Note
We've just released the Wio Lite RISC-V (GD32VF103) - With ESP8266, which is a GD32 MCU based RISC-V board. With the onboard WiFi and Lipo charging circuit, it is more suitable for IoT applications.
Sipeed Longan Nano is a development board based on GD32VF103CBT6 MCU with RISC-V 32-bit core of GigaDevice. It is convenient for students, engineers and geek enthusiasts to contact the new-generation RISC-V processor. Longan Nano sold by Seeed comes with a 0.96inch 160x80 IPS RGB LCD and an acrylic transparent case.
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, double-row pin layout design, needle spacing 700 mil, can be inserted directly into breadboard; on-board 8M passive crystal oscillator, 32.768 KHz RTC low-speed crystal oscillator, Mini TF slot, and use 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
Features
Chip built-in 128KB Flash, 32KB SRAM
4 x general purpose 16-bit timer, 2 x basic 16-bit timer, 1 x advanced 16-bit timer
Watchdog, RTC, Systick
3 x 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
specifications
SPECIFICATION
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 160x80 RGB IPS LCD (SPI Interface)
Debug interface 2x4 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
Dimension
Part List
Part List
Sipeed Longan Nano Development Board x1
0.96inch 160x80 IPS RGB LCD x1
Acrylic transparent case x1
