Search found 43 matches

by xaerox
Mon Sep 02, 2019 10:40 am
Forum: XMOS Devices
Topic: USB on Tile 0 on XUF212
Replies: 1
Views: 3090

USB on Tile 0 on XUF212

Hello together, I'm planning a new schematic using USB-Audio on tile 0 und the XUF212-Chip (TQ128-Package). Reading the datasheet of this processor I can see, that the internatl Flash is connected to X0D04...X0D07 (4B) and X0D10 (1C) and X0D01 (1B). Using USB on tile 0 we would also use the Ports co...
by xaerox
Mon Sep 02, 2019 10:30 am
Forum: Q&A
Topic: PDM Mic and USB-Audio on XU208
Replies: 9
Views: 8998

Re: PDM Mic and USB-Audio on XU208

Thank you for your replies!
I just tried it on a prototype and my computer detects the USB-Audio device. But no samples are transferred.

I'm solving the problem using the XUF212 chip now.

Thank you very much!
by xaerox
Mon Jul 29, 2019 10:10 am
Forum: Q&A
Topic: PDM Mic and USB-Audio on XU208
Replies: 9
Views: 8998

Re: PDM Mic and USB-Audio on XU208

Thank you for your support. You gave me some usefull tips.
I'm going on trying to work on 8 cores and I'll test USB-Audio this afternoon.

I'll post if it works/doesn't work.

Best, Thomas
by xaerox
Fri Jul 26, 2019 2:44 pm
Forum: Q&A
Topic: PDM Mic and USB-Audio on XU208
Replies: 9
Views: 8998

Re: PDM Mic and USB-Audio on XU208

Thank you for your help, akp! Currently I'm working on 8 Cores for USB-Audio and PDM. The PDM-Lib needs 4 Cores for 8 Channel Audio: - mic_array_pdm_rx - mix_array_decimate_to_pcm_4ch (first 4 channels) - mix_array_decimate_to_pcm_4ch (last 4 channels) - pdm_process I tried to make a streaming chane...
by xaerox
Tue Jul 23, 2019 11:22 am
Forum: Q&A
Topic: PDM Mic and USB-Audio on XU208
Replies: 9
Views: 8998

Re: PDM Mic and USB-Audio on XU208

Hello together, I checked it out and removed all I2S-Code. But now I have the problem, that the PDM-tasks will need 5 Cores and USB-Audio 4 another cores. So it will not work on XUF208-256-TQ64. I deactivated 4 PDM Mics, so that I only use one decimator and the result is 8 cores. The XUD Manager is ...
by xaerox
Wed Jul 17, 2019 10:17 am
Forum: Q&A
Topic: PDM Mic and USB-Audio on XU208
Replies: 9
Views: 8998

PDM Mic and USB-Audio on XU208

Hello everybody! I hope you can help me. I started a new xTime-Composer-Project using following steps for an XUF208-256...: https://www.xmos.com/download/AN01027:-Porting-the-XMOS-USB-2.0-Audio-Reference-Software-onto-XU208-custom-hardware(1.0.0rc1).pdf I only need PDM-Mics and USB Audio and no addi...
by xaerox
Thu May 02, 2019 3:54 pm
Forum: Other Applications
Topic: USB Audio 1.0 Low Sampling Rates
Replies: 0
Views: 10735

USB Audio 1.0 Low Sampling Rates

Dear all, I'm trying to use the multichannel audio platform usb-audio system with class 1 where I want to use the sampling frequency 16000 Hz. Can somebody tell me, while Windows 7 doesn't recognize it as 16kHz Audio Device, but as 48 kHz? I see no other way fixing this problem. I also tried using t...
by xaerox
Wed Jan 24, 2018 8:01 pm
Forum: General Questions
Topic: Using ESP8266/32 to write Flash
Replies: 12
Views: 35000

Re: Using ESP8266/32 to write Flash

Thank you mon2!
I already worked with tag-connect products :)
by xaerox
Wed Jan 24, 2018 7:07 pm
Forum: General Questions
Topic: Using ESP8266/32 to write Flash
Replies: 12
Views: 35000

Re: Using ESP8266/32 to write Flash

Wow that sounds like a real nice solution! Of course I'm applying some pads for external access to the flash in my prototype. The first start of the board, the ESP will be activated first and hold the XMOS in Reset. So in production later, only the ESP will be programmed. After programming the ESP a...
by xaerox
Wed Jan 24, 2018 5:46 pm
Forum: General Questions
Topic: Using ESP8266/32 to write Flash
Replies: 12
Views: 35000

Re: Using ESP8266/32 to write Flash

Thank you infiniteimprobability and mon2! I didn't know, that XMOS can boot from SPI Flash instead of QSPI. That would be the simplest solution and sufficient for our project. So I want to tell more about my purposes. I want to design a new PCB where an XMOS, ESP-WiFi-Module and IS25LP080D Flash are...