Experience data storage that transcends limitations using N24C32 and TM4C123GH6PMI
Write, repeat, remember: Unravel the power of EEPROM
Published Nov 11, 2023
Click board™
EEPROM 10 Click
Dev. board
EasyMx PRO v7 for Tiva
Compiler
NECTO Studio
MCU
TM4C123GH6PMI
Grant your data immortality with EEPROM. Elevate your storage game with a solution designed for endurance, reliability, and adaptability, securing your information for the long haul.
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Hardware Overview
How does it work?
EEPROM 10 Click is based on the N24C32, a 32Kb I2C CMOS Serial EEPROM from ON Semiconductor. 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. 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.
Features overview
Development board
EasyMx PRO v7 for TIVA is the seventh generation of ARM development boards specially designed for the needs of rapid development of embedded applications. It supports a wide range of 32-bit ARM microcontrollers from Texas Instruments and a broad set of unique functions, such as a powerful onboard mikroProg programmer and In-Circuit debugger over USB-B. The development board is well organized and designed so that the end-user has all the necessary elements, such as switches, buttons, indicators, connectors, and others, in one place. With two different connectors for each port, EasyMx PRO v7 for TIVA allows you to connect accessory boards, sensors, and custom electronics more efficiently than ever. Each part of the EasyMx
PRO v7 for TIVA development board contains the components necessary for the most efficient operation of the same board. An integrated mikroProg, a fast USB 2.0 programmer with mikroICD hardware In-Circuit Debugger, offers many valuable programming/debugging options and seamless integration with the Mikroe software environment. Besides it also includes a clean and regulated power supply block for the development board. It can use a wide range of external power sources, including an external 12V power supply, 7-23V AC or 9-32V DC via DC connector/screw terminals, and a power source via the USB Type-B (USB-B) connector. Communication options such as USB-UART, USB-HOST/DEVICE, CAN, and
Ethernet are also included, including the well-established mikroBUS™ standard, one display option for the TFT board line of products, and a standard TQFP socket for the seventh-generation MCU cards. This socket covers a wide range of 32-bit TIVA-series ARM Cortex-M4 MCUs. EasyMx PRO v7 for TIVA is an integral part of the Mikroe ecosystem for rapid development. Natively supported by Mikroe software tools, it covers many aspects of prototyping and development thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.
Microcontroller Overview
MCU Card / MCU
Type
7th Generation
Architecture
ARM Cortex-M4
MCU Memory (KB)
256
Silicon Vendor
Texas Instruments
Pin count
64
RAM (Bytes)
32k
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the EasyMx PRO v7 for Tiva as your development board.
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 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.
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 10 Click example
*
* # Description
* This example demonstrates the use of EEPROM 10 click board by writing specified data to
* the memory and reading it back.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes the driver and USB UART logging.
*
* ## Application Task
* In this example, we write and then read data from EEPROM memory.
* Results are being sent to the Usart Terminal where you can track their changes.
* All data logs write on USB UART changes approximately every second.
*
* @author Stefan Ilic
*
*/
#include "board.h"
#include "log.h"
#include "eeprom10.h"
#define EEPROM10_TEST_ADDRESS 0x0010u
static eeprom10_t eeprom10;
static log_t logger;
static uint8_t tx_data[ 15 ] = { 'E', 'E', 'P', 'R', 'O', 'M', '1', '0', ' ', 'C', 'l', 'i', 'c', 'k' };
static uint8_t rx_data[ 15 ] = { 0 };
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
eeprom10_cfg_t eeprom10_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.
eeprom10_cfg_setup( &eeprom10_cfg );
EEPROM10_MAP_MIKROBUS( eeprom10_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == eeprom10_init( &eeprom10, &eeprom10_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
eeprom10_write_enable( &eeprom10 );
log_info( &logger, " Application Task " );
}
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 \r\n", 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 \r\n", rx_data, ( uint16_t ) EEPROM10_TEST_ADDRESS );
}
else
{
log_error( &logger, " Read operation failed!!! " );
}
Delay_ms( 1000 );
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END
