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You know that ATmega32 supports Universal Asynchronous Receiver/Transmitter.

with pins : RXD & TXD

But it doesn't support Universal synchronous Receiver/Transmitter.

with pins : RXD/TXD & CLOCK

What should I do to be able to use both the USRT and UART interfaces on my microcontroller?

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1 Answer 1

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ATMega32 has one USART that works either in synchronous (RXD,TXD,XCK) or asynchronous (RXD,TXD) mode, but not both.

If you need second synchronous port, use SPI.

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