`CC254x-BLE协议栈添加服务与特征值
针对协议栈版本：CC254x-1.4.2.2 使用的工程文件：Texas InstrumentsBLE-CC254x-1.4.2.2ProjectsleSimpleBLEPeripheralCC2541DBSimpleBLEPeripheral.eww 实验过程： 1.修改profile 2.应用层处理 3.使用SensorTag测试结果 （后续有时间会写一篇ti协议栈OSAL任务调度的讲解） 一．增加服务，增加两个特征值 的宏定义 位置：simpleGATTprofile.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
#define SIMPLEPROFILE_TEST_UUID 0xFFE0
// 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 0xFFE1
#define SIMPLEPROFILE_CHAR7_UUID 0xFFE2
二．增加服务，增加两个特征值的UUID 位置：simpleGATTprofile.c // Simple GATT Profile Test UUID: 0xFFE0
CONST uint8 simpleProfileTestUUID[ATT_BT_UUID_SIZE] =
{
LO_UINT16(SIMPLEPROFILE_TEST_UUID), HI_UINT16(SIMPLEPROFILE_TEST_UUID)
};
// Characteristic 6 UUID: 0xFFE1
CONST uint8 simpleProfilechar6UUID[ATT_BT_UUID_SIZE] =
{
LO_UINT16(SIMPLEPROFILE_CHAR6_UUID), HI_UINT16(SIMPLEPROFILE_CHAR6_UUID)
};
// Characteristic 7 UUID: 0xFFE2
CONST uint8 simpleProfilechar7UUID[ATT_BT_UUID_SIZE] =
{
LO_UINT16(SIMPLEPROFILE_CHAR7_UUID), HI_UINT16(SIMPLEPROFILE_CHAR7_UUID)
};
三．增加服务和特征值的属性 位置：simpleGATTprofile.c
// Simple Profile Service attribute
static CONST gattAttrType_t simpleProfileService = { ATT_BT_UUID_SIZE, simpleProfileServUUID };
// Simple Profile Test attribute
static CONST gattAttrType_t simpleProfileTest = { ATT_BT_UUID_SIZE, simpleProfileTestUUID };
增加特征值6，属性为可读可写 增加特征值7，属性为Notify(通知) // Simple Profile Characteristic 6 Properties
static uint8 simpleProfileChar6Props = GATT_PROP_READ | GATT_PROP_WRITE;
// Characteristic 6 Value
static uint8 simpleProfileChar6 = 0;
// Simple Profile Characteristic 6 User Description
static uint8 simpleProfileChar6UserDesp[17] = "Characteristic 6";
// Simple Profile Characteristic 7 Properties
static uint8 simpleProfileChar7Props = GATT_PROP_NOTIFY;
// Characteristic 7 Value
static uint8 simpleProfileChar7 = 0;
// Simple Profile Characteristic 7 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 *simpleProfileChar7Config;
// Simple Profile Characteristic 7 User Description
static uint8 simpleProfileChar7UserDesp[17] = "Characteristic 7";
四．增加注册服务列表 位置：simpleGATTprofile.c static gattAttribute_t testProfileAttrTbl[8] =
{
// Simple Profile Service
{
{ ATT_BT_UUID_SIZE, primaryServiceUUID }, /* type */
GATT_PERMIT_READ, /* permissions */
0, /* handle */
(uint8 *)&simpleProfileTest /* pValue */
},
// Characteristic 6 Declaration
{
{ ATT_BT_UUID_SIZE, characterUUID },
GATT_PERMIT_READ,
0,
&simpleProfileChar6Props
},
// Characteristic Value 6
{
{ ATT_BT_UUID_SIZE, simpleProfilechar6UUID },
GATT_PERMIT_READ | GATT_PERMIT_WRITE,
0,
&simpleProfileChar6
},
// Characteristic 6 User Description
{
{ ATT_BT_UUID_SIZE, charUserDescUUID },
GATT_PERMIT_READ,
0,
simpleProfileChar6UserDesp
},
// Characteristic 7 Declaration
{
{ ATT_BT_UUID_SIZE, characterUUID },
GATT_PERMIT_READ,
0,
&simpleProfileChar7Props
},
// Characteristic Value 7
{
{ ATT_BT_UUID_SIZE, simpleProfilechar7UUID },
0,
0,
&simpleProfileChar7
},
// Characteristic 7 configuration
{
{ ATT_BT_UUID_SIZE, clientCharCfgUUID },
GATT_PERMIT_READ | GATT_PERMIT_WRITE,
0,
(uint8 *)&simpleProfileChar7Config
},
// Characteristic 7 User Description
{
{ ATT_BT_UUID_SIZE, charUserDescUUID },
GATT_PERMIT_READ,
0,
simpleProfileChar7UserDesp
},
};
五．注册新的服务 位置：SimpleProfile_AddService simpleProfileChar4Config = (gattCharCfg_t *)osal_mem_alloc( sizeof(gattCharCfg_t) *
linkDBNumConns );
simpleProfileChar7Config = (gattCharCfg_t *)osal_mem_alloc( sizeof(gattCharCfg_t) *
linkDBNumConns );
if ( simpleProfileChar4Config == NULL || simpleProfileChar7Config == NULL)
{
return ( bleMemAllocError );
}
// Initialize Client Characteristic Configuration attributes
GATTServApp_InitCharCfg( INVALID_CONNHANDLE, simpleProfileChar4Config );
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 );
status = GATTServApp_RegisterService( testProfileAttrTbl,
GATT_NUM_ATTRS( testProfileAttrTbl ),
GATT_MAX_ENCRYPT_KEY_SIZE,
&simpleProfileCBs );
六．增加特征值设置处理 位置：SimpleProfile_SetParameter case SIMPLEPROFILE_CHAR6:
if ( len == sizeof ( uint8 ) )
{
simpleProfileChar6 = *((uint8*)value);
}
else
{
ret = bleInvalidRange;
}
break;
case SIMPLEPROFILE_CHAR7:
if ( len == sizeof ( uint8 ) )
{
simpleProfileChar7 = *((uint8*)value);
// See if Notification has been enabled
GATTServApp_ProcessCharCfg( simpleProfileChar7Config, &simpleProfileChar7, FALSE,
testProfileAttrTbl, GATT_NUM_ATTRS( testProfileAttrTbl ),
INVALID_TASK_ID, simpleProfile_ReadAttrCB );
}
七．增加特征值获取处理 位置：SimpleProfile_GetParameter
case SIMPLEPROFILE_CHAR6:
*((uint8*)value) = simpleProfileChar6;
break;
case SIMPLEPROFILE_CHAR7:
*((uint8*)value) = simpleProfileChar7;
八．增加特征值读取处理 位置：simpleProfile_ReadAttrCB
九．增加特征值写入处理 位置：simpleProfile_WriteAttrCB case SIMPLEPROFILE_CHAR1_UUID:
case SIMPLEPROFILE_CHAR3_UUID:
case SIMPLEPROFILE_CHAR6_UUID:
//Validate the value
// Make sure it's not a blob oper
if ( offset == 0 )
{
if ( len != 1 )
{
status = ATT_ERR_INVALID_VALUE_SIZE;
}
}
else
{
status = ATT_ERR_ATTR_NOT_LONG;
}
//Write the value
if ( status == SUCCESS )
{
uint8 *pCurValue = (uint8 *)pAttr->pValue;
*pCurValue = pValue[0];
if( pAttr->pValue == &simpleProfileChar1 )
{
notifyApp = SIMPLEPROFILE_CHAR1;
}
else if( pAttr->pValue == &simpleProfileChar3 )
{
notifyApp = SIMPLEPROFILE_CHAR3;
}
else
{
notifyApp = SIMPLEPROFILE_CHAR6;
}
}
break;
到此为止！！！Profile就修改完了。下面开始应用层的处理。 十． 增加广播数据 位置：simpleBLEPeripheral.c 0x03, // length of this data
GAP_ADTYPE_16BIT_MORE, // some of the UUID's, but not all
LO_UINT16( SIMPLEPROFILE_TEST_UUID ),
HI_UINT16( SIMPLEPROFILE_TEST_UUID ),
十一．初始化特征值 位置：SimpleBLEPeripheral_Init uint8 charValue1 = 1;
uint8 charValue2 = 2;
uint8 charValue3 = 3;
uint8 charValue4 = 4;
uint8 charValue5[SIMPLEPROFILE_CHAR5_LEN] = { 1, 2, 3, 4, 5 };
uint8 charValue6 = 6;
uint8 charValue7 = 7;
SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR1, sizeof ( uint8 ), &charValue1 );
SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR2, sizeof ( uint8 ), &charValue2 );
SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR3, sizeof ( uint8 ), &charValue3 );
SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR4, sizeof ( uint8 ), &charValue4 );
SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR5, SIMPLEPROFILE_CHAR5_LEN, charValue5 );
SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR6, sizeof ( uint8 ), &charValue6 );
SimpleProfile_SetParameter( SIMPLEPROFILE_CHAR7, sizeof ( uint8 ), &charValue7 );
十二．增加特征值处理应用 位置：SimpleBLEPeripheral_ProcessEvent
时间处理函数中，在启动事件中创建周期性事件
周期性事件中调用处理函数performPeriodicTask
处理函数中读取char6的值，并写入char7 这样当char7改变时，会自动通知serve端
测试结果： 下载并运行程序，打开SensorTag这款TI官方APP。可以看到设备名。
点击设备并选择Service Explorer,可以看到我们添加的UUID为0xffe0的服务
点进去可以看到UUID为0xffe1的特征值其属性是读写，0xffe2属性为N（Notify）
点选0xffe2特征值，选择打开Notify开关on。
稍微等待，可以接收到设备notify过来的值06。
然后返回到UUID为0xffe1的特征值，修改其值为9
返回0xffe2可以看到设备主动notify过来的值是9
实验到此结束，你可以在开发板和手机之间传输 PWM等任何数据了。 其过程只针对TI协议栈CC254x-1.4.2.2这个版本。 后面有时间，开贴讲解协议栈中负责各层任务调度的OSAL系统。
`
|
0
/6 
工商网监
湘ICP备2023018690号
4516
淘帖
16
