Sam, Sorry I haven't gotten back -- it sounds like you're doing everything right. The usual quick fixes probably don't apply here. I haven't had time to look more in depth into it, or to try to replicate it on my own hardware.
Marcus is right -- the E3xx uses an idle image in order to reduce power consumption when the radio is inactive. I'm not sure if there's a flag that will tell UHD not to load the idle image. Nick On Thu, Mar 8, 2018 at 9:30 PM Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com> wrote: > On 03/09/2018 12:11 AM, Samuel Prager via USRP-users wrote: > > Still looking for more info on this problem. > > I have the exact same RfNoC block/software program running on an X300 and > see no such jumps or otherwise unexpected behavior. > > I have attempted to isolate this issue on the E312 by creating the device3 > with the *“no_reload_fpga”* flag. (Appropriate image is loaded before > hand with the uhd_usrp_image_loader. Running my program the first time > works as expected, but if I kill the program and restart, I get this error: > > *“AssertionError: zf_peek32(ctrl_base+ARBITER_RB_ADDR_SPACE) > 0 in > virtual void e300_fifo_mb::release()"* > > The last few lines in the Uhd log file are: > > > > > > > > > > *e300_impl.cpp:639,1,E300,[E300] Setting up dest map for host ep 0 to be > stream 0 device3_impl.cpp:131,0, DEVICE3, Setting up NoC-Shell Control for > port #0 (SID; 00:00>02:10) device3_impl.cpp:139,0,DEVICE3, OK > davice3_impl.cpp:141,0, DEVICE3, Port 16: found NoC-Block with ID > 12AD100000000000. e300_impl.cpp:639,1,E300, [E300] Setting up dest map for > host ep 1 to be stream 1 device3_impl.cpp:160,0,DEVICE3, Setting up NoC > Shell port for #1 (SID: 00:01>02:11)* > > > > Shouldn’t the E312 be able to operate without needing to reload the FPGA > image each time? Has this been tested? I would really appreciate any hints > or pointers into why this is happening. > > Thank you, > > Sam > > The E3xx run an "idle" image when the device is not being used. I cannot > remember the reason for that, TBH. > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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