read CRC from E-paper Displayhttps://devzone.nordicsemi.com/f/nordic-q-a/83582/read-crc-from-e-paper-displayHey, I try to read the CRC from E-Paper display series 1.02 inch (GDEW0102L4f) with no success (I&#39;m working with nRF52833 Development Kit) My code and the official Goodisplay data sheet are included Thanks!en-USTelligent Community 13Wed, 12 Jan 2022 09:59:21 GMTRE: read CRC from E-paper Displayhttps://devzone.nordicsemi.com/thread/347330?ContentTypeID=1Wed, 12 Jan 2022 09:59:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c17207c2-0242-4f30-a4d7-14cc448ac531Stian R&#248;ed Hafskjold<p>Hi,</p> <p>What do you mean by &quot;no success&quot;. What is the output of NRFX_LOG_INFO?</p> <p>I believe you have to declare the lsb, msb and rx variables as static. If not they will be lost as soon as the read_crc function returns, and not available for the logging module. Like this:</p> <pre>static uint8_t rx;<br />static uint8_t msb;<br />static uint8_t lsb;</pre><div style="clear:both;"></div>