1.24 SERCOM SPI EEPROM Read Write

This example application demonstrates how to use the SERCOM SPI peripheral to write and read from the SPI serial EEPROM memory.

Description

This example uses the SERCOM SPI peripheral library to write an array of values to the SPI Serial EEPROM and verify the value written by reading the values back and comparing it to the value written.

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/sercom/spi/spi_eeprom_write_read/firmware.

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

Project NameDescription
sam_d21_xpro.XMPLABX project for SAM D21 Xplained Pro Evaluation Kit
sam_da1_xpro.XMPLABX project for SAM DA1 Xplained Pro Evaluation Kit

Setting Up the Hardware

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

Project NameDescription
sam_d21_xpro.XSAM D21 Xplained Pro Evaluation Kit
sam_da1_xpro.XSAM DA1 Xplained Pro Evaluation Kit

Running the Application

  1. Build and Program the application project using its IDE
  2. LED indicates the success or failure:
    • LED is turned ON when the value read from the EEPROM matched with the written value
    • LED is turned OFF when the value read from the EEPROM did not match with the written value
Following table provides the LED name:
BoardLED Name
SAM D21 Xplained Pro Evaluation KitLED0
SAM DA1 Xplained Pro Evaluation KitLED0