https://devzone.nordicsemi.com/f/nordic-q-a/36391/how-to-open-and-close-the-all-interruptsHi, There are some codes donot want to be interrupted. Before the execution of those codes, I want to close the all interrupts, after the execution, I want to open the all interrupts, How do I realize this function?en-USTelligent Community 13Sun, 15 Jul 2018 13:16:20 GMThttps://devzone.nordicsemi.com/thread/140133?ContentTypeID=1Sun, 15 Jul 2018 13:16:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dbfad815-acd6-479f-9152-f61249a1714ctianbing357<p>Thank you very much.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/140012?ContentTypeID=1Fri, 13 Jul 2018 07:22:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:93d3e8ac-a51e-4249-86ef-f2a8af259581Adrian Eggenberger<p>Hi</p> <p>You may use &quot;__enable_irq&quot; and &quot;__disable_irq&quot; to disable/enable all interrupts. I would also recommend to have a look at this page from the ARM documentation that gives some background for this topic (<a title="Enabling interrupts using CPS instructions and MSR instructions" href="http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dai0321a/BIHBFEIB.html" rel="noopener noreferrer" target="_blank">Link</a>).</p> <p>Nordic has in there SDK an slightly enhanced version of these functionality that allows nested calls of disable/enable IRQ. These are called &quot;app_util_disable_irq&quot; and &quot;app_util_enable_irq&quot;.</p> <p>Regards Adrian</p><div style="clear:both;"></div>