Tang Primer 25K is a compact FPGA core board based on the GW5A-LV25MG121 chip in a small 23x18mm package. It integrates a Gaoyun GW5A-LV25MG121 FPGA, 64Mbit SPI FLASH, DC-DC power supply, and BTB connector in a space smaller than a one-yuan coin. The core board provides 76 GPIOs, one 4-lane MIPI interface, and three power outputs. Users only need to supply 5V power and properly configure the setup pins to operate the board.The Tang Primer 25K Dock baseboard is a modular expansion board featuring an integrated USB-JTAG debugger, three PMOD interfaces, and one 40-pin header. The PMOD ports support connection to common modules such as sensors, LEDs, and other peripherals. The 40-pin header enables connection to more complex modules including SDRAM and dual camera units.Compared to typical FPGA development environments, the required IDE installation package for Tang Primer 25K is under 200MB, with installed size approximately 500MB, significantly reducing disk space usage. The IDE workflow is streamlined, minimizing complexity for beginners. While other platforms may take minutes to program and integrate, Tang Primer 25K offers a faster experience with programming in five minutes and integration in ten seconds.Kit Model: Tang Primer 25K Dock Main Chip: GW5A-LV25 (22nm) LUTs: 23040 Block RAM: 1008kbit DSP Blocks: 27 x 36 PLLs: 6 Clock Source: 50MHz active crystal oscillator SDRAM: Expandable via 40-pin module, 512Mbit, 16-bit width External Flash: 64Mbit QSPI NOR PMOD Interfaces: 3 Pin Header: 1 x 40-pin