Search found 14 matches

by anhn@nytec.com
Wed May 10, 2017 4:42 pm
Forum: XMOS Devices
Topic: Programming XUF208-128-TQ64-C10 chip
Replies: 7
Views: 11915

Re: Programming XUF208-128-TQ64-C10 chip

hello, the link to the pdf is not accessible. I tried the link and login and I get an "access restricted" notice. can you provide the pdf to me at anhn@nytec.com. thank you.
by anhn@nytec.com
Wed Apr 26, 2017 7:07 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

I verified that flash boot up is fine. I tested a flash sw load toggling some GPIO pins and that sw runs fine from power cycle. It's the usb audio reference sw that does not run. I am not able to get USB detection/enumeration when the sw is loaded from flash. again, the sw runs fine when loaded thro...
by anhn@nytec.com
Mon Apr 24, 2017 7:27 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

Recap. after it flashes, I would power down the device and remove the JTAG. the system comes up and when the USB is connected, the USB is not detected. The flash used is the same one that is on the xCore-200 Multichannel audio platform v2.0 and connected using the same pin layout as on the v2.0 plat...
by anhn@nytec.com
Mon Apr 24, 2017 6:21 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

another update. I set the min frequency to 44100 and I am getting USB audio streaming to my custom codec. but it only works when running on the debugger ie RAM. it does not work out of flash. the flash download appears successful from the console status. a warning I did get the following warning whi...
by anhn@nytec.com
Mon Apr 24, 2017 3:19 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

Started from power cycle this morning, loaded and ran code on the debugger ie out of RAM, and the Theyson USB Audio control panel detects and is connected to USB audio device on the xCore. sample rate detected as 48KHz per my fixed setting in the sw. but not able to play a wav file (the same wave I ...
by anhn@nytec.com
Mon Apr 24, 2017 2:29 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

MCLK is defined to be at port 1N per the .xn file as defined below. Port 1N on the XU208 is pin X0D37 (ie pin 64 on the chip). There is only one tile on the XU208-128-TQ64 chip.

<Port Location="XS1_PORT_1N" Name="PORT_MCLK_IN"/>
by anhn@nytec.com
Fri Apr 21, 2017 9:49 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

a follow up on the last reply. Looking at the device manager on my windows 10 PC, when the USB is connected to my XMOS hw, USB controller shows it as "unknown USB device" and indicates the following: A request for the USB device descriptor failed. if the same USB cable is connected to the ...
by anhn@nytec.com
Fri Apr 21, 2017 9:25 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

I have a 24Mhz to clk and MCLK pins of the XMOS. I am getting BCLK. but I am not getting USB enumeration ie I have Thesycon USB audio control panel app running to detect USB audio device and it is not indicating that USB audio device is connected. I referenced the USB enumeration thread in this foru...
by anhn@nytec.com
Fri Apr 21, 2017 12:45 am
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

another thing. does the MCLK needs a precise clock of 24.576 MHz for the reference USB audio sw to work or is using the fixed 24MHz input clock fed to MCLK pin work as well?

thanks,
by anhn@nytec.com
Thu Apr 20, 2017 7:27 pm
Forum: Other Applications
Topic: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings
Replies: 18
Views: 16745

Re: Porting USB Audio 2.0 for XU208-128-TQ64 / build warnings

A follow up on the last reply. For example, can I use port 4D1 for MCLK and if so how do I define that on the .xn configuration file.