Vivado 约束文件错误

Question

我正在尝试运行一个模拟 MIPS 的程序，但我遇到了有关约束文件的问题。 the error and warnings I get when synthesizing and Implementing the code 这些是我使用的 Basys 3 板的限制。 此错误也出现在 Vivado 2017 和 Vivado 2016 上。我在两台不同的笔记本电脑上检查过。

# This file is a general .xdc for the Basys3 rev B board
# To use it in a project:
# - uncomment the lines corresponding to used pins
# - rename the used ports (in each line, after get_ports) according to the top level signal names in the project

# Clock signal
set_property PACKAGE_PIN W5 [get_ports clk]                         
    set_property IOSTANDARD LVCMOS33 [get_ports clk]
    #create_clock -add -name sys_clk_pin -period 10.00 -waveform {0 5} [get_ports clk]

# Switches
set_property PACKAGE_PIN V17 [get_ports {sw[0]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[0]}]
set_property PACKAGE_PIN V16 [get_ports {sw[1]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[1]}]
set_property PACKAGE_PIN W16 [get_ports {sw[2]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[2]}]
set_property PACKAGE_PIN W17 [get_ports {sw[3]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[3]}]
set_property PACKAGE_PIN W15 [get_ports {sw[4]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[4]}]
set_property PACKAGE_PIN V15 [get_ports {sw[5]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[5]}]
set_property PACKAGE_PIN W14 [get_ports {sw[6]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[6]}]
set_property PACKAGE_PIN W13 [get_ports {sw[7]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[7]}]
set_property PACKAGE_PIN V2 [get_ports {sw[8]}]                 
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[8]}]
set_property PACKAGE_PIN T3 [get_ports {sw[9]}]                 
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[9]}]
set_property PACKAGE_PIN T2 [get_ports {sw[10]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[10]}]
set_property PACKAGE_PIN R3 [get_ports {sw[11]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[11]}]
set_property PACKAGE_PIN W2 [get_ports {sw[12]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[12]}]
set_property PACKAGE_PIN U1 [get_ports {sw[13]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[13]}]
set_property PACKAGE_PIN T1 [get_ports {sw[14]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[14]}]
set_property PACKAGE_PIN R2 [get_ports {sw[15]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {sw[15]}]


# LEDs
set_property PACKAGE_PIN U16 [get_ports {led[0]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[0]}]
set_property PACKAGE_PIN E19 [get_ports {led[1]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[1]}]
set_property PACKAGE_PIN U19 [get_ports {led[2]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[2]}]
set_property PACKAGE_PIN V19 [get_ports {led[3]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[3]}]
set_property PACKAGE_PIN W18 [get_ports {led[4]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[4]}]
set_property PACKAGE_PIN U15 [get_ports {led[5]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[5]}]
set_property PACKAGE_PIN U14 [get_ports {led[6]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[6]}]
set_property PACKAGE_PIN V14 [get_ports {led[7]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[7]}]
set_property PACKAGE_PIN V13 [get_ports {led[8]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[8]}]
set_property PACKAGE_PIN V3 [get_ports {led[9]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {led[9]}]
set_property PACKAGE_PIN W3 [get_ports {led[10]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[10]}]
set_property PACKAGE_PIN U3 [get_ports {led[11]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[11]}]
set_property PACKAGE_PIN P3 [get_ports {led[12]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[12]}]
set_property PACKAGE_PIN N3 [get_ports {led[13]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[13]}]
set_property PACKAGE_PIN P1 [get_ports {led[14]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[14]}]
set_property PACKAGE_PIN L1 [get_ports {led[15]}]                   
    set_property IOSTANDARD LVCMOS33 [get_ports {led[15]}]


#7 catment display
set_property PACKAGE_PIN W7 [get_ports {cat[0]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {cat[0]}]
set_property PACKAGE_PIN W6 [get_ports {cat[1]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {cat[1]}]
set_property PACKAGE_PIN U8 [get_ports {cat[2]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {cat[2]}]
set_property PACKAGE_PIN V8 [get_ports {cat[3]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {cat[3]}]
set_property PACKAGE_PIN U5 [get_ports {cat[4]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {cat[4]}]
set_property PACKAGE_PIN V5 [get_ports {cat[5]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {cat[5]}]
set_property PACKAGE_PIN U7 [get_ports {cat[6]}]                    
    set_property IOSTANDARD LVCMOS33 [get_ports {cat[6]}]



set_property PACKAGE_PIN U2 [get_ports {an[0]}]                 
    set_property IOSTANDARD LVCMOS33 [get_ports {an[0]}]
set_property PACKAGE_PIN U4 [get_ports {an[1]}]                 
    set_property IOSTANDARD LVCMOS33 [get_ports {an[1]}]
set_property PACKAGE_PIN V4 [get_ports {an[2]}]                 
    set_property IOSTANDARD LVCMOS33 [get_ports {an[2]}]
set_property PACKAGE_PIN W4 [get_ports {an[3]}]                 
    set_property IOSTANDARD LVCMOS33 [get_ports {an[3]}]


#Buttons
set_property PACKAGE_PIN U18 [get_ports {btn[0]}]                       
    set_property IOSTANDARD LVCMOS33 [get_ports {btn[0]}]
set_property PACKAGE_PIN T18 [get_ports {btn[1]}]                       
    set_property IOSTANDARD LVCMOS33 [get_ports {btn[1]}]
set_property PACKAGE_PIN W19 [get_ports {btn[2]}]                       
    set_property IOSTANDARD LVCMOS33 [get_ports {btn[2]}]
set_property PACKAGE_PIN T17 [get_ports btn[3]]                     
    set_property IOSTANDARD LVCMOS33 [get_ports {btn[3]}]
set_property PACKAGE_PIN U17 [get_ports {btn[4]}]                       
    set_property IOSTANDARD LVCMOS33 [get_ports {btn[4]}]

*

**

entity test_env is
    Port ( clk : in  STD_LOGIC;
           btn : in  STD_LOGIC_VECTOR (4 downto 0);
           sw : in  STD_LOGIC_VECTOR (15 downto 0);
           led : out  STD_LOGIC_VECTOR (15 downto 0);
           an : out  STD_LOGIC_VECTOR (3 downto 0);
           cat : out  STD_LOGIC_VECTOR (6 downto 0);
           dp : out  STD_LOGIC);
end test_env;

请帮我解决这个问题！ 我以前没有遇到过这个错误。

编辑： 问题出在 VHDL 代码中。它是为 Nexys 2 板而不是 Basys 3 制作的，并且在尝试应用约束时它不起作用。 谢谢大家！

Answer 1

Vivado 错误告诉你：

“27 个逻辑端口中有 1 个使用 I/O 标准值 'DEFAULT' [...] 问题端口：dp”。

在你的约束文件中，你所有的管脚都是用 LVCMOS33 定义的。由于引脚dp 未定义，Vivado 将为其分配一个“DEFAULT”I/O 标准值。

要解决这个问题，请像其他人一样添加缺失的引脚，并使用与您的板相关的良好引脚号和相同的 I/O 标准值：

set_property PACKAGE_PIN XX [get_ports {dp}]        # replace XX with the pin name defined in your board pinout            
    set_property IOSTANDARD LVCMOS33 [get_ports {dp}]