如何在低功耗蓝牙中向服务添加特征

分类：编程问答

如何解决如何在低功耗蓝牙中向服务添加特征

似乎我无法为Bluetooth Low Energy中的服务添加新特性。我基于简单外围设备示例进行编程，该示例具有5个特征。我想根据在simple_gatt_profile.c和.h中如何初始化其他5个特征来添加第6个和第7个特征。当我这样做时，代码不再起作用，在main中调用bios_start（）之后，它似乎挂在了某个地方。任务不被调用。因此，我创建特征的方式一定存在问题。这是一些代码： 从simple_gatt_profile.h：

// Profile Parameters
#define SIMPLEPROFILE_CHAR1                    0  // RW uint8 - Profile Characteristic 1 value

#define SIMPLEPROFILE_CHAR2                    1  // RW uint8 - Profile Characteristic 2 value

#define SIMPLEPROFILE_CHAR3                    2  // RW uint8 - Profile Characteristic 3 value

#define SIMPLEPROFILE_CHAR4                    3  // RW uint8 - Profile Characteristic 4 value

#define SIMPLEPROFILE_CHAR5                    4  // RW uint8 - Profile Characteristic 5 value

#define SIMPLEPROFILE_CHAR6                    5  // RW uint8 - Profile Characteristic 6 value

#define SIMPLEPROFILE_CHAR7                    6  // RW uint8 - Profile Characteristic 7 value

// Simple Profile Service UUID
#define SIMPLEPROFILE_SERV_UUID               0xFFF0

// Key Pressed UUID
#define SIMPLEPROFILE_CHAR1_UUID            0xFFF1
#define SIMPLEPROFILE_CHAR2_UUID            0xFFF2
#define SIMPLEPROFILE_CHAR3_UUID            0xFFF3
#define SIMPLEPROFILE_CHAR4_UUID            0xFFF4
#define SIMPLEPROFILE_CHAR5_UUID            0xFFF5
#define SIMPLEPROFILE_CHAR6_UUID            0xFFF6
#define SIMPLEPROFILE_CHAR7_UUID            0xFFF7

// Simple Keys Profile Services bit fields
#define SIMPLEPROFILE_SERVICE               0x00000001

// Length of Characteristics in bytes
#define SIMPLEPROFILE_CHAR1_LEN           20
#define SIMPLEPROFILE_CHAR2_LEN           20
#define SIMPLEPROFILE_CHAR3_LEN           20
#define SIMPLEPROFILE_CHAR4_LEN           20
#define SIMPLEPROFILE_CHAR5_LEN           20
#define SIMPLEPROFILE_CHAR6_LEN           20
#define SIMPLEPROFILE_CHAR7_LEN           14

从simple_gatt_profile.c中获取：

// Simple GATT Profile Service UUID: 0xFFF0
CONST uint8 simpleProfileServUUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_SERV_UUID),HI_UINT16(SIMPLEPROFILE_SERV_UUID)
};

// Characteristic 1 UUID: 0xFFF1
CONST uint8 simpleProfilechar1UUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_CHAR1_UUID),HI_UINT16(SIMPLEPROFILE_CHAR1_UUID)
};

// Characteristic 2 UUID: 0xFFF2
CONST uint8 simpleProfilechar2UUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_CHAR2_UUID),HI_UINT16(SIMPLEPROFILE_CHAR2_UUID)
};

// Characteristic 3 UUID: 0xFFF3
CONST uint8 simpleProfilechar3UUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_CHAR3_UUID),HI_UINT16(SIMPLEPROFILE_CHAR3_UUID)
};

// Characteristic 4 UUID: 0xFFF4
CONST uint8 simpleProfilechar4UUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_CHAR4_UUID),HI_UINT16(SIMPLEPROFILE_CHAR4_UUID)
};

// Characteristic 5 UUID: 0xFFF5
CONST uint8 simpleProfilechar5UUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_CHAR5_UUID),HI_UINT16(SIMPLEPROFILE_CHAR5_UUID)
};

// Characteristic 6 UUID: 0xFFF6
CONST uint8 simpleProfilechar6UUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_CHAR6_UUID),HI_UINT16(SIMPLEPROFILE_CHAR6_UUID)
};

// Characteristic 7 UUID: 0xFFF7
CONST uint8 simpleProfilechar7UUID[ATT_BT_UUID_SIZE] =
{
  LO_UINT16(SIMPLEPROFILE_CHAR7_UUID),HI_UINT16(SIMPLEPROFILE_CHAR7_UUID)
};
/*********************************************************************
 * EXTERNAL VARIABLES
 */

/*********************************************************************
 * EXTERNAL FUNCTIONS
 */

/*********************************************************************
 * LOCAL VARIABLES
 */

static simpleProfileCBs_t *simpleProfile_AppCBs = NULL;

/*********************************************************************
 * Profile Attributes - variables
 */

// Simple Profile Service attribute
static CONST gattAttrType_t simpleProfileService = { ATT_BT_UUID_SIZE,simpleProfileServUUID };


// Simple Profile Characteristic 1 Properties
static uint8 simpleProfileChar1Props = GATT_PROP_READ | GATT_PROP_WRITE| GATT_PROP_NOTIFY;

// Characteristic 1 Value
static uint8 simpleProfileChar1[SIMPLEPROFILE_CHAR1_LEN] = { 0,0 };

// Simple Profile Characteristic 1 User Description
static uint8 simpleProfileChar1UserDesp[8] = "Amsel 1";


// Simple Profile Characteristic 2 Properties
static uint8 simpleProfileChar2Props = GATT_PROP_READ | GATT_PROP_WRITE| GATT_PROP_NOTIFY;

// Characteristic 2 Value
static uint8 simpleProfileChar2[SIMPLEPROFILE_CHAR2_LEN] = { 0,0 };

// Simple Profile Characteristic 2 User Description
static uint8 simpleProfileChar2UserDesp[8] = "Amsel 2";


// Simple Profile Characteristic 3 Properties
static uint8 simpleProfileChar3Props = GATT_PROP_READ | GATT_PROP_WRITE| GATT_PROP_NOTIFY;

// Characteristic 3 Value
static uint8 simpleProfileChar3[SIMPLEPROFILE_CHAR3_LEN] = { 0,0 };

// Simple Profile Characteristic 3 User Description
static uint8 simpleProfileChar3UserDesp[8] = "Amsel 3";


// Simple Profile Characteristic 4 Properties
static uint8 simpleProfileChar4Props = GATT_PROP_READ | GATT_PROP_WRITE | GATT_PROP_NOTIFY;

// Characteristic 4 Value
static uint8 simpleProfileChar4[SIMPLEPROFILE_CHAR4_LEN] = { 0,0 };

// Simple Profile Characteristic 4 User Description
static uint8 simpleProfileChar4UserDesp[16] = "Amsel 4,Notify";

// Simple Profile Characteristic 5 Properties
static uint8 simpleProfileChar5Props = GATT_PROP_READ | GATT_PROP_WRITE | GATT_PROP_NOTIFY;

// Characteristic 5 Value
static uint8 simpleProfileChar5[SIMPLEPROFILE_CHAR5_LEN] = { 0,0 };

// Simple Profile Characteristic 5 User Description
static uint8 simpleProfileChar5UserDesp[8] = "Dialog1";

// Simple Profile Characteristic 6 Properties
static uint8 simpleProfileChar6Props = GATT_PROP_READ | GATT_PROP_WRITE | GATT_PROP_NOTIFY;

// Characteristic 6 Value
static uint8 simpleProfileChar6[SIMPLEPROFILE_CHAR6_LEN] = { 0,0 };

// Simple Profile Characteristic 6 User Description
static uint8 simpleProfileChar6UserDesp[8] = "Dialog2";

// Simple Profile Characteristic 7 Properties
static uint8 simpleProfileChar7Props = GATT_PROP_READ | GATT_PROP_WRITE | GATT_PROP_NOTIFY;

// Characteristic 7 Value
static uint8 simpleProfileChar7[SIMPLEPROFILE_CHAR7_LEN] = { 0,0 };

// Simple Profile Characteristic 7 User Description
static uint8 simpleProfileChar7UserDesp[8] = "Dialog3";

// Simple Profile Characteristic 4 Configuration Each client has its own
// instantiation of the Client Characteristic Configuration. Reads of the
// Client Characteristic Configuration only shows the configuration for
// that client and writes only affect the configuration of that client.
static gattCharCfg_t *simpleProfileChar1Config;
static gattCharCfg_t *simpleProfileChar2Config;
static gattCharCfg_t *simpleProfileChar3Config;
static gattCharCfg_t *simpleProfileChar4Config;
static gattCharCfg_t *simpleProfileChar5Config;
static gattCharCfg_t *simpleProfileChar6Config;
static gattCharCfg_t *simpleProfileChar7Config;

/*********************************************************************
 * Profile Attributes - Table
 */

static gattAttribute_t simpleProfileAttrTbl[SERVAPP_NUM_ATTR_SUPPORTED] =
{
  // Simple Profile Service
  {
    { ATT_BT_UUID_SIZE,primaryServiceUUID },/* type */
    GATT_PERMIT_READ,/* permissions */
    0,/* handle */
    (uint8 *)&simpleProfileService            /* pValue */
  },// Characteristic 1 Declaration
  {
    { ATT_BT_UUID_SIZE,characterUUID },GATT_PERMIT_READ,&simpleProfileChar1Props
  },// Characteristic Value 1
    {
      { ATT_BT_UUID_SIZE,simpleProfilechar1UUID },GATT_PERMIT_READ | GATT_PERMIT_WRITE,(uint8 *)&simpleProfileChar1
    },// Characteristic 1 configuration
    {
      { ATT_BT_UUID_SIZE,clientCharCfgUUID },(uint8 *)&simpleProfileChar1Config
    },// Characteristic 1 User Description
    {
      { ATT_BT_UUID_SIZE,charUserDescUUID },simpleProfileChar1UserDesp
    },// Characteristic 2 Declaration
    {
      { ATT_BT_UUID_SIZE,&simpleProfileChar2Props
    },// Characteristic Value 2
      {
        { ATT_BT_UUID_SIZE,simpleProfilechar2UUID },(uint8 *)&simpleProfileChar2
      },// Characteristic 2 configuration
      {
        { ATT_BT_UUID_SIZE,(uint8 *)&simpleProfileChar2Config
      },// Characteristic 2 User Description
      {
        { ATT_BT_UUID_SIZE,simpleProfileChar2UserDesp
      },// Characteristic 3 Declaration
    {
      { ATT_BT_UUID_SIZE,&simpleProfileChar3Props
    },// Characteristic Value 3
      {
        { ATT_BT_UUID_SIZE,simpleProfilechar3UUID },(uint8 *)&simpleProfileChar3
      },// Characteristic 3 configuration
      {
        { ATT_BT_UUID_SIZE,(uint8 *)&simpleProfileChar3Config
      },// Characteristic 3 User Description
      {
        { ATT_BT_UUID_SIZE,simpleProfileChar3UserDesp
      },// Characteristic 4 Declaration
    {
      { ATT_BT_UUID_SIZE,GATT_PERMIT_READ| GATT_PERMIT_WRITE,&simpleProfileChar4Props
    },// Characteristic Value 4
      {
        { ATT_BT_UUID_SIZE,simpleProfilechar4UUID },(uint8 *)&simpleProfileChar4
      },// Characteristic 4 configuration
      {
        { ATT_BT_UUID_SIZE,(uint8 *)&simpleProfileChar4Config
      },// Characteristic 4 User Description
      {
        { ATT_BT_UUID_SIZE,simpleProfileChar4UserDesp
      },// Characteristic 5 Declaration
      {
        { ATT_BT_UUID_SIZE,&simpleProfileChar5Props
      },// Characteristic Value 5
        {
          { ATT_BT_UUID_SIZE,simpleProfilechar5UUID },(uint8 *)&simpleProfileChar5
        },// Characteristic 5 configuration
        {
          { ATT_BT_UUID_SIZE,(uint8 *)&simpleProfileChar5Config
        },// Characteristic 5 User Description
        {
          { ATT_BT_UUID_SIZE,simpleProfileChar5UserDesp
        },// Characteristic 6 Declaration
        {
          { ATT_BT_UUID_SIZE,&simpleProfileChar6Props
        },// Characteristic Value 6
          {
            { ATT_BT_UUID_SIZE,(uint8 *)&simpleProfileChar6
          },// Characteristic 5 configuration
          {
            { ATT_BT_UUID_SIZE,(uint8 *)&simpleProfileChar6Config
          },// Characteristic 6 User Description
          {
            { ATT_BT_UUID_SIZE,simpleProfileChar6UserDesp
          },// Characteristic 7 Declaration
          {
            { ATT_BT_UUID_SIZE,&simpleProfileChar7Props
          },// Characteristic Value 7
            {
              { ATT_BT_UUID_SIZE,simpleProfilechar7UUID },(uint8 *)&simpleProfileChar7
            },// Characteristic 7 configuration
            {
              { ATT_BT_UUID_SIZE,(uint8 *)&simpleProfileChar7Config
            },// Characteristic 7 User Description
            {
              { ATT_BT_UUID_SIZE,simpleProfileChar7UserDesp
            },};
bStatus_t SimpleProfile_AddService( uint32 services )
{
  uint8 status;

  // Allocate Client Characteristic Configuration table
  simpleProfileChar1Config = (gattCharCfg_t *)ICall_malloc( sizeof(gattCharCfg_t) *
                                                              linkDBNumConns );
    if ( simpleProfileChar1Config == NULL )
    {
      return ( bleMemAllocError );
    }

    // Initialize Client Characteristic Configuration attributes
    GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar1Config );

    simpleProfileChar2Config = (gattCharCfg_t *)ICall_malloc( sizeof(gattCharCfg_t) *
                                                                 linkDBNumConns );
       if ( simpleProfileChar2Config == NULL )
       {
         return ( bleMemAllocError );
       }

       // Initialize Client Characteristic Configuration attributes
       GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar2Config );

   simpleProfileChar3Config = (gattCharCfg_t *)ICall_malloc( sizeof(gattCharCfg_t) *
                                                                linkDBNumConns );
      if ( simpleProfileChar3Config == NULL )
      {
        return ( bleMemAllocError );
      }

      // Initialize Client Characteristic Configuration attributes
      GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar3Config );

  simpleProfileChar4Config = (gattCharCfg_t *)ICall_malloc( sizeof(gattCharCfg_t) *
                                                            linkDBNumConns );
  if ( simpleProfileChar4Config == NULL )
  {
    return ( bleMemAllocError );
  }

  // Initialize Client Characteristic Configuration attributes
  GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar4Config );

  simpleProfileChar5Config = (gattCharCfg_t *)ICall_malloc( sizeof(gattCharCfg_t) *
                                                            linkDBNumConns );
  if ( simpleProfileChar5Config == NULL )
  {
    return ( bleMemAllocError );
  }

  // Initialize Client Characteristic Configuration attributes
  GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar5Config );

  simpleProfileChar6Config = (gattCharCfg_t *)ICall_malloc( sizeof(gattCharCfg_t) *
                                                            linkDBNumConns );
  if ( simpleProfileChar6Config == NULL )
  {
    return ( bleMemAllocError );
  }
  // Initialize Client Characteristic Configuration attributes
  GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar6Config );

  // Initialize Client Characteristic Configuration attributes
  GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar7Config );

  simpleProfileChar7Config = (gattCharCfg_t *)ICall_malloc( sizeof(gattCharCfg_t) *
                                                            linkDBNumConns );
  if ( simpleProfileChar7Config == NULL )
  {
    return ( bleMemAllocError );
  }

  // Initialize Client Characteristic Configuration attributes
  GATTServApp_InitCharCfg( INVALID_CONNHANDLE,simpleProfileChar7Config );
  if ( services & SIMPLEPROFILE_SERVICE )
  {
    // Register GATT attribute list and CBs with GATT Server App
    status = GATTServApp_RegisterService( simpleProfileAttrTbl,GATT_NUM_ATTRS( simpleProfileAttrTbl ),GATT_MAX_ENCRYPT_KEY_SIZE,&simpleProfileCBs );
  }
  else
  {
    status = SUCCESS;
  }

  return ( status );
}

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