The miscellaneous codes playing Longan nano!

Pinout Diagram for Sipeed's Longan Nano Board

USB to UART bridge for GD32VF103

usb midi and cdc device running on Longan Nano

Minimal example showing how to use interrupts in the longan nano. The boot button connected to PA8 triggers the blue/green LED

Use the RTC timer to emit a 4Hz SECOND alarm to toggle the RED LED at 2Hz

Test the SPI1 pheriperal and look at the waveforms

Display driver for the Longan-Nano GD32VF103 based on the ST7735S controller. Driver uses SPI0 and DMA acceleration

Demo to test the Longan Nano screen driver. Display class interfaces with low level hardware. Screen class provide a sprite based frame buffer meant to reduce CPU use by not redrawing sprites already on screen. Demo uses boot button to cycle between five demos.

An animated fish tank program written in Rust that runs on Longan Nano boards

Longan Nano board(GD32VF103) examples, in Rust, under macOS. Bad Apple included.

GPS tracker logger

RV-Link: In application debugger for RISC-V micro-controllers, RISC-V emulator, running on RISC-V development boards (e.g. Sipeed Longan Nano or GD32VF103C-START).

Nano Drive is a VGM format player works with Longan Nano. This supports YM2151 and YMZ294 PSG.

An example in bare metal RV32 assembly for the longan nano board

Example project CLion + OpenOCD + Raspberry PI W Zero as OTA flashing probe + Longan Nano(Risc-V) demo board

Experiments with the Sipeed Longan Nano board

WAV player for Sipeed Longan Nano / Lilygo TTGO T-Display-GD32