Hello,
I am having an working application with S120 and S110; master and slave application. Now I need the master and slave functionality on the same board and using S130 softdevice 1.0.0v and with 9.0 SDK with custom board.
I referred the ble_app_hrs_rscs_relay project and in my application on power up, the device will work in slave mode. I am using NUS service and testing the peripheral activity on the Master Control Panel and getting the error No CCCD discovered, cannot enable services when I try to enable services in MCP.
This is the code snippet to add service and characteristic for peripheral role:
ble_uuid_t service_uuid;
ble_uuid128_t base_uuid = BLE_UUID_RES_BASE_UUID;
service_uuid.uuid = 0x0001;
// Initialize the service structure.
p_sos_v->conn_handle = BLE_CONN_HANDLE_INVALID;
p_sos_v->data_handler = p_sos_v_init->evt_handler;
p_sos_v->is_notification_enabled = false;
// add custom base UUID
err_code = sd_ble_uuid_vs_add(&base_uuid, &p_sos_v->uuid_type);
if(err_code != NRF_SUCCESS)
{
return err_code;
}
service_uuid.type = p_sos_v->uuid_type;
// Add the service
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
&service_uuid,
&p_sos_v->service_handle);
if(err_code != NRF_SUCCESS)
{
return err_code;
}
// Add the RX Characteristic.
err_code = sos_v_rx_characteristic_add(p_sos_v, p_sos_v_init); // send from slave
if (err_code != NRF_SUCCESS)
{
return err_code;
}
Characteristic code snippet:
static uint32_t sos_v_rx_characteristic_add(ble_sos_v_t * p_sos_v,
const ble_sos_v_init_t * p_sos_v_init)
{
ble_gatts_char_md_t char_md;
ble_gatts_attr_md_t cccd_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&cccd_md, 0, sizeof(cccd_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&cccd_md.write_perm);
cccd_md.vloc = BLE_GATTS_VLOC_STACK;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.notify = 1;
char_md.char_props.read = 0;
char_md.char_props.write = 0;
char_md.char_props.write_wo_resp = 0;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = &cccd_md;
char_md.p_sccd_md = NULL;
ble_uuid.type = p_sos_v->uuid_type;
ble_uuid.uuid = BLE_UUID_NUS_RX_CHARACTERISTIC;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 1;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = BLE_NUS_MAX_RX_CHAR_LEN;
return sd_ble_gatts_characteristic_add(p_sos_v->service_handle,
&char_md,
&attr_char_value,
&p_sos_v->sos_v_rx_handles);
}
Does anyone know the reason for the error in MCP or am I missing any configurations to be done to work with S130?
Regards, Sowmya
