Table: Troubleshooting AXI4-Stream Interface
describes how to troubleshoot the AXI4-Stream interface.
Table C-1:
Troubleshooting AXI4-Stream Interface
|
Symptom
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Solution
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m_axis_video_tvalid stuck low, the downstream core is not receiving data
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•
Is the axis_enable input HIGH?
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Is there a proper signal on vid_vsync or vid_vblank? At least one of these must be present for the core to output data.
•
On startup or reset, tvalid remains Low until SOF after axis_enable is asserted High.
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