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The article is missing some clarifying words. > Those are not pin-to-pin compatible chips, and two circuitry were made for the board requiring two BoMs as it’s
by SV_BubbleTime 4y ago
The article is missing some clarifying words.
> Those are not pin-to-pin compatible chips, and two circuitry were made for the board requiring two BoMs as it’s not just possible to only replace IP2315 by CH224D [WITHOUT BUILDING THE WHOLE BOARD TO THE APPROPRIATE BOM].
Either chip would have worked if built to the correct BOM. But instead they used a BOM for one chip and placed the other chip, causing complete non-functioning for anything over 5V.
Yea. Be clear about your build and assembly process.
- the__alchemist 4y agoI don't think this takes away from the article's point: The shortage is forcing unusual design decisions that introduce classes of error that wouldn't occur with normal design processes.
- SV_BubbleTime 4y agoWhich is fine; it just didn’t make sense as written. It looked to me like the mfg made layouts for two chips, but the blog writer implied one chip would not work as in would never work. Obviously it does, and the problem was actually missing discrete components elsewhere.
- bogantech 4y agoIt's all in there already, "requiring two boms" "not just possible to ONLY replace IP2315 by CH224D"