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Compute Module • I2C problem at 85°C / Clock-stretching

Hello,

I am observing a problem with I2C. When the CPU temperature is increased to about 85°C the CPU starts to clock down. Only at these times I have I2C problems. The problems are manifested by the fact that bytes are often not transferred correctly. Often one or more bits are missing. Is it possible to tell the clock management that the I2C unit always has the same clock rate?
Also this “feature” clock-streching, is it possible to deactivate this?

Statistics: Posted by gs105 — Tue Jul 30, 2024 10:31 am



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