https://devzone.nordicsemi.com/f/nordic-q-a/64127/twi-manager-read-too-many-bytesHi despite trying 3 different approaches (even using the Nordic driver lis2dh12 on a blinky-based project and installing Segger Studio to step/debug into the library code) I keep stumbling over the same problem. I try to read 1 byte from LIS2DH sensoren-USTelligent Community 13Fri, 24 Jul 2020 14:54:14 GMThttps://devzone.nordicsemi.com/thread/261636?ContentTypeID=1Fri, 24 Jul 2020 14:54:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:67a78c16-d52f-4247-9257-e1f13a4bb013Stian R&#248;ed Hafskjold<p>Haha. I&#39;m glad I could help :) Have a nice weekend too</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/261631?ContentTypeID=1Fri, 24 Jul 2020 14:35:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5053720f-893e-4018-a4be-67cb70adc605peterz<p>GOT ME - one more time, I&#39;m so stupid (the hardest bugs are the ones in my head)<br />thanks a lot - have a nice weekend</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/261623?ContentTypeID=1Fri, 24 Jul 2020 14:02:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:57f475f1-354e-4dee-8b8c-d696c04996c6Stian R&#248;ed Hafskjold<p>It looks normal. The first 0x33 is not the data returned by the sensor, it is the addr + read bit.</p> <p>Please have a look at table 17 in the LIS2DH data sheet.</p> <p>This is what is happening in your oscilloscope plot:</p> <ul> <li>Start condition</li> <li>Addr + Write bit (0x32)</li> <li>Register address</li> <li>Repeated start</li> <li>Addr + Read bit (0x33)</li> <li>Received data (0x33)</li> <li>NACK(end of data)</li> <li>Stop condition</li> </ul><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/261558?ContentTypeID=1Fri, 24 Jul 2020 10:27:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b07459b0-be89-428b-bb2f-58c61148131cpeterz<p>sorry, I forgot to say: I use 52840 on a custom board.</p> <p>And in the meantime I tried<br />#define TWI0_USE_EASY_DMA 1<br />but that did not help either</p><div style="clear:both;"></div>