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pic i2c slave is "not found"
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Ttelmah

Joined: 11 Mar 2010
Posts: 19658


Posted: Wed Nov 10, 2021 6:25 am

It is interesting. If you build with the old compiler (don't have this one, but one quite close), it uses the same access maths when using a temporary variable. I was hoping this would change.

webgiorgio

Joined: 02 Oct 2009
Posts: 123
Location: Denmark

Posted: Wed Nov 10, 2021 8:57 am

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CCS support gave me the solution Very Happy

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The issue is that version 5.034 is incorrectly setting the SDISEL bit in the APFCON1 register, and that is causing it not to work. This issue was fixed in newer versions of the compiler. You can work around it in your version by creating a variable mapped to the location of the SDISEL bit as follows:

#bit SDISEL = getenv("SFR:APFCON1").3

Then setting SDISEL to 0 at the beginning of main() as follows:

SDISEL = 0;

Ttelmah

Joined: 11 Mar 2010
Posts: 19658


Posted: Wed Nov 10, 2021 11:03 am

That's interesting. PCM's code from 5.034, doesn't seem to have this bit set.

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