forked from PAWPAW-Mirror/lib_xua
21 lines
1.4 KiB
ReStructuredText
21 lines
1.4 KiB
ReStructuredText
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Known Issues
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- Quad-SPI DFU will corrupt the factory image with tools version < 14.0.4 due to an issue with libquadflash
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- (#14762) When in DSD mode with S/PDIF output enabled, DSD samples are transmitted over S/PDIF if the DSD and S/PDIF channels are shared, this may or may not be desired
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- (#14173) I2S input is completely disabled when DSD output is active - any input stream to the host will contain 0 samples
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- (#14780) Operating the design at a sample rate of less than or equal to the SOF rate (i.e. 8kHz at HS, 1kHz at FS) may expose a corner case relating to 0 length packet handling in both the driver and device and should be considered un-supported at this time.
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- (#14883) Before DoP mode is detected a small number of DSD samples will be played out as PCM via I2S
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- (#14887) Volume control settings currently affect samples in both DSD and PCM modes. This results in invalid DSD output if volume control not set to 0
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- Windows XP volume control very sensitive. The Audio 1.0 driver built into Windows XP (usbaudio.sys) does not properly support master volume AND channel volume controls, leading to a very sensitive control. Descriptors can be easily modified to disable master volume control if required (one byte - bmaControls(0) in Feature Unit descriptors)
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- 88.2kHz and 176.4kHz sample frequencies are not exposed in Windows control panels. These are known OS restrictions.
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