Teledyne SP Devices ADQ7, Руководство пользователя

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Classification Revision
Public PA1
Document ID Print date
19-2241 2019-05-02
1 Introduction
This document describes how to perform peer-to-peer transfer from an ADQ7 digitizer to a GPU.
1.1 Definitions and Abbreviations
Table 1 lists the definitions and abbreviations used in this document and provides an explanation for each
entry.
Table 1: Definitions and abbreviations used in this document.
Term Explanation
API Application programming interface
DMA Direct memory access
GPU Graphics processing unit (Graphics card)
OCT Optical coherence tomography
P2P Peer-to-peer
UL2 User logic 2—open FPGA area in the ADQ7 firmware.
2 Prerequisites
Hardware
• ADQ7 digitizer
• Peer-to-peer capable GPU
– Windows AMD GPU with DirectGMA support
– Linux Nvidia GPU with GPUDirect support
• Host computer capable of P2P streaming with two PCIe Gen3x8 slots
3 Working Principles
The peer-to-peer function for ADQ7 has been developed with special consideration for OCT applications
and the triggering scheme commonly used in these applications. Data is collected with the help of two
trigger signals: the A-scan trigger and the B-scan trigger.
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