Maix Go / K210 stuff

First, get the Kendryte C toolchain and copy or symlink the contents of the src/ folder to a checkout of https://github.com/sipeed/LicheeDan_K210_examples.git.

Then to build a certain project do:

mkdir build && cd build
cmake .. -DPROJ=<ProjectName> -DTOOLCHAIN=/opt/riscv-toolchain/bin && make

You will get 2 files, build/<ProjectName> and build/<ProjectName>.bin. The former is an ELF executable, the latter a raw binary that can be flashed or written to 0x80000000 in SRAM and directly executed.

Documentation

Additional register documentation that is not in the datasheet can be found here:

• K210 memory map - A rough memory map for the Kendryte K210 (as used on the Sipeed Maix boards)
• OTP memory map - Some random notes about the layout of the Kendryte K210 OTP memory
• LicheeDan / MaixGo on-board peripherals - List of on-board peripherals and chips for the various boards with a K210

External:

• k210.svd - Peripheral description for rust K210 BSP (k210-pac project)

Projects

glyph_mapping

Variation of the DVP sample that processes the camera input through a simple DOS 8×8 font glyph-mapping algorithm and shows it on the display.

README

dump_otp

Dumps the contents of the OTP (One-Time Programmable memory) of the K210 CPU to serial output in Intel HEX format.

README

secp256k1_{tests,bench}

Run tests and benchmarks for the secp256k1 elliptic curve cryptographic library on this RISC-V CPU.

rust/k210-console

Console emulator written in Rust for the Maix Go.

Barely functional at the moment. This is really a test for some functionality like SPI and driving the display from Rust, and for playing with Rust RISC-V 64 in general.

README

rust/mandelbrot

Mandelbrot fractal zoom.

README

ROM re'ing

Annotated radare2 config files for the Boot ROM and OTP can be found under r2.

Other projects

Some interesting K210-based projects and demos by other people:

• accelerometer - Example of using the MSA300 accelerometer on the MAIX Go board, by GitJer

• quake1 - Quake 1 on K210. Requires wiring up a PS2 controller.

• doom1 - Doom 1 on K210