https://devzone.nordicsemi.com/f/nordic-q-a/34958/help-needed-on-finding-twi-deviceHi Env: keil uvision 5 and SDK 9 and custome breakoutboard for nRF51822 (PTR5518: no external crystal) and no SD. I am trying doing the first steps in twi over nRF51822, in a custom breakoutboard (PTR5518) without external crystal. I have a TMP102en-USTelligent Community 13Thu, 31 May 2018 13:55:57 GMThttps://devzone.nordicsemi.com/thread/134209?ContentTypeID=1Thu, 31 May 2018 13:55:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c3605d0b-ccdc-4b6c-bad9-a18898a3ba75Alex Co<p>Sorry, my fault...</p> <p></p> <p>It should be:</p> <p></p> <p>err_code = nrf_drv_twi_tx(&amp;twi2, i, &amp;dummy_data, 1, false);<br /> if(err_code == NRF_SUCCESS)<br /> {<br />&nbsp; &nbsp;device_found = true;<br />&nbsp; &nbsp;break;<br /> }</p> <p></p> <p>because I am using blocking calls</p> <p>It is found now on 0x48!</p><div style="clear:both;"></div>