I am really puzzled by this and although I've read all the relevant answers in the Q/A I'm still unable to do the following:
- do non-selective scanning with central device
- accept the first peripheral device (which has the service I need) and add it to whitelist
- after central restart load the whitelist and do selective scanning
What I want to achieve with this is that only one peripheral can be connected to central. I understand I need to limit how large the whitelist is - in my case 1.
For this discussion let us all review the ble_app_uart_c example which seems like it implements whitelist (I can't get it to work though - peripheral got connected, then after central restart, whitelist is empty hence it goes into non-selective scannign again).
My question (related to example):
- after non-selective scanning where exactly is the device address stored to whitelist and saved to flash?
In the example in function
scan_start()I can see the whitelist gets created withdm_whitelist_create()but does this function load the whitelist from flash? This would be necessary so selective scanning would be working (after a peripheral's address was added to whitelist in non-selective scanning in previous power-cycle).
- is the example missing anything which would prevent it from working with whitelist?
