BLE OTA hex files example

RE: BLE OTA hex files example

Amanda Hsieh — Tue, 08 Feb 2022 09:08:51 GMT

Hi,

If you program bootloader and ble_app_hrs, you can hold button 4 during startup makes the device enter DFU mode. The bootloader configures button 4 pin as an input on startup, then it reads its input state to determine whether it should enter DFU mode or proceed to boot the main app. Are you looking for that? If so, you can take a look at BLE Secure DFU Bootloader.

2. Do you erase the kit before programming ble_app_hrs? I can not reproduce the issue on nRF52DK. Also, see the Button assignments: BSP BLE Button Assignments.

-Amanda

RE: BLE OTA hex files example

dilbert168 — Mon, 07 Feb 2022 21:33:15 GMT

I actually looks for code start the OTA (DFU) process by jumping from App into Bootloader.

e.g. by pressing the Button in Application

RE: BLE OTA hex files example

dilbert168 — Mon, 07 Feb 2022 16:38:44 GMT

2. I tried build and loaded the <InstallFolder>\examples\ble_peripheral\ble_app_hrs.

onto nRF52-DK board using SEGGER.

but when pressing any Button, the debugger will stop at "NRF_BREAKPOINT_COND"

Checking the code in main() bsp_event_handler(), I don't see any handling for KEY

RE: BLE OTA hex files example

Amanda Hsieh — Mon, 07 Feb 2022 07:37:32 GMT

Hi,

1. It needs to program the Bootloader settings page, then the bootloader can boot the application. For information on creating a valid bootloader settings page, see Generating bootloader settings.

2. See the Heart Rate Application example under <InstallFolder>\examples\ble_peripheral\ble_app_hrs.

Regards,
Amanda