Tang Nano 9K


The Tang Nano 9K, powered by Gowin's GW1NR-9 FPGA chip, is a versatile and feature-rich development board. It features several often used connectors, including HDMI, RGB screen, and SPI screen interfaces, aswell as a 32Mbit SPI flash and six LEDs. It has 8640 LUT4 logic units, an onboard 27MHz clock and 2 PLLs meaning, as well as basic FPGA designs, it can also be used for full risc-v softcores such as PicoRV.


Tang Nano 9K is the 5th product of Sipeed Tang series. Several Tang FPGA products are compared in the table below, if you need a more feature-rich board consider the Tang Nano 20K.

Model Tang Nano 1K Tang Nano 4K Tang Nano 9K
Logic Units (LUT4) 1152 4608 8640
Hard core processor / Cortex m3 /
Crystal oscillator 27MHZ 27MHZ 27MHZ
Display interface RGB screen interface HDMI HDMI,
RGB screen interface,
SPI screen interface
Camera / Support OV2640 /
External SPI FLASH Reserved pads only 32Mbits SPI flash 32Mbits SPI flash
TF card slot / / Yes
Debugger Onboard USB-JTAG Onboard USB-JTAG Onboard USB-JTAG & USB-UART


Indepth specifications of the tang nano 9k.

Item value
Logic units(LUT4) 8640
Registers(FF) 6480
ShadowSRAM SSRAM(bits) 17280
Block SRAM BSRAM(bits) 468K
Number of B-SRAM 26
User flash(bits) 608K
SDR SDRAM(bits) 64M
18 x 18 Multiplier 20
Number of PLL 2
Display interface HDMI interface, SPI screen interface and RGB screen interface
Debugger Onboard BL702 chip provides USB-JTAG and USB-UART functions for GW1NR-9
IO • support 4mA、8mA、16mA、24mA other driving capabilities
• Provides independent Bus Keeper, pull-up/pull-down resistors, and Open Drain output options for each I/O
Connector TF card slot, 2x24P 2.54mm Header pads
Button 2 programmable buttons for users
LED Onboard 6 programmable LEDs

On-board Function block




Language Verilog HDL/Verilog C/C++ Verilog HDL/Verilog , C/C++
Introduction verify HDL design After flashing the softcore bitstream,
this board can be used as a normal microcontroller unit
After flashing the softcore bitstream,
it can be used as two chips
User Beginner,FPGA developer RISC-V developers,Cortex-M developers Senior engineer

Getting Started

  1. Download User Guide: Access all necessary PDF documents by downloading our comprehensive user guide package.

  2. Install IDE & License Configuration: Set up your Integrated Development Environment (IDE) and configure your license by following this guide.

  3. Software User Guide: Refer to the "SUG100-2.6E_Gowin Software User Guide.pdf" in the downloaded package for detailed software instructions.

  4. LED Tutorial: A simple project to get you acquianted to FPGAs and the tangnano9k.

    • Verilog Code Standards: It's crucial to adhere to good coding practices.
    • Recommended Reading:
      • SUG949-1.1E_Gowin HDL Coding User Guide.pdf
      • UG286-1.9.1E_Gowin Clock User Guide.pdf

    These, and other important, documents are available at our Download Station.

    Online Resources: We recommend two excellent learning sites for Verilog: HDLBITs and ASIC World's Verilog Page.

  5. RGB Screen Tutorial: Follow this step-by-step guide for setting up a 5-inch RGB screen display. If you encounter difficulties, refer to our 9K examples adapted for 9K + 5-inch screens.

  6. Examples in the source code repository includes a PicoRV softcore and a HDMI display example, among other examples.

Reference and Examples

You can access several example projects on our Examples Page.

Hardware Resources

Attention and Best Practices

  1. Support and Community: For assistance, join our Telegram group (t.me/sipeed) or contact us on Twitter (@SipeedIO). You can also leave a message below.

  2. Troubleshooting: If you encounter any issues, consult our Tang Questions page first.

  3. Avoid using JTAG, MODE0/1, and DONE pins unless necessary. For details, refer to SUG100-2.6E_Gowin Software User Guide.pdf.

  4. Static Electricity Precautions: Always discharge static electricity before handling the PCBA to prevent damage.

  5. GPIO Voltage Compliance: Ensure that the actual working voltage of GPIOs does not exceed their rated value as indicated in the schematic. Exceeding these limits can cause permanent damage to the PCBA.

  6. FPC Cable Connection: When connecting FPC flexible cables, ensure that the cable is fully inserted into its base without any offset.

  7. Avoid Short Circuits: Prevent liquids or metals from coming into contact with the component pads on the PCBA while it's operating, as this could cause a short circuit and damage the PCBA.

  8. Handling Multiplexed IO and HDMI Ports: Be aware that the HDMI IO ports are pulled up. When using IOs routed to pin headers, they may not operate as intended.

HDMI IO Port Configuration