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Zynq 5cm基板−DDRのアドレス・コマンド配線は難しい ― バラバラのピン配置と長さ合わせ
前回は、DDRのデータ側について書きました。 データ側については、Byte Lane内でピンスワップを活用することで、かなりきれいに配線することができました。 中間VIA…
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Zynq 5cm基板−DDRデータ線はピンスワップで配線を優先 ― 中間VIAなしまで追い込んだ
English Summary After defining the main routing and VIA regions, the next step was to route the DDR3 data lines. The data interface was handled in Byte L…
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Zynq 5cm基板−DDR配線はまるで都市計画。先にVIAの場所を確保する
English Summary After moving several major components, the DDR routing also had to be redesigned. Ideally, DDR traces would be routed without VIA transit…
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Zynq 5cm基板−小さいeMMCを選んだら配線できなかった ― BGAパッケージ選定の失敗
English Summary After completing the first DDR routing pass, another serious problem was discovered while routing the remaining major components: the select…
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５ｃｍZynq基板製作記−6層基板にDDRをどう通すか、最初の配線
English Summary This article describes the first attempt to route DDR3L on a six-layer, 50 mm × 50 mm Zynq board. DDR routing is usually associated with …
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FPGA基板は抵抗とコンデンサであふれる
English Summary After placing the major components such as the Zynq FPGA, DDR memory, eMMC, FTDI device, and connectors, the next challenge was dealing with…
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Zynq 5cm基板のパターン設計、まず主要部品の配置から
English Summary This article starts the PCB layout phase of our 5 cm Zynq board project. After completing the schematic, the design data was transferred …
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5cm Zynqボード開発 ―今回作っている5cm角のZynq基板ですが、実は回路そのものを完全にゼロから設計しているわけではありません。
English Summary For this Zynq board, I was able to reuse a large part of an existing, proven circuit design. Designing a complex board completely from sc…
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5cm Zynqボード開発 ―生成AIは補助にはなるが、まだ完全自動ではない
English Summary Generative AI has improved rapidly and is beginning to play a useful role in schematic design. KiCad is particularly interesting in this …
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5cm Zynqボード開発 ―回路図は今でもデータシートとにらめっこ
English Summary After selecting the components, the next step is to draw the schematic. However, placing a component on a schematic is not enough. To mak…
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5cm Zynqボード開発 ―KiCadが普及して基板設計の敷居が下がった
English Summary Once the main components have been selected, the next step is to draw the schematic. Recently, I have been using KiCad, a free and open-s…
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5cm Zynqボード開発 ― プリント基板の部品選定で考えたこと
English Summary Selecting components is an important part of developing the 5 cm Zynq board. Compared with the past, purchasing electronic components has…
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