The Sipeed Tang Primer 25K is a small core board (23x18mm) designed based on a GW5A-LV25MG121 FPGA and accompanied by a 25K Dock base board that exposes all pins (excluding MIPI high-speed pins).

The ultra-small core board size can be applied in any volume-restricted scenarios. The simple base board can connect a USB joystick, plug in a 40Pin SDRAM module, use three PMOD interfaces to connect to an HDMI display, or plug in a PS2 joystick to form a typical RetroGame console configuration. It can also be paired with the series of PMOD modules produced by Sipeed, for use in FPGA university teaching.

The base board has both a USB A (Host, USB1.1) and USB C connector as well as a high-speed debugger.

• Sipeed Tang Primer 25K Module
• Baseboard
• USB A to C Cable

• FPGA: GW5A-LV25MG121
  • Logic Unit (LUT4) - 23040
  • Register (FF) - 23040
  • Distributed Static Random Access Memory S-SRAM (bits) - 180K
  • Block Static Random Access Memory B-SRAM (bits) - 1008K
  • Number of Block Static Random Access Memory B-SRAM - 56
  • Multiplier (18x18 Multiplier) - 28
  • Phase-Locked Loop (PLLs) - 6
  • Total I/O Bank - 8
• Flash: 64Mbits NOR Flash
• Overall Packaging: 2x60P BTB Core Board
• General I/O - 75
• MIPI I/O - 4 Lane Data

Board Specs:

• Debugger: Onboard high-speed debugger, supports JTAG+UART, uses USB-C port for programming
• USB-A Port: One, can be used as a USB1.1 Host to connect game controllers and other HID devices
• I/O Pins: One 2x20Pin 2.54 pin, Can support SDRAM module
• PMOD Ports: 3
• Buttons: 2
• Dimensions: 64x40mm

• App Note on Downloading to External Flash
• Wiki/Datasheet