Good day, Support Team,
I have a question regarding BlueNRG-1 simultaneous master/slave mode support.
As I see from documentation "BlueNRG-1, BlueNRG-2 BLE stack programming guidelines.pdf" - BlueNRG-1 can support master/slave mode to be connected to the phone as peripheral device and at the same time can scan and connect as master to another BLE peripherals.
In my case I need to develop BLE device, which will communicate as BLE slave peripheral with mobile phone and at the same time will interact as BLE master with BLE peripheral with temperature/humidity sensor.
Main BLE device should periodically connect to BLE peripheral to read temperature/humidity values, and use them in it's program and also send temperature/humidity values to mobile phone.
I have tried to enable simultaneous master/slave mode, but can only scan or connect to BLE peripheral (as master) or connect to phone (as slave) at a time.
I used this code to configure GAP:
/* GAP Init */
aci_gap_init(GAP_PERIPHERAL_ROLE | GAP_CENTRAL_ROLE, ...);
I am using aci_gap_start_general_discovery_proc() to scan for BLE devices, aci_gap_proc_complete_event() to check for the end of BLE scanning process and hci_le_advertising_report_event() for getting the results of scanning.
I use aci_gap_create_connection() to connect from main BLE master device to BLE peripheral.
I also found one setting for BLE stack mode (in "bluenrg1_hal.h"):
/**
* Select the BlueNRG roles and mode configurations.\n
* @li Mode 1: slave or master, 1 connection, RAM1 only (small GATT DB)
* @li Mode 2: slave or master, 1 connection, RAM1 and RAM2 (large GATT DB)
* @li Mode 3: master only, 8 connections, RAM1 and RAM2.
*/
#define CONFIG_DATA_ROLE (0x2D)
And I don't see the master/slave simultaneous mode here...
I also checked that in my project:
#define MIN_NUM_LINK is set to 2
But I can't simultaneously connect to master/slave device from phone and scan by master/slave device for another slave devices or to connect to another slaves from master/slave device.
Can you please clarify, does BlueNRG-1 really support master/slave mode and what settings I have to make to enable it?
What functionality should I get in simultaniously master/slave mode?
- Advertising and scan can be both available at the same time?
- Connection to slave from master/slave device, and connection to phone from master/slave device can be both available at the same time?
In advance thanks,
Evgeny Boltunov
