Beginner
10 min

Provide additional memory storage to your project with M24M01E-F and PIC32MZ2048EFM100

1Mbit EEPROM memory with the configurable device address and software write protection registers

EEPROM 13 Click with Curiosity PIC32 MZ EF

Published Feb 16, 2024

Click board™

EEPROM 13 Click

Dev. board

Curiosity PIC32 MZ EF

Compiler

NECTO Studio

MCU

PIC32MZ2048EFM100

Electrically erasable programmable memory (EEPROM) with enhanced hardware write protection that stores important data securely, like settings or information, even when the power is turned off

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Hardware Overview

How does it work?

EEPROM 13 Click is based on the M24M01E, an electrically erasable programmable memory with enhanced hardware write protection for entire memory from STMicroelectronics. The M24M01E has software and hardware write protection features and random and sequential read modes. If the address area is write-protected, the write instruction is not executed. During the internal write cycle, the serial data is turned off internally, and the

device does not respond to any requests. The performance features cover enhanced ESD/latch-up protection, more than 4 million write cycles, more than 200 years of data retention, and a very fast wake-up time (less than 5μs). EEPROM 13 Click uses a standard 2-wire I2C interface to communicate with the host MCU, supporting standard, fast, and fast mode plus with up to 1MHz of frequency clock. The write control WC pin serves

as a write protect option and is active with a High logic state. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.

EEPROM 13 Click hardware overview image

Features overview

Development board

Curiosity PIC32 MZ EF development board is a fully integrated 32-bit development platform featuring the high-performance PIC32MZ EF Series (PIC32MZ2048EFM) that has a 2MB Flash, 512KB RAM, integrated FPU, Crypto accelerator, and excellent connectivity options. It includes an integrated programmer and debugger, requiring no additional hardware. Users can expand

functionality through MIKROE mikroBUS™ Click™ adapter boards, add Ethernet connectivity with the Microchip PHY daughter board, add WiFi connectivity capability using the Microchip expansions boards, and add audio input and output capability with Microchip audio daughter boards. These boards are fully integrated into PIC32’s powerful software framework, MPLAB Harmony,

which provides a flexible and modular interface to application development a rich set of inter-operable software stacks (TCP-IP, USB), and easy-to-use features. The Curiosity PIC32 MZ EF development board offers expansion capabilities making it an excellent choice for a rapid prototyping board in Connectivity, IOT, and general-purpose applications.

Curiosity PIC32MZ EF double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

PIC32

MCU Memory (KB)

2048

Silicon Vendor

Microchip

Pin count

100

RAM (Bytes)

524288

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
Write Control
RA9
RST
ID COMM
RPD4
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
NC
NC
PWM
NC
NC
INT
NC
NC
TX
NC
NC
RX
I2C Clock
RPA14
SCL
I2C Data
RPA15
SDA
Power Supply
5V
5V
Ground
GND
GND
1

Take a closer look

Click board™ Schematic

EEPROM 13 Click Schematic schematic

Step by step

Project assembly

Curiosity PIC32MZ EF front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Curiosity PIC32 MZ EF as your development board.

Curiosity PIC32MZ EF front image hardware assembly
GNSS2 Click front image hardware assembly
Prog-cut hardware assembly
Board mapper by product7 hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
Necto image step 5 hardware assembly
Necto image step 6 hardware assembly
Curiosity PIC32 MZ EF MCU Step hardware assembly
Necto No Display image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Debug Image Necto Step hardware assembly

Track your results in real time

Application Output

1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.

2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.

3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.

Software Support

Library Description

This library contains API for EEPROM 13 Click driver.

Key functions:

  • eeprom13_memory_write - This function writes a desired number of data bytes starting from the selected memory address

  • eeprom13_memory_read - This function reads a desired number of data bytes starting from the selected memory address

  • eeprom13_hw_write_enable - This function disabled hardware write protection of the entire memory

Open Source

Code example

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

/*!
 * @file main.c
 * @brief EEPROM 13 Click example
 *
 * # Description
 * This example demonstrates the use of EEPROM 13 click board?.
 * The demo app writes specified data to the memory and reads it back.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * The initialization of I2C module, log UART, and additional pins.
 *
 * ## Application Task
 * The demo application writes a desired number of bytes to the memory 
 * and then verifies if it is written correctly
 * by reading from the same memory location and displaying the memory content.
 * Results are being sent to the UART Terminal, where you can track their changes.
 *
 * @author Nenad Filipovic
 *
 */

#include "board.h"
#include "log.h"
#include "eeprom13.h"

#define STARTING_ADDRESS             0x12345
#define DEMO_TEXT_MESSAGE_1         "MikroE"
#define DEMO_TEXT_MESSAGE_2         "EEPROM 13 Click"

static eeprom13_t eeprom13;
static log_t logger;

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    eeprom13_cfg_t eeprom13_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    eeprom13_cfg_setup( &eeprom13_cfg );
    EEPROM13_MAP_MIKROBUS( eeprom13_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == eeprom13_init( &eeprom13, &eeprom13_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    Delay_ms( 100 );
    
    log_info( &logger, " Application Task " );
    Delay_ms( 100 );
}

void application_task ( void ) 
{
    uint8_t data_buf[ 128 ] = { 0 };
    memcpy( data_buf, DEMO_TEXT_MESSAGE_1, strlen( DEMO_TEXT_MESSAGE_1 ) );
    if ( EEPROM13_OK == eeprom13_memory_write( &eeprom13, STARTING_ADDRESS, 
                                                          data_buf, 
                                                          strlen( DEMO_TEXT_MESSAGE_1 ) ) )
    {
        log_printf( &logger, " Write data: %s\r\n", data_buf );
        Delay_ms( 100 );
    }
    
    memset( data_buf, 0, sizeof( data_buf ) );
    Delay_ms( 100 );
    if ( EEPROM13_OK == eeprom13_memory_read( &eeprom13, STARTING_ADDRESS, 
                                                         data_buf, 
                                                         strlen( DEMO_TEXT_MESSAGE_1 ) ) )
    {
        Delay_ms( 100 );
        log_printf( &logger, " Read data: %s\r\n\n", data_buf );
        Delay_ms( 3000 );
    }
    
    memcpy( data_buf, DEMO_TEXT_MESSAGE_2, strlen( DEMO_TEXT_MESSAGE_2 ) );
    if ( EEPROM13_OK == eeprom13_memory_write( &eeprom13, STARTING_ADDRESS, 
                                                          data_buf, 
                                                          strlen( DEMO_TEXT_MESSAGE_2 ) ) )
    {
        log_printf( &logger, " Write data: %s\r\n", data_buf );
        Delay_ms( 100 );
    }
    
    memset( data_buf, 0, sizeof( data_buf ) );
    Delay_ms( 100 );
    if ( EEPROM13_OK == eeprom13_memory_read( &eeprom13, STARTING_ADDRESS, 
                                                         data_buf, 
                                                         strlen( DEMO_TEXT_MESSAGE_2 ) ) )
    {
        Delay_ms( 100 );
        log_printf( &logger, " Read data: %s\r\n\n", data_buf );
        Delay_ms( 3000 );
    }
}

void main ( void ) 
{
    application_init( );

    for ( ; ; ) 
    {
        application_task( );
    }
}

// ------------------------------------------------------------------------ END

Additional Support

Resources

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