https://devzone.nordicsemi.com/f/nordic-q-a/11285/code-size-overflowed-for-dfu-bootloaderHi Experts, I modified a DFU bootloader from SDK 9.0 for nrf51822_xxAA chip. However, I encounter code size overflow problem when building it. I found the ROM1 configuration should be 0x3c000 as start and 0x3c00 as size. The code size is 19188, whichen-USTelligent Community 13Wed, 13 Jan 2016 05:55:28 GMThttps://devzone.nordicsemi.com/thread/42448?ContentTypeID=1Wed, 13 Jan 2016 05:55:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c1f45679-7a8b-41ff-b6e5-8d8da4a4bbc2zhao<p>The Problem can be solved by using -O3 option, so I close it.</p><div style="clear:both;"></div>