Re: Inquiry About EPICS Support for XILINX XDMA PCIe Driver

[Joao Paulo Martins via Tech-talk <tech-talk at aps.anl.gov>]

Hello Zengxuan,

 

It is a common practice to write a hardware abstraction layer around the XDMA driver, exposing an API to your FPGA firmware made of higher-level functions, like setClockSouce(), setTriggerSource(), armAcquistion() and such. Usually, it's a C or C++ library and its complexity will depend on where you want to transfer the "business logic" of your application.

Here is an example of a very simple XDMA abstraction library that exposes simple functions to read and write registers https://gitlab.esss.lu.se/icshwi/ics-xdriver-lib

 

With this library in hands, your next step is to develop an EPICS device support tailored to your FPGA firmware, and for that task my recommendation is the ASYN framework: https://epics-modules.github.io/asyn/

Hope that helps!

João Paulo Martins
European Spallation Source ERIC

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From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of hzx1997--- via Tech-talk <tech-talk at aps.anl.gov>
Sent: Tuesday, June 3, 2025 9:06 AM
To: tech-talk <tech-talk at aps.anl.gov>
Subject: Inquiry About EPICS Support for XILINX XDMA PCIe Driver

 

Dear EPICS Support Team,

 I am currently working on a project involving XILINX FPGA-based systems using KU060 fpga. I would like to inquire whether EPICS has any existing PCIe driver examples or support specifically for the XILINX DMA (XDMA) IP core.

If there are relevant resources, documentation, or example modules available, I would greatly appreciate your guidance on where to find them. Additionally, could you please advise on any potential issues or important considerations when integrating XDMA with the EPICS framework?

Thank you for your time and support. I look forward to your response.

Best regards,
Zengxuan Huang

 

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hzx1997 at mail.ustc.edu.cn