Failed to send NIOS II request: Operation timed out

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cazz2660
Posts: 2
Joined: Wed Jul 06, 2022 8:12 am

Failed to send NIOS II request: Operation timed out

Post by cazz2660 »

Hi everyone, I've recently purchased a new BladeRF due to a power issue with the old one. I am running into an issue trying to create the AGC tables, i've posted the error below. I've tried it with the most up to date firmware, fpga and libbladerf, i've also tried a combination of older firmwares and the corresponding FPGA file. The newer firmware/fpga causes it to time out quicker than the older ones. I would really appreciate any help on this. The only posts I can find related say to revert back to FPGA v11 but this makes no difference for me. I've also tried it on different versions of Ubuntu and on the raspberry Pi, same issue no matter what the OS version. I didn't have this problem on the old BladeRF so trying to work out what could be different in the space of a few weeks! Also tried different USB cables and ports.

Board info / version -

Board: Nuand bladeRF (bladerf1)
VCTCXO DAC calibration: 0x9050
FPGA size: 40 KLE
FPGA loaded: yes
Flash size: 32 Mbit
USB bus: 2
USB address: 10
USB speed: SuperSpeed
Backend: libusb
Instance: 0

bladeRF-cli version: 1.8.0-0.2021.10-2
libbladeRF version: 2.4.1-0.2021.10-2
Firmware version: 2.4.0-git-a3d5c55f
FPGA version: 0.14.0 (configured from SPI flash)


Error happening -

bladeRF> cal table dc rx

Calibrated @ 967500000 Hz: I= 192 (Error: 0.81), Q= 224 (Error: 1.75) DC-LUT: Max (I=-102, Q=-33) Mid (I= 10, Q= 5) Min (I= 25, Q= 5)[ERROR @ host/libraries/libbladeRF/src/backend/usb/libusb.c:1071] Hit stall for buffer 0x55ffd674e830

[ERROR @ host/libraries/libbladeRF/src/backend/usb/nios_access.c:68] Failed to send NIOS II request: Operation timed out
[ERROR @ host/libraries/libbladeRF/src/backend/usb/nios_access.c:68] Failed to send NIOS II request: Operation timed out
[ERROR @ host/libraries/libbladeRF/src/backend/usb/nios_access.c:68] Failed to send NIOS II request: Operation timed out
[ERROR @ host/libraries/libbladeRF/src/backend/usb/nios_access.c:68] Failed to send NIOS II request: Operation timed out

Error: File or device I/O failure
cazz2660
Posts: 2
Joined: Wed Jul 06, 2022 8:12 am

Re: Failed to send NIOS II request: Operation timed out

Post by cazz2660 »

Update: this combination of Firmware/FPGA works -

Firmware 2018-06-28 - v2.2.0
FPGA 2018-09-12 - v0.8.0
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