https://devzone.nordicsemi.com/f/nordic-q-a/54956/copying-vector-table-to-ram-unknown-function-at-0x00000000I am using the nRF52840 DK with the s140 softdevice and am trying to copy the interrupt vector table to RAM to modify interrupts during run time. I run the following function at the beginning of main() But I run into problems when running ble_stack_initen-USTelligent Community 13Wed, 27 Nov 2019 21:03:10 GMThttps://devzone.nordicsemi.com/thread/222460?ContentTypeID=1Wed, 27 Nov 2019 21:03:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c2660953-5819-4016-a39d-f22097a4f300clansdale@boston-engineering.com<p>Worked like a charm! Thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/222452?ContentTypeID=1Wed, 27 Nov 2019 18:40:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:201447f7-1bab-44b2-8aef-664322570d16Turbo J<p>Your vector_table_ram most likely has wrong alignment. VTOR requires unusual 128 byte alignment instead of the usual 4 bytes.</p> <p>Try (if using gcc):</p> <p><pre class="ui-code" data-mode="c_cpp">static uint32_t vector_table_ram[VECTOR_TABLE_SIZE] __attribute__ ((aligned (128)));</pre></p><div style="clear:both;"></div>