Intermediate
20 min

Provide a secure and energy-efficient environment for your applications with TCM515 and PIC32MZ2048EFM100

Freedom to communicate, anywhere, anytime!

EnOcean 3 Click with Curiosity PIC32 MZ EF

Published Nov 08, 2023

Click board™

EnOcean 3 Click

Dev. board

Curiosity PIC32 MZ EF

Compiler

NECTO Studio

MCU

PIC32MZ2048EFM100

Our ultra-low power transceiver gateway module is designed to seamlessly integrate EnOcean communication into your IoT ecosystem, enhancing connectivity and energy efficiency.

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Hardware Overview

How does it work?

EnOcean 3 Click is based on the TCM515, a transceiver gateway module that operates at 868MHz radio band module from EnOcean. Its fully integrated radio capability enables communications with other devices by using onboard PCB antenna, so no additional antennas are needed for testing this device. The TCM 515 can work in three functional modes: Telegram Reception, Telegram Transmission, Low Power Sleep. In receive mode, TCM 515 processes received radio telegrams and verify correct frame structure and checksum. In transmit mode, TCM 515 receives radio-telegrams for transmission from the external host via its ESP3 interface. TCM515 can be set into a low power sleep mode for a defined period of time, after the expiry of the requested sleep period,

TCM 515 will automatically wake-up and transition back to receive mode. Each TMC515 module contains its own EnOcean Unique Radio ID (EURID) which can be used during transmission for data authentication. Besides this feature, it's also possible setting for each module Base ID or Broadcast ID depending on the application that you are designing. Another important feature is SLF (Security Level Format) which specifies the parameters of the encryption, authentication and rolling code algorithms used for communication with a specific device, which enables TCM515 to encrypt and decrypt telegrams using AES128 based on a 16-byte security key. The TCM 515 provides a transparent radio link between EnOcean radio devices and an external host connected via UART

interface using the standardized EnOcean Serial Protocol V3 (ESP3) communication protocol. The default interface speed for this module of the ESP3 (UART) interface is 57600. Additionally, it is possible to change the default ESP3 interface speed at power up from 57600 Bit per second to 460800 Bit per second by moving TURBO jumper to EN position. This Click Board™ is designed to be operated only with 3.3V logic level. A proper logic voltage level conversion should be performed before the Click board™ is used with MCUs with logic levels of 5V. It is ready to be used as soon as it is inserted into a mikroBUS™ socket of the development system.

EnOcean 3 Click hardware overview image

Features overview

Development board

Curiosity PIC32 MZ EF development board is a fully integrated 32-bit development platform featuring the high-performance PIC32MZ EF Series (PIC32MZ2048EFM) that has a 2MB Flash, 512KB RAM, integrated FPU, Crypto accelerator, and excellent connectivity options. It includes an integrated programmer and debugger, requiring no additional hardware. Users can expand

functionality through MIKROE mikroBUS™ Click™ adapter boards, add Ethernet connectivity with the Microchip PHY daughter board, add WiFi connectivity capability using the Microchip expansions boards, and add audio input and output capability with Microchip audio daughter boards. These boards are fully integrated into PIC32’s powerful software framework, MPLAB Harmony,

which provides a flexible and modular interface to application development a rich set of inter-operable software stacks (TCP-IP, USB), and easy-to-use features. The Curiosity PIC32 MZ EF development board offers expansion capabilities making it an excellent choice for a rapid prototyping board in Connectivity, IOT, and general-purpose applications.

Curiosity PIC32MZ EF double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

PIC32

MCU Memory (KB)

2048

Silicon Vendor

Microchip

Pin count

100

RAM (Bytes)

524288

Used MCU Pins

mikroBUS™ mapper

NC
NC
AN
Reset
RA9
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
UART TX
RPD10
TX
UART RX
RPD15
RX
NC
NC
SCL
NC
NC
SDA
NC
NC
5V
Ground
GND
GND
1

Take a closer look

Click board™ Schematic

EnOcean 3 Click Schematic schematic

Step by step

Project assembly

Curiosity PIC32MZ EF front image hardware assembly

Start by selecting your development board and Click board™. Begin with the Curiosity PIC32 MZ EF as your development board.

Curiosity PIC32MZ EF front image hardware assembly
GNSS2 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
Curiosity PIC32 MZ EF MCU Step hardware assembly
Necto No Display image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Debug Image Necto Step hardware assembly

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 EnOcean 3 Click driver.

Key functions:

  • enocean3_uart_isr - UART Interrupt Routine function.

  • enocean3_response_handler_set - Handler Set function.

  • enocean3_send_packet - Packet Send 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 
 * \brief Enocean3 Click example
 * 
 * # Description
 * This example reads and processes data from EnOcean 3 clicks.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initializes the driver and sets the driver handler.
 * 
 * ## Application Task  
 * Reads the received data and parses it on the USB UART if the response buffer is ready.
 * 
 * ## Additional Function
 * - enocean3_process - The general process of collecting data the module sends.
 * - make_response - Driver handler function which stores data in the response buffer.
 * - log_response - Logs the module response on the USB UART.
 * - log_example - Logs button events on the USB UART.
 * - check_response - Checks if the response is ready and logs button events.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "enocean3.h"
#include "string.h"

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

static enocean3_t enocean3;
static log_t logger;

enocean3_packet_t response;
uint16_t response_size_cnt;
uint8_t rsp_check;

// ------------------------------------------------------- ADDITIONAL FUNCTIONS

void make_response( enocean3_packet_t *rsp, uint16_t *rsp_length_size )
{
    uint16_t rsp_cnt;

    for ( rsp_cnt = 0; rsp_cnt < rsp->data_length; rsp_cnt++ )
    {
        response.data_buff[ rsp_cnt ] = rsp->data_buff[ rsp_cnt ];
    }
    
    response.data_length = rsp->data_length;
    response.opt_length  = rsp->opt_length;
    response.packet_type = rsp->packet_type;
    response_size_cnt    = *rsp_length_size;
}

void log_response( )
{
    uint16_t rsp_cnt;

    if ( rsp_check == 1 )
    {
        log_printf( &logger, "OPCODE + PARAM : ", rsp_check );
        rsp_check = 0;
    }

    for ( rsp_cnt = 0; rsp_cnt < response.data_length; rsp_cnt++ )
    {
        log_printf( &logger, "0x%.2X ", ( uint16_t ) response.data_buff[ rsp_cnt ] );
    }
    
    if ( response_size_cnt == 1 )
    {
        log_printf( &logger, "\r\n" );
        rsp_check = 1;
    }
}

void log_example( )
{
    switch ( response.data_buff[ 1 ] )
    {
        case 0x00:
        {
            log_printf( &logger, "* Button is released *\r\n" );
            break;
        }
        case 0x10 :
        {
            log_printf( &logger, "* Button 1 is pressed *\r\n" );
            break;
        }
        case 0x30 :
        {
            log_printf( &logger, "* Button 3 is pressed *\r\n" );
            break;
        }
        case 0x50 :
        {
            log_printf( &logger, "* Button 5 is pressed *\r\n" );
            break;
        }
        case 0x70 :
        {
            log_printf( &logger, "* Button 7 is pressed *\r\n" );
            break;
        }
        case 0x15 :
        {
            log_printf( &logger, "* Buttons 1 and 5 are pressed *\r\n" );
            break;
        }
        case 0x17 :
        {
            log_printf( &logger, "* Buttons 1 and 7 are pressed *\r\n" );
            break;
        }
        case 0x35 :
        {
            log_printf( &logger, "* Buttons 3 and 5 are pressed *\r\n" );
            break;
        }
        case 0x37 :
        {
            log_printf( &logger, "* Buttons 3 and 7 are pressed *\r\n" );
            break;
        }
        default :
        {
            break;
        }
    }
}   

void check_response( )
{
    uint8_t response_ready;

    response_ready = enocean3_response_ready( &enocean3 );

    if ( response_ready == ENOCEAN3_RESPONSE_READY )
    {
        log_example( );
    }
}

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    enocean3_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.

    enocean3_cfg_setup( &cfg );
    ENOCEAN3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    enocean3_init( &enocean3, &cfg );

    Delay_ms ( 500 );

    enocean3_response_handler_set( &enocean3, &make_response );
    rsp_check = 1;
}

void application_task ( void )
{
    enocean3_uart_isr ( &enocean3 );
    check_response ( );
    Delay_1ms( );
}

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
/*!
 * \file 
 * \brief Enocean3 Click example
 * 
 * # Description
 * This example reads and processes data from EnOcean 3 clicks.
 *
 * The demo application is composed of two sections :
 * 
 * ## Application Init 
 * Initializes the driver and sets the driver handler.
 * 
 * ## Application Task  
 * Reads the received data and parses it on the USB UART if the response buffer is ready.
 * 
 * ## Additional Function
 * - enocean3_process - The general process of collecting data the module sends.
 * - make_response - Driver handler function which stores data in the response buffer.
 * - log_response - Logs the module response on the USB UART.
 * - log_example - Logs button events on the USB UART.
 * - check_response - Checks if the response is ready and logs button events.
 * 
 * \author MikroE Team
 *
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "log.h"
#include "enocean3.h"
#include "string.h"

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

static enocean3_t enocean3;
static log_t logger;

enocean3_packet_t response;
uint16_t response_size_cnt;
uint8_t rsp_check;

// ------------------------------------------------------- ADDITIONAL FUNCTIONS

void make_response( enocean3_packet_t *rsp, uint16_t *rsp_length_size )
{
    uint16_t rsp_cnt;

    for ( rsp_cnt = 0; rsp_cnt < rsp->data_length; rsp_cnt++ )
    {
        response.data_buff[ rsp_cnt ] = rsp->data_buff[ rsp_cnt ];
    }
    
    response.data_length = rsp->data_length;
    response.opt_length  = rsp->opt_length;
    response.packet_type = rsp->packet_type;
    response_size_cnt    = *rsp_length_size;
}

void log_response( )
{
    uint16_t rsp_cnt;

    if ( rsp_check == 1 )
    {
        log_printf( &logger, "OPCODE + PARAM : ", rsp_check );
        rsp_check = 0;
    }

    for ( rsp_cnt = 0; rsp_cnt < response.data_length; rsp_cnt++ )
    {
        log_printf( &logger, "0x%.2X ", ( uint16_t ) response.data_buff[ rsp_cnt ] );
    }
    
    if ( response_size_cnt == 1 )
    {
        log_printf( &logger, "\r\n" );
        rsp_check = 1;
    }
}

void log_example( )
{
    switch ( response.data_buff[ 1 ] )
    {
        case 0x00:
        {
            log_printf( &logger, "* Button is released *\r\n" );
            break;
        }
        case 0x10 :
        {
            log_printf( &logger, "* Button 1 is pressed *\r\n" );
            break;
        }
        case 0x30 :
        {
            log_printf( &logger, "* Button 3 is pressed *\r\n" );
            break;
        }
        case 0x50 :
        {
            log_printf( &logger, "* Button 5 is pressed *\r\n" );
            break;
        }
        case 0x70 :
        {
            log_printf( &logger, "* Button 7 is pressed *\r\n" );
            break;
        }
        case 0x15 :
        {
            log_printf( &logger, "* Buttons 1 and 5 are pressed *\r\n" );
            break;
        }
        case 0x17 :
        {
            log_printf( &logger, "* Buttons 1 and 7 are pressed *\r\n" );
            break;
        }
        case 0x35 :
        {
            log_printf( &logger, "* Buttons 3 and 5 are pressed *\r\n" );
            break;
        }
        case 0x37 :
        {
            log_printf( &logger, "* Buttons 3 and 7 are pressed *\r\n" );
            break;
        }
        default :
        {
            break;
        }
    }
}   

void check_response( )
{
    uint8_t response_ready;

    response_ready = enocean3_response_ready( &enocean3 );

    if ( response_ready == ENOCEAN3_RESPONSE_READY )
    {
        log_example( );
    }
}

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    enocean3_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.

    enocean3_cfg_setup( &cfg );
    ENOCEAN3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    enocean3_init( &enocean3, &cfg );

    Delay_ms ( 500 );

    enocean3_response_handler_set( &enocean3, &make_response );
    rsp_check = 1;
}

void application_task ( void )
{
    enocean3_uart_isr ( &enocean3 );
    check_response ( );
    Delay_1ms( );
}

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

Additional Support

Resources

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