1.10 SPI Driver Asynchronous - SPI Multi Client

This example application demonstrates the multi client feature of the asynchronous mode of the SPI driver by reading and writing to two EEPROMs connected to the same SPI bus.

Description

This application uses the asynchronous mode of the SPI driver and demonstrates the multi client feature by reading and writing to two EEPROMs connected to the same SPI bus. The example also demonstrates how to setup two different client transfers at two different baud rates.

The application communicates with two EEPROM 4 click boards that has AT24CM02 EEPROM on it.

Downloading and Building the Application

To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.

Path of the application within the repository is apps/driver/spi/async/spi_multi_slave/firmware.

To build the application, refer to the following table and open the project using its IDE.

Project NameDescription
sam_g55_xpro.XMPLABX project for SAM G55 Xplained Pro Evaluation Kit

Setting Up the Hardware

The following table shows the target hardware for the application projects.

Project NameDescription
sam_g55_xpro.X SAM G55 Xplained Pro Evaluation Kit

Running the Application

  1. Build and Program the application using its IDE.
  2. The LED indicates success or failure.
    • The LED turns ON when the data read from the EEPROMs matches with the data written to the EEPROMs.
Refer to the following table for LED name:
BoardLED Name
SAM G55 Xplained Pro Evaluation KitLED0