The DFU device on Windows requires the Theyscon USB Audio 2.0 Windows driver version or later.Ĥ 2 Creating factory and upgrade images with XFLASH IN THIS CHAPTER Installing the factory image to the device Creating the upgrade image Related documents 2.1 Installing the factory image to the device The DFU device interface is enabled by default in the XMOS USB Audio framework (see devicedefines.h), and explicitly enabled in each reference design by the following line included in the customdefines.h file of each application: # define DFU (1) Use the XMOS Development Tools to run the command: xflash -boot-partition-size 0x factory usb_audio.xe Where the size passed using the -boot-partition-size n argument specifies in bytes the minimum size required to store the boot loader, factory image and any upgrade images. The firmware upgrade for XMOS USB devices implementation uses the USB standard DFU device class mechanism and is based on the following specification: Supported functionality: Download of new firmware to device Upload of existing firmware from device Revert device back to factory image Automatic reboot of device on firmware upgrade You must use XMOS Development Tools version (or later).
To work correctly your development board must contain the latest DFU enabled firmware. 1 DFU loader for XMOS USB AUDIO devices Document Number: Publication Date: 2 XMOS 2014, All Rights Reserved.Ģ DFU loader for XMOS USB AUDIO devices 2/10 Table of Contents 1 Overview 3 2 Creating factory and upgrade images with XFLASH Installing the factory image to the device Creating the upgrade image Related documents Using the DFU loader - Windows (via the Thesycon driver) Set up the image loader Download new firmware Uploading existing firmware from the device Reverting firmware to factory image Related documents Using the DFU loader - OS X (via the XMOS DFU loader) Set up the image loader Download new firmware Uploading existing firmware from the device Reverting firmware to factory image Building the XMOS DFU loader - OS X 10ģ 1 Overview The DFU loader is a flash device firmware upgrade mechanism.
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