For Edge - For Edge - 2.5 English

For Edge - For Edge - 2.5 English - UG1354

Vitis AI Library User Guide (UG1354)

Document ID

UG1354

Release Date

2022-06-15

Version

2.5 English

Use the following steps to set up the host for Edge device development.

Clone the Vitis AI repository:

$ cd ~
$ git clone --recurse-submodules https://github.com/Xilinx/Vitis-AI

Install the cross-compilation system environment.
```
$ cd Vitis-AI/setup/mpsoc
$ ./host_cross_compiler_setup.sh
```
Note: The ~/petalinux_sdk_2022.1 path is recommended for the installation. Regardless of the path you choose for the installation, make sure the path has read-write permissions. In this section, it is installed in ~/petalinux_sdk_2022.1.
Note: For VAI 2.5, the VCK190 production board is based on the 2022.1 release. Use the following commands to install the cross-compiler.
```
$ cd Vitis-AI/setup/vck190
$ ./host_cross_compiler_setup.sh
```
When the installation is complete, follow the prompts and execute the following command:
```
$ source ~/petalinux_sdk_2022.1/environment-setup-cortexa72-cortexa53-xilinx-linux
```
If you close the current terminal, you need to re-execute the above instructions in the new terminal interface.
To compile the library sample in the Vitis AI Library, take classification for example, execute the following command.
```
$ cd ~/Vitis-AI/examples/Vitis-AI-Library/samples/classification
$ bash -x build.sh
```
The executable program is now produced.
To modify the library source code, view, and modify them under ~/Vitis-AI/src/Vitis-AI-Library.
Before compiling the Vitis AI libraries, confirm the compiled output path. The default output path is $HOME/build.

To change the default output path, modify the build_dir_default in cmake.sh. For example, you can change from build_dir_default=$HOME/build/build.${target_info}/${project_name} to build_dir_default=/workspace/build/build.${target_info}/${project_name}.

Note: If you want to modify the build_dir_default, it is suggested to modify $HOME only.
Build the libraries all at once by executing the following command.
```
$ cd ~/Vitis-AI/src/Vitis-AI-Library
$ ./cmake.sh --clean
```
After compiling, you can find the generated libraries in the build_dir_default location. If you want to change the compilation rules, check and change the cmake.sh in the library directory.

Note: All the source codes, samples, demos, and header files can be found in the ~/Vitis-AI/tools/Vitis-AI-Library location.