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→I2C design notes
=== I2C design notes===
*I2C0 should be your default option, but it could be interesting use Optional I2Cs if your external peripheral need SPI1 is not recommended to use a huge transfer data connection.*Optional I2Cs needs to be pulled up externally, 5K resistor tied to 3V3 must be necessarybecause some lines are shared with UART0 Kernel Debug.
== MMC ==