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TMS320F28035: Serial Communication

Part Number: TMS320F28035

Hi,

I have three F28035 Piccolo, I want to connect this three MCU with UART or SPI.

1) For SPI communication I want to change master-slave configuration any time. For example MCU1 master and MCU2 slave after a while I want to change MCU1 with slave and MCU2 with master. Is it possible to do this?

2) For UART communication in F28035 I have one UART module, but can I use this module for communicate two other devices?

3) Is it more effective to communicate these three MCUs with the daisy chain?

Thanks for Help.