Explore the limitless possibilities of data storage with our EEPROM solution.
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Hardware Overview
How does it work?
EEPROM 11 Click is based on the S-34C04AB, an EEPROM memory for DIMM serial presence detection from ABLIC. The EEPROM uses a Schmitt trigger and noise filter on the I2C bus for noise suppression. The S-34C04AB has a timeout function that can reset the I2C interface and return to standby mode. This timeout is typically 30ms. The EEPROM also allows you to write a byte or a page. The page write mode allows up to 16
bytes to be written in a single operation. The IC also has set protection for block n, clear write protection for all blocks, and read protection status for block n. As for reading, you can read a current address, a random read, or a sequential read. EEPROM 11 Click uses a standard 2-wire I2C interface to communicate with the host MCU, supporting clock frequencies of up to 1MHz. You can set the desired I2C address over three ADDR
SEL jumpers, with 0s selected by default. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. 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 v7a for STM32 is the seventh generation of ARM development boards specially designed to develop embedded applications rapidly. It supports a wide range of 32-bit ARM microcontrollers from STMicroelectronics and a broad set of unique functions, such as the first-ever embedded debugger/programmer over USB-C. 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 v7afor STM32 allows you to connect accessory boards, sensors, and custom electronics more efficiently than ever. Each part of the EasyMx
PRO v7a for STM32 development board contains the components necessary for the most efficient operation of the same board. In addition to the advanced integrated CODEGRIP programmer/debugger module, which offers many valuable programming/debugging options and seamless integration with the Mikroe software environment, the board 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-C (USB-C) 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 32-bit ARM MCUs like STM32 Cortex-M3, -M7, and -M4 MCUs. EasyMx PRO v7afor STM32 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
![default](https://s3.us-west-2.amazonaws.com/dbp-cdn.mikroe.com/catalog/mcu-cards/resources/1ed9d577-eb07-6d9c-a5c9-0242ac13000c/easymx-pro-v7-stm32-stm32f207vgt6.png)
Type
7th Generation
Architecture
ARM Cortex-M3
MCU Memory (KB)
10
Silicon Vendor
STMicroelectronics
Pin count
100
RAM (Bytes)
100
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
![EEPROM 11 Click Schematic schematic](https://dbp-cdn.mikroe.com/catalog/click-boards/resources/1ee82c33-d30f-6a7a-9772-0242ac120003/EEPROM-11-click-v100-Schematic-1.png)
Step by step
Project assembly
Track your results in real time
Application Output
After pressing the "FLASH" button on the left-side panel, it is necessary to open the UART terminal to display the achieved results. By clicking on the Tools icon in the right-hand panel, multiple different functions are displayed, among which is the UART Terminal. Click on the offered "UART Terminal" icon.
![UART Application Output Step 1](https://dbp-cdn.mikroe.com/cms/shared-resources/1eed703a-40a0-6b58-88de-02420a00029a/UART-AO-Step-1.jpg)
Once the UART terminal is opened, the window takes on a new form. At the top of the tab are two buttons, one for adjusting the parameters of the UART terminal and the other for connecting the UART terminal. The tab's lower part is reserved for displaying the achieved results. Before connecting, the terminal has a Disconnected status, indicating that the terminal is not yet active. Before connecting, it is necessary to check the set parameters of the UART terminal. Click on the "OPTIONS" button.
![UART Application Output Step 2](https://dbp-cdn.mikroe.com/cms/shared-resources/1eed703a-eb29-62fa-ba91-02420a00029a/UART-AO-Step-2.jpg)
In the newly opened UART Terminal Options field, we check if the terminal settings are correct, such as the set port and the Baud rate of UART communication. If the data is not displayed properly, it is possible that the Baud rate value is not set correctly and needs to be adjusted to 115200. If all the parameters are set correctly, click on "CONFIGURE".
![UART Application Output Step 3](https://dbp-cdn.mikroe.com/cms/shared-resources/1eed703b-7543-6fbc-9c69-0242ac120003/UART-AO-Step-3.jpg)
The next step is to click on the "CONNECT" button, after which the terminal status changes from Disconnected to Connected in green, and the data is displayed in the Received data field.
![UART Application Output Step 4](https://dbp-cdn.mikroe.com/cms/shared-resources/1eed703c-068c-66a4-a4fc-0242ac120003/UART-AO-Step-4.jpg)
Software Support
Library Description
This library contains API for EEPROM 11 Click driver.
Key functions:
eeprom11_page_write
- EEPROM 11 page write function.eeprom11_clear_page
- EEPROM 11 page clear function.eeprom11_set_page_addr
- EEPROM 11 set page address function.
Open Source
Code example
This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.
/*!
* @file main.c
* @brief EEPROM 11 Click example
*
* # Description
* This is an example that demonstrates the use of the EEPROM 11 Click board.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes the driver and USB UART logging, disables write protection.
*
* ## Application Task
* Writes a desired number of data bytes to the EEPROM 11 memory into a specified address,
* and verifies that it is written correctly by reading from the same memory location.
*
* @author Stefan Ilic
*
*/
#include "board.h"
#include "log.h"
#include "eeprom11.h"
#define TX_DATA "EEPROM 11 Click"
#define MEMORY_ADDRESS 0x00
static eeprom11_t eeprom11;
static log_t logger;
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
eeprom11_cfg_t eeprom11_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.
eeprom11_cfg_setup( &eeprom11_cfg );
EEPROM11_MAP_MIKROBUS( eeprom11_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == eeprom11_init( &eeprom11, &eeprom11_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( EEPROM11_ERROR == eeprom11_default_cfg ( &eeprom11 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
void application_task ( void )
{
err_t error_flag = EEPROM11_OK;
uint8_t rx_data[ 16 ] = { 0 };
uint8_t tx_data[ 16 ] = TX_DATA;
eeprom11_clear_page( &eeprom11, MEMORY_ADDRESS );
Delay_ms( 1000 );
error_flag = eeprom11_page_write( &eeprom11, MEMORY_ADDRESS, tx_data );
if ( EEPROM11_OK == error_flag )
{
log_printf( &logger, " Write data: %s \r\n", tx_data );
}
else
{
log_error( &logger, " Write operation failed!!! " );
}
Delay_ms( 1000 );
error_flag = eeprom11_generic_read( &eeprom11, MEMORY_ADDRESS, rx_data, 15 );
if ( EEPROM11_OK == error_flag )
{
log_printf( &logger, "Read data: %s \r\n", rx_data );
}
else
{
log_error( &logger, " Write operation failed!!! " );
}
log_printf( &logger, " - - - - - - - - - - - \r\n" );
Delay_ms( 2000 );
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END