xkISP 开源IP核的使用

官方地址：http://xilinx.eetrend.com/blog/2022/100561857.html

以下介绍使用方法

git clone https://github.com/openasic-org/xkISP.git
cd xkISP
//在这一步的时候修改 setup_env.sh 添加自己的vivado核vitis路径
source setup_env.sh
cd tv
./isp -i input.raw -c hls_param.txt
cd tcl
make

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在这个过程中会遇到几个错误

1. HLS ERROR:[IMPL 213-28] Failed to generate IP

解决方法：

1. 从官网下载一个补丁：https://support.xilinx.com/s/article/76960?language=en_US
   将文件下载到vivado的安装路径下
   
   然后根据自己的版本，执行命令

* 2014 - 2018 (inclusive)
  You must have python version 2.7.5 or later installed.
  Assuming python is in the path, this patch can be applied to both Windows and Linux by running:
  python y2k22_patch\patch.py

* 2019.1
  On Windows run:
  Vivado\2019.1\tps\win64\python-2.7.5\python.exe y2k22_patch\patch.py

  On Linux run:
  export LD_LIBRARY_PATH=$PWD/Vivado/2019.1/tps/lnx64/python-2.7.5/lib/
  Vivado/2019.1/tps/lnx64/python-2.7.5/bin/python2.7 y2k22_patch/patch.py

2019.2
  On Windows run:
  Vivado\2019.2\tps\win64\python-2.7.5\python.exe y2k22_patch\patch.py

  On Linux run:
  export LD_LIBRARY_PATH=$PWD/Vivado/2019.2/tps/lnx64/python-2.7.5/lib/
  Vivado/2019.2/tps/lnx64/python-2.7.5/bin/python y2k22_patch/patch.py

* 2020.1
  On Windows run:
  Vivado\2020.1\tps\win64\python-2.7.16\python.exe y2k22_patch\patch.py

  On Linux run:
  export LD_LIBRARY_PATH=$PWD/Vivado/2020.1/tps/lnx64/python-2.7.16/lib/
  Vivado/2020.1/tps/lnx64/python-2.7.16/bin/python y2k22_patch/patch.py

* 2020.2
  On Windows run:
  Vivado\2020.2\tps\win64\python-3.8.3\python.exe y2k22_patch\patch.py

  On Linux run:
  export LD_LIBRARY_PATH=$PWD/Vivado/2020.2/tps/lnx64/python-3.8.3/lib/
  Vivado/2020.2/tps/lnx64/python-3.8.3/bin/python y2k22_patch/patch.py

* 2020.3
  On Windows run:
  Vivado\2020.3\tps\win64\python-3.8.3\python.exe y2k22_patch\patch.py

  On Linux run:
  export LD_LIBRARY_PATH=$PWD/Vivado/2020.3/tps/lnx64/python-3.8.3/lib/
  Vivado/2020.3/tps/lnx64/python-3.8.3/bin/python3 y2k22_patch/patch.py

* 2021.1
  On all Linux Flavors (Centos, RHEL, Ubuntu 18,… ) where python version 3.8.3 used, follow the  instructions below
     export LD_LIBRARY_PATH=$PWD/Vivado/2021.1/tps/lnx64/python-3.8.3/lib/
     Vivado/2021.1/tps/lnx64/python-3.8.3/bin/python3 y2k22_patch/patch.py
  On Windows run:
    Vivado\2021.1\tps\win64\python-3.8.3\python.exe y2k22_patch\patch.py


* 2021.2
  On all Linux Flavors (Centos, RHEL, Ubuntu 18,… ) where python version 3.8.3 used, follow the  instructions below
     export LD_LIBRARY_PATH=$PWD/Vivado/2021.2/tps/lnx64/python-3.8.3/lib/
     Vivado/2021.2/tps/lnx64/python-3.8.3/bin/python3 y2k22_patch/patch.py
  On Windows run:
    Vivado\2021.2\tps\win64\python-3.8.3\python.exe y2k22_patch\patch.py
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2. -bash:export:’ ’ :not a valid identifier

export后面有空格，删掉就好了

2. ERROR: System recieved a signal named SIGSEGV and the program has to stop immediately!

这个是因为tcl文件中有相对路径，必须使用绝对路径，所以在tcl文件夹中的所有tcl文件都需要改成绝对路径