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FPGA Memory Mapped Order Gateway

Hard · systems · Quant Developer interview question · systems, low-latency, fpga, mmio, pointers

High-frequency trading systems often interface directly with FPGA hardware via Memory Mapped I/O (MMIO) to minimize latency by bypassing the operating system kernel. This low-level communication requires precise register manipulation and strict memory ordering to ensure trade instructions are executed correctly and efficiently. Task Implement the sendOrder method in the FpgaOrderGateway class to interface with a simulated FPGA device via a memory-mapped pointer. The device is mapped to a provid