Sipeed Tang Mega 138K Pro Dock GOWIN GW5AST RISC-V FPGA Development Board

Overview

The Tang Mega 138K Pro is a high-density FPGA development system built around the Gowin GW5AST-LV138FPG676A chip. Designed for demanding applications in high-speed communication and edge computing, this board combines massive logic resources (138K LUTs) with nearly 300 DSP units and eight high-speed transceivers supporting up to 12.5Gbps. The integrated RISC-V AE350 hard core and dedicated PCIe hardware ensure efficient processing and seamless host connectivity. Ideal for researchers, engineers, and hobbyists tackling complex signal processing and AI inference tasks.

Key Features

• Massive Logic Capacity: With 138,240 Look-Up Tables (LUTs) and 298 multipliers, handle complex algorithms and large-scale state machines with ease.
• High-Speed Connectivity: Features 8 transceivers (270Mbps–12.5Gbps) and a native PCIe 3.0 hard core (x1/x2/x4/x8), enabling fiber optic transmission and high-bandwidth data exchange.
• Embedded SoC Architecture: Includes a hard-core RISC-V AE350 processor, allowing for hybrid CPU+FPGA designs without consuming soft logic resources.
• Rich I/O Ecosystem: The carrier dock board provides dual SFP+ cages, Gigabit Ethernet, MIPI CSI/D-PHY interfaces, and DVI TX/RX for versatile multimedia and networking applications.
• Generous Memory: Onboard 1GB DDR3 (configured as 512MB x 2) and 256Mbits Flash ensure ample space for data buffering and configuration storage.
• Developer Friendly: Comes with an onboard USB JTAG debugger and UART interface, eliminating the need for external programmers. Supports Gowin IDE v1.9.9+ (Commercial License required).

Technical Specifications

• FPGA Chip: GW5AST-LV138FPG676A (22nm)
• Logic Resources: 138,240 LUT4, 138,240 Flip-Flops
• Memory: 1GB DDR3 (1,333 Mbps), 256Mbits SPI Flash
• High-Speed I/O: 8x Transceivers (up to 12.5Gbps), PCIe 3.0 Hard Core
• Interfaces: 2x SFP+, 1x Gigabit Ethernet, 2x MIPI CSI (3-Lane), 2x DVI (TX/RX shared), 3x PMOD
• Processor: Hard-core RISC-V AE350 SoC
• Debug Interface: USB JTAG & UART (FTDI based)
• Power Input: 12V DC
• Dimensions: SOM: 50mm x 70mm (Dock board size not specified)
• IDE Support: Gowin IDE v1.9.9 or newer (Commercial License)

Ideal Applications

• High-speed protocol conversion (PCIe, Fiber, Ethernet)
• Real-time image processing and computer vision (MIPI support)
• Software Defined Radio (SDR) and communication basebands
• Hardware acceleration for AI/ML inference
• Industrial control and edge computing gateways

Package Contents

• 1x Tang Mega 138K Pro SOM Board
• 1x Dock Board (with peripherals)
• Standard packaging (check with vendor for specific cable/accessory inclusion)