https://devzone.nordicsemi.com/f/nordic-q-a/21075/nrf51-two-app-for-bootloader-without-softdeviceHi, Forum. I want to make uart_bootloader without softdevice. for this, I want to prepare keil project. I tryed this but I have some problems. Basically, My bootlader codes: #define APPLICATION_BASE_ADDRESS 0x14000 typedef void (*application_main_ten-USTelligent Community 13Mon, 10 Apr 2017 07:40:29 GMThttps://devzone.nordicsemi.com/thread/82348?ContentTypeID=1Mon, 10 Apr 2017 07:40:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:99305854-615d-4fa3-979a-d8504e23458eHung Bui<p>@Oguz: You don&#39;t have to do anything, when you switch from bootloader to application simply set bootloader_active = 0 and then branch to application. The interrupts will be forwarded to the application.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/82347?ContentTypeID=1Fri, 07 Apr 2017 11:56:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3026cc10-97a1-4c95-b1f2-8cd7e5a63d50Oguz Emre<p>I do not know &quot;asm&quot;. Can you help me? I do not know how to use interrupt.c. Thank you</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/82346?ContentTypeID=1Tue, 04 Apr 2017 13:33:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e6986ce9-3af5-4283-adca-2b54defb31a6Hung Bui<p>Hi Oguz,</p> <p>In your bootloader, you also need to forward the vector table so that the interrupt is forwarded to the application&#39;s vector table not the bootloader&#39;s one.</p> <p>You can have a look at <a href="https://devzone.nordicsemi.com/question/52909/nrf51-bootloader-without-softdevice-sdk-810/">this</a>.</p><div style="clear:both;"></div>