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what is the best way to communicate between 2 1064/2 SoCs?

Question asked by ODED G on Aug 11, 2019
Latest reply on Oct 31, 2019 by Kerry Zhou

I am designing a board with 2 RT1064 and I need them to exchange data in rates of min 350bps. what is the best way?

of course I want to keep number of pins to minimum. does SPI support this rate? 

can I use the eMMC interface for that? 

since the master is communicate with 2 SoCs, I need to take into account that there is 2 interfaces from that type. thats why I cant use the R/MII interface.