I'm trying to go about creating a USB Audio interface on a NUCLEO-H7S3L8, receiving USB audio and forwarding it to the SAI, in order to send to an external DAC.
Among other tests, I went back to checking when the functions in usbd_audio_if.c get called, to set up transfers of the packets received.
And while in a previous version of the same project, on audio playback on the host, AUDIO_AudioCmd_HS() was called, allowing me to continue handling data accordingly, after a Cube MX update (6.14->6.15) and some changes on DMA (to get circular -> non-circular) and SAI (Output Drive enabled) settings, it no longer gets called on playback (a breakpoint within it never gets reached).
Following the IRQ handler function for USB on either playback or idle, it only ends up within the code block for handling an incomplete "ISO OUT Interrupt", reaching the "__HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT)" macro.
Since the changes I've made ever since it was functional seem mostly irrelevant, I can't exactly find why this is the case, so if anybody has any advice, it'd be much appreciated.
I'll attach usbd_audio_if.c where I'm checking for it, as well as the IOC file of the project (where most of the USB settings are similar to those of the Audio_Standalone example for STM32H7S78_DK).
