why UUID reversed after registeredhttps://devzone.nordicsemi.com/f/nordic-q-a/27512/why-uuid-reversed-after-registeredHi guys, I notice that the bytes array of UUID is reversed after registerd. For example, I define the UUID marco as follows and registe it at ble_nus_init(). #define NUS_BASE_UUID {{0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3en-USTelligent Community 13Thu, 23 Nov 2017 07:04:58 GMTRE: why UUID reversed after registeredhttps://devzone.nordicsemi.com/thread/108662?ContentTypeID=1Thu, 23 Nov 2017 07:04:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:07fcf5bc-e3b4-4d24-8e44-83d8c8271250piepie<p>Now I got it.The bytes displayed in the MCP is big-endian. thanks, RK.</p><div style="clear:both;"></div>RE: why UUID reversed after registeredhttps://devzone.nordicsemi.com/thread/108661?ContentTypeID=1Thu, 23 Nov 2017 04:40:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5834b660-edac-4f67-873d-2ed75304a210RK<p>Because it&#39;s transmitted little-endian per the spec. So if you define it like that as a sequence of bytes then the first one will be the last one.</p><div style="clear:both;"></div>