1. For Tang Nano 9K is a compact development board based on Gowin GW1NR-9 FPGA chip. 2. It's HDMI-compatible connector, RGB interface screen connector, SPI screen connector, SPI FLASH and 6 LEDs allow users to easily and quickly perform FPGA verification, RISC-V soft core verification and functional prototype verification. 3. The 8640 LUT4 logic unit owned by GW1NR-9 can not only be used to design various complex logic circuits, but also can run a complete PicoRV soft core, which meets the various needs of users to learn FPGA, verify soft core and in-depth design. 4. For Tang Nano 9K is developed using Gowin Yunyuan software IDE. It supports general hardware description language, and can quickly realize related work such as calling IP core, code synthesis, placement and routing, and bitstream file generation in the FPGA development process. 5. The onboard BL702 chip for Tang Nano9K development board provides USB-JTAG download and USB-UART debugging functions for GW1NR-9. Users only need to use the USB-C cable to connect the development board to the computer to complete the download operation, without the need to purchase an additional downloader and cumbersome wiring. Core configuration: Logical Units (LUT4): 8640 Register (FF): 6480 Distributed static random access memory SSRAM (bits): 17280 Block static random access memory B-SRAM (bits): 468K The number of block static random access memory BSRAM (pcs): 26 User flash memory (bits): 608K PSRAM (bits): 64M High-performance DSP module: support 9X9, 18X18, 36X36bit multiplication and 54bit accumulator Multiplier (18x18 Multiplier): 20 SPI FLASH: 32m-bit Flexible PLL resources: 2 Phase Locked Loops (PLLs) Display screen interface: HDMI-compatible interface, SPI screen interface and RGB screen interface Debugger: Onboard BL702