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the Sapient Primate Intelligence 3: return to monkey (SPI3 bug)#129

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tmb5932 merged 1 commit intomainfrom
bug/tmb5932/spi3
Feb 17, 2026
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the Sapient Primate Intelligence 3: return to monkey (SPI3 bug)#129
tmb5932 merged 1 commit intomainfrom
bug/tmb5932/spi3

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@tmb5932 tmb5932 commented Feb 17, 2026

A bug was found where SPI3 simply didnt work. No data would be transmitted, but the clock signal did exist.

Turns out, SPI3's primary Alternate Function mapping is AF6, and was incorrectly put as AF5.
AF5 is the primary AF for SPI's 1 and 2, but not 3, and this was a rookie mistake made by a rookie (freshman me).

I put the blame squarely on the team lead of that time, Master Magee himself. Who in their right minds puts rock-eating freshmen (me) on things as important as EVT-core...

This should fix the issue our MSD student making the BMS was having :)

Proof it fixed it: (video only stays for like a couple days or something so lmk if it expires)

https://streamable.com/9tqatu

…ectly put as AF5. AF5 does not have clock support for SPI3, so that was where the issue was coming from.
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Love it.

@tmb5932 tmb5932 merged commit 58e02fa into main Feb 17, 2026
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@tmb5932 tmb5932 deleted the bug/tmb5932/spi3 branch February 17, 2026 01:36
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3 participants