nRF52832,can not Pairing and binding.SDK13.0.0,base onble_app_hids_keyboard example

[Mainland Lu]

hi,i have a question.

    nRF52832,can not Pairing and binding.SDK13.0.0,base onble_app_hids_keyboard example.

    It can be paired and bounded before. but now can't pair and bind. i had try some phones but can't work.

    I export the hex file and Compare two files. showing just below! very strange!

    there are two contents are different! but i didn't change anything about this two  address contents in my code project.

[Sigurd]

Hi,

The bond info is stored in flash. So after a device has been bonded, the content of the flash will be changed. This is expected.

To delete the bond info with the ble_app_hids_keyboard example, then reset the device while pressing Button 2.

[Mainland Lu]

Hi,sigurd.

i debug,and the event just below happen

so in this case how can i deal with this situation?

case PM_EVT_ERROR_UNEXPECTED:
{

        // Assert.
        APP_ERROR_CHECK(p_evt->params.error_unexpected.error);
}

[Sigurd]

Hi,

Mainland Lu said:

So As mentioned above,why the UCIR address concent has been change?

Are you using a bootloader ? The start address of the bootloader is usually stored in the UICR.NRFFW[0] register

Mainland Lu said:

PM_EVT_ERROR_UNEXPECTED

Are you able to reproduce this ? What is value of p_evt->params.error_unexpected.error ?

 

 

[Mainland Lu]

yes,my bootloader address is 0x78000 .and the p_evt->params.error_unexpected.error is 0x03

[Sigurd]

Hi,

Make sure you erase the chip completely when you test. There could be that earlier data stored can cause an issue when bonding is stored.

The peer_manager in the app will store bond data right below the bootloader address if the bootloader is present, or else it will use the pages at the end of flash.

You could also test if it makes any difference to set allow_repairing = true in the call to pm_conn_sec_config_reply() in pm_evt_handler() in main.c

If you run into this issue while debugging, it would be useful to look at the callstack leading up to this issue.