Longan Nano is a development board based on GD32VF103CBT6 MCU with RISC-V 32-bit core of GigaDevice. Longan Nano sold by Seeed comes with a 0.96inch 160x80 IPS RGB LCD and an acrylic transparent case.
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:
|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
|IDE||PlatformIO IDE, Support debugging, Arduino|
|Compile Toolchain & Debugger||GCC, OpenOCD|
|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|
|Sipeed Longan Nano Development Board||x1|
|0.96inch 160x80 IPS RGB LCD||x1|
|Acrylic transparent case||x1|