Presentation at the FPGA Conference 2024, Munich, Germany, July 2, 2024
Modern Systems can combine a lot of sensors like cameras, radars, Lidar or high speed ADC/DAC. During development, it is often required to record raw data. A FPGA Based High Speed Recorder can collect data from many different sources and can record them on non-volatile memory. Building a High Speed Data Recorder has many pitfalls which can cause the project to fail as a single flaw can have a heavy impact on performance.
This presentation will walk through our lessons learned from building such a recorder: starting by analyzing the data path, discussing the impact of data granularity and data width, different local buffer options such as DDR / HBM2 / UltraRAM / BRAM, characteristics of AXI4 / PCIe and also the limitations of most NVMe SSDs in the aspect of sustained writing performance. Then the presentation will end with an architectural overview of the final system and the achieved performance.