USB Audio Microphone on Windows XP, 7, 8

mahault · ‎2014-07-07

Posted on July 07, 2014 at 17:16

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lowpowermcu · ‎2014-07-11

Posted on July 11, 2014 at 10:06

Hi Mah,

You have to add a feature unit descriptor and all relevant class requests(Get Min, Max, Res, Cur).

mahault · ‎2014-07-16

Posted on July 16, 2014 at 15:01

Thank you for your reply.

It is now working :)

skufaev · ‎2014-09-11

Posted on September 11, 2014 at 23:20

Can you share source code for init and endpoint using?

Beer will be provided :)

maggie · ‎2014-10-08

Posted on October 09, 2014 at 08:49

Me, too! Need reference to setup isochrononous IN endpoint for USB microphone.

Any reference I can check?

# Although I can't offer any beers...

Thanks!

alan2 · ‎2015-06-30

Posted on June 30, 2015 at 10:46

Hi

I see that this post is a bit old but i'm at a loss trying to get my Iso feedback endpoint to work properly for my USB speaker application. I currently see the IN transaction but i don't get the data sent with it. I've used 'USBD_LL_OpenEP' to open the endpoint and USBD_LL_Transmit to send data but i can't see the data in the transaction ! its very frustrating.

alan2 · ‎2015-06-30

Posted on June 30, 2015 at 13:01

I found the problem ! i wasn't creating a txFIFO buffer in usbd_conf.c

i'm using EP1 as the feedback path and so done this. and now i can see the data :)

HAL_PCDEx_SetTxFiFo(&hpcd, 1, 0x200);

Andy Rochette · ‎2017-04-07

Posted on April 07, 2017 at 11:32

Hello,

Can you tell me the steps to follow to send isoc packets using the

STM32 USB FS library

? Where do u call these functions ?

Thanks, AR.