Questions tagged [axi4-stream]
5 questions
4
votes
1 answer
AXI4-Stream Position Bytes
Can someone explain what a position byte is in the context of the AXI4-Streaming interface? I don't understand how, while it's not the same as a null byte, it doesn't have to transmitted to the slave.
sheridp
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1
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1 answer
Sending JPEG image into AXI4 stream and reading it back?
I'm doing an image processing project on Zedboard Zynq evaluation board, using the FPGA built on it. I have written the image processing block using HLS and created the IP with both input and output as AXI4 streams with width 8.
How do I read a…
nik_97
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0
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About unitialized TUSER signals in AXI4-Stream Protocol Assertion after reset deassertion
Recently I've noticed the following in the documentation for the AXI4-Stream protocol from ARM (found here):
Recommended assertion for TUSER as per ARM
I thought it was interesting that TUSER must be initialized during the deassertion of reset,…
EyeballWitch
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3 answers
How to multiplex AXI streams with TDEST?
In Xilinx Vivado, I would like to buffer 8 independent AXI streams through a "AXI Virtual FIFO controller".
From what I understand, the 8 streams must first be multiplexed into one stream using a "AXI4-Stream switch", and then demultiplexed using a…
Timmy Brolin
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-2
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1 answer
PCM stream real-time music compression
How can I compress a 44.1kHz sampled, 16-bit PCM real-time music data stream to reduce its size and send it over an AXI4 Stream interconnect in a Zynq Z7020?
Can anyone suggest a codec for such a use-case and maybe links to its implementation?
Alex P
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