Description

Features

Powerful GD32VF103CBT6 MCU with RISC-V 32-bit core
Onboard 0.96inch 160×80 IPS RGB LCD
Core power consumption is only 1/3 of that of traditional Cortex-M3
Double-row pin layout design which is breadboard friendly
Supports multiple download methods (USB DFU download, UART ISP download, JTAG download)

Description

Sipeed Longan Nano is a development board based on the GD32VF103CBT6 MCU with RISC-V 32-bit core by GigaDevice. It is convenient for students, engineers, and geek enthusiasts to tinker with the new-generation RISC-V processors. Longan Nano comes with a 0.96inch 160×80 IPS RGB LCD.

GD32VF103CBT6 is a Bumblebee core, based on Nuclei System Technology. Support RV32IMAC instruction set and ECLIC fast interrupt function. Core power consumption is only 1/3 of that of traditional Cortex-M3.

Longan Nano development board has a double-row pin layout design with a needle spacing of 700 mil, which can be inserted directly into a breadboard. Also, it has an on-board 8M passive crystal oscillator, 32.768 kHz RTC low-speed crystal oscillator, Mini TF slot, and uses Type-C USB interface.

Longan Nano supports multiple download methods: USB DFU download, UART ISP download, JTAG download. In the USB DFU download mode, you only need a USB Type-C cable to download the program to the development board. At the same time, Longan Nano supports the standard JTAG interface, which can be debugged online using the in-store RISC-V debugger or any JTAG-enabled debugger such as J-Link.

Meanwhile, Sipeed has adapted the PlatformIO IDE for the Longan Nano development board, which can be visually developed on multiple platforms such as Windows/Linux:

https://github.com/sipeed/platform-gd32v

Specifications

SPECIFICATIONS
CPU	GD32VF103CBT6 based on RISC-V 32-bit core
Kernel power consumption	Only 1/3 of the traditional Cortex-M3
Chip built-in	128KB Flash, 32KB SRAM
Peripheral	● 4 x general-purpose 16-bit timer, 2 x basic 16-bit timer, 1 x advanced 16-bit timer ● Watchdog, RTC, Systick ● 3x USART, 2 x I2C, 3 x SPI, 2 x I2S, 2 x CAN, 1 x USBFS (OTG), ● 2 x ADC (10 channel), 2 x DAC
SOFTWARE
IDE	PlatformIO IDE, Support debugging, Arduino
Compile Toolchain & Debugger	GCC, OpenOCD
Operating system	RT-Thread、LiteOS
HARDWARE
Storage expansion	Short body TF card slot
Display expansion	8pin 0.5mm FPC Block Expansion 160×80 RGB IPS LCD (SPI Interface)
Debug interface	2×4 pin leads to JTAG debug interface
Connector	Double row 2.54 pitch pin
Crystal	8MHz Passive High-Speed Crystal +32.768KHz Low-Speed RTC Crystal