Other Interfaces - 6.2 English

Video Timing Controller Product Guide (PG016)

Document ID
PG016
Release Date
2023-11-03
Version
6.2 English

Table: Troubleshooting Third-Party Interfaces describes how to troubleshoot third-party interfaces.

Table C-2: Troubleshooting Third-Party Interfaces

Symptom

Solution

Severe color distortion or color-swap when interfacing to third-party video IP.

Verify that the color component logical addressing on the AXI4-Stream TDATA signal is in according to Core Interfaces and Register Space . If misaligned:
In HDL, break up the TDATA vector to constituent components and manually connect the slave and master interface sides.

Severe color distortion or color-swap when processing video written to external memory using the AXI-VDMA core.

Unless the particular software driver was developed with the AXI4-Stream TDATA signal color component assignments described in Core Interfaces and Register Space , there are no guarantees that the software correctly identifies bits corresponding to color components.

Verify that the color component logical addressing TDATA is in alignment with the data format expected by the software drivers reading/writing external memory. If misaligned:
In HDL, break up the TDATA vector to constituent components, and manually connect the slave and master interface sides.