USB Audio Microphone on Windows XP, 7, 8

[mahault]

Posted on July 07, 2014 at 17:16

The original post was too long to process during our migration. Please click on the attachment to read the original post.

[lowpowermcu]

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]

Posted on July 16, 2014 at 15:01

Thank you for your reply.

It is now working :)

[skufaev]

Posted on September 11, 2014 at 23:20

Can you share source code for init and endpoint using?

Beer will be provided :)

[maggie]

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]

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]

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]

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.