On 9/15/19 7:55 AM, Wael Ali via USRP-users wrote: > Dear all, > please help me with this issue, > > I've built a poky distro. with yocto project for wandboard and uhd package > is pre-installed. > > the problem is, when I tried to use "uhd_usrp_probe" with (three different > usrp 205mini) I faced the following error > > root@wandboard:~# uhd_usrp_probe > linux; GNU C++ version 7.3.0; Boost_106600; UHD_003.010.002.000-release > > -- Loading firmware image: /usr/share/uhd/images/usrp_b200_fw.hex... > -- Detected Device: B205mini > -- Loading FPGA image: /usr/share/uhd/images/usrp_b205mini_fpga.bin... > 39%Error: EnvironmentError: IOError: load_fpga: cannot write bitstream to > FX3 (-4: LIBUSB_ERROR_CODE -4)
A quick google suggest error -4 is No device, are you sure the USB is working? Do you seen messages when you insert/remove the b205? What does ls usb say? Philip > root@wandboard:~# uhd_usrp_probe > linux; GNU C++ version 7.3.0; Boost_106600; UHD_003.010.002.000-release > > -- Loading firmware image: /usr/share/uhd/images/usrp_b200_fw.hex... > -- Detected Device: B205mini > -- Loading FPGA image: /usr/share/uhd/images/usrp_b205mini_fpga.bin... > 38%Error: EnvironmentError: IOError: load_fpga: cannot write bitstream to > FX3 (-4: LIBUSB_ERROR_CODE -4) > root@wandboard:~# uhd_usrp_probe > linux; GNU C++ version 7.3.0; Boost_106600; UHD_003.010.002.000-release > > -- Loading firmware image: /usr/share/uhd/images/usrp_b200_fw.hex... > -- Detected Device: B205mini > -- Loading FPGA image: /usr/share/uhd/images/usrp_b205mini_fpga.bin... > 38%Error: EnvironmentError: IOError: load_fpga: cannot write bitstream to > FX3 (-4: LIBUSB_ERROR_CODE -4) > > As you can see, uhd: 3.10.2 > also, I faced the same problem after re-downloading fpga image from ettus > website > > thanks in advance > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > _______________________________________________ USRP-users mailing list USRP-users@lists.ettus.com http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
