forked from PAWPAW-Mirror/lib_xua
Fixes for doc build (#270)
Document moving and rename. Fixes for latest xdoc.
This commit is contained in:
Ross Owen
GitHub
56
doc/dfu/rst/building_xmos_dfu.rst
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56
doc/dfu/rst/building_xmos_dfu.rst
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.. _usb_audiosec_building_xmos_dfu:
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Building the XMOS DFU loader
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============================
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The XMOS DFU loader is provided as source as part of the USB Audio
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framework, located in lib_xua/host/xmosdfu.
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The loader is compiled using libusb, the code for the loader is contained in the
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file ``xmosdfu.cpp``
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macOS
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-----
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To build the loader a Makefile is provided, which can be run as follows:
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``make -f Makefile.OSX64 all``
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This Makefile contains the following:
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.. literalinclude:: Makefile.OSX64
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There is also a 32bit OS X makefile, ``Makefile.OSX32``.
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Linux
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-----
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Similarly to macOS, there are two Linux makefiles provided, ``Makefile.Linux32`` and ``Makefile.Linux64``:
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.. literalinclude:: Makefile.Linux64
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System-wide libusb is used. On Debian-derived systems this can be installed with:
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``apt-get install libusb-1.0.0-dev``
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Raspberry Pi
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------------
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A makefile is provided for Raspbian. libusb is required and can be installed using the ``apt-get`` command from previous Linux section.
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.. literalinclude:: Makefile.Pi
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Windows
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-------
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To build on Windows, you must first install Visual Studio 2019 Build Tools with
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C++ support. `This is available from Microsoft's website. <https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2019>`_
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To build, open a Developer Command Prompt via the start menu and navigate to the
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xmosdfu folder. The command to build is as follows:
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``nmake /f Makefile.Win32``
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This Makefile contains the following:
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.. literalinclude:: Makefile.Win32
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10
doc/dfu/rst/dfu.rst
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10
doc/dfu/rst/dfu.rst
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DFU loader for XMOS USB AUDIO devices
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=====================================
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.. toctree::
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Overview <overview>
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Creating factory and upgrade images with XFLASH <factory_image>
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Using the DFU loader - Windows (via the Thesycon driver) <thesycon_dfu>
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Using the DFU loader - macOS (via the XMOS DFU loader) <xmos_dfu>
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Building the XMOS DFU loader <building_xmos_dfu>
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91
doc/dfu/rst/factory_image.rst
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91
doc/dfu/rst/factory_image.rst
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Creating factory and upgrade images with XFLASH
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===============================================
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Installing the factory image to the device
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------------------------------------------
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The DFU device interface is enabled by default in the XMOS USB Audio framework
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(see ``devicedefines.h``), and explicitly enabled in each reference design
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by the following line included in the ``customdefines.h`` file of each
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application::
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#define DFU (1)
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Use the XMOS Development Tools to run the command:
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``xflash --boot-partition-size 0x30000 --factory usb_audio.xe``
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Where the size passed using the ``--boot-partition-size n`` argument specifies
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in bytes the minimum size required to store the boot loader, factory image and
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any upgrade images.
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The following can be used as a guide to help calculate the required boot
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partition size for a design:
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- boot partition size = loader size + maximum size of factory image +
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maximum size of upgrade images + padding to sector boundaries
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Where:
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- loader size = 0x1000 bytes, or 0x4000 bytes if secure boot functionality is
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used (for tools version 13.1.0 and older)
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- maximum size of factory image = number of xCORE tiles *
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xCORE SRAM size
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- maximum size of upgrade images = (number of xCORE tiles *
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xCORE SRAM size) * number of images to be held in flash concurrently
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The above example sets the boot partition to a size appropriate for designs
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based on a single xCORE tile, where a single upgrade image is required
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in flash at any one time.
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This programs the factory default firmware image into the flash device.
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The device will now support the DFU mechanism, and can use it to safely receive
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firmware updates, as well as revert to the factory firmware image when required,
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such as in the event of a failed upgrade attempt.
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Creating the upgrade image
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--------------------------
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To use the firmware upgrade mechanism you need to build a firmware upgrade
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image:
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#. Edit the ``customdefines.h`` file of the application for the hardware in use,
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and change the Device Version Number by defining ``BCD_DEVICE``.
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#. Rebuild the application.
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To generate the firmware upgrade image run the following command:
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``xflash --factory-version 13 --upgrade 1 usb_audio.xe -o new_firmware.bin``
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Where the tools version passed using the ``--factory-version version``
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argument specifies the version of the tools used to create the factory image.
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This should be passed as ``12`` for images created using tools versions 10, 11
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and 12.
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The ``--upgrade id xe-file [size]`` argument specifies xe-file as an upgrade
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image with version ``id``. Each version number must be a unique number greater
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than 0.
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You should now have the file ``new_firmware.bin`` which contains the
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firmware with the newly specified Device Version Number.
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Related documents
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-----------------
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.. only :: latex
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For further details of the DFU features included in the XMOS USB Audio
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framework and their configuration please see the "Device Firmware Upgrade
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(DFU)" (:ref:`usb_audio_sec_dfu`) and the "Configuration Defines"
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(:ref:`sec_custom_defines_api`) sections of the USB Audio Design Guide.
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.. only :: html
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For further details of the DFU features included in the XMOS USB Audio
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framework and their configuration please see the :ref:`usb_audio_sec_dfu`
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and the :ref:`sec_custom_defines_api` sections of the USB Audio Design
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Guide.
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For further details on the use of XFLASH to create factory and upgrade firmware
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images please see the XFLASH Command-Line Manual section of the
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`xTIMEcomposer User Guide <https://www.xmos.com/published/xtimecomposer-user-guide>`_.
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21
doc/dfu/rst/overview.rst
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21
doc/dfu/rst/overview.rst
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Overview
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========
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The DFU loader is a flash device firmware upgrade mechanism. To work correctly
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your development board must contain the latest DFU enabled firmware.
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The firmware upgrade for XMOS USB devices implementation uses the USB standard
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DFU device class mechanism and is based on the following specification:
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http://www.usb.org/developers/devclass_docs/DFU_1.1.pdf
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Supported functionality:
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- Download of new firmware to device
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- Upload of existing firmware from device
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- Revert device back to factory image
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- Automatic reboot of device on firmware upgrade
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You must use XMOS Development Tools version 10.4.1 (or later).
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The DFU device on Windows requires the Theyscon USB Audio 2.0 Windows driver
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version 1.13.3 or later.
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70
doc/dfu/rst/thesycon_dfu.rst
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70
doc/dfu/rst/thesycon_dfu.rst
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Using the DFU loader - Windows (via the Thesycon driver)
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========================================================
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Thesycon provide both GUI and CLI DFU tools, TUSBAudioDfu.exe and dfucons.exe
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respectively. The use of the GUI tool is not covered by this document.
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The correct installation of the Thesycon driver and DFU tools exceeds
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the scope of this document.
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Set up the image loader
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-----------------------
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Run the DFU console tool (``dfucons.exe``) from the Thesycon install folder,
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in a Command Prompt by navigating to:
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``C:\Program Files\Thesycon\TUSBAudio_Driver\``
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To check the device has been detected, run the following command in the DFU
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console:
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``dfucons info``
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The console shows the DFU devices that have been detected.
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Download new firmware
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---------------------
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To program the new firmware run the command:
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``dfucons download new_firmware.bin``
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Note that once this is done the device restarts. The original factory default
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application is still present but the device is now running the upgraded
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application firmware.
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You can check the device has been updated by running the command:
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``dfucons info``
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This will display the device revision.
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Uploading existing firmware from the device
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-------------------------------------------
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You can retrieve a firmware image from the device, providing an upgrade image is
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present.
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Run the command:
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``dfucons upload currentfirmware.bin``
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The file ``currentfirmware.bin`` contains the latest upgrade image. This file is
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an exact copy of the data from the flash and can be downloaded to the device
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again to test.
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Reverting firmware to factory image
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-----------------------------------
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To revert the device back to its factory (i.e XFLASH) installed state from the
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new firmware, run the command:
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``dfucons revertfactory``
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The device will now be running, and only contain the factory firmware, which can
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be seen by checking the device version once more.
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Related documents
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-----------------
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For further details on the use of the Thesycon DFU tools please see
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`Thesycon USB Audio 2.0 Driver for Windows User Manual <https://www.xmos.com/published/usb-audio-class-20-evaluation-driver-windows>`_.
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3
doc/dfu/rst/xdoc.conf
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3
doc/dfu/rst/xdoc.conf
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XMOSNEWSTYLE=2
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SOURCE_INCLUDE_DIRS=../../../lib_xua/host/xmosdfu
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SPHINX_MASTER_DOC=dfu
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55
doc/dfu/rst/xmos_dfu.rst
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55
doc/dfu/rst/xmos_dfu.rst
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Using the DFU loader - macOS (via the XMOS DFU loader)
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======================================================
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The XMOS DFU loader is provided as source as part of the XMOS USB Audio software
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framework, see :ref:`usb_audiosec_building_xmos_dfu`.
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NOTE: Windows requires the installation of libusbK drivers on the DFU endpoint.
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We recommend using `Zadig <https://zadig.akeo.ie/>`_.
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Set up the image loader
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-----------------------
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#. Open a terminal
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#. Change directory to where the loader has been built
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#. Point DYLD_LIBRARY_PATH to libusb/OSX64:
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``export DYLD_LIBRARY_PATH=$PWD/libusb/OSX64:$DYLD_LIBRARY_PATH``
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Download new firmware
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---------------------
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To program the new firmware run the command:
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``./bin/xmosdfu XMOS_L2_AUDIO2_PID --download new_firmware.bin``
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Replace ``XMOS_L2_AUDIO2_PID`` with product ID of your target device. Invoke
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``xmosdfu`` with no arguments to get a list of all supported product IDs.
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Note that once this is done the device restarts. The original factory default
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application is still present but the device is now running the upgraded
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application firmware.
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Uploading existing firmware from the device
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-------------------------------------------
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You can retrieve a firmware image from the device, providing an upgrade image is
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present.
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Run the command:
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``./bin/xmosdfu XMOS_L2_AUDIO2_PID --upload currentfirmware.bin``
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The file ``currentfirmware.bin`` contains the latest upgrade image. This file is
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an exact copy of the data from the flash and can be downloaded to the device
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again to test.
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Reverting firmware to factory image
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-----------------------------------
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To revert the device back to its factory (i.e XFLASH) installed state from the
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new firmware, run the command:
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``./bin/xmosdfu XMOS_L2_AUDIO2_PID --revertfactory``
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The device will now be running, and only contain the factory firmware.
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