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Source code structure

Directory Structure

A typical SPI application will have at least three top level directories. The application will be contained in a directory starting with app_, the spi component source is in the module_spi_master|slave directory and the directory module_xcommon contains files required to build the application.

app_[my_app_name]/
module_spi_master|slave/
module_xcommon/

Of course the application may use other modules which can also be directories at this level. Which modules are compiled into the application is controlled by the USED_MODULES define in the application Makefile.

Key Files

The following header files contain prototypes of all functions required to use use the SPI components. The API is described in SPI API.

Key Files

File	Description
spi_master.h	SPI master API header file
spi_slave.h	SPI slave API header file