2010-04-01 01:08 PM
USB Audio on STM32F105
2011-05-17 04:45 AM
Hi,
Apparently, they rely on using the dedicated PLL with a dedicated audio crystal (14.7456 MHz). In addition to dynamic buffers and ''re-synchronization'' with SOF (used in demo), data seem to be synchronized to the USB clock. It is not an ''perfect solution'' in my opinion. I made some trials (USB Audio Streaming demo) and it seems to work fine at the beginning : the desynchronization appears only after a long time (~45mn in my case) and its duration is relatively short.