vivado生成bit流失败的解决办法

柔情只为你懂 2023-07-13 08:12 12阅读 0赞

vivado2017.4生成比特流失败，报错信息：

\[Drc 23-20\] Rule violation (NSTD-1) Unspecified I/O Standard - 4 out of 142 logical ports use I/O standard (IOSTANDARD) value ‘DEFAULT’, instead of a user assigned specific value. This may cause I/O contention or incompatibility with the board power or connectivity affecting performance, signal integrity or in extreme cases cause damage to the device or the components to which it is connected. To correct this violation, specify all I/O standards. This design will fail to generate a bitstream unless all logical ports have a user specified I/O standard value defined. To allow bitstream creation with unspecified I/O standard values (not recommended), use this command: set\_property SEVERITY \{Warning\} \[get\_drc\_checks NSTD-1\]. NOTE

When using the Vivado Runs infrastructure (e.g. launch\_runs Tcl command), add this command to a .tcl file and add that file as a pre-hook for write\_bitstream step for the implementation run. Problem ports: USBIND\_0\_port\_indctl\[1:0\], USBIND\_0\_vbus\_pwrfault, USBIND\_0\_vbus\_pwrselect.

**解决办法：**  
新建记事本，添加以下三句：

set\_property SEVERITY \{Warning\} \[get\_drc\_checks NSTD-1\]

set\_property SEVERITY \{Warning\} \[get\_drc\_checks RTSTAT-1\]

set\_property SEVERITY \{Warning\} \[get\_drc\_checks UCIO-1\]

重命名为 name.tcl文件（确定后缀格式有效）

在进入vivado软件，在generate bitstream 界面如下，右键进入setting  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lvaGUxMg_size_16_color_FFFFFF_t_70]

点击tcl.pre

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lvaGUxMg_size_16_color_FFFFFF_t_70 1]

选中刚才配置的name.tcl  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lvaGUxMg_size_16_color_FFFFFF_t_70 2]

点击OK，就行了，之后就可以成功生成bit流了。

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