spi_dma_b2b_transfer_slave
Overview
The spi_dma_board2board_slave example shows how to use spi driver as slave to do board to board transfer with DMA:
In this example, one spi instance as slave and another spi instance on other board as master. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from master is correct.