I2C & SPI - share clock lines?

by baum   Last Updated August 15, 2018 18:25 PM

I know mixing SPI and I2C is a bad idea, but, when using a microcontroller short on pins, is it safe to share clocks between both buses, provided both are running at bus-tolerable frequencies?

In my application, I plan on using one bus at a time, but I suppose this question applies even if that was not the case.

Tags : arduino i2c spi

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