System documentation: TO BE ADDED
 - HDL project documentation: https://analogdevicesinc.github.io/hdl/projects/cn0561/index.html
+- Evaluation board VADJ for FMC connector: 1.8V
+- Evaluation board VIO for ARDUINO connector: 3.3V
 
 ## Supported parts
 
diff --git a/projects/cn0561/coraz7s/README.md b/projects/cn0561/coraz7s/README.md
index e61c8a702a..8425572c2f 100644
--- a/projects/cn0561/coraz7s/README.md
+++ b/projects/cn0561/coraz7s/README.md
@@ -1,5 +1,9 @@
+<!-- no_build_example, no_dts -->
+
 # CN0561/CORAZ7S HDL Project
 
+- VIO with which it was tested in hardware: 3.3V
+
 ## Building the project
 
 ```
diff --git a/projects/cn0561/de10nano/README.md b/projects/cn0561/de10nano/README.md
index dabd1f7cbc..26c59d8e39 100644
--- a/projects/cn0561/de10nano/README.md
+++ b/projects/cn0561/de10nano/README.md
@@ -1,5 +1,9 @@
+<!-- no_build_example, no_no_os, no_dts -->
+
 # CN0561/DE10NANO HDL Project
 
+- VIO with which it was tested in hardware: 3.3V
+
 ## Building the project
 
 ```
diff --git a/projects/cn0561/zed/README.md b/projects/cn0561/zed/README.md
index c08350bef4..eb37da9cf5 100644
--- a/projects/cn0561/zed/README.md
+++ b/projects/cn0561/zed/README.md
@@ -1,5 +1,9 @@
+<!-- no_build_example, no_dts -->
+
 # CN0561/ZED HDL Project
 
+- VADJ with which it was tested in hardware: 1.8V
+
 ## Building the project
 
 ```
diff --git a/projects/cn0561/zed/system_constr.xdc b/projects/cn0561/zed/system_constr.xdc
index 0f7d44310d..3a2c83d4d0 100644
--- a/projects/cn0561/zed/system_constr.xdc
+++ b/projects/cn0561/zed/system_constr.xdc
@@ -1,33 +1,33 @@
 ###############################################################################
-## Copyright (C) 2022-2023 Analog Devices, Inc. All rights reserved.
+## Copyright (C) 2022-2025 Analog Devices, Inc. All rights reserved.
 ### SPDX short identifier: ADIBSD
 ###############################################################################
 
 # cn0561 SPI configuration interface
-set_property -dict {PACKAGE_PIN N22 IOSTANDARD LVCMOS25} [get_ports cn0561_spi_sdi];         ## FMC_LPC_LA03_P
-set_property -dict {PACKAGE_PIN M22 IOSTANDARD LVCMOS25} [get_ports cn0561_spi_sdo];         ## FMC_LPC_LA04_N
-set_property -dict {PACKAGE_PIN N19 IOSTANDARD LVCMOS25} [get_ports cn0561_spi_sclk];        ## FMC_LPC_LA01_P_CC
-set_property -dict {PACKAGE_PIN J18 IOSTANDARD LVCMOS25} [get_ports cn0561_spi_cs];          ## FMC_LPC_LA05_P
+set_property -dict {PACKAGE_PIN N22 IOSTANDARD LVCMOS18} [get_ports cn0561_spi_sdi];         ## FMC_LPC_LA03_P
+set_property -dict {PACKAGE_PIN M22 IOSTANDARD LVCMOS18} [get_ports cn0561_spi_sdo];         ## FMC_LPC_LA04_N
+set_property -dict {PACKAGE_PIN N19 IOSTANDARD LVCMOS18} [get_ports cn0561_spi_sclk];        ## FMC_LPC_LA01_P_CC
+set_property -dict {PACKAGE_PIN J18 IOSTANDARD LVCMOS18} [get_ports cn0561_spi_cs];          ## FMC_LPC_LA05_P
 
 # cn0561 data interface
 
-set_property -dict {PACKAGE_PIN L18 IOSTANDARD LVCMOS25 IOB TRUE} [get_ports cn0561_dclk];   ## FMC_LPC_CLK0_M2C_P
-set_property -dict {PACKAGE_PIN M20 IOSTANDARD LVCMOS25 IOB TRUE} [get_ports cn0561_din[0]]; ## FMC_LPC_LA00_N_CC
-set_property -dict {PACKAGE_PIN J21 IOSTANDARD LVCMOS25 IOB TRUE} [get_ports cn0561_din[1]]; ## FMC_LPC_LA06_N
-set_property -dict {PACKAGE_PIN P17 IOSTANDARD LVCMOS25 IOB TRUE} [get_ports cn0561_din[2]]; ## FMC_LPC_LA02_P
-set_property -dict {PACKAGE_PIN P18 IOSTANDARD LVCMOS25 IOB TRUE} [get_ports cn0561_din[3]]; ## FMC_LPC_LA02_N
-set_property -dict {PACKAGE_PIN M19 IOSTANDARD LVCMOS25} [get_ports cn0561_odr];             ## FMC_LPC_LA00_P_CC
+set_property -dict {PACKAGE_PIN L18 IOSTANDARD LVCMOS18 IOB TRUE} [get_ports cn0561_dclk];   ## FMC_LPC_CLK0_M2C_P
+set_property -dict {PACKAGE_PIN M20 IOSTANDARD LVCMOS18 IOB TRUE} [get_ports cn0561_din[0]]; ## FMC_LPC_LA00_N_CC
+set_property -dict {PACKAGE_PIN J21 IOSTANDARD LVCMOS18 IOB TRUE} [get_ports cn0561_din[1]]; ## FMC_LPC_LA06_N
+set_property -dict {PACKAGE_PIN P17 IOSTANDARD LVCMOS18 IOB TRUE} [get_ports cn0561_din[2]]; ## FMC_LPC_LA02_P
+set_property -dict {PACKAGE_PIN P18 IOSTANDARD LVCMOS18 IOB TRUE} [get_ports cn0561_din[3]]; ## FMC_LPC_LA02_N
+set_property -dict {PACKAGE_PIN M19 IOSTANDARD LVCMOS18} [get_ports cn0561_odr];             ## FMC_LPC_LA00_P_CC
 
 # cn0561 GPIO lines
 
-set_property -dict {PACKAGE_PIN J20 IOSTANDARD LVCMOS25} [get_ports cn0561_resetn];          ## FMC_LPC_LA16_P
-set_property -dict {PACKAGE_PIN T16 IOSTANDARD LVCMOS25} [get_ports cn0561_pdn];             ## FMC_LPC_LA07_P
-set_property -dict {PACKAGE_PIN M21 IOSTANDARD LVCMOS25} [get_ports cn0561_mode];            ## FMC_LPC_LA04_P
-set_property -dict {PACKAGE_PIN R19 IOSTANDARD LVCMOS25} [get_ports cn0561_gpio0];           ## FMC_LPC_LA10_P
-set_property -dict {PACKAGE_PIN T19 IOSTANDARD LVCMOS25} [get_ports cn0561_gpio1];           ## FMC_LPC_LA10_N
-set_property -dict {PACKAGE_PIN N17 IOSTANDARD LVCMOS25} [get_ports cn0561_gpio2];           ## FMC_LPC_LA11_P
-set_property -dict {PACKAGE_PIN P20 IOSTANDARD LVCMOS25} [get_ports cn0561_gpio4];           ## FMC_LPC_LA12_P
-set_property -dict {PACKAGE_PIN P21 IOSTANDARD LVCMOS25} [get_ports cn0561_gpio5];           ## FMC_LPC_LA12_N
-set_property -dict {PACKAGE_PIN L17 IOSTANDARD LVCMOS25} [get_ports cn0561_gpio6];           ## FMC_LPC_LA13_P
-set_property -dict {PACKAGE_PIN M17 IOSTANDARD LVCMOS25} [get_ports cn0561_gpio7];           ## FMC_LPC_LA13_N
-set_property -dict {PACKAGE_PIN L21 IOSTANDARD LVCMOS25} [get_ports cn0561_pinbspi];         ## FMC_LPC_LA06_P
+set_property -dict {PACKAGE_PIN J20 IOSTANDARD LVCMOS18} [get_ports cn0561_resetn];          ## FMC_LPC_LA16_P
+set_property -dict {PACKAGE_PIN T16 IOSTANDARD LVCMOS18} [get_ports cn0561_pdn];             ## FMC_LPC_LA07_P
+set_property -dict {PACKAGE_PIN M21 IOSTANDARD LVCMOS18} [get_ports cn0561_mode];            ## FMC_LPC_LA04_P
+set_property -dict {PACKAGE_PIN R19 IOSTANDARD LVCMOS18} [get_ports cn0561_gpio0];           ## FMC_LPC_LA10_P
+set_property -dict {PACKAGE_PIN T19 IOSTANDARD LVCMOS18} [get_ports cn0561_gpio1];           ## FMC_LPC_LA10_N
+set_property -dict {PACKAGE_PIN N17 IOSTANDARD LVCMOS18} [get_ports cn0561_gpio2];           ## FMC_LPC_LA11_P
+set_property -dict {PACKAGE_PIN P20 IOSTANDARD LVCMOS18} [get_ports cn0561_gpio4];           ## FMC_LPC_LA12_P
+set_property -dict {PACKAGE_PIN P21 IOSTANDARD LVCMOS18} [get_ports cn0561_gpio5];           ## FMC_LPC_LA12_N
+set_property -dict {PACKAGE_PIN L17 IOSTANDARD LVCMOS18} [get_ports cn0561_gpio6];           ## FMC_LPC_LA13_P
+set_property -dict {PACKAGE_PIN M17 IOSTANDARD LVCMOS18} [get_ports cn0561_gpio7];           ## FMC_LPC_LA13_N
+set_property -dict {PACKAGE_PIN L21 IOSTANDARD LVCMOS18} [get_ports cn0561_pinbspi];         ## FMC_LPC_LA06_P