AFE5828: AFE5828 work on Pattern Mode(Sync )

Hi Charlie,

Thanks for sharing your concern.

I looked at the settings you are writing. This looks fine to me. Ideally you should observe the sync pattern on all lvds data lines.

One thing I am suspecting is whether the SPI write operation is happening or not? 

Reasons could be:

1. Check SPI write is working. (Either look at the data read back from the register or change the clk_rate/serialization rate  and probe if the clock is actually changed)

2. Whether you are looking at FPGA output or probing through the scope? I would recommend to probe the data lines as well. 

3. Please verify that you have the termination resistance of 100 ohms on the P and M output pins. If the termination resistance is not there, it wont work.

Thanks and regards,

Abhishek

Hi Charlie,

At this point, it is unclear to me whether your issue is resolved. If so, please let me know if I can close this thread.

If not, please share how may I help you to resolve your concern.

Thanks & regards,

Abhishek