Communicate Two or More ARM devices through SPI protocol

[karthickefy]

Hi,
I would like to communicate two ARM/AVR devices through SPI protocol. But Flowcode7 has only SPI Master. I couldn't find the SPI Slave option in components. Please guide me how to build SPI Slave.

Karthick.

[karthickefy]

Dear Benj,
Is it possible to use SPI Master mode in both chips for SPI communication between Chip to chip? Or is there any other option for SPI Slave? Please guide.

Thanks.
Karthick

[Benj]

Hi Karthick,

SPI slave is a hard one to do across many devices using a generic component.

Would a UART connection via a RS485 transceiver be an option. There are some really nice RS485 transceivers out there that do the data direction switching for you.