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mikroSDK Library

EEPROM 3 click

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Author: MikroElektronika Team

Last Updated: 2018-03-19

Category: Storage

Downloaded: 1099 times

Followed by: 7 users

EEPROM 3 click carries Atmel’s AT24CM02 DIP-8 socket EEPROM chip with 256 KB of memory. The board communicates with the target MCU through the mikroBUS I2C interface (SCL, SDA pins) with speeds up to 1 MHz. The chip allows for an entire page of data to be written in a single cycle. The board is designed to use either a 3.3V or a 5V power supply.

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mikroSDK Library Blog

EEPROM 3 click

EEPROM 3 click

Native view of the EEPROM 3 click

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Front / Back view

Front / Back view

EEPROM 3 click front and back view

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Library Description

This library provides generic functions enough to have complete control ove EEPROM 3 click board.

Key functions:

  • void eeprom3_writePage( uint16_t address, uint8_t *_data, uint8_t count ); - Writes data to the EEPROM ( maximum 256 Bytes ).
  • void eeprom3_read( uint16_t address, uint8_t *buffer, uint16_t count ); - Reads data from EEPROM.

Examples Description

The application is composed of three sections:

  • System Initialization - CS GPIO as the output pin, initializes SPI and UART for logging.
  • Application Initialization -  Initializes EEPROM 3 driver.
  • Application Task - writing data to EEPROM, reading that data and displaying it via UART.
void applicationTask()
{

 eeprom3_writePage(0x0423, &text[0], 6);
 mikrobus_logWrite("Writing Mikroe to EEPROM 3 click", _LOG_LINE);
 Delay_ms(1000);
 eeprom3_read(0x0423,&memValue[0],6);
 mikrobus_logWrite("Data read:", _LOG_LINE);
 mikrobus_logWrite(memValue, _LOG_LINE);
 Delay_ms(1000);

}

Other mikroE Libraries used in the example:

  • I2C
  • UART

Additional notes and information

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. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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