Vivado的bug与解决方案

• 1. IP的port无法Make External/无法例化
• 2. TPG（Test Pattern Generator）无法通过综合
• 3. ERROR: [filemgmt 56-189] Failed to resolve reference

1. IP的port无法Make External/无法例化

出现状况

在例化迪芝伦的rgb2div的IP端口时，TMDS的端口无法设置为外部端口。

报错信息

CRITICAL WARNING:[BD 41-181] Type specified by the VLNV: 'digilentinc.com:interface:tmds_rtl:1.0', cannot be found. Interface port: 'TMDS_0' cannot be create

解决方案

参考：forum.digilent.com

将迪芝伦开源库的release下载下来，将if文件夹放在与ip文件夹相同的目录下。

2. TPG（Test Pattern Generator）无法通过综合

出现状况

在综合Xilinx hdmi example design时，TPG无法通过综合。

报错信息

[Synth 8-439] module 'design_1_v_tpg_0_0_v_tpg' not found
[Synth 8-285] failed synthesizing module 'design_1_v_tpg_0_0'
[Synth 8-285] failed synthesizing module 'design_1' .

解决方案

1. 检查是否有TPG的license，这是一个免费的ip，但在某些版本上仍需要申请，参考：support.xilinx.com

2. 检查vivado_hls.log文件(它位于project.runs/synth_1/...tpg...)
   Possible reasons:

   1. You are under windows and the path is >256 characters
   2. You have an unexpected character in the project path

3. 如果vivado_hls.log中报告

    source run_ippack.tcl -notrace
    bad lexical cast: source type value could not be interpreted as target
      while executing
    "rdi::set_property core_revision ########## {component component_1}"
        invoked from within
    "set_property core_revision $Revision $core"
        (file "run_ippack.tcl" line 1112)
    ...
    ERROR: [IMPL 213-28] Failed to generate IP.
    INFO: [HLS 200-111] Finished Command export_design
   

   由于TPG是HLS写的ip，那么需要考虑Revision Number Overflow Issue (也就是臭名昭著的Y2K22)，参考support.xilinx.com，通过安装 Patch y2k22_patch-1.2解决问题。

3. ERROR: [filemgmt 56-189] Failed to resolve reference

参考ERROR: [filemgmt 56-189] Failed to resolve reference. Nothing was found in the project to match the name 'aud_pat_gen'，尝试将编译顺序设置为自动。

右键点击顶层文件 --> hierarchical update --> automatic update and compile order