On 07/23/2018 06:57 AM, Rob Kossler wrote: > Martin, > Re-flashing the SD card with the 3.12 image fixed my issue!
Rob, that's great news, and I'm happy you're unstuck! I'm still not entirely sure what the exact reason is for this is, but here's a short analysis: On the N310, we use an architecture where a piece of software called 'MPM' runs on the device and handles most of the device-specific controls. Sometimes we need to fix bugs in MPM, which is a little more annoying than fixing bugs in UHD because it's a bit harder to update. However, whenever we change something which *requires* you to update MPM, we will bump a compat number. It looks like we made a change that would have required a compat number update, but we missed that and didn't change the compat number. The end result is that UHD 3.12 continued to happily work with MPM 3.11, but really shouldn't have. This explains why your 3.11 UHD was fine (because the device was running MPM 3.11), but your UHD 3.12 was only fine when you only updated MPM. Like I said, we normally would force users to upgrade by changing the compat number, which we didn't in this case. However, when issues like this pop up, a good thing to try is to update your SD card image. You don't have to remove the SD card in most cases, you can use our Mender-based workflow (see here: http://files.ettus.com/manual/page_usrp_n3xx.html#n3xx_rasm_mender). Cheers, Martin _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
