Hello all, I'm using PCM2705 with SPDIF out and SPI connected to a uC for reprogramming of USB descriptor.
Host pin is connected directly to USB Vbus and D+ pullup is derived from USB Vbus.
It seems that descriptor reprogramming does not take effect before I have plugged and unplugged the USB cable, then send ROM descriptor through SPI and then plug again the USB cable.
If I send ROM descriptor at power up with USB cable already plugged, it show "USB audio DAC".
Should I enable the D+ pullup only after ROM desc reprogramming? The datasheet seems to have not so much detail about it.