https://devzone.nordicsemi.com/f/nordic-q-a/9690/how-can-i-jump-to-flash-address-nrf51422Hi, I have problem while jumping to another application (address) in flash code region. I placed first app at 0x00000000 address and the second at 0x00002800 what I want to do is just to jump from first addess to second and execute the second appen-USTelligent Community 13Tue, 13 Oct 2015 00:03:46 GMThttps://devzone.nordicsemi.com/thread/35854?ContentTypeID=1Tue, 13 Oct 2015 00:03:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a7cf89be-ded2-4ce7-b1bf-8f2837c75e6eRK<p>Look at the generated assembler. Depending on which compiler you are using, writing what you wrote with no &#39;naked&#39; keyword and no extended syntax may not actually start with start_addr in R0 but add a preamble which uses it. The compiler is also at liberty to assume start_addr isn&#39;t used at all and not bother to set it.</p> <p>You&#39;d be better off writing this with the extended syntax, something like appending <code>: : r (start_addr)</code> and then using %0 instead of R0 in the code</p><div style="clear:both;"></div>