Secure DFU example add interrupt

RE: Secure DFU example add interrupt

Hung Bui — Wed, 22 Dec 2021 09:16:33 GMT

Hi Jose,
I would suggest to get familiar with the bsp library in a simple application before you move to the bootloader. Please try to add button handling in a small easy application for example : examples\peripheral\blinky .

RE: Secure DFU example add interrupt

joseesotolongo — Mon, 20 Dec 2021 16:30:37 GMT

I have enabled the button in the sdk_config but now I am getting overlapping sections in the memory. I'm not sure how to fix this issue.

EDIT: So I have been able to figure out the issue is the bsp_init() function that I call. Since there is already an existing ISR in the program, I am attempting to override the current one with the new one. But now I do not know how to add an interrupt to the existing ISR or how to replace the current ISR.

RE: Secure DFU example add interrupt

Hung Bui — Mon, 20 Dec 2021 10:07:19 GMT

Hi Jose,

You would need to include app_button.c and enable app_button (BUTTON_ENABLED)in the sdk_config.h

Please refer to other examples in the SDK for example ble_app_hrs .

RE: Secure DFU example add interrupt

joseesotolongo — Fri, 17 Dec 2021 19:40:53 GMT

I have been able to add the bsp_event_handler but for some reason I get this error.

1> /usr/share/segger_embedded_studio_for_arm_5.68/gcc/arm-none-eabi/bin/ld: Output/Release/Obj/secure_bootloader_uart_mbr_pca10040/bsp.o: in function `bsp_init':
1> /home/dex/_ble_central_reference_nrfsdk/nRF5SDK160098a08e2/components/libraries/bsp/bsp.c:504: undefined reference to `app_button_init'
1> /usr/share/segger_embedded_studio_for_arm_5.68/gcc/arm-none-eabi/bin/ld: /home/dex/_ble_central_reference_nrfsdk/nRF5SDK160098a08e2/components/libraries/bsp/bsp.c:511: undefined reference to `app_button_enable'
Build failed

It keeps giving an error saying it can't find app_button_enable. I am not quite sure what is wrong. This error is usually given at the linking stage of building.

RE: Secure DFU example add interrupt

Hung Bui — Fri, 17 Dec 2021 13:25:57 GMT

Hi Jose,

I would suggest to have a look and test the ble_app_hrs example. In that the button press is handled as an interrupt. When a button is pressed you will received a call back to bsp_event_handler().

If you don't want to use the bsp module, you can use the nrf_drv_gpiote module directly. Please have a look at the \examples\peripheral\pin_change_int\ example.