https://devzone.nordicsemi.com/f/nordic-q-a/83125/nrf52832-spi_transceive-raise-error-instruction-access-violationHi Nordic, when I run a spi sample, get a error as below: the source code: prj.conf:en-USTelligent Community 13Mon, 03 Jan 2022 12:18:25 GMThttps://devzone.nordicsemi.com/thread/345652?ContentTypeID=1Mon, 03 Jan 2022 12:18:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d0ac6e14-371c-4f37-aad8-35c1b323e690scottwan<p>Hi&nbsp;<span>H&aring;kon,</span></p> <p><span>I am sorry the issue is raised by line&nbsp;&nbsp;#40, the variable &#39;tx_buffer&#39; is not initiate correctly.</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/345564?ContentTypeID=1Mon, 03 Jan 2022 06:45:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7a800e19-7813-48ee-a7ad-d5671bb30f72H&#229;kon Alseth<p>Can you please post your full log?</p> <p>Have you enabled SPI_2 in DTS?</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/345558?ContentTypeID=1Mon, 03 Jan 2022 02:55:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c0ae8c1f-dd07-427b-997b-d6b72344726escottwan<p>Hi,</p> <p><span>CONFIG_MAIN_STACK_SIZE=4096 does NOT work. same error as before.</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/345071?ContentTypeID=1Mon, 27 Dec 2021 08:45:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a1e885b4-91cd-40e2-8df5-35b1f3213c07H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>Based on the MPU fault log, it might indicate that the stack size for the main thread is too low.</p> <p>Could you try adjusting this via CONFIG_MAIN_STACK_SIZE=4096 and see if this helps?</p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>