https://devzone.nordicsemi.com/f/nordic-q-a/76332/nrf52832-zephyr-critical-section-disable-system-interruptsI am using an nrf52832 DK with Zephyr and I have a component that require a block of code to run uninterrupted. Specifically I am using HX711 with four load cells, and the serial protocol for reading needs protection from system interrupts. This is theen-USTelligent Community 13Tue, 15 Jun 2021 10:10:30 GMThttps://devzone.nordicsemi.com/thread/315343?ContentTypeID=1Tue, 15 Jun 2021 10:10:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b56c09d-0f76-494a-997c-f405da7bb2b5Simon<p>It seems like using <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.5.1/zephyr/reference/kernel/other/interrupts.html#c.irq_lock">irq_lock()</a>/<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.5.1/zephyr/reference/kernel/other/interrupts.html#c.irq_unlock">irq_unlock()</a>&nbsp;is the correct way to go about disabling interrupts. Check out the section&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.5.1/zephyr/reference/kernel/other/interrupts.html#preventing-interruptions">Preventing Interrupts</a>&nbsp;for more information about these calls, e.g. the locking only applies for the calling thread.&nbsp;The section also presents another approach: Disabling specific IRQs.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/315222?ContentTypeID=1Mon, 14 Jun 2021 16:51:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3829874b-6921-4783-8941-3cc480f9883byayembedded<p>I did some more experimenting and I have surrounded my critical section code with irq_lock() and irq_unlock()</p> <p>Is that enough to accomplish what I was looking for?</p><div style="clear:both;"></div>