TWI. RXDREADY event signaled, TXDSENT - not.https://devzone.nordicsemi.com/f/nordic-q-a/24239/twi-rxdready-event-signaled-txdsent---notI am trying to communicate with DS1307 (RTC) using TWI on nRF51822. I have configured the pins, address (0x68 fixed for DS1307), frequency and enabled TWI. Now I am about to read the register 0x00 of the slave (DS1307) I suppose I should start transmissionen-USTelligent Community 13Fri, 11 Aug 2017 10:32:07 GMTRE: TWI. RXDREADY event signaled, TXDSENT - not.https://devzone.nordicsemi.com/thread/95434?ContentTypeID=1Fri, 11 Aug 2017 10:32:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:df8a29e5-9196-4768-bb04-7d13cc69da3fanv<p>Aryan thank you so much!</p><div style="clear:both;"></div>RE: TWI. RXDREADY event signaled, TXDSENT - not.https://devzone.nordicsemi.com/thread/95433?ContentTypeID=1Fri, 11 Aug 2017 10:23:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:70899698-f000-4432-a17c-fbdab15b2639Susheel Nuguru<p>I use Saleae logic analyzer and you can get it from 100$.</p><div style="clear:both;"></div>RE: TWI. RXDREADY event signaled, TXDSENT - not.https://devzone.nordicsemi.com/thread/95432?ContentTypeID=1Fri, 11 Aug 2017 10:11:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3fbc7854-c438-4116-918a-d78eb0172e33anv<p>Thank you Aryan! I have not got any logical analyzer, but I see I need it anyway. Could you please suggest me some inexpensive type? What should be taken into account? Maybe I would better publish a new question...</p><div style="clear:both;"></div>RE: TWI. RXDREADY event signaled, TXDSENT - not.https://devzone.nordicsemi.com/thread/95431?ContentTypeID=1Fri, 11 Aug 2017 07:03:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3f1c3dfd-84ba-4fc2-a9fe-711e49698011Susheel Nuguru<p>you can connect a logic analyzer or similar to the TWI pins and sniff the transaction. No just the ACK from the peer does not give RXDREADY event. RXDREADY is received only if data is read from the sensor after explicitly requesting it.</p><div style="clear:both;"></div>RE: TWI. RXDREADY event signaled, TXDSENT - not.https://devzone.nordicsemi.com/thread/95430?ContentTypeID=1Thu, 10 Aug 2017 13:19:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8b0f58ce-2122-4ebf-98f8-7ff57e62455canv<p>How can I check it? And how could it happen, that RXDREADY has been signaled?</p><div style="clear:both;"></div>RE: TWI. RXDREADY event signaled, TXDSENT - not.https://devzone.nordicsemi.com/thread/95429?ContentTypeID=1Thu, 10 Aug 2017 13:10:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:42f20b07-68c3-4f8b-a076-8ee45a5137e2Susheel Nuguru<p>TXDSENT is only signaled if the peer has ACKed the transmitted packet. Are you use that the byte sent is ACKed by DS1307?</p><div style="clear:both;"></div>