使用BGM220P和STM32L073RZ解锁蓝牙的魔力

我们的蓝牙奇迹！

BLE 9 Click with Nucleo-64 with STM32L073RZ MCU

已发布 6月 24, 2024

点击板

BLE 9 Click

开发板

Nucleo-64 with STM32L073RZ MCU

编译器

NECTO Studio

微控制器单元

STM32L073RZ

体验我们先进的蓝牙解决方案，轻松连接您的设备，消除线缆的烦恼，发现无线便利的真正本质。

硬件概览

它是如何工作的？

BLE 9 Click基于BGM220P，这是一种来自Silicon Labs的射频性能蓝牙低功耗解决方案，为任何嵌入式应用提供BT/BLE连接。它支持蓝牙5.2、方向查找和蓝牙Mesh低功耗节点协议，提供业界领先的准确性。具有全球监管认证和完全可升级的软件堆栈，作为高级开发和调试工具。BGM220P模块结合了EFR32BG22无线系统芯片（SoC）、所需的去耦电容和电感、38.4 MHz和32.768 kHz晶体、RF匹配电路和集成的陶瓷板载芯片天线。BGM220P模块内的EFR32BG22 SoC包含一个Arm Cortex-M33处理核心，最多32Kb的RAM，最多512kB的闪存，以及一个2.4GHz射频收发器，提供高达8dB的输出功率。此Click板™提供增强的性

能、安全性和可靠性，以支持在蓝牙网络上运行的物联网产品。BLE 9 Click使用UART接口作为默认通信协议与MCU通信，用户也可以选择使用其他接口，如SPI和I2C，若希望自行配置模块并编写库。这款Click板™还可以在没有外部主处理器的独立SoC配置中使用。除了这些协议引脚外，此Click板™还具有标记为CTS和RTS的串行UART连接，分别路由到mikroBUS™插座的CS和INT引脚，以及提供并路由到mikroBUS™插座的RST引脚的复位引脚。一个额外的GPIO引脚，标记为IO，路由到mikroBUS™插座的PWM引脚，留给用户根据需要进行配置。板载跳线选择CS mikroBUS™引脚在SPI或UART通信引脚之间的功能。通过

将标记为CTS或CS的SMD跳线置于适当位置进行选择。BLE 9 Click底部有一个额外的头部，Mini Simplicity Debug Connector，完全支持调试和编程功能。通过此头部，用户可以使用串行线调试接口进行编程和调试，使用SWCLK和SWDIO引脚，虚拟UART COM端口和基于虚拟UART-SWD的接口也可以通过SWD接口（SWDIO、SWCLK和SWO）使用。此Click板™只能在3.3V逻辑电压水平下运行。在使用具有不同逻辑电平的MCU之前，必须进行适当的逻辑电压电平转换。此外，它还配备了一个包含函数和示例代码的库，可用作进一步开发的参考。

功能概述

开发板

Nucleo-64搭载STM32L073RZ MCU提供了一个经济实惠且灵活的平台，供开发人员探索新的想法并原型化其设计。该板利用了STM32微控制器的多功能性，使用户能够为其项目选择性能和功耗之间的最佳平衡。它采用LQFP64封装的STM32微控制器，并包括一些必要的组件，例如用户LED，可以同时作为ARDUINO®信号使用，以及用户和复位按钮，以及用于精准定时操作的32.768kHz晶体振荡器。设计时考虑了扩展性和灵活性，Nucleo-64板具有ARDUINO®

Uno V3扩展连接器和ST morpho扩展引脚标头，为全面项目集成提供了对STM32 I/O的完全访问权限。电源选项具有适应性，支持ST-LINK USB VBUS或外部电源，确保在各种开发环境中的适应性。该板还配备了一个内置的ST-LINK调试器/编程器，具有USB重新枚举功能，简化了编程和调试过程。此外，该板还设计了外部SMPS，以实现有效的Vcore逻辑供电，支持USB设备全速或USB SNK/UFP全速，以及内置的加密功能，增强了项目的功耗效率和安全性。通过专用

连接器提供了额外的连接性，用于外部SMPS实验、ST-LINK的USB连接器和MIPI®调试连接器，扩展了硬件接口和实验的可能性。开发人员将通过STM32Cube MCU软件包中全面的免费软件库和示例得到广泛的支持。这与与各种集成开发环境（IDE）的兼容性相结合，包括IAR Embedded Workbench®、MDK-ARM和STM32CubeIDE，确保了平稳高效的开发体验，使用户能够充分发挥Nucleo-64板在其项目中的功能。

Nucleo 64 with STM32L073RZ MCU double side image

微控制器概述

MCU卡片 / MCU

建筑

ARM Cortex-M0

MCU 内存 (KB)

192

硅供应商

STMicroelectronics

引脚数

RAM (字节)

20480

你完善了我！

配件

Click Shield for Nucleo-64 配备了两个专有的 mikroBUS™ 插座，使得所有的 Click board™ 设备都可以轻松地与 STM32 Nucleo-64 开发板连接。这样，Mikroe 允许其用户从不断增长的 Click boards™ 范围中添加任何功能，如 WiFi、GSM、GPS、蓝牙、ZigBee、环境传感器、LED、语音识别、电机控制、运动传感器等。您可以使用超过 1537 个 Click boards™，这些 Click boards™ 可以堆叠和集成。STM32 Nucleo-64 开发板基于 64 引脚封装的微控制器，采用 32 位 MCU，配备 ARM Cortex M4 处理器，运行速度为 84MHz，具有 512Kb Flash 和 96KB SRAM，分为两个区域，顶部区域代表 ST-Link/V2 调试器和编程器，而底部区域是一个实际的开发板。通过 USB 连接方便地控制和供电这些板子，以便直接对 Nucleo-64 开发板进行编程和高效调试，其中还需要额外的 USB 线连接到板子上的 USB 迷你接口。大多数 STM32 微控制器引脚都连接到了板子左右边缘的 IO 引脚上，然后连接到两个现有的 mikroBUS™ 插座上。该 Click Shield 还有几个开关，用于选择 mikroBUS™ 插座上模拟信号的逻辑电平和 mikroBUS™ 插座本身的逻辑电压电平。此外，用户还可以通过现有的双向电平转换器，使用任何 Click board™，无论 Click board™ 是否在 3.3V 或 5V 逻辑电压电平下运行。一旦将 STM32 Nucleo-64 开发板与我们的 Click Shield for Nucleo-64 连接，您就可以访问数百个工作于 3.3V 或 5V 逻辑电压电平的 Click boards™。

Click Shield for Nucleo-64 accessories 1 image

使用的MCU引脚

mikroBUS™映射器

Reset

PC12

RST

UART CTS / SPI Chip Select

PB12

SPI Clock

PB3

SCK

SPI Data OUT

PB4

MISO

SPI Data IN

PB5

MOSI

Power Supply

3.3V

Ground

GND

User-Configurable I/0

PC8

PWM

UART RTS

PC14

INT

UART TX

PA2

UART RX

PA3

I2C Clock

PB8

SCL

I2C Data

PB9

SDA

Ground

GND

“仔细看看！”

Click board™ 原理图

一步一步来

项目组装

Click Shield for Nucleo-64 front image hardware assembly

从选择您的开发板和Click板™开始。以Nucleo-64 with STM32L073RZ MCU作为您的开发板开始。

Nucleo 64 with STM32F401RE MCU front image hardware assembly

EEPROM 13 Click front image hardware assembly

Nucleo-64 with STM32XXX MCU MB 1 Mini B Conn - upright/background hardware assembly

Clicker 4 for STM32F4 HA MCU Step hardware assembly

Necto No Display image step 8 hardware assembly

Debug Image Necto Step hardware assembly

实时跟踪您的结果

应用程序输出

1. 应用程序输出 - 在调试模式下，“应用程序输出”窗口支持实时数据监控，直接提供执行结果的可视化。请按照提供的教程正确配置环境，以确保数据正确显示。

2. UART 终端 - 使用UART Terminal通过USB to UART converter监视数据传输，实现Click board™与开发系统之间的直接通信。请根据项目需求配置波特率和其他串行设置，以确保正常运行。有关分步设置说明，请参考提供的教程。

3. Plot 输出 - Plot功能提供了一种强大的方式来可视化实时传感器数据，使趋势分析、调试和多个数据点的对比变得更加直观。要正确设置，请按照提供的教程，其中包含使用Plot功能显示Click board™读数的分步示例。在代码中使用Plot功能时，请使用以下函数：plot(insert_graph_name, variable_name);。这是一个通用格式，用户需要将“insert_graph_name”替换为实际图表名称，并将“variable_name”替换为要显示的参数。

软件支持

库描述

该库包含 BLE 9 Click 驱动程序的 API。

关键功能:

ble9_adv_create_id - 此功能创建适当的ID。
ble9_adv_start - 此功能启动广播。

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 main.c
 * @brief BLE 9 Click example
 *
 * # Description
 * This example demonstrates the use of BLE 9 click board by processing
 * the incoming data and displaying them on the USB UART.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver and performs the click default configuration.
 *
 * ## Application Task
 * Reads and processes all incoming data and displays them on the USB UART.
 *
 * ## Additional Function
 * - static void ble9_clear_app_buf ( void )
 * - static err_t ble9_process ( ble9_t *ctx )
 * 
 * <pre>
 * For more information on the chip itself and the firmware on it,
 * please visit the following page:
 *     [1] https://docs.silabs.com/bluetooth/3.1
 *         - Take into condideration that the library itself
 *           is designed to work with GSDK version 3.1.0
 *           If you wish to use a different version of firmware,
 *           take into consideration that some functions might not work.
 * </pre>
 *
 * @author MikroE Team
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "ble9.h"
#include "log.h"

#define PROCESS_BUFFER_SIZE 200

static ble9_t ble9;
static log_t logger;

static uint8_t app_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
static int32_t app_buf_len = 0;

/**
 * @brief BLE 9 clearing application buffer.
 * @details This function clears memory of application buffer and reset its length.
 * @note None.
 */
static void ble9_clear_app_buf ( void );

/**
 * @brief BLE 9 data reading function.
 * @details This function reads data from device and concatenates data to application buffer. 
 * @param[in] ctx : Click context object.
 * See #ble9_t object definition for detailed explanation.
 * @return @li @c  0 - Read some data.
 *         @li @c -1 - Nothing is read.
 * See #err_t definition for detailed explanation.
 * @note None.
 */
static err_t ble9_process ( ble9_t *ctx );

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    ble9_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 ----" );
    Delay_ms ( 100 );

    // Click initialization.
    ble9_cfg_setup( &cfg );
    BLE9_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    ble9_init( &ble9, &cfg );
    Delay_ms ( 1000 );
    
    // Clear app buffer
    ble9_process ( &ble9 );
    ble9_clear_app_buf( );
    Delay_ms ( 100 );
    
    if ( BLE9_OK == ble9_sys_get_version ( &ble9 ) )
    {
        log_printf( &logger, "--- System Version ---\r\n" );
        log_printf( &logger, " Major: 0x%.4X\r\n", ble9.ble9_version.version_major );
        log_printf( &logger, " Minor: 0x%.4X\r\n", ble9.ble9_version.version_minor );
        log_printf( &logger, " Patch: 0x%.4X\r\n", ble9.ble9_version.version_patch );
        log_printf( &logger, " Build: 0x%.4X\r\n", ble9.ble9_version.version_build );
        log_printf( &logger, " Bootloader: 0x%.8LX\r\n", ble9.ble9_version.version_bootloader );
        log_printf( &logger, " Hash: 0x%.8LX\r\n", ble9.ble9_version.version_hash );
        log_printf( &logger, "------------------------\r\n" );
    }
    
    log_printf( &logger, "Creating advertising point...\r\n" );
    Delay_ms ( 100 );
    ble9_adv_create_id ( &ble9 );

    log_printf( &logger, "Starting module advertising...\r\n" );
    Delay_ms ( 100 );
    ble9_adv_start ( &ble9, BLE9_ADVERTISER_MODE_DISCOVERABLE_GENERAL, 
                     BLE9_ADVERTISER_MODE_CONNECTABLE_SCANNABLE );

    log_printf( &logger, "The module has been configured.\r\n" );
    Delay_ms ( 100 );
}

void application_task ( void )
{
    ble9_process ( &ble9 );
    if ( app_buf_len > 0 ) 
    {
        for ( uint16_t cnt = 0; cnt < app_buf_len; cnt++ )
        {
            log_printf( &logger, "%.2X ", ( uint16_t ) app_buf[ cnt ] );
        }
        ble9_clear_app_buf( );
    }
}

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;
}

static void ble9_clear_app_buf ( void ) 
{
    memset( app_buf, 0, app_buf_len );
    app_buf_len = 0;
}

static err_t ble9_process ( ble9_t *ctx ) 
{
    uint8_t rx_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
    int32_t rx_size = 0;
    rx_size = ble9_generic_read( ctx, rx_buf, PROCESS_BUFFER_SIZE );
    if ( rx_size > 0 ) 
    {
        int32_t buf_cnt = app_buf_len;
        if ( ( ( app_buf_len + rx_size ) > PROCESS_BUFFER_SIZE ) && ( app_buf_len > 0 ) ) 
        {
            buf_cnt = PROCESS_BUFFER_SIZE - ( ( app_buf_len + rx_size ) - PROCESS_BUFFER_SIZE );
            memmove ( app_buf, &app_buf[ PROCESS_BUFFER_SIZE - buf_cnt ], buf_cnt );
        }
        for ( int32_t rx_cnt = 0; rx_cnt < rx_size; rx_cnt++ ) 
        {
            if ( rx_buf[ rx_cnt ] ) 
            {
                app_buf[ buf_cnt++ ] = rx_buf[ rx_cnt ];
                if ( app_buf_len < PROCESS_BUFFER_SIZE )
                {
                    app_buf_len++;
                }
            }
        }
        return BLE9_OK;
    }
    return BLE9_ERROR;
}

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

/*!
 * @file main.c
 * @brief BLE 9 Click example
 *
 * # Description
 * This example demonstrates the use of BLE 9 click board by processing
 * the incoming data and displaying them on the USB UART.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver and performs the click default configuration.
 *
 * ## Application Task
 * Reads and processes all incoming data and displays them on the USB UART.
 *
 * ## Additional Function
 * - static void ble9_clear_app_buf ( void )
 * - static err_t ble9_process ( ble9_t *ctx )
 * 
 * <pre>
 * For more information on the chip itself and the firmware on it,
 * please visit the following page:
 *     [1] https://docs.silabs.com/bluetooth/3.1
 *         - Take into condideration that the library itself
 *           is designed to work with GSDK version 3.1.0
 *           If you wish to use a different version of firmware,
 *           take into consideration that some functions might not work.
 * </pre>
 *
 * @author MikroE Team
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "ble9.h"
#include "log.h"

#define PROCESS_BUFFER_SIZE 200

static ble9_t ble9;
static log_t logger;

static uint8_t app_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
static int32_t app_buf_len = 0;

/**
 * @brief BLE 9 clearing application buffer.
 * @details This function clears memory of application buffer and reset its length.
 * @note None.
 */
static void ble9_clear_app_buf ( void );

/**
 * @brief BLE 9 data reading function.
 * @details This function reads data from device and concatenates data to application buffer. 
 * @param[in] ctx : Click context object.
 * See #ble9_t object definition for detailed explanation.
 * @return @li @c  0 - Read some data.
 *         @li @c -1 - Nothing is read.
 * See #err_t definition for detailed explanation.
 * @note None.
 */
static err_t ble9_process ( ble9_t *ctx );

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    ble9_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 ----" );
    Delay_ms ( 100 );

    // Click initialization.
    ble9_cfg_setup( &cfg );
    BLE9_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    ble9_init( &ble9, &cfg );
    Delay_ms ( 1000 );
    
    // Clear app buffer
    ble9_process ( &ble9 );
    ble9_clear_app_buf( );
    Delay_ms ( 100 );
    
    if ( BLE9_OK == ble9_sys_get_version ( &ble9 ) )
    {
        log_printf( &logger, "--- System Version ---\r\n" );
        log_printf( &logger, " Major: 0x%.4X\r\n", ble9.ble9_version.version_major );
        log_printf( &logger, " Minor: 0x%.4X\r\n", ble9.ble9_version.version_minor );
        log_printf( &logger, " Patch: 0x%.4X\r\n", ble9.ble9_version.version_patch );
        log_printf( &logger, " Build: 0x%.4X\r\n", ble9.ble9_version.version_build );
        log_printf( &logger, " Bootloader: 0x%.8LX\r\n", ble9.ble9_version.version_bootloader );
        log_printf( &logger, " Hash: 0x%.8LX\r\n", ble9.ble9_version.version_hash );
        log_printf( &logger, "------------------------\r\n" );
    }
    
    log_printf( &logger, "Creating advertising point...\r\n" );
    Delay_ms ( 100 );
    ble9_adv_create_id ( &ble9 );

    log_printf( &logger, "Starting module advertising...\r\n" );
    Delay_ms ( 100 );
    ble9_adv_start ( &ble9, BLE9_ADVERTISER_MODE_DISCOVERABLE_GENERAL, 
                     BLE9_ADVERTISER_MODE_CONNECTABLE_SCANNABLE );

    log_printf( &logger, "The module has been configured.\r\n" );
    Delay_ms ( 100 );
}

void application_task ( void )
{
    ble9_process ( &ble9 );
    if ( app_buf_len > 0 ) 
    {
        for ( uint16_t cnt = 0; cnt < app_buf_len; cnt++ )
        {
            log_printf( &logger, "%.2X ", ( uint16_t ) app_buf[ cnt ] );
        }
        ble9_clear_app_buf( );
    }
}

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;
}

static void ble9_clear_app_buf ( void ) 
{
    memset( app_buf, 0, app_buf_len );
    app_buf_len = 0;
}

static err_t ble9_process ( ble9_t *ctx ) 
{
    uint8_t rx_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
    int32_t rx_size = 0;
    rx_size = ble9_generic_read( ctx, rx_buf, PROCESS_BUFFER_SIZE );
    if ( rx_size > 0 ) 
    {
        int32_t buf_cnt = app_buf_len;
        if ( ( ( app_buf_len + rx_size ) > PROCESS_BUFFER_SIZE ) && ( app_buf_len > 0 ) ) 
        {
            buf_cnt = PROCESS_BUFFER_SIZE - ( ( app_buf_len + rx_size ) - PROCESS_BUFFER_SIZE );
            memmove ( app_buf, &app_buf[ PROCESS_BUFFER_SIZE - buf_cnt ], buf_cnt );
        }
        for ( int32_t rx_cnt = 0; rx_cnt < rx_size; rx_cnt++ ) 
        {
            if ( rx_buf[ rx_cnt ] ) 
            {
                app_buf[ buf_cnt++ ] = rx_buf[ rx_cnt ];
                if ( app_buf_len < PROCESS_BUFFER_SIZE )
                {
                    app_buf_len++;
                }
            }
        }
        return BLE9_OK;
    }
    return BLE9_ERROR;
}

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

/*!
 * @file main.c
 * @brief BLE 9 Click example
 *
 * # Description
 * This example demonstrates the use of BLE 9 click board by processing
 * the incoming data and displaying them on the USB UART.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver and performs the click default configuration.
 *
 * ## Application Task
 * Reads and processes all incoming data and displays them on the USB UART.
 *
 * ## Additional Function
 * - static void ble9_clear_app_buf ( void )
 * - static err_t ble9_process ( ble9_t *ctx )
 * 
 * <pre>
 * For more information on the chip itself and the firmware on it,
 * please visit the following page:
 *     [1] https://docs.silabs.com/bluetooth/3.1
 *         - Take into condideration that the library itself
 *           is designed to work with GSDK version 3.1.0
 *           If you wish to use a different version of firmware,
 *           take into consideration that some functions might not work.
 * </pre>
 *
 * @author MikroE Team
 */
// ------------------------------------------------------------------- INCLUDES

#include "board.h"
#include "ble9.h"
#include "log.h"

#define PROCESS_BUFFER_SIZE 200

static ble9_t ble9;
static log_t logger;

static uint8_t app_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
static int32_t app_buf_len = 0;

/**
 * @brief BLE 9 clearing application buffer.
 * @details This function clears memory of application buffer and reset its length.
 * @note None.
 */
static void ble9_clear_app_buf ( void );

/**
 * @brief BLE 9 data reading function.
 * @details This function reads data from device and concatenates data to application buffer. 
 * @param[in] ctx : Click context object.
 * See #ble9_t object definition for detailed explanation.
 * @return @li @c  0 - Read some data.
 *         @li @c -1 - Nothing is read.
 * See #err_t definition for detailed explanation.
 * @note None.
 */
static err_t ble9_process ( ble9_t *ctx );

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

void application_init ( void )
{
    log_cfg_t log_cfg;
    ble9_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 ----" );
    Delay_ms ( 100 );

    // Click initialization.
    ble9_cfg_setup( &cfg );
    BLE9_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    ble9_init( &ble9, &cfg );
    Delay_ms ( 1000 );
    
    // Clear app buffer
    ble9_process ( &ble9 );
    ble9_clear_app_buf( );
    Delay_ms ( 100 );
    
    if ( BLE9_OK == ble9_sys_get_version ( &ble9 ) )
    {
        log_printf( &logger, "--- System Version ---\r\n" );
        log_printf( &logger, " Major: 0x%.4X\r\n", ble9.ble9_version.version_major );
        log_printf( &logger, " Minor: 0x%.4X\r\n", ble9.ble9_version.version_minor );
        log_printf( &logger, " Patch: 0x%.4X\r\n", ble9.ble9_version.version_patch );
        log_printf( &logger, " Build: 0x%.4X\r\n", ble9.ble9_version.version_build );
        log_printf( &logger, " Bootloader: 0x%.8LX\r\n", ble9.ble9_version.version_bootloader );
        log_printf( &logger, " Hash: 0x%.8LX\r\n", ble9.ble9_version.version_hash );
        log_printf( &logger, "------------------------\r\n" );
    }
    
    log_printf( &logger, "Creating advertising point...\r\n" );
    Delay_ms ( 100 );
    ble9_adv_create_id ( &ble9 );

    log_printf( &logger, "Starting module advertising...\r\n" );
    Delay_ms ( 100 );
    ble9_adv_start ( &ble9, BLE9_ADVERTISER_MODE_DISCOVERABLE_GENERAL, 
                     BLE9_ADVERTISER_MODE_CONNECTABLE_SCANNABLE );

    log_printf( &logger, "The module has been configured.\r\n" );
    Delay_ms ( 100 );
}

void application_task ( void )
{
    ble9_process ( &ble9 );
    if ( app_buf_len > 0 ) 
    {
        for ( uint16_t cnt = 0; cnt < app_buf_len; cnt++ )
        {
            log_printf( &logger, "%.2X ", ( uint16_t ) app_buf[ cnt ] );
        }
        ble9_clear_app_buf( );
    }
}

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;
}

static void ble9_clear_app_buf ( void ) 
{
    memset( app_buf, 0, app_buf_len );
    app_buf_len = 0;
}

static err_t ble9_process ( ble9_t *ctx ) 
{
    uint8_t rx_buf[ PROCESS_BUFFER_SIZE ] = { 0 };
    int32_t rx_size = 0;
    rx_size = ble9_generic_read( ctx, rx_buf, PROCESS_BUFFER_SIZE );
    if ( rx_size > 0 ) 
    {
        int32_t buf_cnt = app_buf_len;
        if ( ( ( app_buf_len + rx_size ) > PROCESS_BUFFER_SIZE ) && ( app_buf_len > 0 ) ) 
        {
            buf_cnt = PROCESS_BUFFER_SIZE - ( ( app_buf_len + rx_size ) - PROCESS_BUFFER_SIZE );
            memmove ( app_buf, &app_buf[ PROCESS_BUFFER_SIZE - buf_cnt ], buf_cnt );
        }
        for ( int32_t rx_cnt = 0; rx_cnt < rx_size; rx_cnt++ ) 
        {
            if ( rx_buf[ rx_cnt ] ) 
            {
                app_buf[ buf_cnt++ ] = rx_buf[ rx_cnt ];
                if ( app_buf_len < PROCESS_BUFFER_SIZE )
                {
                    app_buf_len++;
                }
            }
        }
        return BLE9_OK;
    }
    return BLE9_ERROR;
}

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