Hi all, I'm still trying to reach 56MS/s on a B210 without (too many) overflows. I was told that sc12 used to work with the B210 but broke at some point.
Can someone confirm and tell me what version I should try? On Windows, with all versions of 3.10.0.0, I get an error, whether I use sc12 or not: *Error: RuntimeError: fifo ctrl timed out getting a send buffer* With uhd_3.10.3.0-release_Win64_VS2015.exe I can't use sc12: Error: LookupError: KeyError: Cannot find a conversion routine for > conversion ID > Input format: sc12_item32_le > Num inputs: 1 > Output format: sc16 > Num outputs: 1 On Windows and Linux, UHD 3.12.0.0, with sc8, I don't get any overflow with the following: rx_samples_to_file.exe --null --time 20 --freq 2450e6 --gain 50 --spb 680 --rate 55e6 --wirefmt sc8 With sc16 I get better results adding *--args "num_recv_frames=44,recv_frame_size=680"* , around 900 overflows instead of almost 6000 without the *--args*. With the same *--args* with sc8 I get > [ERROR] [STREAMER] The receive packet handler caught a value exception. > ValueError: bad vrt header or packet fragment > Error: Receiver error: ERROR_CODE_BAD_PACKET With sc12, I always get that error, whether I use *--args* or not. When going from 3.12.0.0 to 3.13.0.1, uhd_images_downloader.py says everything is up-to-date, but when starting the B210 it says > Error: RuntimeError: Expected FPGA compatibility number 15, but got 14: > The FPGA build is not compatible with the host code build. So I removed all FPGA and FW and ran uhd_images_downloader.py again. On Windows with 3.13.0.1, I can use sc12 but it doesn't seem to make much difference whether I use sc16, sc12 or sc8 with *--args "num_recv_frames=44,recv_frame_size=680"*, I get respectively 1880, 1840 and 1780 overflows over 20s. Without the *--args*, I get 6600, 5460 and 3060 overflows respectively. So again, what version of UHD should I use if I wish to use sc12 with a B210? Thanks.
_______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
