Open xross opened 1 year ago
Confirmed timing is not met at 88.2 with TDM slave and OUT_VOLUME_IN_MIXER, data misses timing by up to 2 bit clocks.
Over-clocking the XS2 device to 600MHz "resolves" the issue, further confirming the MIPS/timing theory.
By default lib_xua runs output volume processing in the mixer task if it is present (OUT_VOLUME_IN_MIXER=1)
When TDM is enabled some issues have been discovered through testing, we assume this is due to the larger MIPS requirement of TDM.
This has been experienced in app_usb_aud_xk_216_mc with build config 2ASi16o16xxxxxx_tdm8, for example.
https://github.com/xmos/sw_usb_audio/pull/147 moves volume processing to the decouple task for the TDM configs.