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Observer bva_rzn
Observer
931 Views
Registered: ‎07-04-2017

write buffer number vdma

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Hi.

I understand with genlock the synchronization of the vdma module.

The vdma settings are shown in the figure. 3 buffers are selected.

The video format is 1024x768.
Correctly I understood the documentation on axi_vdma. After the user pulse in the input video stream, s2mm_frame_ptr_out shows the frame number to which the frame will be recorded.

Connected ILA, the trigger starts the record by the value uset = 1. In ILA it is shown that after the user's pulse in the input video stream s2mm_frame_ptr_out for 520 cycles shows 7, and then 6.
The question is, what kind of number will the input frame be written to?

 

Thank you.

Tags (2)
q2_1.jpg
q2_2.jpg
g2_3.jpg
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1 Solution

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Moderator
Moderator
1,105 Views
Registered: ‎11-09-2015

Re: write buffer number vdma

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Hi @bva_rzn,

 

To close the topic, please kindly click on accept as solution on the best reply.

 

Best Regards,


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
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4 Replies
Moderator
Moderator
873 Views
Registered: ‎11-09-2015

Re: write buffer number vdma

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Hi @bva_rzn,

 

Could you show the ILAs for s2mm_frame_ptr_in and s2mm_frame_ptr_out?

 

Thanks,


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
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Moderator
Moderator
821 Views
Registered: ‎11-09-2015

Re: write buffer number vdma

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Hi @bva_rzn,

 

If everything is clear for you on this subject, please kindly mark a reply as solution to close the topic. Else please reply to the topic

 

Thanks and Regards,


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
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Observer bva_rzn
Observer
771 Views
Registered: ‎07-04-2017

Re: write buffer number vdma

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I'm sorry for the delay.

I decided the question.

Topic can be closed.

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Moderator
Moderator
1,106 Views
Registered: ‎11-09-2015

Re: write buffer number vdma

Jump to solution

Hi @bva_rzn,

 

To close the topic, please kindly click on accept as solution on the best reply.

 

Best Regards,


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
0 Kudos