https://devzone.nordicsemi.com/f/nordic-q-a/49340/usbd-iso-endpoint-addressI have read through the USBD section in the nRF52820 datasheet and I think I cannot do what I need, but wanted to confirm I am not missing something. I would like to make a USB device that has a isochronous endpoint address of 3. I see that the endpointen-USTelligent Community 13Thu, 04 Jul 2019 07:07:30 GMThttps://devzone.nordicsemi.com/thread/196395?ContentTypeID=1Thu, 04 Jul 2019 07:07:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39db31b4-647e-4742-a2a2-34aa50e36595Amanda Hsieh<p>Hi,&nbsp;</p> <p></p> <p>Please see&nbsp;<a title="Isochronous transactions" href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/usbd.html?cp=3_0_0_5_34_10#concept_usb_iso">Isochronous transactions</a>&nbsp;section for the detail.&nbsp;</p> <p></p> <p>The ISO endpoints have a fixed USB endpoint number, summarized in the table below.</p> <table border="1" cellpadding="4" cellspacing="0"> <tbody> <tr> <td colspan="1" rowspan="1"> <table border="0" cellpadding="4" cellspacing="0" summary=""><caption><span><span>Table 2.<span>&nbsp;</span></span>Isochronous endpoint numbering</span></caption><colgroup span="1"><col span="1"><col span="1"><col span="1"></col></col></col></colgroup> <thead> <tr> <th colspan="1" rowspan="1">ISO endpoint #</th> <th colspan="1" rowspan="1">USB IN endpoint</th> <th colspan="1" rowspan="1">USB OUT endpoint</th> </tr> </thead> <tbody> <tr> <td colspan="1" headers="d2051852e1615" rowspan="1">[0]</td> <td colspan="1" headers="d2051852e1618" rowspan="1">0x88</td> <td colspan="1" headers="d2051852e1621" rowspan="1">0x08</td> </tr> </tbody> </table> </td> </tr> </tbody> </table> <p></p> <p>-Amanda H.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/196382?ContentTypeID=1Thu, 04 Jul 2019 06:15:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:70f44385-3fc1-4601-9149-279b3b2ac53dRK<p>Yes it&#39;s fixed to 8.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/196347?ContentTypeID=1Wed, 03 Jul 2019 21:43:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4124f890-31c8-4687-a0ae-5f60bed61d6dErekoseTCE<p>oops, nRF52840&nbsp; not 820!&nbsp; :-)</p><div style="clear:both;"></div>