Description
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
- 4x general purpose 16-bit timer, 2x basic 16-bit timer, 1x advanced 16-bit timer
- Watchdog, RTC, Systick
- 3x USART, 2x I²C, 3x SPI, 2x I²S, 2x CAN, 1x USBFS (OTG)
- 2x ADC (10 channel), 2x DAC
Technical 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 | – 4x general purpose 16-bit timer, 2x basic 16-bit timer, 1x advanced 16-bit timer
– Watchdog, RTC, Systick
– 3x USART, 2x I²C, 3x SPI, 2 x I²S, 2x CAN, 1 x USBFS (OTG),
– 2x ADC (10 channel), 2x 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 |
