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Dobrica Pavlinušić's random unstructured stuff
cfu-playground
video
git
dpavlin@klin:/klin/FPGA/CFU-Playground$ git remote -v
origin https://github.com/google/CFU-Playground.git (fetch)
origin https://github.com/google/CFU-Playground.git (push)
dpavlin@klin:/klin/FPGA/CFU-Playground$ git submodule init
dpavlin@klin:/klin/FPGA/CFU-Playground$ git submodule update
ulx3s board
https://github.com/litex-hub/litex-boards/blob/master/litex_boards/targets/radiona_ulx3s.py
dpavlin@klin:/klin/FPGA/CFU-Playground$ find . -name radiona_ulx3s.py
./third_party/python/litex_boards/litex_boards/targets/radiona_ulx3s.py
./third_party/python/litex_boards/litex_boards/platforms/radiona_ulx3s.py
# edit fpga settings here
dpavlin@klin:/klin/FPGA/CFU-Playground$ vi ./third_party/python/litex_boards/litex_boards/targets/radiona_ulx3s.py
modifications for 85F litex-85f.diff
build
you really need riscv64 toolchain from https://github.com/sifive/freedom-tools/releases/tag/v2020.04.0-Toolchain.Only
dpavlin@klin:/klin/FPGA/CFU-Playground/proj$ cat build.sh
#!/bin/sh -xe
echo https://github.com/google/CFU-Playground
export PATH=/opt/riscv64-unknown-elf-gcc-8.3.0-2020.04.1-x86_64-linux-ubuntu14/bin/:$PATH
export TARGET=radiona_ulx3s
export UART_SPEED=115200
time make prog load
sumulation
dpavlin@klin:/klin/FPGA/CFU-Playground/proj/avg_pdti8$ time make PLATFORM=sim load -j 4
boot over serial using network
host with ulx3s connected
root@pihdmi:/home/pi# socat /dev/ttyUSB0,b115200,raw,echo=0 TCP:10.60.0.92:2003
machine running litex
dpavlin@klin:/klin/FPGA/CFU-Playground/proj/hps_accel$ socat TCP-LISTEN:2003 PTY,link=ttyV2,raw
- re-run terminal with new virtal ttyV2
dpavlin@klin:/klin/FPGA/CFU-Playground/proj/hps_accel$ /klin/FPGA/CFU-Playground/soc/bin/litex_term --speed 115200 --serial-boot --kernel /klin/FPGA/CFU-Playground/proj/hps_accel/build/software.bin ttyV2
litex> serialboot
Booting from serial...
Press Q or ESC to abort boot completely.
sL5DdSMmkekro
[LXTERM] Received firmware download request from the device.
[LXTERM] Uploading /klin/FPGA/CFU-Playground/proj/hps_accel/build/software.bin to 0x40000000 (1313688 bytes)...
[LXTERM] Upload complete (9.9KB/s).
[LXTERM] Booting the device.
[LXTERM] Done.
Executing booted program at 0x40000000
--============= Liftoff! ===============--
Hello, World!
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