CC2540 制作一个 iBeacon

准备工作

  1. 一台 PC
  2. IAR Embedded Workbench 集成开发环境，可以用30天试用版本。
  3. 支持 蓝牙 4.0 的智能手机一部，并安装下列应用之一
    1. Android Google Play Store.
    2. iPhone App Store.
  4. CC2540 开发板
  5. CCDebugger 下载器

创建 iBeacon 工程文档

  • 安装 TI 官方的 CC254x 开发环境
  • 复制 C:\Texas Instruments\BLE-CC254x-1.3.2\Projects\ble\SimpleBLEBroadcaster 文件夹
  • 粘贴到：C:\Texas Instruments\BLE-CC254x-1.3.2\Projects\ble\iBeacon
  • 运行 IAR Embedded Workbench，点击 File > Open > Workspace

修改源代码

simpleBLEBroadcaster.c

// GAP - Advertisement data (max size = 31 bytes, though this is
// best kept short to conserve power while advertisting)
static uint8 advertData[] =
{
  // Flags; this sets the device to use limited discoverable
  // mode (advertises for 30 seconds at a time) instead of general
  // discoverable mode (advertises indefinitely)
  0x02,   // length of this data
  GAP_ADTYPE_FLAGS,
  GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED,

  // three-byte broadcast of the data "1 2 3"
  0x04,   // length of this data including the data type byte
  GAP_ADTYPE_MANUFACTURER_SPECIFIC,      // manufacturer specific advertisement data type
  1,
  2,
  3
};

修改下面关键字

  • UID:
    E2C56DB5-DFFB-48D2-B060-D0F5A71096E0
  • Major:
    1 (0x0001)
  • Minor:
    1 (0x0001)
  • Measured Power:
    -59 (0xc5)
// GAP - Advertisement data (max size = 31 bytes, though this is
// best kept short to conserve power while advertisting)
static uint8 advertData[] =
{
  // 25 byte ibeacon advertising data
  // Preamble: 0x4c000215
  // UUID: E2C56DB5-DFFB-48D2-B060-D0F5A71096E0
  // Major: 1 (0x0001)
  // Minor: 1 (0x0001)
  // Measured Power: -59 (0xc5)
  0x1A, // length of this data including the data type byte
  GAP_ADTYPE_MANUFACTURER_SPECIFIC, // manufacturer specific advertisement data type
  0x4c,
  0x00,
  0x02,
  0x15,
  0xe2,
  0xc5,
  0x6d,
  0xb5,
  0xdf,
  0xfb,
  0x48,
  0xd2,
  0xb0,
  0x60,
  0xd0,
  0xf5,
  0xa7,
  0x10,
  0x96,
  0xe0,
  0x00,
  0x01,
  0x00,
  0x01,
  0xc5
};

接下来修改广播类型，将下面代码

//uint8 advType = GAP_ADTYPE_ADV_NONCONN_IND;// use non-connectable advertisements
uint8 advType = GAP_ADTYPE_ADV_DISCOVER_IND; // use scannable unidirected advertisements

修改为

uint8 advType = GAP_ADTYPE_ADV_NONCONN_IND;   // use non-connectable advertisements
//uint8 advType = GAP_ADTYPE_ADV_DISCOVER_IND; // use scannable unidirected advertisements

接下来修改 GAP

// Set the GAP Role Parameters
GAPRole_SetParameter( GAPROLE_ADVERT_ENABLED, sizeof( uint8 ), &initial_advertising_enable );
GAPRole_SetParameter( GAPROLE_ADVERT_OFF_TIME, sizeof( uint16 ), &gapRole_AdvertOffTime );

GAPRole_SetParameter( GAPROLE_SCAN_RSP_DATA, sizeof ( scanRspData ), scanRspData );
GAPRole_SetParameter( GAPROLE_ADVERT_DATA, sizeof( advertData ), advertData );
GAPRole_SetParameter( GAPROLE_ADV_EVENT_TYPE, sizeof( uint8 ), &advType );

因为 iBeacon 必须不间断广播，并且不响应任何数据请求，所以我们要修改

GAPROLE_ADVERT_OFF_TIME 和 GAPROLE_SCAN_RSP_DATA。
// Set the GAP Role Parameters
GAPRole_SetParameter( GAPROLE_ADVERT_ENABLED, sizeof( uint8 ), &initial_advertising_enable );
//GAPRole_SetParameter( GAPROLE_ADVERT_OFF_TIME, sizeof( uint16 ), &gapRole_AdvertOffTime );

//GAPRole_SetParameter( GAPROLE_SCAN_RSP_DATA, sizeof ( scanRspData ), scanRspData );
GAPRole_SetParameter( GAPROLE_ADVERT_DATA, sizeof( advertData ), advertData );
GAPRole_SetParameter( GAPROLE_ADV_EVENT_TYPE, sizeof( uint8 ), &advType );

保存工程后，进行编译，并通过 CCDebugger 下载程序到开发板中。
Select Project > Clean to clean the project.
Select Project > Make to make the project.
Select Project > Download and Debug to send the code to the CC2540 Key Fob
Select Debug > Go to Run the code on the CC2540 Key Fob.