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Communicating two efm32 microcontrollers via SPI

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sabra88

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Hello everybody,
I want to communicate two efm32 mcu via spi.

I started with simple UART interrupt driven and then polling and I was able to receive data.

But when i switched to the USART (adding CLOCK), i couldn't receive the data in the slave mcu.

Could any one explain me what am I missing ?
 

There could be either of the two errors,mentioned in this,that could be occurring in your system.

https://web.engr.oregonstate.edu/~traylor/ece473/lectures/uart.pdf

Read this and figure out,in which category does your error fall into.Also,get CRO readings on the ports to ensure that the data communication is actually taking place or not.
 

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