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   Andrew Zonenberg (azonenberg@ioc.exchange)'s status on Saturday, 11-May-2024 03:51:24 JST Andrew Zonenberg

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   Welp. Memory mapping anything but actual memory via OCTOSPI seems to be full of dragons, I have a support case opened with ST but am not hopeful.

   Tl;dr there is a 32-byte prefetch cache that doesn't seem possible to turn off. So any kind of read-with-side-effects or status register doesn't seem practical to implement.

   Unless there's a chicken bit to turn it off, which is always possible (I opened a support ticket to ask).