![]() ![]() Thinkpad:/hdd/devel/xmos/workspace/app_usb_aud_xu208_xhra(master)$ git diffĭiff -git a/src/extensions/audiohw.xc b/src/extensions/audiohw. I did it initially by simply modifying the *_REGREAD, *_REGWRITE macrosĪs shown below. Sorry, I forgot to mention about it in my previous post, these I2C communicationĪttempts were causing audio playback hangs if I recall correctly. I had to disable I2C communication in AudioHwInit and AudioHwConfig callbacks, as I had nothingĬonnected to the I2C bus. I'm not sure which reference design are you using currently, but in my case (xhra2xu208_1v0.zip) In your XUF208-256-TQ64-I10.xn file you have:īut pin X0D37 seems to be not connected to any clock source. I could likely avoid some headache and wasting one piece of XUF208 if I have posted initial version of the I have learnt the hard way the PLL_AVDD needs to be connected to 1V voltage supply, not the 3.3V one. I'm going to post the full schematics for review, after making necessary corrections for version 2 of the PCB. Mono: Playback 127 diff -git a/src/core/xhra_xcore.xn b/src/core/xhra_xcore.xn Playback channels: Front Left - Front Rightįront Left: Playback 127 įront Right: Playback 127 Ĭapabilities: pvolume pvolume-joined pswitch pswitch-joined Windows 10 recognizes the device without a need to manually install any additional drivers.Ĭard 1: XHRAXU208, device 0: USB Audio Src/extensions/audiohw.xc as I had 2 crystal oscillators selected by a GPIO rather than I had only to make changes in src/core/xhra_xcore.xn file as shown below and also needed to modify Which can be found here turned out to be easier in getting a working USB audio class device. If I may suggest, I have also created my first prototype with XMOS processor (XUF-208) and the project are the xmap warnings meaningful? (compiler_output.jpg) is the connection for the I2S even correct? I don't really understand mapping.Ħ. does anyone have any idea what the problem is.ĥ. is there a way to debug the USB connections through the software?Ĥ. is it possible to get such a converter via the Audio reference software?Ģ Are the USB mappings in the XUF208-256-TQ64-I10.xn correct?ģ. ![]() Furthermore, the I2S is connected to pins X0D28, X0D32, X0D27 on the xmos.ġ. I just received USB Audio 2.0 Reference Design kit today, however, the board has been distributed with no software installed and it does not come with any CD for Firmware and the demo driver for Windows. The USB interface is connected to the board as shown in Figure 11 in the data sheet (. But the device is not recognized as a USB device in Windows 10, nor is it recognized by the audio driver. Then I installed the USB Audio 2.0 driver. After some compilation problems I managed to flash the software on the Xmos. Imported the projects in the workspace and trying to build appusbaudxk216mc. With the default firmware flashed works like a charm. Brand new XK-AUDIO-216-MC-AB xCORE-200 Multichannel Audio board. I created my project after the application note: "AN01027 Porting the XMOS USB 2.0 Audio Reference Software onto XU208 custom hardware". Using Windows 10 with the default USB Audio 2.0 driver provided by MS (Thesycon, in fact, if I understand correctly). I got a custom hardware with a XUF208-256-TQ64 and should create a USB to I2S converter to test different DAC. ![]()
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