DLP-HS-FPGA

Overview

The DLP-HS-FPGA is a compact USB-based prototyping module integrating a Xilinx Spartan-3A XC3S200A-4FTG256C FPGA and Micron 32M x 8 DDR2 SDRAM. It utilizes an FTDI FT2232H dual-channel interface for high-speed USB 2.0 connectivity. The module provides 63 user I/O channels, including 24 differential pairs and 8 global clocks. A built-in configuration loader writes bit files directly to SPI Flash via the USB interface, eliminating the need for external programmers. Power can be supplied by the host USB port or an external 5V source.

Feature Summary

• Xilinx Spartan-3A XC3S200A-4FTG256C FPGA with 200,000 system gates
• Micron 32M x 8 DDR2 SDRAM memory with 133 MHz reference design
• Direct SPI Flash programming via USB channel without external hardware
• Dual-channel FTDI FT2232H interface supporting VCP and D2XX drivers

Applications

• Rapid Prototyping
• Educational Tool
• Industrial / Process Control
• Data Acquisition / Processing
• Embedded Processor

Procurement Notes

Verify component availability through authorized distributors such as DigiKey or Mouser. Confirm that the specific revision matches the required firmware compatibility. Ensure Windows operating system support if utilizing the BitLoadApp utility for direct flash programming. Check for updated driver requirements for modern OS versions.

Selection Notes

Select this module for projects requiring immediate FPGA access with integrated memory and USB connectivity. Consider the XC3S400A, XC3S700A, or XC3S1400A if larger logic capacity is needed, as they share the same FTG256 package footprint. Evaluate the 63 available I/O pins against project interface requirements before finalizing selection.

Part Context

This module belongs to DLP Design's USB FPGA series, designed to simplify development using free Xilinx ISE WebPACK tools. It serves as a bridge between PC-based software and hardware logic, offering a cost-effective alternative to traditional JTAG-only setups by enabling direct flash configuration over USB.

Replacement Considerations

The DLP-HS-FPGA2 is a verified successor featuring the XC3S400A FPGA while maintaining identical interfaces and form factors. Larger Spartan-3A family devices (XC3S400A, XC3S700A, XC3S1400A) are pin-compatible replacements for the FPGA chip itself on the existing PCB.

FAQ

How is the FPGA configured?

Configuration is performed by writing bit files directly to the onboard SPI Flash via USB Channel A using the BitLoadApp software, or via the JTAG header.

What power options are available?

The module supports power from the host USB port or an external 5-volt supply connected via the barrel jack.

Can the FPGA be upgraded on the same board?

Yes, the PCB supports migration to larger Spartan-3A FPGAs in the FTG256 package, specifically the XC3S400A, XC3S700A, and XC3S1400A.