使用Vivado和PetaLinux 2019.2的Ultra96 v1 ResNet-50例程

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使用Vivado和PetaLinux 2019.2的Ultra96 v1 ResNet-50例程

Vivado步骤

Reference Design Matrix

The Hardware design is simplified by a Tcl script which generates the Block Diagram, the wrapper, and the constraints file. Finally, it generates the bitfile.

1. Download the file Resnet50_Ultra96.zip. This contains the generating Tcl script and the DPU IP.
2. Extract the archive
3. Open Vivado 2019.2 and change the directory to project_path/Resnet50_Ultra96v1_2019_2/pl. This will be the new working directory.
4. In the Vivado TCL console run the following:
   cd project_path/Resnet50_Ultra96v1_2019_2/pl
   source ./scripts/Resnet50_ultra96.tcl
   注意这里是指在Vivado TCL console输入，不是在DOS或Ubuntu输入，否则就会出现下面的错误：
   bash: ./scripts/Resnet50_ultra96.tcl: line 141: syntax error near unexpected token }' 'ash: ./scripts/Resnet50_ultra96.tcl: line 141:} else {
   

原理图

地址页

编译运行

DPU配置

john@john-virtual-machine:~/ultra96/Resnet50_Ultra96v1_2019_2$ export TRD_HOME=$(pwd)john@john-virtual-machine:/ultra96/Resnet50_{U}ltra96v{1}_{2}019_2$ export PET_PROJ=“ultra96v1”
john@john-virtual-machine:~/ultra96/Resnet50_Ultra96v1_2019_2$ cd $TR{D}_{H}OME/apu/resnet50_{u}ltra96v{1}_{b}sp/$PET_PROJ/

Petalinux步骤

Building the PetaLinux project requires the following sequence of operations:

1. PetaLinux project creation
2. Configuring the PetaLinux project with HW design
3. Modification of the device tree to include the DPU
4. Modification of the list of packages
5. Adding the DNNDK library
6. Configuring the PetaLinux rootfs and enabling the necessary packages, apps, modules
7. Setting the auto loading DPU driver
8. Building the PetaLinux project
9. Creating the BOOT.BIN for the SD card.

The Petalinux project is simplified by the presence of the resnet50_ultra96.bsp file that has the steps from 2 to 8 already completed.

Petalinux命令

Start this process by loading the PetaLinux 2019.2 environment.
Set two useful variables
cd <path_to_working_directory>
export TRD_HOME=$(pwd)
export PET_PROJ=“ultra96v1”
Create the PetaLinux project
cd $TRD_HOME/apu/resnet50_ultra96v1_bsp/
petalinux-create -t project -s resnet50_ultra96.bsp -n $PET_PROJ --force
Configure the PetaLinux project with HW design
cd $TR{D}_{H}OME/apu/resnet50_{u}ltra96v{1}_{b}sp/$PET_PROJ/
petalinux-config --get-hw-description=$TRD_HOME/pl/prj/ultra96/ --silentconfig

Build the PetaLinux project
petalinux-build

Create BOOT.BIN and image.ub for the SD card
cd $TR{D}_{H}OME/apu/resnet50_{u}ltra96v{1}_{b}sp/$PET_PROJ/images/linux
petalinux-package --boot --fsbl zynqmp_fsbl.elf --u-boot u-boot.elf --pmufw pmufw.elf --fpga system.bit --force
cp BOOT.BIN image.ub $TRD_HOME/SDcard

ResNet-50应用

Generate a new SDK
cd $TR{D}_{H}OME/apu/resnet50_{u}ltra96v{1}_{b}sp/$PET_PROJ/
petalinux-build -s
john@john-virtual-machine:~/ultra96/Resnet50_Ultra96v1_2019_2/apu/resnet50_ultra96v1_bsp/ultra96v1$ cp $TR{D}_{H}OME/apu/resnet50_{u}ltra96v{1}_{b}sp/$PET_PROJ/images/linux/sdk.sh $TRD_HOME/apu/apps/
Extract the SDK
cd $TRD_HOME/apu/apps

chmod 777 sdk.sh
john@john-virtual-machine:~/ultra96/Resnet50_Ultra96v1_2019_2/apu/apps$ ./sdk.sh -d ./sdk -y

Build the ResNet-50 example
The original main.cc and Makefile come from xilinx_dnndk_v3.1
However the main.cc in xilinx_dnndk_v3.1/Ultra96 does not use the DPU SoftMax.
A fixed version of main.cc and Makefile have been included in this LFAR and can be found in $TRD_HOME/apu/apps/resnet50
ResNet-50 can be compiled in a terminal configured for Vivado 2019.2.
unset LD_LIBRARY_PATH
. $TRD_HOME/apu/apps/sdk/environment-setup-aarch64-xilinx-linux
.是个真真正正的命令。它是source命令的代名词，所以你可以用它在当前 shell 中执行一个文件，而不是以某种其它的方式去运行一个脚本文件（这通常指的是 Bash 会产生一个新的 shell 去运行它）

cd $TRD_HOME/apu/apps/resnet50
make
Update the SD card content
cp -f $TRD_HOME/apu/apps/resnet50/build/resnet50 $TRD_HOME/SDcard/resnet50/
Installing the DNNDK Host Tools
After downloading and unpacking the DNNDK package, execute the sudo ./install.sh command under the host_x86 folder to install the DECENT,DNNC, DDump and DLet tools on the host.
在这里要先安装dnndk_v3.1

cp –r xilinx_dnndk_v3.1/common $TRD_HOME/SDcard/

SD FAT32文件

SD根文件安装

john@john-virtual-machine:/media/john/root/sbin$ sudo tar -zxvf rootfs.tar.gz -C /media/john/root
SD卡的init.sysvinit大小多次变为零，原因不详，强行将其属性改为555
sudo chmod 555 /media/john/root/sbin/init.sysvinit

Test the ResNet-50 application

Insert the DS card in the Ultra96 and switch it on. After boot, login with ID root and password root. Change directory to the application folder.
cd /run/media/mmcblk0p1/resnet50
Run the ResNet application
./resnet50

本文参考官方指南：
XILINX INTERNAL Xilinx Answer 73118 – ResNet-50 implemented on an Ultra96 v1 board using Vivado and PetaLinux 2019.2 6
《Long Form Answer Record 73118: ResNet-50 implemented on an Ultra96 v1 board using Vivado and PetaLinux 2019.2》

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