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使用24AA025E64和STM32L496AG为您的应用提供唯一的节点地址

您网络的唯一身份

MAC Address Click with Discovery kit with STM32L496AG MCU

已发布 7月 22, 2025

点击板

MAC Address Click

开发板

Discovery kit with STM32L496AG MCU

编译器

NECTO Studio

微控制器单元

STM32L496AG

通过我们的解决方案赋予您的应用程序一个独特的节点身份,提供一种无缝和标准化的方法来分配唯一的MAC地址,以优化网络通信和管理。

A

A

硬件概览

它是如何工作的?

MAC Address Click基于24AA025E64,这是一款来自Microchip的具有预编程IEEE EUI-64 MAC地址的2Kb串行EEPROM。该设备被组织为两个128 x 8位内存块,带有2线串行接口。低电压设计允许在最低1.7V的电压下工作,最大待机和工作电流分别只有1uA和1mA。24AA025E64还具有最多16字节数据的页写入

能力。MAC Address Click为您的应用程序提供一个独特的节点地址。它还具有1Kbit的可写EEPROM内存。MAC Address Click搭载了带有EUI-64™节点身份的24AA025E64 2K I2C串行EEPROM。点击板设计为可以在3.3V或5V电源上运行。MAC Address Click通过I2C接口与目标微控制器通信。这个Click board™可以

通过PWR SEL跳线选择使用3.3V或5V逻辑电压级别,这样,3.3V和5V能力的MCU都可以正确使用通信线。此外,这个Click board™还配备了一个包含易于使用的功能和示例代码的库,可用作进一步开发的参考。

MAC Address Click top side image
MAC Address Click bottom side image

功能概述

开发板

32L496GDISCOVERY Discovery 套件是一款功能全面的演示和开发平台,专为搭载 Arm® Cortex®-M4 内核的 STM32L496AG 微控制器设计。该套件适用于需要在高性能、先进图形处理和超低功耗之间取得平衡的应用,支持无缝原型开发,适用于各种嵌入式解决方案。STM32L496AG 采用创新的节能架构,集成

了扩展 RAM 和 Chrom-ART 图形加速器,在提升图形性能的同时保持低功耗,使其特别适用于音频处理、图形用户界面和实时数据采集等对能效要求较高的应用。为了简化开发流程,该开发板配备了板载 ST-LINK/V2-1 调试器/编程器,提供即插即用的调试和编程体验,使用户无需额外硬件即可轻松加载、调

试和测试应用程序。凭借低功耗特性、增强的内存能力以及内置调试工具,32L496GDISCOVERY 套件是开发先进嵌入式系统、实现高效能解决方案的理想选择。

Discovery kit with STM32L496AG MCU double side image

微控制器概述 

MCU卡片 / MCU

STM32L496AG Image

建筑

ARM Cortex-M4

MCU 内存 (KB)

1024

硅供应商

STMicroelectronics

引脚数

169

RAM (字节)

327680

使用的MCU引脚

mikroBUS™映射器

NC
NC
AN
NC
NC
RST
NC
NC
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
PB8
SCL
I2C Data
PB7
SDA
Power Supply
5V
5V
Ground
GND
GND
1

“仔细看看!”

Click board™ 原理图

MAC Address Click Schematic schematic

一步一步来

项目组装

Discovery kit with STM32H750XB MCU front image hardware assembly

从选择您的开发板和Click板™开始。以Discovery kit with STM32L496AG MCU作为您的开发板开始。

Discovery kit with STM32H750XB MCU front image hardware assembly
Thermo 21 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
Discovery kit with STM32H750XB MCU NECTO MCU Selection Step hardware assembly
Necto No Display image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Necto image step 11 hardware assembly

软件支持

库描述

这个库包含了MAC Address Click驱动的API。

关键功能:

  • macaddress_get_mac - 通用读取MAC地址功能

  • macaddress_read_byte - 通用读取数据字节功能

开源

代码示例

完整的应用程序代码和一个现成的项目可以通过NECTO Studio包管理器直接安装到NECTO Studio 应用程序代码也可以在MIKROE的GitHub账户中找到。

/*!
 * \file 
 * \brief MacAddress Click example
 * 
 * # Description
 * Provides a unique node address for your application.
 *
 * The application is composed of two sections :
 * 
 * ## Application Init 
 * Initialization driver enables - I2C, also write log.
 * 
 * ## Application Task - (code snippet) This is an example which demonstrates the use of MAC Address Click board.
 * MAC Address Click communicates with register via I2C protocol by the write to register and read from the register.
 * This example shows write/read single byte and sequential write/read from EEPROM.
 * Results are being sent to the Usart Terminal where you can track their changes.
 * All data logs write on USB uart changes for every 1 sec.
 * 
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "macaddress.h"


// ------------------------------------------------------------------ VARIABLES

static macaddress_t macaddress;
static log_t logger;

static uint8_t *write_data[ 3 ] = { "MikroE", "MAC Address", "MikroElektronika" };

static uint8_t data_len[ 3 ] = { 6 , 11, 16 };

static uint8_t mac_addr[ 8 ] = { 0 };

static uint8_t data_cnt;

static uint8_t read_buff[ 50 ] = { 0 };

static uint8_t address = 0x10;

// ------------------------------------------------------ APPLICATION FUNCTIONS

void application_init ( void )
{
    log_cfg_t log_cfg;
    macaddress_cfg_t cfg;

    /** 
     * 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.

    macaddress_cfg_setup( &cfg );
    MACADDRESS_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    macaddress_init( &macaddress, &cfg );
    
    macaddress_get_mac( &macaddress, mac_addr );
    
    log_printf( &logger, " > MAC Address: 0x" );
    for ( uint8_t cnt = 0; cnt < 8; cnt++ )
    {
        log_printf( &logger, "%.02X", (uint16_t)mac_addr[ cnt ] );
    }
    log_printf( &logger, "\r\n" );

    Delay_ms ( 1000 );
    log_info( &logger, "---- Application Task ----" );
    data_cnt = 0;
}

void application_task ( void )
{
    log_printf( &logger, " > Writing data to memory...\r\n" );
    Delay_ms ( 100 );
    macaddress_generic_write( &macaddress, address, write_data[ data_cnt ], data_len[ data_cnt ] );
    log_printf( &logger, " > Writing done.\r\n" );
    Delay_ms ( 1000 );
    
    
    log_printf( &logger, " > Reading data from memory...\r\n" );
    macaddress_generic_read( &macaddress, address, read_buff, data_len[ data_cnt ] );
    Delay_ms ( 100 );
    log_printf( &logger, " > Read data: " );
    for( uint8_t cnt = 0; cnt < data_len[ data_cnt ]; cnt++ )
    {
        log_printf( &logger, "%c", read_buff[ cnt ] );
    }
    log_printf( &logger, "\r\n" );
    Delay_ms ( 100 );
    log_printf( &logger, " > Reading done.\r\n" );
    log_printf( &logger, "---------------------------------\r\n" );
    data_cnt++;
    if ( data_cnt >= 3 )
        data_cnt = 0;
    
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

int main ( void ) 
{
    /* Do not remove this line or clock might not be set correctly. */
    #ifdef PREINIT_SUPPORTED
    preinit();
    #endif
    
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

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

额外支持

资源

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