About central pair issues

[daoms]

Hi,

I'm developing a CENTRAL using 52832 to connect a earphone.

1.When I enable LESC, the pair fails with the AUTH_NOT_SUPP error. Why ?

What I think if the earphone doesn't support LESC, legacy pair will take place, pair should still complete.

2.When CENTRAL disconnects from a bounded connection and erased the bond info(earphone still keep the bond info), it cannot make the connection again. There will be error=0x3e immediately happens on every connect attempt.

How to modify to CENTRAL code to adapt this case. When I use phone APP nRF Connect, there is no such problem.

Tks for any advices!

[daoms]

And actually, the peer device support LESC feature.

But when CENTRAL enables LESC, app reboots or fatal error.

[Amanda Hsieh]

Hi, 

What did you modify the ble_app_hrs_c? 

Do you test with ble_app_hrs on the peripheral device?

Do you have the same issue on SDK17?

I recommend to define DEBUG in the project as this thread suggested. 

-Amanda H

[daoms]

The fact is when DEBUG enabled ,app_error_save_and_stop gives out nothing.

[Amanda Hsieh]

Hi, 

Sorry, it's my loss. Also, need to set the optimization level to 0. Please follow this guide.

After that you can add a breakpoint in app_error_handler() (or where app_error_fault_handler is called), and you can find information about

error_info_t error_info =
{
    .line_num    = line_num,
    .p_file_name = p_file_name,
    .err_code    = error_code,
};

-Amanda H.