Intermediate
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BLE 6 Click with UNI-DS v8

Published Nov 08, 2023

Click board™

BLE 6 Click

Development board

UNI-DS v8

Compiler

NECTO Studio

MCU

STM32F100ZE

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Hardware Overview

How does it work?

BLE 6 Click is based on the BlueNRG-M2, a Bluetooth low energy application processor module from STMicroelectronics compliant with Bluetooth® v5.0. The BlueNRG-M2 module has been designed around the ST BlueNRG-2 SoC where its Cortex-M0 core can execute both Bluetooth protocols and customer application. Optimized memory architecture includes 256 kB of Flash memory and 24 kB of ultra-low-leakage RAM (with full data retention). The BLUENRG-M2 module has both 32 MHz and 32 kHz crystal oscillators implemented. It has been designed to leverage the BlueNRG-2 integrated DC-DC step-down converter in order to achieve the best power consumption in active mode. It also embeds a high-efficiency chip antenna. It can be configured

to support both application processor (host-less) and network processor (hosted) modes. The BlueNRG-M2 module provides a complete RF application platform in a tiny form factor (11.5 x 13.5 x 2.0 mm) and being a certified solution optimizes the time to market of the final applications. The BlueNRG-M2 module allows applications to meet the tight advisable peak current requirements imposed with the use of standard coin cell batteries. There are two possible software architectures: Host-less mode (application processor - customer application runs on the BlueNRG-M2 module) and Hosted mode (network processor - the module is configured as network module controlled by an external host connected via SPI or UART). The module comes with a

pre-programmed UART bootloader. The BlueNRG-M2 embeds the ARM serial wire debug (SWD) port routed to the SWD header connector. It is two pin (clock and single bi-directional data) debug interface, providing all the debug functionality plus real-time access to system memory without halting the processor or requiring any target resident code. Since the SPI peripheral can be used either as master or slave, the onboard SMD jumpers labeled as MODE SEL allow switching between the two. This Click Board™ is designed to be operated only with a 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.

BLE 6 hardware overview image

Features overview

Development board

UNI-DS v8 is a development board specially designed for the needs of rapid development of embedded applications. It supports a wide range of microcontrollers, such as different STM32, Kinetis, TIVA, CEC, MSP, PIC, dsPIC, PIC32, and AVR MCUs regardless of their number of pins, and a broad set of unique functions, such as the first-ever embedded debugger/programmer over WiFi. 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. Thanks to innovative manufacturing technology, UNI-DS v8 provides a fluid and immersive working experience, allowing access anywhere and under any

circumstances at any time. Each part of the UNI-DS v8 development board contains the components necessary for the most efficient operation of the same board. An advanced integrated CODEGRIP programmer/debugger module offers many valuable programming/debugging options, including support for JTAG, SWD, and SWO Trace (Single Wire Output)), and seamless integration with the Mikroe software environment. Besides, it also includes a clean and regulated power supply module for the development board. It can use a wide range of external power sources, including a battery, an external 12V power supply, and a power source via the USB Type-C (USB-C) connector. Communication options such as USB-UART, USB

HOST/DEVICE, CAN (on the MCU card, if supported), and Ethernet is also included. In addition, it also has the well-established mikroBUS™ standard, a standardized socket for the MCU card (SiBRAIN standard), and two display options for the TFT board line of products and character-based LCD. UNI-DS v8 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.

UNI-DS v8 horizontal image

Microcontroller Overview

MCU Card / MCU

default

Type

8th Generation

Architecture

ARM Cortex-M3

MCU Memory (KB)

512

Silicon Vendor

STMicroelectronics

Pin count

144

RAM (Bytes)

32768

Used MCU Pins

mikroBUS™ mapper

Analog Output
PC0
AN
Reset
PE13
RST
SPI Chip Select
PD11
CS
SPI Clock
PA5
SCK
SPI Data OUT
PA6
MISO
SPI Data IN
PA7
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
Boot
PD12
PWM
NC
NC
INT
UART TX
PB6
TX
UART RX
PB7
RX
I2C Clock
PB8
SCL
I2C Data
PB9
SDA
NC
NC
5V
Ground
GND
GND
1

Take a closer look

Schematic

BLE 6 Click Schematic schematic

Step by step

Project assembly

Fusion for PIC v8 front image hardware assembly

Start by selecting your development board and Click board™. Begin with the UNI-DS v8 as your development board.

Fusion for PIC v8 front image hardware assembly
Buck 22 Click front image hardware assembly
SiBRAIN for PIC32MZ1024EFK144 front image hardware assembly
v8 SiBRAIN MB 1 - upright/background hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
NECTO Compiler Selection Step Image hardware assembly
NECTO Output Selection Step Image hardware assembly
Necto image step 6 hardware assembly
Necto image step 7 hardware assembly
Necto image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Necto PreFlash Image hardware 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

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

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

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

Software Support

Library Description

This library contains API for BLE 6 Click driver.

Key functions:

  • ble6_set_response_handler - Set response handlers function.

  • ble6_set_handlers - Set handlers function.

  • ble6_parser_rsp - Response parser 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 BLE 6 Click Example.
 *
 * # Description
 * This example reads and processes data from BLE 6 clicks.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initialization driver enables - UART, sets handlers initialize and enable UART interrupt, reset
 * and configures BLE module, initialize BLE Server Profile ( Services and Characteristics ).
 *
 * ## Application Task
 * The app starts by checking the system ready flag 
 * and returns the Bluetooth device address. After that,
 * the chain of commands creates Primary Server Profiles:
 * Device Information, Generic Access and Custom Service to Start Advertising.
 * For transmit messages, we use Generic Access Primary Service
 * with Write permissions of the characteristic Element.
 * In this example, transmitting message is limited to a maximum of 11 characters.
 * Results are being sent to the Usart Terminal where you can track their changes.
 *
 * ## Additional Function
 * - void ble6_module_init ( void );
 * - void ble6_event_handler ( void );
 * - void ble6_display_log ( void );
 * - void ble6_aci_gap_init ( void );
 * - void ble6_le_meta_event ( void );
 * - void ble6_handler ( void );
 * - void ble6_response_handler ( void );
 * - void ble6_local_version_info ( void );
 *
 * @note
 * For communication with BLE 6 click use the android application on the link:
 * https://play.google.com/store/apps/details?id=com.macdom.ble.blescanner
 *
 * @author Stefan Ilic
 *
 */

#include "board.h"
#include "log.h"
#include "ble6.h"

#define PROCESS_BUFFER_SIZE 256

static ble6_t ble6;
static log_t logger;
static ble6_rsp_t rsp_data;
static ble6_le_meta_event_t le_meta_event_data;
static ble6_rx_rsp_t ble6_rx_rsp;
uint8_t app_buf [ PROCESS_BUFFER_SIZE ];
uint8_t rx_response [ PROCESS_BUFFER_SIZE ];
uint8_t device_connected_flag = 0;

uint8_t hci_le_meta_event_connect [ 5 ] = { 0x04, 0x3E, 0x13, 0x01, 0x00 };
uint8_t hci_le_serverwrite_event [ 1 ] = { 0x04 };
uint8_t hci_read_local_version_information [ 4 ] = { 0x01, 0x01, 0x10, 0x00 };
uint8_t hci_info_confirm [ 4 ] = { 0xFF, 0x01, 0x00, 0x00 };
uint8_t aci_hal_get_fw_version [ 4 ] = { 0x01, 0x01, 0xFC, 0x00 };
uint8_t hci_reset [ 4 ] = { 0x01, 0x03, 0x0C, 0x00 };
uint8_t aci_hal_write_config_data [ 12 ] = 
{ 
    0x01, 0x0C, 0xFC, 0x08, 0x00, 0x06, 0x03, 0xEE, 0x00, 0xE1, 0x80, 0x02 
};
uint8_t aci_hal_set_tx_power_level [ 6 ] = { 0x01, 0x0F, 0xFC, 0x02, 0x01, 0x04 };
uint8_t aci_gatt_init [ 4 ] = { 0x01, 0x01, 0xFD, 0x00 };
uint8_t aci_gap_init [ 7 ] = { 0x01, 0x8A, 0xFC, 0x03, 0x0F, 0x00, 0x0B };
uint8_t aci_gatt_update_value [ 21 ] = 
{ 
    0x01, 0x06, 0xFD, 0x11, 0x05, 0x00, 0x06, 0x00, 0x00, 0x0B,
    'B', 'L', 'E', ' ', '6', ' ', 'c', 'l', 'i', 'c', 'k' 
};
uint8_t hci_le_set_scan_response_data [ 36 ] = 
{ 
    0x01, 0x09, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 
};
uint8_t aci_gap_set_discoverable [ 30 ] =
{ 
    0x01, 0x83, 0xFC, 0x19, 0x00, 0x00, 0x08, 0x00, 0x09, 0x00, 0x00, 0x0C, 0x09,
    'B', 'L', 'E', ' ', '6', ' ', 'c', 'l', 'i', 'c', 'k', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};

/**
 * @brief BLE 6 module initialisation.
 * @details This function is used for initialisation of BLE 6 Click.
 */
void ble6_module_init ( void );

/**
 * @brief BLE 6 event handler.
 * @details This function is used for checking conncection of BLE 6 Click.
 */
void ble6_event_handler ( void );

/**
 * @brief BLE 6 display log.
 * @details This function is used for displaying log of BLE 6 Click.
 */
void ble6_display_log ( void );

/**
 * @brief BLE 6 aci gap initialisation.
 * @details This function is used for aci gap initialisation of BLE 6 Click.
 */
void ble6_aci_gap_init ( void );

/**
 * @brief BLE 6 le meta event.
 * @details This function is used for low energy events of BLE 6 Click.
 */
void ble6_le_meta_event ( void );

/**
 * @brief BLE 6 handler.
 * @details This function is used for getting data of BLE 6 Click.
 */
void ble6_handler ( void );

/**
 * @brief BLE 6 response handler.
 * @details This function is used for displaying data response of BLE 6 Click.
 */
void ble6_response_handler ( void );

/**
 * @brief BLE 6 local version info.
 * @details This function is used for displaying local version info of BLE 6 Click.
 */
void ble6_local_version_info ( void );

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    ble6_cfg_t ble6_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.
    ble6_cfg_setup( &ble6_cfg );
    BLE6_MAP_MIKROBUS( ble6_cfg, MIKROBUS_1 );
    err_t init_flag  = ble6_init( &ble6, &ble6_cfg );
    if ( UART_ERROR == init_flag ) 
    {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }
    Delay_ms( 1000 );
    ble6_power_on( &ble6, BLE6_MODULE_POWER_ON );
    Delay_ms( 1000 );
    ble6_module_init( );
    Delay_ms( 100 );
    log_printf( &logger, "-> Local Version Information: \r\n" );
    ble6_send_command( &ble6, &hci_read_local_version_information[ 0 ], 4 );
    Delay_ms( 100 );
    ble6_handler( );
    ble6_display_log( );
    ble6_local_version_info( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> ACI GAP Update Value: \r\n" );
    ble6_send_command( &ble6, &aci_gatt_update_value[ 0 ], 21 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> HCI Set Scan. Response Data: \r\n" );
    ble6_send_command( &ble6, &hci_le_set_scan_response_data[ 0 ], 36 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> ACI GAP Set Discoverable: \r\n" );
    ble6_send_command( &ble6, &aci_gap_set_discoverable[ 0 ], 30 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );
    
    log_info( &logger, " Application Task " );
}

void application_task ( void ) 
{
    ble6_event_handler( );
    
    while ( device_connected_flag ) 
    {
        int32_t cnt = ble6_generic_read( &ble6, rx_response, PROCESS_BUFFER_SIZE );
        Delay_ms( 100 );
        if ( ( ble6_strncmp( rx_response, hci_le_serverwrite_event, 1 ) == 0 ) && ( cnt > 13 ) ) 
        {
            ble6_response_handler( );
        }
    }
}

void main ( void ) 
{
    application_init( );

    for ( ; ; ) 
    {
        application_task( );
    }
}

void ble6_handler ( void ) 
{
    uint16_t tmp;
    uint8_t cnt;
    ble6_generic_read( &ble6, rx_response, PROCESS_BUFFER_SIZE );
    
    tmp = rx_response[ 5 ];
    tmp <<= 8;
    tmp |= rx_response[ 4 ];

    rsp_data.event_code = rx_response[ 1 ];
    rsp_data.length = rx_response[ 2 ];
    rsp_data.cmd_opcode = tmp;
    rsp_data.status = rx_response[ 6 ];

    for ( cnt = 0; cnt < rsp_data.length - 4; cnt++ ) 
    {
        rsp_data.payload[ cnt ] = rx_response[ cnt + 7 ];
    }
    
    memset( &rx_response[ 0 ], 0, PROCESS_BUFFER_SIZE );
}

void ble6_connect_handler ( void )
{
    uint8_t cr_len;
    uint16_t tmp;
    uint8_t cnt;
    ble6_generic_read( &ble6, rx_response, PROCESS_BUFFER_SIZE );
    Delay_ms( 100 );
    
    cr_len = 0;

    log_printf( &logger, "\r\n" );

    le_meta_event_data.le_event_code = rx_response[ 1 ];
    le_meta_event_data.le_length = rx_response[ 2 ];
    le_meta_event_data.le_subevent_code = rx_response[ 3 ];
    le_meta_event_data.le_status = rx_response[ 4 ];

    tmp = rx_response[ 6 ];
    tmp <<= 8;
    tmp |= rx_response[ 5 ];

    if ( le_meta_event_data.le_subevent_code == 0x01 )
    {
        cr_len = 8;
    }

    le_meta_event_data.le_conn_hdl = tmp;
    le_meta_event_data.le_role = rx_response[ 7 ];
    le_meta_event_data.le_peer_addr_type = rx_response[ 8 ];

    for ( cnt = 0; cnt < 6; cnt++ )
    {
        le_meta_event_data.le_peer_addr[ cnt ] = rx_response[ cnt + 9 ];
    }

    tmp = rx_response[ 16 - cr_len ];
    tmp <<= 8;
    tmp |= rx_response[ 15 - cr_len ];

    le_meta_event_data.le_conn_interval = tmp;

    tmp = rx_response[ 18 - cr_len ];
    tmp <<= 8;
    tmp |= rx_response[ 17 - cr_len ];

    le_meta_event_data.le_conn_latency = tmp;

    tmp = rx_response[ 20 - cr_len ];
    tmp <<= 8;
    tmp |= rx_response[ 19 - cr_len ];

    le_meta_event_data.le_sup_timeout = tmp;

    le_meta_event_data.le_master_clk_accuracy = rx_response[ 21 ];

    memset( rx_response, 0, PROCESS_BUFFER_SIZE );
}

void ble6_response_handler ( void )
{
    uint16_t attr_pos;
    uint16_t tmp;    
    ble6_rx_rsp.event_code = rx_response[ 1 ];

    log_printf( &logger, " Event Code            : 0x%.4X\r\n", ( uint16_t ) ble6_rx_rsp.event_code );

    ble6_rx_rsp.length = rx_response[ 2 ];
    log_printf( &logger, " Length                : 0x%.4X\r\n", ( uint16_t ) ble6_rx_rsp.length );

    tmp = rx_response[ 4 ];
    tmp <<= 8;
    tmp |= rx_response[ 3 ];

    ble6_rx_rsp.e_code = tmp;
    log_printf( &logger, " Ecode                 : 0x%.4X\r\n", ( uint16_t ) ble6_rx_rsp.e_code );

    tmp = rx_response[ 6 ];
    tmp <<= 8;
    tmp |= rx_response[ 5 ];

    ble6_rx_rsp.conn_hdl = tmp;
    log_printf( &logger, " Connection Handle     : 0x%.4X\r\n", ( uint16_t ) ble6_rx_rsp.conn_hdl );

    tmp = rx_response[ 8 ];
    tmp <<= 8;
    tmp |= rx_response[ 7 ];

    ble6_rx_rsp.attr_hdl = tmp;
    log_printf( &logger, " Attr. Handle          : 0x%.2X\r\n", ( uint16_t ) ble6_rx_rsp.attr_hdl );

    tmp = rx_response[ 10 ];
    tmp <<= 8;
    tmp |= rx_response[ 9 ];

    ble6_rx_rsp.offset = tmp;
    log_printf( &logger, " Offset                : 0x%.2X\r\n", ( uint16_t ) ble6_rx_rsp.offset );

    tmp = rx_response[ 12 ];
    tmp <<= 8;
    tmp |= rx_response[ 11 ];

    ble6_rx_rsp.attr_data_len = tmp;
    log_printf( &logger, " Attr. Data Length     : 0x%.2X\r\n", ( uint16_t ) ble6_rx_rsp.attr_data_len );

    for ( attr_pos = 0; attr_pos < ble6_rx_rsp.attr_data_len; attr_pos++ )
    {
        ble6_rx_rsp.attr_data[ attr_pos ] = rx_response[ attr_pos + 13 ];
        app_buf[ attr_pos ] = ble6_rx_rsp.attr_data[ attr_pos ];
    }

    log_printf( &logger, "- - - - - - - - - - - - - - - - \r\n" );
    log_printf( &logger, " <--- RX DATA : %s \r\n", app_buf );
    log_printf( &logger, "--------------------------------\r\n" );
    memset( app_buf, 0, PROCESS_BUFFER_SIZE );
    memset( rx_response, 0, PROCESS_BUFFER_SIZE );
    memset( ble6_rx_rsp.attr_data, 0, PROCESS_BUFFER_SIZE );
}

void ble6_local_version_info ( void )
{
    uint16_t tmp;
    log_printf( &logger, "- - - - - - - - - - - - - - - - \r\n" );
    log_printf( &logger, " Local Version Information \r\n" );
    log_printf( &logger, "  HCI Version     : 0x%.4X\r\n", ( uint16_t ) rsp_data.payload[ 0 ] );

    tmp = rsp_data.payload[ 2 ];
    tmp <<= 8;
    tmp |= rsp_data.payload[ 1 ];

    log_printf( &logger, "  HCI Revision    : 0x%.2X\r\n", ( uint16_t ) tmp );

    log_printf( &logger, "  LMP/PAL Version : 0x%.2X\r\n", ( uint16_t ) rsp_data.payload[ 3 ] );

    tmp = rsp_data.payload[ 5 ];
    tmp <<= 8;
    tmp |= rsp_data.payload[ 4 ];

    log_printf( &logger, "  Manufacture Name: 0x%.2X\r\n", ( uint16_t ) tmp );

    tmp = rsp_data.payload[ 7 ];
    tmp <<= 8;
    tmp |= rsp_data.payload[ 6 ];

    log_printf( &logger, "  LMP/PAL Sub Ver : 0x%.2X\r\n", ( uint16_t ) tmp );

    memset( rsp_data.payload, 0, PROCESS_BUFFER_SIZE );
}

void ble6_le_meta_event ( void )
{
    uint8_t cnt;
    log_printf( &logger, "    CONNECT LE META EVENT    \r\n" );
    log_printf( &logger, " Event Code            : 0x%.4X\r\n", 
                ( uint16_t ) le_meta_event_data.le_event_code );

    log_printf( &logger, " Length                : 0x%.2X\r\n", 
                ( uint16_t ) le_meta_event_data.le_length );
    
    log_printf( &logger, " Subevent Code         : 0x%.2X\r\n", 
                ( uint16_t ) le_meta_event_data.le_subevent_code );

    log_printf( &logger, " Status                : " );
    if ( le_meta_event_data.le_status == 0x00 )
    {
        log_printf( &logger, "OK\r\n" );
    }
    else
    {
        log_printf( &logger, "ERROR 0x%.4X\r\n", ( uint16_t ) le_meta_event_data.le_status );
    }

    log_printf( &logger, " Connection Handle     : 0x%.4X\r\n", 
                ( uint16_t ) le_meta_event_data.le_conn_hdl );

    if ( le_meta_event_data.le_subevent_code == 0x01 )
    {
        log_printf( &logger, " Role                  : " );
        if ( le_meta_event_data.le_role == 0x00 )
        {
            log_printf( &logger, " Master\r\n" );
        }
        else
        {
            log_printf( &logger, "Slave\r\n" );
        }

        log_printf( &logger, " Peer Address Type     : " );
        if ( le_meta_event_data.le_role == 0x00 )
        {
            log_printf( &logger, "Specific\r\n" );
        }
        else
        {
            log_printf( &logger, "Random\r\n" );
        }
        
        log_printf( &logger, " Peer Address          : " );
        for ( cnt = 0; cnt < 5; cnt++ )
        {
            log_printf( &logger, "%.2X:", ( uint16_t ) le_meta_event_data.le_peer_addr[ cnt ] );
        }
        log_printf( &logger, "%.2X\r\n", ( uint16_t ) le_meta_event_data.le_peer_addr[ 5 ] );
    }
    
    log_printf( &logger, " Connection Interval   : 0x%.4X\r\n", 
                ( uint16_t ) le_meta_event_data.le_conn_interval );
    
    log_printf( &logger, " Connection Latency    : 0x%.4X\r\n", 
                ( uint16_t ) le_meta_event_data.le_conn_latency );
    
    log_printf( &logger, " Supervision Timeout   : 0x%.4X\r\n", 
                ( uint16_t ) le_meta_event_data.le_sup_timeout );
    
    if ( le_meta_event_data.le_subevent_code == 0x01 )
    {
        log_printf( &logger, " Master Clock Accurancy: 0x%.2X\r\n", 
                    ( uint16_t ) le_meta_event_data.le_master_clk_accuracy );
    }
}

void ble6_aci_gap_init ( void )
{
    uint16_t tmp;
    log_printf( &logger, "- - - - - - - - - - - - - - - - \r\n" );
    log_printf( &logger, "    ACI GAP Initialization   \r\n" );

    tmp = rsp_data.payload[ 1 ];
    tmp <<= 8;
    tmp |= rsp_data.payload[ 0 ];

    log_printf( &logger, "  Service Handle    : 0x%.2X\r\n", ( uint16_t ) tmp );
    
    tmp = rsp_data.payload[ 3 ];
    tmp <<= 8;
    tmp |= rsp_data.payload[ 2 ];

    log_printf( &logger, "  Dev Name Char Hdl.: 0x%.2X\r\n", ( uint16_t ) tmp );
    
    tmp = rsp_data.payload[ 5 ];
    tmp <<= 8;
    tmp |= rsp_data.payload[ 4 ];

    log_printf( &logger, "  Appearance Handle : 0x%.2X\r\n", ( uint16_t ) tmp );

    memset( rsp_data.payload, 0, PROCESS_BUFFER_SIZE );
}

void ble6_display_log ( void )
{
    log_printf( &logger, "<- New Response:\r\n" );

    log_printf( &logger, "    Opcode: 0x%.4X\r\n", ( uint16_t ) rsp_data.cmd_opcode );

    log_printf( &logger, "    Length: 0x%.2X\r\n", ( uint16_t ) rsp_data.length );

    log_printf( &logger, "    Status: " );

    if ( rsp_data.status == 0x00 )
    {
        log_printf( &logger, "OK\r\n" );
    }
    else
    {
        log_printf( &logger, "0x%.4X\r\n", ( uint16_t ) rsp_data.status );
    }
}

void ble6_event_handler ( void )
{
    ble6_generic_read( &ble6, rx_response, PROCESS_BUFFER_SIZE );
    Delay_ms( 100 );
    if ( ble6_strncmp( rx_response, hci_le_meta_event_connect, 5 )
         == 0 )
    {
        log_printf( &logger, "--------------------------------\r\n" );
        log_printf( &logger, " ***    Device connected    *** \r\n" );
        log_printf( &logger, "--------------------------------\r\n" );
        ble6_connect_handler( );
        ble6_le_meta_event( );
        log_printf( &logger, "--------------------------------\r\n" );
        Delay_ms( 100 );

        device_connected_flag = 1;
    }
}

void ble6_module_init ( void )
{
    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "        *** SW Reset ***        \r\n" );
    ble6_send_command( &ble6, hci_info_confirm, 4 );
    Delay_ms( 10 );
    memset( rx_response, 0, 255 );
    Delay_ms( 100 );
    ble6_generic_read( &ble6, rx_response, PROCESS_BUFFER_SIZE );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> Firmware Details: \r\n" );
    ble6_send_command( &ble6, aci_hal_get_fw_version, 4 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> HCI Reset: \r\n" );
    ble6_send_command( &ble6, hci_reset, 4 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> ACI HAL Write Configuration: \r\n" );
    ble6_send_command( &ble6, aci_hal_write_config_data, 12 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> ACI Set Tx Power Level: \r\n" );
    ble6_send_command( &ble6, aci_hal_set_tx_power_level, 6 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> ACI GATT Init.: \r\n" );
    ble6_send_command( &ble6, aci_gatt_init, 4 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log( );
    Delay_ms( 100 );

    log_printf( &logger, "--------------------------------\r\n" );
    log_printf( &logger, "-> ACI GAP Init.: \r\n" );
    ble6_send_command( &ble6, aci_gap_init, 7 );
    Delay_ms( 10 );
    ble6_handler( );
    ble6_display_log ();
    ble6_aci_gap_init( );
    Delay_ms( 100 );
}

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

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