d0a97670fa
This change updates the RFNoC specification to increase the SeqNum field from 6 bits to 8 bits. This helps reduce control packet response sequence number aliasing in cases where packets may be dropped or reordered. To make this change while keeping the implementation efficient, the control packet fields have been rearranged to place the most critical information first and to avoid splitting fields across word boundaries. Additionally, compared to the previous version of the specification (as of UHD 4.10), a new ReqSize field has been added. This field represents the read request size. The DataLength field that briefly existed in the change history has been removed. In the new version, NumData represents the number of data words present in the control packet (the same meaning as in the original RFNoC specification), while ReqSize indicates the number of words requested to be read. This means that a large read request can be issued without including dummy data in the request (e.g., ReqSize = 15 while NumData = 0). See separate commits for the corresponding FPGA and host code changes. |
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| .ci | ||
| .github | ||
| firmware | ||
| fpga | ||
| host | ||
| images | ||
| mpm | ||
| tools | ||
| .clang-format | ||
| .clang-format-ignore | ||
| .clang-tidy | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .pre-commit-config.yaml | ||
| .readthedocs.yaml | ||
| CHANGELOG | ||
| CODING.md | ||
| CONTRIBUTING.md | ||
| LICENSE.md | ||
| README.md | ||
USRP Hardware Driver (UHD™) Software
Welcome to the UHD™ software distribution! UHD is the free & open-source software driver and API for the Universal Software Radio Peripheral (USRP™) SDR platform, created and sold by Ettus Research.
UHD supports all Ettus Research USRP™ hardware, including all motherboards and daughterboards, and the combinations thereof.
Documentation
For technical documentation related to USRP™ hardware or UHD system design, check out the UHD and USRP Manual. That is where you can find Installation Instructions, help on how to build UHD from source on different platforms, development guidelines and reference documentation as well as device usage guidance.
Additionally, be sure to check out the Ettus Research FAQ, and the Knowledge Base for useful application notes and tutorials.
OS Support
UHD is primarily developed on Linux, but we also test and support the following operating systems.
- Linux (Fedora and Ubuntu)
- Mac OS X
- Windows 11
Other operating systems will most likely work, too, but are not officially supported.
Applications
UHD can be used to build stand-alone applications with USRP™ hardware, or with third-party applications. Some common toolkits / frameworks are:
- GNU Radio
- RFNoC OOT Blocks
- NI LabVIEW - UHD RFNoC
- NI LabVIEW
- MathWorks Matlab and Simulink
- REDHAWK
- OpenBTS GSM
- Osmocom GSM
- Amarisoft LTE
- Software Radio Systems srsRAN
- Eurecom OpenAirInterface
Directories
host/
The source code for the user-space driver.
mpm/
The source code for the module peripheral manager (MPM). This is code that is run on embedded devices.
firmware/
The source code for all microprocessors in USRP hardware.
fpga/
The source code for the UHD FPGA images.
images/
This contains the package builder for FPGA and firmware images. We provide other tools to download image packages, the scripts in here are mainly relevant for UHD maintainers and -developers.
tools/
Additional tools, mainly for debugging purposes. See the readme-file in that directory for more details on the individual tools.