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tejaallani
Observer
Observer
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Registered: ‎05-08-2018

Xilinx XDMA driver increase default 8MB buffer

Hi,

    I am building an application where FPGA writes to host memory continuously through DMA/PCIE bridge mode and host reads the data continuously, I want to read more than 8MB for each readfile call from my application, is it possible to increase the allocated buffer size in driver https://www.xilinx.com/support/answers/65444.html .

I tried increasing the buffer size by changing define XDMA_MAX_TRANSFER_SIZE in libxdma/dma_engine.h and built in visual studio 2019, I am getting inf2cat signability test failed and driver does not install. I don't have much knowledge on windows driver framework. Is there anyway this driver can be built and installed with modifications?

I am using windows 10.

 

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peterjohnee1
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Registered: ‎06-29-2021

Choose where you can grow in the future. Bring your passion

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