LicheeRV Nano Examples

This repo stores examples for this article (Russian). I also started translating it into English, the first part is available on medium. Also you can read article Russian version outside habr in md format here.

I am also working on a deeper adaptation of opencv mobile for LicheeRV Nano (including hardware acceleration on NPU). The work is carried out in a separate repository.

Repo structure

• Interfaces

  • UART
  • UART
  • SPI
  • I2C
  • SPI and I2C BitBanging
  • GPIO
  • • Interrupts handling

• CSI Camera

  • OpenCV + CSI read
  • Stream CSI to MJPEG

• OTG Camera

  • Read USB camera

• NN

  • YoloV8
  • YoloV8_Fast_Test
  • Yolo Benchmark
  • Yolo Camera
  • LLama
  • Custom models
  • • DQN

• Hardware accelerated

  • CVI Math

• Other

  • FreeRTOS
  • Docker
  • Hello world

Useful links

• Power usage tests

Building examples

Examples located in Projects. Each project/dir have a Makefile that have a build directive to compile project. It use ${COMPILER}/riscv64-unknown-linux-musl-g++ as compiler; so assign env variable COMPILER with path to SDK location.

Pin map

You can enable some pins "in hot" by using devmem (bin in Tools) or changing U-Boot init source in build/boards/sg200x/sg2002_licheervnano_sd/u-boot/cvi_board_init.c. Pin map you can find in GPIO README.