Why can't the SDA0 (BCM_GPIO-0) pin be used?

tonytony
in Raspberry Pi & CrowPi

The SDA0 (BCM_GPIO-0) pin is reserved for Raspberry Pi startup detection, in order to control the power on/off of the PCBA board. So without this pin signal from the Raspberry Pi, the CrowPi2 will shutdown unexpectedly.

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