EEPROM 10 Click

How does it work?

EEPROM 10 Click is based on the N24C32, a 32Kb I2C CMOS Serial EEPROM from onsemi. The EEPROM has excellent energy efficiency and can work in a wide power supply range. Data is written to the EEPROM by providing a starting address, then loading 1 to 32 contiguous bytes into a page write buffer, and then writing all data to non−volatile memory in just one internal write cycle. The same data can be read by providing a starting address and then shifting out data serially while automatically incrementing the internal address count.

The EEPROM 10 Click communicates with MCU using the standard I2C 2-Wire interface that supports Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1MHz) modes of operation. The address pins A0, A1, and A2 are programmed by the user and determine the value of the last three LSBs of the slave address, which can be selected by positioning onboard SMD jumpers labeled as ADDR SEL to an appropriate position marked as 0 or 1 (0 set by default). On the other side, the configurable Write Protection function, labeled WP routed to the default position of the PWM pin of the mikroBUS™ socket, allows the user to freeze the entire memory area, thus protecting it from Write instructions.

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. However, the 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.

Specifications

Pinout diagram

This table shows how the pinout on EEPROM 10 Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
	NC	1	AN	PWM	16	WP	Write Protection
	NC	2	RST	INT	15	NC
ID COMM	CS	3	CS	RX	14	NC
	NC	4	SCK	TX	13	NC
	NC	5	MISO	SCL	12	SCL	I2C Clock
	NC	6	MOSI	SDA	11	SDA	I2C Data
Power Supply	3.3V	7	3.3V	5V	10	5V	Power Supply
Ground	GND	8	GND	GND	9	GND	Ground

Onboard settings and indicators

EEPROM 10 Click electrical specifications

Software Support

We provide a library for the EEPROM 10 Click as well as a demo application (example), developed using MIKROE compilers. The demo can run on all the main MIKROE development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager (recommended), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for EEPROM 10 Click driver.

Key functions

• eeprom10_write_enable EEPROM 10 write enable function.

• eeprom10_write_n_byte EEPROM 10 write desired number of data function.

• eeprom10_read_n_byte EEPROM 10 read desired number of data function.

Example Description

This example demonstrates the use of EEPROM 10 Click board™ by writing specified data to the memory and reading it back.

void application_task ( void ) 
{
    err_t error_flag = EEPROM10_OK;

    error_flag = eeprom10_write_n_byte( &eeprom10, EEPROM10_TEST_ADDRESS, tx_data, 14 );
    if ( EEPROM10_OK == error_flag )
    {
        log_printf( &logger, " Write %s data to 0x%.4X address rn", tx_data, ( uint16_t ) EEPROM10_TEST_ADDRESS );
    }
    else
    {
        log_error( &logger, " Write operation failed!!! " );
    }
    Delay_ms( 100 );

    error_flag = eeprom10_read_n_byte( &eeprom10, EEPROM10_TEST_ADDRESS, rx_data, 14 );
    if ( EEPROM10_OK == error_flag )
    {
        log_printf( &logger, " Read %s from 0x%.4X address rn", rx_data, ( uint16_t ) EEPROM10_TEST_ADDRESS );
    }
    else
    {
        log_error( &logger, " Read operation failed!!! " );
    }
    Delay_ms( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager (recommended), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.EEPROM10

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MIKROE compilers.

mikroSDK

This Click board™ is supported with mikroSDK – MIKROE Software Development Kit, that needs to be downloaded from the LibStock and installed for the compiler you are using to ensure proper operation of mikroSDK compliant Click board™ demo applications.

For more information about mikroSDK, visit the official page.