spi_polling_master
Overview
The spi_polling_transfer_master example shows how to use spi driver as master to do board to board transfer with polling:
In this example, one spi instance as master and another spi instance on othere board as slave. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct. This example need to work with spi_polling_transfer_slave example.