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資料調査: PYNQ-Z1 > Video > AXI4-Stream to Video Outへのデータ供給 (DDRからFrame Buffer Readで読む)

Last updated at Posted at 2020-06-14
動作環境
Windows 10 Pro (v1909) 
PYNQ-Z1 (Digilent) (以下、PYNQと表記)
Vivado v2019.1 (64-bit)

関連

ユーザデータのStreaming

AXI4-Stream to Video OutへはVideo Test Pattern Generator IPを使っていた。
これとは別に、ユーザが生成したデータをAXI4-Stream to Video Outへ入れるにはどうするかを調べていた。

下記を見つけた。

p35
Figure 2-12 Video System with Interlaced Content Using Frame Buffer Write/Read

コメント 2020-06-14 212356.png

  • Frame Buffer WriteでDDR書き込み
  • Frame Buffer ReadでDDRから読み込み、AXI4-Stream to Video Outへ

DDRにデータを設定できれば、HDMI出力できそうな気がする。

関連資料2

Vivadoのバージョンが違うためか、Block Designが正常に開かない。
参考程度までに記録を残しておく。

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