中文标题#
ListenToJESD204B：一種用於基於 FPGA 的超聲採集系統的輕量級開源 JESD204B IP 核
英文标题#
ListenToJESD204B: A Lightweight Open-Source JESD204B IP Core for FPGA-Based Ultrasound Acquisition systems
中文摘要#
對超聲系統中數百個緊密同步通道在數十 MSPS 下運行的需求超過了傳統低電壓差分信號鏈的帶寬、引腳數和延遲。儘管 JESD204B 串行接口緩解了這些限制，但商業 FPGA IP 核心是專有的、昂貴的且資源密集型的。我們提出了 ListenToJESD204B，這是一個在寬鬆的 Solderpad 0.51 許可證下發布的開源接收器 IP 核心，適用於 AMD Xilinx Zynq UltraScale+ 設備。用可綜合的 SystemVerilog 編寫，該核心支持四個 GTH/GTY 通道，速率為 12.8 Gb/s，並提供周期精確的 AXI-Stream 數據以及確定性的 Subclass~1 延遲。它僅佔用 107 個可配置邏輯塊（約 437 個 LUT），與同類商業可用 IP 相比減少了 79%。一個模塊化的數據路徑，包括每通道彈性緩衝器、SYSREF 鎖定的 LMFC 生成和可選的 LFSR 解擾，便於擴展到高通道數。我們通過與 Xilinx JESD204C IP 在 JESD204B 模式下的仿真以及使用 TI AFE58JD48 ADCs 的硬件驗證了協議合規性。通過在兩個 12.8 Gb/s 鏈路上連續傳輸 80 MSPS、16 位樣本 30 分鐘，未出現任何錯誤，驗證了模塊的穩定性。
英文摘要#
The demand for hundreds of tightly synchronized channels operating at tens of MSPS in ultrasound systems exceeds conventional low-voltage differential signaling links' bandwidth, pin count, and latency. Although the JESD204B serial interface mitigates these limitations, commercial FPGA IP cores are proprietary, costly, and resource-intensive. We present ListenToJESD204B, an open-source receiver IP core released under a permissive Solderpad 0.51 license for AMD Xilinx Zynq UltraScale+ devices. Written in synthesizable SystemVerilog, the core supports four GTH/GTY lanes at 12.8 Gb/s and provides cycle-accurate AXI-Stream data alongside deterministic Subclass~1 latency. It occupies only 107 configurable logic blocks (approximately 437 LUTs), representing a 79% reduction compared to comparable commercially available IP. A modular data path featuring per-lane elastic buffers, SYSREF-locked LMFC generation, and optional LFSR descrambling facilitates scaling to high lane counts. We verified protocol compliance through simulation against the Xilinx JESD204C IP in JESD204B mode and on hardware using TI AFE58JD48 ADCs. Block stability was verified by streaming 80 MSPS, 16-bit samples over two 12.8 Gb/s links for 30 minutes with no errors.
文章页面#
ListenToJESD204B：一種用於基於 FPGA 的超聲採集系統的輕量級開源 JESD204B IP 核
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