The DMA channel chain example is a simple demonstration program that uses the SDK software.The purpose of this example is to show how to use the DMA channel chain feature.

The DMA memory to memory example is a simple demonstration program that uses the SDK software.It executes one shot polling transfer from source buffer to destination buffer using the SDK DMA drivers.The purpose of this example is to show how to use the DMA and to provide a simple example for debugging and further development.

The spi_half_duplex_int_transfer_master example shows how to use driver API to transfer in half-duplex way. In this example, one spi instance as master and another spi instance on the other 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.Besides, master will transfer data in interrupt way.