Unsolved Master-slave configuration between two Spresense boards

[NavaneethRao 2]

Hi,

I wanted to establish a master-slave connection between two Spresense boards using SPI protocol.

I see that both SPI terminals SPI5 and, SPI4 present in main board and extension board respectively works in master mode only.

From the SPI list info present in CXD5602 user manual, I see that SPI0, SPI3, SPI4, and SPI5 all works in master mode only.

Is there a way to communicate between the two with one as master and other as a slave?

Thanks in advance.

BR
Navaneeth

[CamilaSouza]

Hi, @NavaneethRao-2

Our documentation lists some differences between the Spresense board and Arduino UNO.
Under this differences it says the while the UNO can be support both master and slave mode, the Spresense only supports master mode.

https://developer.sony.com/develop/spresense/docs/hw_docs_en.html#_differences_between_spresense_and_arduino_uno