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HowToDo.md

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How To Do

Tools install & Environment Setting

Windows x64

  • Quartus Prime Lite 17.1 to 18.1
  • Intel FPGA SDK for OpenCL 17.1 to 18.1
  • SoC Embedded Design Suite (EDS)

It's easy to use linux commands (arm-linux-guneabihf-gcc,make) in Soc_EDS_command_shell.bat on windows.

Linux (Ubuntu 16.04)

  • Quartus Prime Lite 17.1 to 18.1
  • Intel FPGA SDK for OpenCL 17.1 to 18.1
  • SoC Embedded Design Suite (EDS)
  • arm-linux-gnueabihf-gcc
  • arm-linux-gnueabihf-g++
  • u-boot-tools

Install tools and set BSP

sudo apt update
sudo apt install u-boot-tools gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf libncurses5-dev make lsb uml-utilities git

git clone https://github.com/thinkoco/c5soc_opencl.git
cd c5soc_opencl
cp -rf de1soc_sharedonly_vga ~/intelFPGA_lite/18.0/hld/board/c5soc/hardware
cp -rf de10_nano_sharedonly_hdmi ~/intelFPGA_lite/18.0/hld/board/c5soc/hardware
cp -rf de10_standard_sharedonly_vga ~/intelFPGA_lite/18.0/hld/board/c5soc/hardware

About environment，write the following to env.sh file and change the paths for your situation. Source it using "source env.sh" before compiling .aocx and .rbf. for 18.0 lite

#!/bin/bash
export INTELFPGAOCLSDKROOT="~/intelFPGA_lite/18.0/hld"
export QSYS_ROOTDIR="~/intelFPGA_lite/18.0/quartus/sopc_builder/bin"
export QUARTUS_ROOTDIR_OVERRIDE="~/intelFPGA_lite/18.0/quartus"
export PATH="$PATH:${QUARTUS_ROOTDIR_OVERRIDE}/bin:${QUARTUS_ROOTDIR_OVERRIDE}/linux64:${INTELFPGAOCLSDKROOT}/linux64/bin:${INTELFPGAOCLSDKROOT}/bin:${QSYS_ROOTDIR}"
export LD_LIBRARY_PATH="${INTELFPGAOCLSDKROOT}/host/linux64/lib:${AOCL_BOARD_PAKAGE_ROOT}/linux64/lib:${LD_LIBRARY_PATH}"
export AOCL_BOARD_PACKAGE_ROOT="${INTELFPGAOCLSDKROOT}/board/c5soc"
export QUARTUS_64BIT=1

Compile OpenCL Host and Kernel

Windows

Compile opencl kernel command on PC:

aoc device/grayKernel.cl -o bin/grayKernel.aocx --board de1soc_sharedonly_vga -v --report
aoc device/sobel.cl -o bin/sobel.aocx --board de1soc_sharedonly_vga -v --report
aoc device/mandelbrot_kernel.cl -o bin/mandelbrot_kernel.aocx  --board de1soc_sharedonly_vga -v --report 
aoc device/camera_sobel.cl -o bin/camera_sobel.aocx -board=de1soc_sharedonly_vga -v -report

Compile host on DE1SOC:

make host

Linux

You can modify the target boards name in the make file for hardware compiling.

Compile opencl kernel command on PC:

aoc --list-boards
make fpga

Compile host on DE1SOC:

make host

Linux kernel and Driver

If you want to add more kernel features,you can build your own kernel image.When updating kernel,you should recompile the opencl driver and update to SD card. for windows, complie kernel image in Soc_EDS_coomand_shell.bat

git clone https://github.com/thinkoco/linux-socfpga.git
cd linux-socfpga
git checkout -b socfpga-opencl_3.18 origin/socfpga-3.18
cp config_opencl_de10_nano .config

export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf-
export LOADADDR=0x8000

make zImage
make socfpga_cyclone5_de1soc.dtb
make socfpga_cyclone5_de10_nano.dtb
make socfpga_cyclone5_de10_standard.dtb

for x2go only mode.If you just need x2go only, you should remove the video ip core description in the dts files.

make socfpga_cyclone5_de1soc_x2go.dtb
make socfpga_cyclone5_de10_nano_x2go.dtb
make socfpga_cyclone5_de10_standard_x2go.dtb

Also,you can reduce the VIP driver in kernel and rebuild OpenCL driver(This is an optional step).For rebuliding aoc_drv.ko diver,cd to the dirver folder:

make KDIR=../(to the linux-socfpga kernel path)

USB Cameras Driver

  • UVC (USB video device class) USB Cameras,for example Logitech C270

    Device Drivers > Multimedia support > Media USB Adapters

  • USB Cameras supported by gspca driver

    Drivers > Multimedia support > Media USB Adapters > GSPCA based webcams

MSEL

  • compression rbf (default generated top.rbf)

    quartus_cpf -c -o bitstream_compression=on top.sof opencl.rbf

    MSEL[4:0] ——> 01010， SW10(1 to 6) on,off,on,off,on,N/A

  • no compression rbf

    quartus_cpf -c top.sof opencl.rbf

    MSEL[4:0] ——> 01000， SW10(1 to 6) on,on,on,off,on,N/A

How to get rbf form aocx file

If you lost the rbf file and do not want recompile hardware,you can get it from the aocx file.

aocl binedit boardtest.aocx list
aocl binedit boardtest.aocx get .acl.fpga.bin fpga.bin
aocl binedit fpga.bin get .acl.rbf opencl.rbf