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bladeRF USB 3.0 Superspeed Software Defined Radio Source Code
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BladeRFx40 RX DC calibration table not found. #827

Open around-the-worldd opened 3 years ago

around-the-worldd commented 3 years ago

Hi! I'm trying to build my own gsm base station on Ubuntu 18.04 with bladeRFx40. After installations of YateBTS and BladeRF; I configured Radio.Band, Radio.C0, Identity.MCC, Identity.MNC, Identity.LAC on YateBTS. After all;

> sudo bladeRF-cli -l /usr/share/Nuand/bladeRF/hostedx40.rbf

Loading fpga...
bladeRF[28250]: [WARNING @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:1705] RX DC calibration table not found. Manual gain control will be used instead.
bladeRF[28250]: [INFO @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:1706] To enable AGC, see "Generating a DC offset table" at https://github.com/Nuand/bladeRF/wiki/DC-offset-and-IQ-Imbalance-Correction
Successfully loaded FPGA bitstream!

I apply instructions on https://github.com/Nuand/bladeRF/wiki/DC-offset-and-IQ-Imbalance-Correction for getting rx dc calibration table.

bladeRF> cal table dc rx

The rx and tx calibration table files saved under /usr/share/Nuand/bladeRF. After that, I'm retrying;

> sudo bladeRF-cli -l /usr/share/Nuand/bladeRF/hostedx40.rbf

Loading fpga...
bladeRF[28250]: [WARNING @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:1705] RX DC calibration table not found. Manual gain control will be used instead.
bladeRF[28250]: [INFO @ host/libraries/libbladeRF/src/board/bladerf1/bladerf1.c:1706] To enable AGC, see "Generating a DC offset table" at https://github.com/Nuand/bladeRF/wiki/DC-offset-and-IQ-Imbalance-Correction
Successfully loaded FPGA bitstream!

I'm getting same warning and my mobile phone cannot find my gsm network to join. I'm using Ubuntu 18.04.

rghilduta commented 3 years ago

What filename was the DC calibration file copied to? Please ensure the filename outputted from bladeRF-cli is not changed. Also depending on OS configurations, please also the locations mentioned in: https://nuand.com/bladeRF-doc/libbladeRF/v2.2.1/configfile.html

around-the-worldd commented 3 years ago

Thanks, the filenames are;

4a8a54b4dd653717e25379477a05909c_dc_rx.tbl 4a8a54b4dd653717e25379477a05909c_dc_tx.tbl

~/.config/Nuand/bladeRF (Nope) ~/.Nuand/bladeRF (Nope) /etc/Nuand/bladeRF (Nope) /usr/share/Nuand/bladeRF (There is)

I copied files under /usr/share/Nuand/bladeRF;

/usr/share/Nuand/bladeRF/4a8a54b4dd653717e25379477a05909c_dc_rx.tbl /usr/share/Nuand/bladeRF/4a8a54b4dd653717e25379477a05909c_dc_tx.tbl

But the same problem persists.

atwelm commented 2 years ago

I'm facing the same issue. Cranking up debugging and adding additional logging it appears in main.c the call for searching for the file is done between BLADERF_FORCE_NO_FPGA_PRESENT being set and unset, which prevents the search from being done.

I don't see it if I start the cli in interactive mode and it seems to find it. Are they simply being loaded silently by third party applications that use the libraries?

I also do not see the error if it can't find it and I start the cli in interactive mode, so things seem a little inconsistent.