I2C Sample Application

This example demonstrates the usage of the I2C API by accessing and controlling an external I2C EEPROM memory. Application can perform read, write and erase actions displaying results in an hexadecimal list view.

Demo requirements

To run this example you need:

• A compatible development board to host the application.
• A USB connection between the board and the host PC in order to transfer and launch the application.
• An external EEPROM memory connected to the I2C port of the development board. EEPROM family 24LCXX is recommended.

Demo setup

Make sure the hardware is set up correctly:

1. The development board is powered on.
2. The board is connected directly to the PC by the micro USB cable.
3. The EEPROM memory is correctly connected to the I2C connector of the development board.

Demo run

The example is already configured, so all you need to do is to build and launch the project.

While it is running, the application displays a configuration page with the following parameters:

• I2C Interface: I2C interface where EEPROM memory is connected to the module. By default interface 1.
• Slave Address: EEPROM Memory slave address within the I2C interface. Consult memory datasheet for further information.

The application allows you to open the I2C interface connection against the EEPROM memory. Once connection is established, you can:

• Read EEPROM Data: Reads and displays first 256 bytes of the memory.
• Write EEPROM Data: Writes first 256 bytes of the memory with values from 0 to 255.
• Erase EEPROM Data: Erases first 256 bytes of the memory by writing FF on them.

Compatible with

• ConnectCore 6 SBC
• ConnectCore 6 SBC v3
• ConnectCore 8X SBC Pro
• ConnectCore 8M Mini Development Kit

License

Copyright (c) 2014-2021, Digi International Inc. support@digi.com

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.