SDK下载地址：https://gitee.com/freqchip/FR801xH-SDK
开发版使用FRECHIP DEV1.2
项目目录：E:\ziliao\FREQCHIP\FR801xH-SDK-master\FR801xH-SDK-master\examples\dev1.0\ble_simple_peripheral
1.服务及及特性添加,添加之后可以通过蓝牙调试助手查看到蓝牙服务UUID，蓝牙描述服务UUID，蓝牙特征值UUID，以及客户端配置UUID（此用于警告与提示）
特征值声明(Characteristic Declaration)这个属性不显示
* Service UUID Value of the attribute
* Characteristic value uuid
* Characteristic value Permissions
* Characteristic 4 client characteristic configuration UUID
* Characteristic 1 User Description UUID
const gatt_attribute_t simple_profile_att_table[SP_IDX_NB] =
{
// Simple gatt Service Declaration
[SP_IDX_SERVICE] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_PRIMARY_SERVICE_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
UUID_SIZE_2, /* Max size of the value */ /* Service UUID size in service declaration */
(uint8_t*)sp_svc_uuid, /* Value of the attribute */ /* Service UUID value in service declaration */
},
// Characteristic 1 Declaration
[SP_IDX_CHAR1_DECLARATION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHARACTER_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
0, /* Max size of the value */
NULL, /* Value of the attribute */
},
// Characteristic 1 Value
[SP_IDX_CHAR1_VALUE] = {
{ UUID_SIZE_16, SP_CHAR1_TX_UUID }, /* UUID */
GATT_PROP_READ | GATT_PROP_NOTI, /* Permissions */
SP_CHAR1_VALUE_LEN, /* Max size of the value */
NULL, /* Value of the attribute */ /* Can assign a buffer here, or can be assigned in the application by user */
},
// Characteristic 1 client characteristic configuration
[SP_IDX_CHAR1_CFG] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CLIENT_CHAR_CFG_UUID) }, /* UUID */
GATT_PROP_READ | GATT_PROP_WRITE, /* Permissions */
2, /* Max size of the value */
NULL, /* Value of the attribute */ /* Can assign a buffer here, or can be assigned in the application by user */
},
// Characteristic 1 User Description
[SP_IDX_CHAR1_USER_DESCRIPTION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHAR_USER_DESC_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
SP_CHAR1_DESC_LEN, /* Max size of the value */
(uint8_t *)sp_char1_desc, /* Value of the attribute */
},
// Characteristic 2 Declaration
[SP_IDX_CHAR2_DECLARATION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHARACTER_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
0, /* Max size of the value */
NULL, /* Value of the attribute */
},
// Characteristic 2 Value
[SP_IDX_CHAR2_VALUE] = {
{ UUID_SIZE_16, SP_CHAR2_RX_UUID }, /* UUID */
GATT_PROP_READ | GATT_PROP_WRITE, /* Permissions */
SP_CHAR2_VALUE_LEN, /* Max size of the value */
NULL, /* Value of the attribute */ /* Can assign a buffer here, or can be assigned in the application by user */
},
// Characteristic 2 User Description
[SP_IDX_CHAR2_USER_DESCRIPTION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHAR_USER_DESC_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
SP_CHAR2_DESC_LEN, /* Max size of the value */
(uint8_t *)sp_char2_desc, /* Value of the attribute */
},
// Characteristic 3 Declaration
[SP_IDX_CHAR3_DECLARATION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHARACTER_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
0, /* Max size of the value */
NULL, /* Value of the attribute */
},
// Characteristic 3 Value
[SP_IDX_CHAR3_VALUE] = {
{ UUID_SIZE_2, UUID16_ARR(SP_CHAR3_UUID) }, /* UUID */
GATT_PROP_WRITE, /* Permissions */
SP_CHAR3_VALUE_LEN, /* Max size of the value */
NULL, /* Value of the attribute */ /* Can assign a buffer here, or can be assigned in the application by user */
},
// Characteristic 3 User Description
[SP_IDX_CHAR3_USER_DESCRIPTION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHAR_USER_DESC_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
SP_CHAR3_DESC_LEN, /* Max size of the value */
(uint8_t *)sp_char3_desc, /* Value of the attribute */
},
// Characteristic 4 Declaration
[SP_IDX_CHAR4_DECLARATION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHARACTER_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
0, /* Max size of the value */
NULL, /* Value of the attribute */
},
// Characteristic 4 Value
[SP_IDX_CHAR4_VALUE] = {
{ UUID_SIZE_2, UUID16_ARR(SP_CHAR4_UUID) }, /* UUID */
GATT_PROP_WRITE | GATT_PROP_NOTI, /* Permissions */
SP_CHAR4_VALUE_LEN, /* Max size of the value */
NULL, /* Value of the attribute */ /* Can assign a buffer here, or can be assigned in the application by user */
},
// Characteristic 4 client characteristic configuration
[SP_IDX_CHAR4_CFG] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CLIENT_CHAR_CFG_UUID) }, /* UUID */
GATT_PROP_READ | GATT_PROP_WRITE, /* Permissions */
SP_CHAR4_CCC_LEN, /* Max size of the value */
NULL, /* Value of the attribute */ /* Can assign a buffer here, or can be assigned in the application by user */
},
// Characteristic 4 User Description
[SP_IDX_CHAR4_USER_DESCRIPTION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHAR_USER_DESC_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
SP_CHAR4_DESC_LEN, /* Max size of the value */
(uint8_t *)sp_char4_desc, /* Value of the attribute */
},
// Characteristic 5 Declaration
[SP_IDX_CHAR5_DECLARATION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHARACTER_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
0, /* Max size of the value */
NULL, /* Value of the attribute */
},
// Characteristic 5 Value
[SP_IDX_CHAR5_VALUE] = {
{ UUID_SIZE_2, UUID16_ARR(SP_CHAR5_UUID) }, /* UUID */
GATT_PROP_WRITE | GATT_PROP_READ, /* Permissions */
SP_CHAR5_VALUE_LEN, /* Max size of the value */
NULL, /* Value of the attribute */ /* Can assign a buffer here, or can be assigned in the application by user */
},
// Characteristic 5 User Description
[SP_IDX_CHAR5_USER_DESCRIPTION] = {
{ UUID_SIZE_2, UUID16_ARR(GATT_CHAR_USER_DESC_UUID) }, /* UUID */
GATT_PROP_READ, /* Permissions */
SP_CHAR5_DESC_LEN, /* Max size of the value */
(uint8_t *)sp_char5_desc, /* Value of the attribute */
},
};2.对特征值读写操作的响应函数定义，对特征值的读写操作会触发调用回调函数，并触发相应的事件。
static uint16_t sp_gatt_msg_handler(gatt_msg_t *p_msg)
{
switch(p_msg->msg_evt)
{
case GATTC_MSG_READ_REQ:
sp_gatt_read_cb((uint8_t *)(p_msg->param.msg.p_msg_data), &(p_msg->param.msg.msg_len), p_msg->att_idx,p_msg->conn_idx );
break;
case GATTC_MSG_WRITE_REQ:
sp_gatt_write_cb((uint8_t*)(p_msg->param.msg.p_msg_data), (p_msg->param.msg.msg_len), p_msg->att_idx,p_msg->conn_idx);
break;
default:
break;
}
return p_msg->param.msg.msg_len;
}3.读写函数具体定义
static void sp_gatt_read_cb(uint8_t *p_read, uint16_t *len, uint16_t att_idx,uint8_t conn_idx )
{
switch (att_idx)
{
case SPEAKER_IDX_ONOFF_VALUE:
for (int i = 0; i < SPEAKER_ONOFF_VALUE_LEN; i++)
speaker_onoff_value[i] = speaker_onoff_value[0] + i + 1;
memcpy(p_read, speaker_onoff_value, SPEAKER_ONOFF_VALUE_LEN);
*len = SPEAKER_ONOFF_VALUE_LEN;
break;
case SPEAKER_IDX_STATUS_REPORT_VALUE:
for (int i = 0; i < SPEAKER_STATUS_REPORT_VALUE_LEN; i++)
speaker_status_report_value[i] = speaker_status_report_value[0] + i + 1;
memcpy(p_read, speaker_status_report_value, SPEAKER_STATUS_REPORT_VALUE_LEN);
*len = SPEAKER_STATUS_REPORT_VALUE_LEN;
break;
default:
break;
}
co_printf("Read request: len: %d value: 0x%x 0x%x \r\n", *len, (p_read)[0], (p_read)[*len-1]);
}二.主机读写操作
E:\ziliao\FREQCHIP\FR801xH-SDK-master\FR801xH-SDK-master\examples\dev1.0\ble_simple_central
1.定义需要操作的特征值UUID
#define SP_CHAR1_UUID 0xFFF1
#define SP_CHAR2_UUID 0xFFF2
const gatt_uuid_t client_att_tb[] =
{
[0] =
{ UUID_SIZE_2, UUID16_ARR(SP_CHAR1_UUID)},
[1] =
{ UUID_SIZE_2, UUID16_ARR(SP_CHAR2_UUID)},
};2.定义需要主动操作的步骤
read.att_idx 为需要读写的特征值UUID
gatt_client_read(read);数据读操作
gatt_client_write_cmd(write); 数据写操作
gatt_client_enable_ntf(ntf_enable); 数据提示
static uint16_t simple_central_msg_handler(gatt_msg_t *p_msg)
{
co_printf("CCC:%x\r\n",p_msg->msg_evt);
switch(p_msg->msg_evt)
{
case GATTC_MSG_NTF_REQ:
{
if(p_msg->att_idx == 0)
{
show_reg(p_msg->param.msg.p_msg_data,p_msg->param.msg.msg_len,1);
}
}
break;
case GATTC_MSG_READ_IND:
{
if(p_msg->att_idx == 0)
{
show_reg(p_msg->param.msg.p_msg_data,p_msg->param.msg.msg_len,1);
}
}
break;
case GATTC_MSG_CMP_EVT:
{
co_printf("op:%d done\r\n",p_msg->param.op.operation);
if(p_msg->param.op.operation == GATT_OP_PEER_SVC_REGISTERED)
{
uint16_t att_handles[2];
memcpy(att_handles,p_msg->param.op.arg,4);
show_reg((uint8_t *)att_handles,4,1);
gatt_client_enable_ntf_t ntf_enable;
ntf_enable.conidx = p_msg->conn_idx;
ntf_enable.client_id = client_id;
ntf_enable.att_idx = 0; //TX
gatt_client_enable_ntf(ntf_enable);
gatt_client_write_t write;
write.conidx = p_msg->conn_idx;
write.client_id = client_id;
write.att_idx = 1; //RX
write.p_data = "\x1\x2\x3\x4\x5\x6\x7";
write.data_len = 7;
gatt_client_write_cmd(write);
gatt_client_read_t read;
read.conidx = p_msg->conn_idx;
read.client_id = client_id;
read.att_idx = 0; //TX
gatt_client_read(read);
}
}
break;
default:
break;
}
return 0;
}总结：不用去纠结蓝牙协议的底层逻辑，学会应用，目标明确，会定义服务UUID，特征值UUID，
知道怎样读写数据即可。
程序最大的难点再于对蓝牙协议层初始化，需要掌握协议的知识，大部分应用在此基础上修改就好
void simple_central_init(void)
{
// set local device name
uint8_t local_name[] = "Simple Central";
gap_set_dev_name(local_name, sizeof(local_name));
gap_set_cb_func(app_gap_evt_cb);
// Initialize security related settings.
gap_bond_manager_init(BLE_BONDING_INFO_SAVE_ADDR, BLE_REMOTE_SERVICE_SAVE_ADDR, 8, true);
// gap_bond_manager_delete_all();
gap_security_param_t param =
{
.mitm = false,
.ble_secure_conn = false,
.io_cap = GAP_IO_CAP_NO_INPUT_NO_OUTPUT,
.pair_init_mode = GAP_PAIRING_MODE_WAIT_FOR_REQ,
.bond_auth = true,
.password = 0,
};
gap_security_param_init(¶m);
// Initialize GATT
gatt_client_t client;
client.p_att_tb = client_att_tb;
client.att_nb = 2;
client.gatt_msg_handler = simple_central_msg_handler;
client_id = gatt_add_client(&client);
simple_central_start_scan();
}
标签：UUID,GATT,SP,蓝牙,value,学习,client,msg,富芮坤
From： https://www.cnblogs.com/logicexpression/p/18171970