The 1/4-rate downconverter naively negated the input signals (y = -x)
which doesn't work when the signal is at full scale. In particular,
signals that are at full negative scale get converted to zeros (even
though 2's complement would be to return the same number, although that
would also be incorrect).
This fix changes it such that the smallest negative value gets converted
to the largest positive value.
This is not a mathematical correction inversion, but a minor amplitude
distortion. However, since we're already at full scale, and thus
probably clipping, this is preferable to the incorrect resolution of the
regular inversion. Put differently, there is no better value in this
case.
Original-commit: 8bd982745e6247cf3cf3da52925c65126287428a
The FSRU (aka EISCAT) was never supported in UHD 4.0. The FPGA
repository never had the relevant files, and the block controller also
never existed. This removes all the corresponding files from MPM, as
well as some references from makefiles.
Original-commit: ba00ff0cf5c0ced093e0be12b3006fe2f657a58a
USRP N230 is no longer supported starting with UHD 4, and thus, we can
remove it from the image manifest. This will no longer download N230
images when calling uhd_images_downloader from UHD 4.
Original-commit: f1f6d8eac52bfecd840ace95c2d357641ae3b09c
Currently, the build process copies the .twr and .syr files into the
build/ process after running ISE. For a succinct utilization report,
those files are not suitable, though, because they contain too much
information.
However, the build process already produces a custom, short utilization
report using grep and a summary of those reports. This patch modifies
the build such that the same output is copied into
a usrp_$product_fpga.rpt file, similar to our gen-3 devices.
Original-commit: 3a9f3204842d9851fef0e87b6b7d27261624a7fc
These pins control hardware-controlled fast-lock for tuning or
cycle-accurate gain control. This commit does nothing to these pins
other than expose them into the design and assign them to zero. This
does not change the current behaviour (the motherboard has pull-downs on
these pins, so they're low by default).
Original-commit: c891f2d8738bc1b73bb92d88623f4760f9e2bd1e
Before this change, only the channel 0 ATR state was sent to the
db_control module. For TwinRX, this had the disadvantage that when only
Channel 1 was used, the FP- and LED-GPIOs could not track the radio's
ATR state (e.g., no LED would light up in this case).
Note that unlike UHD 3, there is only one db_control module per slot.
There are therefore no options to map GPIOs to track the ATR state of an
individual channel.
Original-commit: f23ab72129041777bcd3357a1f4e37b29e62dd86
The script was previously only Python 2 compatible.
Python 2 support is now removed, so we don't maintain backwards
compatibility with Python 2.
This also fixes all linter warnings.
Original-commit: 6046e1a812ba2065d6ae13b4c4afdce8abc99d4f
- 2to3 was used to convert the Python scripts, except where the tool
choked and manual intervention was required
- All references to "python" where replaced with "python3"
- buffer() was replaced by memoryview()
Original-commit: ca68195b5d12c5410cfac8d459a0b0902c4c72c7
It was set to E320_HG, which is not a valid target, causing build errors
unless -t E320_1G was provided to rfnoc_image_builder.
Original-commit: 9ed42affcaa88e026cb4f82807e69b546ed30c8c
- Fixed some incorrect comments
- Fixed some missing wire declarations for internal NIC
- Fix wire declarations for GPIO (they were declared too late)
Original-commit: b18eaa75de2d1dcba2a1be0ee0b862a57e976cca
The FPGA codebase was removed from the UHD repository in 2014 to reduce
the size of the repository. However, over the last half-decade, the
split between the repositories has proven more burdensome than it has
been helpful. By merging the FPGA code back, it will be possible to
create atomic commits that touch both FPGA and UHD codebases. Continuous
integration testing is also simplified by merging the repositories,
because it was previously difficult to automatically derive the correct
UHD branch when testing a feature branch on the FPGA repository.
This commit also updates the license files and paths therein.
We are therefore merging the repositories again. Future development for
FPGA code will happen in the same repository as the UHD host code and
MPM code.
== Original Codebase and Rebasing ==
The original FPGA repository will be hosted for the foreseeable future
at its original local location: https://github.com/EttusResearch/fpga/
It can be used for bisecting, reference, and a more detailed history.
The final commit from said repository to be merged here is
05003794e2da61cabf64dd278c45685a7abad7ec. This commit is tagged as
v4.0.0.0-pre-uhd-merge.
If you have changes in the FPGA repository that you want to rebase onto
the UHD repository, simply run the following commands:
- Create a directory to store patches (this should be an empty
directory):
mkdir ~/patches
- Now make sure that your FPGA codebase is based on the same state as
the code that was merged:
cd src/fpga # Or wherever your FPGA code is stored
git rebase v4.0.0.0-pre-uhd-merge
Note: The rebase command may look slightly different depending on what
exactly you're trying to rebase.
- Create a patch set for your changes versus v4.0.0.0-pre-uhd-merge:
git format-patch v4.0.0.0-pre-uhd-merge -o ~/patches
Note: Make sure that only patches are stored in your output directory.
It should otherwise be empty. Make sure that you picked the correct
range of commits, and only commits you wanted to rebase were exported
as patch files.
- Go to the UHD repository and apply the patches:
cd src/uhd # Or wherever your UHD repository is stored
git am --directory fpga ~/patches/*
rm -rf ~/patches # This is for cleanup
== Contributors ==
The following people have contributed mainly to these files (this list
is not complete):
Co-authored-by: Alex Williams <alex.williams@ni.com>
Co-authored-by: Andrej Rode <andrej.rode@ettus.com>
Co-authored-by: Ashish Chaudhari <ashish@ettus.com>
Co-authored-by: Ben Hilburn <ben.hilburn@ettus.com>
Co-authored-by: Ciro Nishiguchi <ciro.nishiguchi@ni.com>
Co-authored-by: Daniel Jepson <daniel.jepson@ni.com>
Co-authored-by: Derek Kozel <derek.kozel@ettus.com>
Co-authored-by: EJ Kreinar <ej@he360.com>
Co-authored-by: Humberto Jimenez <humberto.jimenez@ni.com>
Co-authored-by: Ian Buckley <ian.buckley@gmail.com>
Co-authored-by: Jörg Hofrichter <joerg.hofrichter@ni.com>
Co-authored-by: Jon Kiser <jon.kiser@ni.com>
Co-authored-by: Josh Blum <josh@joshknows.com>
Co-authored-by: Jonathon Pendlum <jonathan.pendlum@ettus.com>
Co-authored-by: Martin Braun <martin.braun@ettus.com>
Co-authored-by: Matt Ettus <matt@ettus.com>
Co-authored-by: Michael West <michael.west@ettus.com>
Co-authored-by: Moritz Fischer <moritz.fischer@ettus.com>
Co-authored-by: Nick Foster <nick@ettus.com>
Co-authored-by: Nicolas Cuervo <nicolas.cuervo@ettus.com>
Co-authored-by: Paul Butler <paul.butler@ni.com>
Co-authored-by: Paul David <paul.david@ettus.com>
Co-authored-by: Ryan Marlow <ryan.marlow@ettus.com>
Co-authored-by: Sugandha Gupta <sugandha.gupta@ettus.com>
Co-authored-by: Sylvain Munaut <tnt@246tNt.com>
Co-authored-by: Trung Tran <trung.tran@ettus.com>
Co-authored-by: Vidush Vishwanath <vidush.vishwanath@ettus.com>
Co-authored-by: Wade Fife <wade.fife@ettus.com>
Original-commit: bafa9d95453387814ef25e6b6256ba8db2df612f
