case about nRF52840 pair and bond time to long

[peter.min]

Hi,

1. I modified a pairing and binding example, requiring the input of a fixed pairing and binding password 123456. When I tested it, I found that it took about 1 minute before the pairing was successful
2. What parameter causes the 1-minute wait for pairing and binding?

3.The key changes are as follows:

static void device_manager_init(void)
{
uint8_t passkey[] = DEFAULT_PASS_KEY; 
ble_opt_t m_static_pin_option;
m_static_pin_option.gap_opt.passkey.p_passkey= passkey;
uint32_t err_code=sd_ble_opt_set(BLE_GAP_OPT_PASSKEY,&m_static_pin_option);
APP_ERROR_CHECK(err_code);
}

Example code is as follows:

6431.ble_app_hrs_yes_no.zip

Thank you for all your assistance.
Kind regards,
Peter.Min

[Vidar Berg]

Hi,

The project you uploaded does not set a static passkey. Is it a different project you're seeing the 1 minute delay with?

Kind regards,

Vidar

[peter.min]

Hi Vidar Berg,

1. What can repeat the problem is the following project.
2. Test the phone for any Android.

7268.ble_app_hrs_yes_no.zip

Thank you for all your assistance.
Kind regards,
Peter.Min

[Vidar Berg]

Hi Peter.Min,

I didn't observe any noticeable delay when I tried your project. Please try the attached hex file and see if you get the same result.

6558.ble_app_hrs_pca10056_s140.hex

Kind regards,

Vidar

[peter.min]

Hi Vidar Berg,

1. I have found the problem and fixed it.

2. Adjust the connection interval to 20-40ms

Thank you for all your assistance.
Kind regards,
Peter.Min