Problem with the AXI stream receiver

[jon]

I am using the AXI stream receiver to receive data from a DMA controller. I am using Get to read values from it. The problem I am seeing is that I am reading two words of all zeros before I get any activity on the AXI stream receiver. Once I get data then I can read that fine. But I dont understand why I am getting these two values. I do call Get before any data has entered the receiver, but I thought that it should just block until data was received.
Thanks

[jon]

I found the issue. The problem was that the reset was undefined right at the start which was causing some issues.

[Jim Lewis]

Hi Jon,
What is the value of TValid during that time? If you do a get and TValid is true, the VC will receive data.

To avoid these sort of things, I usually hold off calling Get until the DUT is out of reset.

Best Regards,
Jim

[jon]

Hi Jim

Yes that was the issue.
Thanks
Jon

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