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Interfacing (DSI, CSI, I2C, etc.) • Re: custom I2C behaves strangely SDA=GPIO5 SCL=GPIO6

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my interpretation of the first scope shot, is that your pull-up is too weak for the i2c clock rate
its not reaching vcc before the next bit begins

you either need to use a stronger pullup
or a slower clock rate

Hello :D , and the truth is, it seems as if the signal does not have time to grow. I have 10k I will try to reduce it.
I know that the custom bus does not have built-in resistors.

Thanks

Statistics: Posted by Nick_MR — Fri Aug 02, 2024 4:28 pm



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