hello folks
I'm triyng to send a simple vector with ble but what i receive was different.
aniway what i want to send is something like this:
dati[0]=0;
dati[1]=0;
dati[2]=0;
dati[3]=0;
dati[4]=0;
dati[5]=0;
dati[6]=0;
dati[7]=0;
dati[8]=0;
dati[9]=0;
and the function i used was :
err_code = ble_os_value_update(&m_our_service,*dati);
APP_ERROR_CHECK(err_code);
in my_service.c I initialize this function as:
uint32_t ble_os_value_update(ble_os_t * p_os, uint8_t custom_value)
{
// NRF_LOG_INFO("In ble_os_custom_value_update. \r\n");
if (p_os == NULL)
{
return NRF_ERROR_NULL;
}
uint32_t err_code = NRF_SUCCESS;
ble_gatts_value_t gatts_value;
// Initialize value struct.
memset(&gatts_value, 0, sizeof(gatts_value));
gatts_value.len = sizeof(uint8_t);
gatts_value.offset = 0;
gatts_value.p_value = &custom_value;
if (gatts_value.p_value == NULL)
{
gatts_value.len==NULL;
}
// Update database.
err_code = sd_ble_gatts_value_set(p_os->conn_handle,
p_os->os_value_handles.value_handle,
&gatts_value);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
// Send value if connected and notifying.
if ((p_os->conn_handle != BLE_CONN_HANDLE_INVALID))
{
ble_gatts_hvx_params_t hvx_params;
uint16_t len = 10;
memset(&hvx_params, 0, sizeof(hvx_params));
hvx_params.handle = p_os->os_value_handles.value_handle;
hvx_params.type = BLE_GATT_HVX_NOTIFICATION;
hvx_params.offset = gatts_value.offset;
hvx_params.p_len = &len;
hvx_params.p_data = gatts_value.p_value;
err_code = sd_ble_gatts_hvx(p_os->conn_handle, &hvx_params);
}
else
{
err_code = NRF_ERROR_INVALID_STATE;
}
return err_code;
}
but what i receive was :
in fact obviusly 00-CC-2D-00-20-00-00-00-00-10 is different from thw 10 zero vector i send....so what's wrong?
can someone help me?
