https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2155021#M58680 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/253902">@sam_wu_7911</a>&nbsp;</P> <P>May i ask is your target also lpc55s36 board?</P> <P>BR</P> <P>Harry</P> Wed, 20 Aug 2025 07:31:54 GMT Harry_Zhang 2025-08-20T07:31:54Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2153982#M58675 <P>Hi there,</P><P>I'm trying to implement the flow of hotjoin with the I3C bus. However, when the target triggers the hot join address (0x02), the SCL stop at the 8th clock tick. No clock for R/W and ACK, do you have any idea?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="螢幕擷取畫面 2025-08-19 100931.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/352879i4FEB675CE7F1400B/image-size/large?v=v2&amp;px=999" role="button" title="螢幕擷取畫面 2025-08-19 100931.png" alt="螢幕擷取畫面 2025-08-19 100931.png" /></span></P> Tue, 19 Aug 2025 02:15:18 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2153982#M58675 sam_wu_7911 2025-08-19T02:15:18Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2155021#M58680 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/253902">@sam_wu_7911</a>&nbsp;</P> <P>May i ask is your target also lpc55s36 board?</P> <P>BR</P> <P>Harry</P> Wed, 20 Aug 2025 07:31:54 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2155021#M58680 Harry_Zhang 2025-08-20T07:31:54Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2155627#M58684 Hi <a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/229957">@Harry_Zhang</a><BR /><BR />Yes, I did try the target of the LPC55S36 board.<BR /><BR />Also, I tried another sensor IC with the same situation.<BR /><BR />Could you please provide me with a solution for triggering the last two clock ticks? I'll appreciate it. Thu, 21 Aug 2025 02:15:16 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2155627#M58684 sam_wu_7911 2025-08-21T02:15:16Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2157420#M58688 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/253902">@sam_wu_7911</a>&nbsp;</P> <P>When you enter Hot join,</P> <P>You can try to send response ACK.</P> <LI-CODE lang="markup">I3C_MasterEmitIBIResponse(EXAMPLE_MASTER, kI3C_IbiRespAck);</LI-CODE> <P>And then&nbsp; dynamically assigning addresses.</P> <P>BR</P> <P>Harry</P> Mon, 25 Aug 2025 08:20:43 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2157420#M58688 Harry_Zhang 2025-08-25T08:20:43Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2157427#M58689 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/229957">@Harry_Zhang</a>&nbsp;</P><P>&nbsp;</P><P>Do you mean when the Controller received the Hot Join Interrupt,&nbsp;<SPAN>sending a response ACK?</SPAN></P><P><SPAN>Is it like the code below?</SPAN></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="螢幕擷取畫面 2025-08-25 162747.png" style="width: 693px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/353908i5C736EED19BE8169/image-size/large?v=v2&amp;px=999" role="button" title="螢幕擷取畫面 2025-08-25 162747.png" alt="螢幕擷取畫面 2025-08-25 162747.png" /></span></P><P>&nbsp;</P><P>BRs,</P><P>Sam&nbsp;</P> Mon, 25 Aug 2025 08:30:46 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2157427#M58689 sam_wu_7911 2025-08-25T08:30:46Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2157870#M58694 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/253902">@sam_wu_7911</a>&nbsp;</P> <P>Yes, you are right. and&nbsp;then dynamically assigning addresses.&nbsp; you can try.</P> <P>BR</P> <P>Harry</P> Tue, 26 Aug 2025 01:40:54 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2157870#M58694 Harry_Zhang 2025-08-26T01:40:54Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2188193#M58872 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/229957">@Harry_Zhang</a>&nbsp;</P><P>&nbsp;</P><P>After applying your solution, the last two clocks appear. However, after the ack is the stop condition, and that doesn't match the I3C spec.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="22. Hot Join ACK with stop condition.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/361374i58970F2E20789559/image-size/large?v=v2&amp;px=999" role="button" title="22. Hot Join ACK with stop condition.png" alt="22. Hot Join ACK with stop condition.png" /></span></P><P>Following the spec, there shall be a repeated START condition rather than a STOP. Do you have further ideas?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="15. HJ (Hot-join).png" style="width: 746px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/361375i9B9EFA56CBA42B90/image-size/large?v=v2&amp;px=999" role="button" title="15. HJ (Hot-join).png" alt="15. HJ (Hot-join).png" /></span></P> Fri, 17 Oct 2025 09:19:45 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2188193#M58872 sam_wu_7911 2025-10-17T09:19:45Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2196262#M58942 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/253902">@sam_wu_7911</a>&nbsp;</P> <P>In i3c spec,&nbsp;after the ack is the stop condition or repeated start condition.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Harry_Zhang_0-1761878366328.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363387iE786A931F41F606C/image-size/medium?v=v2&amp;px=400" role="button" title="Harry_Zhang_0-1761878366328.png" alt="Harry_Zhang_0-1761878366328.png" /></span></P> <P>This is my code.&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Harry_Zhang_1-1761878525136.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363388i2D55D4ADDA3E7008/image-size/medium?v=v2&amp;px=400" role="button" title="Harry_Zhang_1-1761878525136.png" alt="Harry_Zhang_1-1761878525136.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Harry_Zhang_2-1761878543145.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363390i240E6301DF2431D4/image-size/medium?v=v2&amp;px=400" role="button" title="Harry_Zhang_2-1761878543145.png" alt="Harry_Zhang_2-1761878543145.png" /></span></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Harry_Zhang_3-1761878585315.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363391i9DB7EFB136B252C2/image-size/medium?v=v2&amp;px=400" role="button" title="Harry_Zhang_3-1761878585315.png" alt="Harry_Zhang_3-1761878585315.png" /></span></P> <P>You can try.</P> <P>BR</P> <P>Harry</P> Fri, 31 Oct 2025 02:43:26 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55S36-I3C-SCL-isn-t-completed-during-Hot-Join/m-p/2196262#M58942 Harry_Zhang 2025-10-31T02:43:26Z