On-board EEPROM Read

R2026b

Read data from on–board Arduino EEPROM

Since R2024a

• 

On-board EEPROM Read block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink Support Package for Arduino Hardware / Common

Description

Add-On Required: This feature requires the Simulink Support Package for Arduino Hardware add-on.

Use the On-board EEPROM Read block to read nonvolatile data from the on–board Arduino^® electrically erasable programmable read–only memory (EEPROM). The block reads and outputs one byte of data at a time from the on–board Arduino EEPROM.

This table lists the memory size and the accessibility address range of on–board EEPROM of these Arduino boards.

Arduino Board	Size of On–Board EEPROM	Accessible Address Range
Arduino Mega 2560 and Mega ADK	4096 bytes	0 to 4095
Arduino Uno	1024 bytes	0 to 1023
Arduino Leonardo	1024 bytes	0 to 1023
Arduino Micro	1024 bytes	0 to 1023
Arduino Nano 3.0	1024 bytes	0 to 1023
Arduino Nano R4, Uno R4 Wi-Fi®, Uno R4 Minima	8192 bytes	0 to 8191

Ports

Output

Data — Data from Arduino EEPROM

matrix

The block outputs a N-by-1 or 1-by-N matrix of data that is has read from the Arduino EEPROM.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32

Parameters

Start address — EEPROM starting address

1 (default) | positive integer

Enter the starting memory address of the on–board Arduino EEPROM from where the read operation must begin.

Note

The total size of the retrieved data type must not exceed the maximum number of addressable on–board Arduino EEPROM memory locations from the starting address specified in this parameter. For example, for the Arduino Uno board and uint8 input data type, the starting address of the EEPROM must not exceed 1021.

Data type — Data type of data to read from EEPROM

uint8 (default) | int8 | int16 | uint16 | int32 | uint32 | single | double

Select the data type of the data to read from the on–board Arduino EEPROM.

Data size (N) — Size of data to read from EEPROM

1 (default) | positive integer

Specify the size of the data to read from the on–board Arduino EEPROM based on the data type specified in the Data type parameter.

Sample time — Frequency at which block reads data

0.1 (default) | scalar

Specify how often the block reads data from the on–board Arduino EEPROM.

Version History

Introduced in R2024a

R2026b: Support added for Arduino Nano R4 board

You can deploy model containing the On-board EEPROM Read to the Arduino Nano R4 board.