04-02-2018 02:26 PM
Hi all,
- I am using ZCU102 with Vivado 2177.4
- So far, I can bring CSI2 RX Design Example up and run without any problem
- Then I want to HDMI output at 10 bit per channel, so I go to HDMI IP and change Max bits per component from 8 to 10, modify to make sure VIDEO_IN connect to 64 bits input, then Validate Design.
- I got error which indicate frequency between VPhys vid_phy_tx_axi4s_ch0 (which has frequency 148500000) and LINK_DATAX_OUT ( which change from 148500000 to 74250000)
- From Block Interface Properties, these "FREQ_HZ" fields from both above signal are gray out, so I can not modify to make them match.
- I have read some related issue from forum but they are not same as my case.
Please help.
Thanks
Andrew
04-05-2018 11:27 PM
Hi @andrewngo,
It should not change anything...
I have tried and I have the same behaviour, no error.
Please try again to regenerate the MIPI exdes and modify only the TPG and HDMI 8 to 10 bpc. Try to validate the bd twice in a row.
Regards,
04-02-2018 05:49 PM
Hi @andrewngo
If you changed a color depth of video signal from 8bit to 10bit, you should change HDMI's clock frequency from orignal clock frequency to 1.25 multiplied value.
Could you try it, first ?
Best regards,
04-02-2018 06:08 PM
04-03-2018 10:31 AM
04-03-2018 06:37 PM
Hi @andrewngo
Sorry for my late reply.
When you change color depth from 8bit to 10bit, you need to change clock frequency of link clock from 148.5MHz to 185.625MHz.
In this case, you should be change the setting on SI5324.
Would you make sure and try it ?
Best regards,
04-03-2018 08:22 PM
04-05-2018 04:38 AM
Hi @andrewngo,
I have tried and I am not able to reproduce your issue.
I have changed the HDMI from 8 to 10 bpc. The to simulate a 64-bit input I have used an AXI4-Stream subset converter.
I think you need to investigate the error you get. You are probably crossing 2 clock domains.
Regards,
04-05-2018 09:50 AM
04-05-2018 11:27 PM
Hi @andrewngo,
It should not change anything...
I have tried and I have the same behaviour, no error.
Please try again to regenerate the MIPI exdes and modify only the TPG and HDMI 8 to 10 bpc. Try to validate the bd twice in a row.
Regards,
04-17-2018 01:18 AM
Hi @andrewngo,
Do you have any updates on this?
If everything clear for you on this subject, please kindly close the topic by marking one reply as accepted solution.
Thanks and Regards,
04-17-2018 10:34 AM