1.目的
学习nrf51822一个主从一体，并且连接8个从机，手机连接S130设备，控制其他8个设备。
2.分析
学习nrf51822主机和从机通信，
3.平台：
协议栈版本：SDK10.0.0
编译软件：keil 5.12
硬件平台：nrf51822最小系统
例子：SDK 10.0.0\examples\ble_peripheral\ble_app_uart\pca10028\s110\arm4 从机例子
SDK10.0\examples\ble_central_and_peripheral\experimental\ble_app_hrs_rscs_relay\pca10028\s130\arm4 做主机
4步骤.
首先把主从一体的设备里面的，hrs和rscs服务屏蔽掉。把串口服务移植进去。把ble_nus.c假如工程
并假如对应的路径 和 头文件
在main文件添加如下代码：
static ble_nus_t m_nus; /**< Structure to identify the Nordic UART Service. */
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */
/**@snippet [Handling the data received over BLE] */
static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
{
// if(p_data[0] == 0x55)
// {
// Syn_gap_params_init();
// }
uint8_t data_array;
if(p_data[1])
{
if(m_conn_handle_nus_c[1] != BLE_CONN_HANDLE_INVALID)
{
data_array = 1 ;
ble_nus_c_string_send(&m_ble_nus_c[1], &data_array, 1);
}else
{
data_array = 0 ;
ble_nus_c_string_send(&m_ble_nus_c[1], &data_array, 1);
}
}
}
/**@brief Function for initializing services that will be used by the application. */
static void services_init(void)
{
uint32_t err_code;
ble_nus_init_t nus_init;
memset(&nus_init, 0, sizeof(nus_init));
nus_init.data_handler = nus_data_handler;
err_code = ble_nus_init(&m_nus, &nus_init);
APP_ERROR_CHECK(err_code);
}
再把变为如下ble_evt_dispatch()函数功能变为如下：
static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
{
uint16_t conn_handle;
uint16_t role;
/** The Connection state module has to be fed BLE events in order to function correctly
* Remember to call ble_conn_state_on_ble_evt before calling any ble_conns_state_* functions. */
ble_conn_state_on_ble_evt(p_ble_evt);
pm_ble_evt_handler(p_ble_evt);
// The connection handle should really be retrievable for any event type.
conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
role = ble_conn_state_role(conn_handle);
// Based on the role this device plays in the connection, dispatch to the right applications.
if (role == BLE_GAP_ROLE_PERIPH)
{
// Manages peripheral LEDs.
on_ble_peripheral_evt(p_ble_evt);
ble_advertising_on_ble_evt(p_ble_evt);
ble_conn_params_on_ble_evt(p_ble_evt);
// Dispatch to peripheral applications.
ble_nus_on_ble_evt (&m_nus, p_ble_evt);
// ble_hrs_on_ble_evt (&m_hrs, p_ble_evt);
// ble_rscs_on_ble_evt(&m_rscs, p_ble_evt);
} else if ((role == BLE_GAP_ROLE_CENTRAL) || (p_ble_evt->header.evt_id == BLE_GAP_EVT_ADV_REPORT))
{
/** on_ble_central_evt will update the connection handles, so we want to execute it
* after dispatching to the central applications upon disconnection. */
if (p_ble_evt->header.evt_id != BLE_GAP_EVT_DISCONNECTED)
{
on_ble_central_evt(p_ble_evt);
}
// if (conn_handle == m_conn_handle_hrs_c)
// {
// ble_hrs_c_on_ble_evt(&m_ble_hrs_c, p_ble_evt);
// ble_db_discovery_on_ble_evt(&m_ble_db_discovery_hrs, p_ble_evt);
// }
// else if (conn_handle == m_conn_handle_rscs_c)
// {
// ble_rscs_c_on_ble_evt(&m_ble_rsc_c, p_ble_evt);
// ble_db_discovery_on_ble_evt(&m_ble_db_discovery_rsc, p_ble_evt);
// } for(uint8_t i = 0;i<8;i++)
{
if (conn_handle == m_conn_handle_nus_c[i])
{
ble_nus_c_on_ble_evt(&m_ble_nus_c[i], p_ble_evt);
ble_db_discovery_on_ble_evt(&m_ble_db_discovery_nus[i], p_ble_evt);
}
}
// If the peer disconnected, we update the connection handles last.
if (p_ble_evt->header.evt_id == BLE_GAP_EVT_DISCONNECTED)
{
on_ble_central_evt(p_ble_evt);
}
}
}
OK，到这里把串口服务移植到了进去 把hrs和rscs给移掉了 。。。。。
用lightblue 连接，现在显示的是串口的服务了。。。。
