WDT & Bootloader: Multiple definitions of `WDT_IRQHandler'

Question

So I'm trying top add a bootloader+DFU to allow f/w updates via UART on my custom board. 
 I'm already successfully using WDT in my app. Now I'm looking down the rabbithole of trying to integrate code from docs and/or examples into my own... 
 Using the example secure_bootloader_uart as my template for DFU, I've added the nRF-Bootloader files & updated the user include directories. But it seems that the bootloader WDT is duplicating driver WDT 
 nrf_bootloader_wdt.o: In function `WDT_IRQHandler': nrf_bootloader_wdt.c:73: multiple definition of `WDT_IRQHandler' \modules
rfx\drivers\src/nrfx_wdt.c:61: first defined here 
 I'm not even sure if I need WDT support? Because my custom board has no buttons or LEDs I'll be using sd_power_gpregret_set() followed by a NVIC_SystemReset() - won't that clear the WDT anyway?

Hung Bui · Accepted Answer

Hi Nick, 
 Sorry it's my mistake. I was thinking about the application address that you don't need to modify on the bootloader. The only thing you need to modify is to change from using S132 header to S112 header. In particular you need to change these to s112: And change this to S112: 
 
 I noticed that you set the FLASH_START address to 0x19000. It's not correct, keep all of them as they are: 
 If you still have issue, please give us more info on how it crashed and have you checked if it crashed in the bootloader or in the application.

WDT & Bootloader: Multiple definitions of `WDT_IRQHandler'

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